./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_12-fldsense_nr.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/05-lval_ls_12-fldsense_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f07f53b70b113c395773370086657e2cda4799340cf7206361c323fc526218bf --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 06:10:37,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 06:10:37,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 06:10:37,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 06:10:37,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 06:10:37,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 06:10:37,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 06:10:37,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 06:10:37,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 06:10:37,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 06:10:37,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 06:10:37,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 06:10:37,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 06:10:37,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 06:10:37,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 06:10:37,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 06:10:37,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 06:10:37,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 06:10:37,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 06:10:37,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 06:10:37,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 06:10:37,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 06:10:37,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 06:10:37,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 06:10:37,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 06:10:37,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 06:10:37,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 06:10:37,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 06:10:37,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 06:10:37,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 06:10:37,462 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 06:10:37,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 06:10:37,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 06:10:37,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 06:10:37,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 06:10:37,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 06:10:37,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 06:10:37,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 06:10:37,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 06:10:37,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 06:10:37,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 06:10:37,471 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 06:10:37,493 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 06:10:37,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 06:10:37,495 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 06:10:37,495 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 06:10:37,496 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 06:10:37,496 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 06:10:37,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 06:10:37,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 06:10:37,496 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 06:10:37,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 06:10:37,497 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 06:10:37,497 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 06:10:37,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 06:10:37,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 06:10:37,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 06:10:37,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 06:10:37,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 06:10:37,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 06:10:37,498 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 06:10:37,499 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 06:10:37,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 06:10:37,499 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 06:10:37,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 06:10:37,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 06:10:37,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 06:10:37,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 06:10:37,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:10:37,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 06:10:37,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 06:10:37,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 06:10:37,500 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 06:10:37,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 06:10:37,501 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 06:10:37,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 06:10:37,501 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 06:10:37,501 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 06:10:37,501 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 06:10:37,501 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f07f53b70b113c395773370086657e2cda4799340cf7206361c323fc526218bf Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 06:10:37,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 06:10:37,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 06:10:37,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 06:10:37,811 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 06:10:37,812 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 06:10:37,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_12-fldsense_nr.i [2023-09-01 06:10:38,893 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 06:10:39,196 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 06:10:39,196 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_12-fldsense_nr.i [2023-09-01 06:10:39,216 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78d1c0d8c/3bff7125e3cd4e738a0dbbc8e3a79a72/FLAGcf42bd856 [2023-09-01 06:10:39,229 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78d1c0d8c/3bff7125e3cd4e738a0dbbc8e3a79a72 [2023-09-01 06:10:39,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 06:10:39,232 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 06:10:39,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 06:10:39,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 06:10:39,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 06:10:39,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:10:39" (1/1) ... [2023-09-01 06:10:39,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d54a36e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:39, skipping insertion in model container [2023-09-01 06:10:39,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:10:39" (1/1) ... [2023-09-01 06:10:39,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 06:10:39,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 06:10:39,545 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:10:39,556 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 06:10:39,601 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:10:39,640 INFO L208 MainTranslator]: Completed translation [2023-09-01 06:10:39,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:39 WrapperNode [2023-09-01 06:10:39,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 06:10:39,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 06:10:39,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 06:10:39,642 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 06:10:39,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:39" (1/1) ... [2023-09-01 06:10:39,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:39" (1/1) ... [2023-09-01 06:10:39,695 INFO L138 Inliner]: procedures = 162, calls = 30, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2023-09-01 06:10:39,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 06:10:39,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 06:10:39,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 06:10:39,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 06:10:39,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:39" (1/1) ... [2023-09-01 06:10:39,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:39" (1/1) ... [2023-09-01 06:10:39,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:39" (1/1) ... [2023-09-01 06:10:39,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:39" (1/1) ... [2023-09-01 06:10:39,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:39" (1/1) ... [2023-09-01 06:10:39,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:39" (1/1) ... [2023-09-01 06:10:39,730 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:39" (1/1) ... [2023-09-01 06:10:39,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:39" (1/1) ... [2023-09-01 06:10:39,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 06:10:39,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 06:10:39,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 06:10:39,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 06:10:39,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:39" (1/1) ... [2023-09-01 06:10:39,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:10:39,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:10:39,797 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 06:10:39,828 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 06:10:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 06:10:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 06:10:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 06:10:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 06:10:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 06:10:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 06:10:39,846 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 06:10:39,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 06:10:39,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 06:10:39,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 06:10:39,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 06:10:39,847 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 06:10:39,992 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 06:10:39,994 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 06:10:40,120 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 06:10:40,125 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 06:10:40,125 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 06:10:40,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:10:40 BoogieIcfgContainer [2023-09-01 06:10:40,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 06:10:40,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 06:10:40,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 06:10:40,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 06:10:40,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 06:10:39" (1/3) ... [2023-09-01 06:10:40,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1297dcf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:10:40, skipping insertion in model container [2023-09-01 06:10:40,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:10:39" (2/3) ... [2023-09-01 06:10:40,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1297dcf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:10:40, skipping insertion in model container [2023-09-01 06:10:40,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:10:40" (3/3) ... [2023-09-01 06:10:40,132 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_12-fldsense_nr.i [2023-09-01 06:10:40,138 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 06:10:40,144 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 06:10:40,145 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-09-01 06:10:40,145 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 06:10:40,186 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 06:10:40,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 75 transitions, 155 flow [2023-09-01 06:10:40,266 INFO L130 PetriNetUnfolder]: 0/74 cut-off events. [2023-09-01 06:10:40,267 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:10:40,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 74 events. 0/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-09-01 06:10:40,269 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 75 transitions, 155 flow [2023-09-01 06:10:40,274 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 74 transitions, 151 flow [2023-09-01 06:10:40,277 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 06:10:40,284 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 74 transitions, 151 flow [2023-09-01 06:10:40,286 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 74 transitions, 151 flow [2023-09-01 06:10:40,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 74 transitions, 151 flow [2023-09-01 06:10:40,299 INFO L130 PetriNetUnfolder]: 0/74 cut-off events. [2023-09-01 06:10:40,300 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:10:40,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 74 events. 0/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-09-01 06:10:40,301 INFO L119 LiptonReduction]: Number of co-enabled transitions 930 [2023-09-01 06:10:41,865 INFO L134 LiptonReduction]: Checked pairs total: 2073 [2023-09-01 06:10:41,866 INFO L136 LiptonReduction]: Total number of compositions: 66 [2023-09-01 06:10:41,884 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 06:10:41,907 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;@3025868, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 06:10:41,907 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-09-01 06:10:41,910 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-09-01 06:10:41,910 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:10:41,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:10:41,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 06:10:41,912 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:10:41,917 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:10:41,917 INFO L85 PathProgramCache]: Analyzing trace with hash 8000294, now seen corresponding path program 1 times [2023-09-01 06:10:41,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:10:41,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298207685] [2023-09-01 06:10:41,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:10:41,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:10:42,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:10:42,335 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 06:10:42,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:10:42,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298207685] [2023-09-01 06:10:42,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298207685] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:10:42,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:10:42,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:10:42,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670355530] [2023-09-01 06:10:42,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:10:42,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:10:42,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:10:42,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:10:42,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:10:42,414 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 141 [2023-09-01 06:10:42,416 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 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 06:10:42,416 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:10:42,416 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 141 [2023-09-01 06:10:42,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:10:42,467 INFO L130 PetriNetUnfolder]: 50/124 cut-off events. [2023-09-01 06:10:42,468 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:10:42,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 124 events. 50/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 428 event pairs, 25 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 239. Up to 106 conditions per place. [2023-09-01 06:10:42,471 INFO L137 encePairwiseOnDemand]: 134/141 looper letters, 22 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2023-09-01 06:10:42,471 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 26 transitions, 105 flow [2023-09-01 06:10:42,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:10:42,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:10:42,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 236 transitions. [2023-09-01 06:10:42,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.557919621749409 [2023-09-01 06:10:42,485 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 236 transitions. [2023-09-01 06:10:42,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 236 transitions. [2023-09-01 06:10:42,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:10:42,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 236 transitions. [2023-09-01 06:10:42,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 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 06:10:42,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 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 06:10:42,501 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 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 06:10:42,502 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 3 states and 236 transitions. [2023-09-01 06:10:42,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 26 transitions, 105 flow [2023-09-01 06:10:42,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 26 transitions, 104 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:10:42,505 INFO L231 Difference]: Finished difference. Result has 26 places, 22 transitions, 67 flow [2023-09-01 06:10:42,507 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=26, PETRI_TRANSITIONS=22} [2023-09-01 06:10:42,509 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 2 predicate places. [2023-09-01 06:10:42,509 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 22 transitions, 67 flow [2023-09-01 06:10:42,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 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 06:10:42,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:10:42,510 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:10:42,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 06:10:42,510 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:10:42,510 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:10:42,511 INFO L85 PathProgramCache]: Analyzing trace with hash 2113785226, now seen corresponding path program 1 times [2023-09-01 06:10:42,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:10:42,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677509763] [2023-09-01 06:10:42,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:10:42,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:10:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:10:42,624 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 06:10:42,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:10:42,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677509763] [2023-09-01 06:10:42,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677509763] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:10:42,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:10:42,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:10:42,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948581957] [2023-09-01 06:10:42,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:10:42,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:10:42,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:10:42,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:10:42,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:10:42,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 141 [2023-09-01 06:10:42,663 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 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 06:10:42,664 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:10:42,664 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 141 [2023-09-01 06:10:42,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:10:42,716 INFO L130 PetriNetUnfolder]: 31/89 cut-off events. [2023-09-01 06:10:42,716 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:10:42,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 89 events. 31/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 365 event pairs, 0 based on Foata normal form. 6/74 useless extension candidates. Maximal degree in co-relation 197. Up to 66 conditions per place. [2023-09-01 06:10:42,717 INFO L137 encePairwiseOnDemand]: 137/141 looper letters, 22 selfloop transitions, 4 changer transitions 0/27 dead transitions. [2023-09-01 06:10:42,718 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 27 transitions, 129 flow [2023-09-01 06:10:42,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:10:42,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:10:42,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 230 transitions. [2023-09-01 06:10:42,719 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5437352245862884 [2023-09-01 06:10:42,719 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 230 transitions. [2023-09-01 06:10:42,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 230 transitions. [2023-09-01 06:10:42,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:10:42,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 230 transitions. [2023-09-01 06:10:42,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:10:42,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 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 06:10:42,722 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 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 06:10:42,722 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 67 flow. Second operand 3 states and 230 transitions. [2023-09-01 06:10:42,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 27 transitions, 129 flow [2023-09-01 06:10:42,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 27 transitions, 126 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:10:42,723 INFO L231 Difference]: Finished difference. Result has 27 places, 22 transitions, 72 flow [2023-09-01 06:10:42,723 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=27, PETRI_TRANSITIONS=22} [2023-09-01 06:10:42,724 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 3 predicate places. [2023-09-01 06:10:42,724 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 22 transitions, 72 flow [2023-09-01 06:10:42,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 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 06:10:42,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:10:42,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:10:42,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 06:10:42,724 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:10:42,725 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:10:42,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1085800741, now seen corresponding path program 1 times [2023-09-01 06:10:42,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:10:42,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78286173] [2023-09-01 06:10:42,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:10:42,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:10:42,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:10:42,875 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 06:10:42,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:10:42,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78286173] [2023-09-01 06:10:42,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78286173] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:10:42,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:10:42,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:10:42,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760895308] [2023-09-01 06:10:42,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:10:42,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:10:42,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:10:42,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:10:42,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:10:42,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 141 [2023-09-01 06:10:42,941 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 22 transitions, 72 flow. Second operand has 5 states, 5 states have (on average 68.6) internal successors, (343), 5 states have internal predecessors, (343), 0 states have call successors, (0), 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 06:10:42,941 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:10:42,941 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 141 [2023-09-01 06:10:42,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:10:43,000 INFO L130 PetriNetUnfolder]: 31/88 cut-off events. [2023-09-01 06:10:43,000 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2023-09-01 06:10:43,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 88 events. 31/88 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 322 event pairs, 20 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 210. Up to 65 conditions per place. [2023-09-01 06:10:43,001 INFO L137 encePairwiseOnDemand]: 134/141 looper letters, 23 selfloop transitions, 7 changer transitions 0/31 dead transitions. [2023-09-01 06:10:43,001 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 31 transitions, 154 flow [2023-09-01 06:10:43,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 06:10:43,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 06:10:43,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 433 transitions. [2023-09-01 06:10:43,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5118203309692672 [2023-09-01 06:10:43,004 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 433 transitions. [2023-09-01 06:10:43,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 433 transitions. [2023-09-01 06:10:43,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:10:43,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 433 transitions. [2023-09-01 06:10:43,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 0 states have call successors, (0), 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 06:10:43,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 141.0) internal successors, (987), 7 states have internal predecessors, (987), 0 states have call successors, (0), 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 06:10:43,007 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 141.0) internal successors, (987), 7 states have internal predecessors, (987), 0 states have call successors, (0), 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 06:10:43,007 INFO L175 Difference]: Start difference. First operand has 27 places, 22 transitions, 72 flow. Second operand 6 states and 433 transitions. [2023-09-01 06:10:43,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 31 transitions, 154 flow [2023-09-01 06:10:43,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 31 transitions, 147 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:10:43,008 INFO L231 Difference]: Finished difference. Result has 32 places, 23 transitions, 92 flow [2023-09-01 06:10:43,009 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=92, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2023-09-01 06:10:43,009 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 8 predicate places. [2023-09-01 06:10:43,009 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 92 flow [2023-09-01 06:10:43,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.6) internal successors, (343), 5 states have internal predecessors, (343), 0 states have call successors, (0), 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 06:10:43,009 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:10:43,010 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:10:43,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 06:10:43,010 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:10:43,010 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:10:43,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1085800720, now seen corresponding path program 1 times [2023-09-01 06:10:43,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:10:43,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056590301] [2023-09-01 06:10:43,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:10:43,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:10:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:10:43,062 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 06:10:43,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:10:43,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056590301] [2023-09-01 06:10:43,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056590301] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:10:43,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:10:43,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 06:10:43,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775397002] [2023-09-01 06:10:43,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:10:43,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:10:43,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:10:43,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:10:43,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:10:43,100 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 141 [2023-09-01 06:10:43,101 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 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 06:10:43,101 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:10:43,101 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 141 [2023-09-01 06:10:43,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:10:43,134 INFO L130 PetriNetUnfolder]: 30/92 cut-off events. [2023-09-01 06:10:43,134 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2023-09-01 06:10:43,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 92 events. 30/92 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 371 event pairs, 15 based on Foata normal form. 1/76 useless extension candidates. Maximal degree in co-relation 234. Up to 48 conditions per place. [2023-09-01 06:10:43,135 INFO L137 encePairwiseOnDemand]: 136/141 looper letters, 22 selfloop transitions, 5 changer transitions 0/28 dead transitions. [2023-09-01 06:10:43,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 28 transitions, 155 flow [2023-09-01 06:10:43,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:10:43,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:10:43,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 233 transitions. [2023-09-01 06:10:43,138 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5508274231678487 [2023-09-01 06:10:43,138 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 233 transitions. [2023-09-01 06:10:43,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 233 transitions. [2023-09-01 06:10:43,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:10:43,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 233 transitions. [2023-09-01 06:10:43,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 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 06:10:43,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 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 06:10:43,140 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 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 06:10:43,140 INFO L175 Difference]: Start difference. First operand has 32 places, 23 transitions, 92 flow. Second operand 3 states and 233 transitions. [2023-09-01 06:10:43,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 28 transitions, 155 flow [2023-09-01 06:10:43,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 28 transitions, 150 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-09-01 06:10:43,141 INFO L231 Difference]: Finished difference. Result has 32 places, 22 transitions, 93 flow [2023-09-01 06:10:43,141 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2023-09-01 06:10:43,142 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 8 predicate places. [2023-09-01 06:10:43,142 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 93 flow [2023-09-01 06:10:43,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 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 06:10:43,142 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:10:43,142 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:10:43,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 06:10:43,143 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:10:43,143 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:10:43,143 INFO L85 PathProgramCache]: Analyzing trace with hash -2059854081, now seen corresponding path program 1 times [2023-09-01 06:10:43,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:10:43,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407946859] [2023-09-01 06:10:43,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:10:43,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:10:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:10:43,251 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 06:10:43,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:10:43,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407946859] [2023-09-01 06:10:43,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407946859] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:10:43,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:10:43,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:10:43,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983514218] [2023-09-01 06:10:43,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:10:43,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:10:43,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:10:43,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:10:43,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:10:43,293 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 141 [2023-09-01 06:10:43,294 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 93 flow. Second operand has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 0 states have call successors, (0), 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 06:10:43,294 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:10:43,294 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 141 [2023-09-01 06:10:43,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:10:43,344 INFO L130 PetriNetUnfolder]: 25/81 cut-off events. [2023-09-01 06:10:43,344 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2023-09-01 06:10:43,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 81 events. 25/81 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 308 event pairs, 15 based on Foata normal form. 6/72 useless extension candidates. Maximal degree in co-relation 213. Up to 39 conditions per place. [2023-09-01 06:10:43,345 INFO L137 encePairwiseOnDemand]: 135/141 looper letters, 20 selfloop transitions, 6 changer transitions 3/30 dead transitions. [2023-09-01 06:10:43,345 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 30 transitions, 166 flow [2023-09-01 06:10:43,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 06:10:43,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 06:10:43,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 413 transitions. [2023-09-01 06:10:43,346 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48817966903073284 [2023-09-01 06:10:43,346 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 413 transitions. [2023-09-01 06:10:43,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 413 transitions. [2023-09-01 06:10:43,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:10:43,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 413 transitions. [2023-09-01 06:10:43,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.83333333333333) internal successors, (413), 6 states have internal predecessors, (413), 0 states have call successors, (0), 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 06:10:43,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 141.0) internal successors, (987), 7 states have internal predecessors, (987), 0 states have call successors, (0), 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 06:10:43,349 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 141.0) internal successors, (987), 7 states have internal predecessors, (987), 0 states have call successors, (0), 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 06:10:43,349 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 93 flow. Second operand 6 states and 413 transitions. [2023-09-01 06:10:43,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 30 transitions, 166 flow [2023-09-01 06:10:43,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 162 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:10:43,351 INFO L231 Difference]: Finished difference. Result has 37 places, 23 transitions, 109 flow [2023-09-01 06:10:43,351 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=109, PETRI_PLACES=37, PETRI_TRANSITIONS=23} [2023-09-01 06:10:43,351 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 13 predicate places. [2023-09-01 06:10:43,351 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 23 transitions, 109 flow [2023-09-01 06:10:43,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 0 states have call successors, (0), 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 06:10:43,352 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:10:43,352 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:10:43,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 06:10:43,352 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:10:43,352 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:10:43,352 INFO L85 PathProgramCache]: Analyzing trace with hash -2059854088, now seen corresponding path program 1 times [2023-09-01 06:10:43,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:10:43,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320621186] [2023-09-01 06:10:43,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:10:43,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:10:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:10:43,407 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 06:10:43,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:10:43,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320621186] [2023-09-01 06:10:43,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320621186] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:10:43,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:10:43,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:10:43,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660513468] [2023-09-01 06:10:43,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:10:43,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 06:10:43,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:10:43,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 06:10:43,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 06:10:43,454 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 141 [2023-09-01 06:10:43,455 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 23 transitions, 109 flow. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 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 06:10:43,455 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:10:43,455 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 141 [2023-09-01 06:10:43,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:10:43,499 INFO L130 PetriNetUnfolder]: 20/70 cut-off events. [2023-09-01 06:10:43,499 INFO L131 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2023-09-01 06:10:43,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 70 events. 20/70 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 233 event pairs, 20 based on Foata normal form. 6/63 useless extension candidates. Maximal degree in co-relation 188. Up to 64 conditions per place. [2023-09-01 06:10:43,501 INFO L137 encePairwiseOnDemand]: 137/141 looper letters, 13 selfloop transitions, 5 changer transitions 3/22 dead transitions. [2023-09-01 06:10:43,501 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 22 transitions, 145 flow [2023-09-01 06:10:43,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 06:10:43,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 06:10:43,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 268 transitions. [2023-09-01 06:10:43,502 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.475177304964539 [2023-09-01 06:10:43,503 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 268 transitions. [2023-09-01 06:10:43,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 268 transitions. [2023-09-01 06:10:43,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:10:43,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 268 transitions. [2023-09-01 06:10:43,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 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 06:10:43,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 0 states have call successors, (0), 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 06:10:43,505 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 0 states have call successors, (0), 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 06:10:43,505 INFO L175 Difference]: Start difference. First operand has 37 places, 23 transitions, 109 flow. Second operand 4 states and 268 transitions. [2023-09-01 06:10:43,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 22 transitions, 145 flow [2023-09-01 06:10:43,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 22 transitions, 130 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-09-01 06:10:43,507 INFO L231 Difference]: Finished difference. Result has 35 places, 19 transitions, 92 flow [2023-09-01 06:10:43,507 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=92, PETRI_PLACES=35, PETRI_TRANSITIONS=19} [2023-09-01 06:10:43,509 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 11 predicate places. [2023-09-01 06:10:43,509 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 19 transitions, 92 flow [2023-09-01 06:10:43,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 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 06:10:43,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:10:43,510 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:10:43,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 06:10:43,512 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:10:43,512 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:10:43,512 INFO L85 PathProgramCache]: Analyzing trace with hash -2059855301, now seen corresponding path program 1 times [2023-09-01 06:10:43,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:10:43,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763488028] [2023-09-01 06:10:43,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:10:43,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:10:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:10:43,589 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 06:10:43,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:10:43,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763488028] [2023-09-01 06:10:43,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763488028] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:10:43,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:10:43,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:10:43,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329529136] [2023-09-01 06:10:43,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:10:43,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:10:43,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:10:43,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:10:43,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:10:43,613 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 141 [2023-09-01 06:10:43,613 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 19 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 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 06:10:43,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:10:43,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 141 [2023-09-01 06:10:43,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:10:43,624 INFO L130 PetriNetUnfolder]: 1/20 cut-off events. [2023-09-01 06:10:43,625 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-09-01 06:10:43,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 20 events. 1/20 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 4/24 useless extension candidates. Maximal degree in co-relation 58. Up to 18 conditions per place. [2023-09-01 06:10:43,625 INFO L137 encePairwiseOnDemand]: 138/141 looper letters, 0 selfloop transitions, 0 changer transitions 17/17 dead transitions. [2023-09-01 06:10:43,625 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 17 transitions, 120 flow [2023-09-01 06:10:43,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:10:43,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:10:43,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 222 transitions. [2023-09-01 06:10:43,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.524822695035461 [2023-09-01 06:10:43,626 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 222 transitions. [2023-09-01 06:10:43,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 222 transitions. [2023-09-01 06:10:43,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:10:43,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 222 transitions. [2023-09-01 06:10:43,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 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 06:10:43,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 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 06:10:43,628 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 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 06:10:43,628 INFO L175 Difference]: Start difference. First operand has 35 places, 19 transitions, 92 flow. Second operand 3 states and 222 transitions. [2023-09-01 06:10:43,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 17 transitions, 120 flow [2023-09-01 06:10:43,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 17 transitions, 110 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 06:10:43,631 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2023-09-01 06:10:43,631 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2023-09-01 06:10:43,631 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 5 predicate places. [2023-09-01 06:10:43,631 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2023-09-01 06:10:43,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 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 06:10:43,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2023-09-01 06:10:43,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2023-09-01 06:10:43,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2023-09-01 06:10:43,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2023-09-01 06:10:43,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-09-01 06:10:43,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2023-09-01 06:10:43,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2023-09-01 06:10:43,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2023-09-01 06:10:43,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2023-09-01 06:10:43,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 06:10:43,638 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:10:43,642 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 06:10:43,642 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 06:10:43,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 06:10:43 BasicIcfg [2023-09-01 06:10:43,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 06:10:43,651 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 06:10:43,651 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 06:10:43,651 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 06:10:43,651 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:10:40" (3/4) ... [2023-09-01 06:10:43,653 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 06:10:43,657 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-09-01 06:10:43,661 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-09-01 06:10:43,661 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-09-01 06:10:43,661 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 06:10:43,687 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 06:10:43,687 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 06:10:43,688 INFO L158 Benchmark]: Toolchain (without parser) took 4456.25ms. Allocated memory was 73.4MB in the beginning and 138.4MB in the end (delta: 65.0MB). Free memory was 50.1MB in the beginning and 79.7MB in the end (delta: -29.6MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. [2023-09-01 06:10:43,688 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 73.4MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:10:43,688 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.38ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 49.9MB in the beginning and 68.7MB in the end (delta: -18.8MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2023-09-01 06:10:43,689 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.59ms. Allocated memory is still 92.3MB. Free memory was 68.7MB in the beginning and 66.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:10:43,689 INFO L158 Benchmark]: Boogie Preprocessor took 43.98ms. Allocated memory is still 92.3MB. Free memory was 66.6MB in the beginning and 65.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:10:43,689 INFO L158 Benchmark]: RCFGBuilder took 385.69ms. Allocated memory is still 92.3MB. Free memory was 65.0MB in the beginning and 52.0MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-09-01 06:10:43,689 INFO L158 Benchmark]: TraceAbstraction took 3522.29ms. Allocated memory was 92.3MB in the beginning and 138.4MB in the end (delta: 46.1MB). Free memory was 51.3MB in the beginning and 82.9MB in the end (delta: -31.5MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2023-09-01 06:10:43,689 INFO L158 Benchmark]: Witness Printer took 36.84ms. Allocated memory is still 138.4MB. Free memory was 82.9MB in the beginning and 79.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:10:43,691 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 73.4MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.38ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 49.9MB in the beginning and 68.7MB in the end (delta: -18.8MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.59ms. Allocated memory is still 92.3MB. Free memory was 68.7MB in the beginning and 66.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.98ms. Allocated memory is still 92.3MB. Free memory was 66.6MB in the beginning and 65.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 385.69ms. Allocated memory is still 92.3MB. Free memory was 65.0MB in the beginning and 52.0MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3522.29ms. Allocated memory was 92.3MB in the beginning and 138.4MB in the end (delta: 46.1MB). Free memory was 51.3MB in the beginning and 82.9MB in the end (delta: -31.5MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * Witness Printer took 36.84ms. Allocated memory is still 138.4MB. Free memory was 82.9MB in the beginning and 79.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 78 PlacesBefore, 24 PlacesAfterwards, 74 TransitionsBefore, 20 TransitionsAfterwards, 930 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 66 TotalNumberOfCompositions, 2073 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1142, independent: 974, independent conditional: 0, independent unconditional: 974, dependent: 168, dependent conditional: 0, dependent unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 514, independent: 484, independent conditional: 0, independent unconditional: 484, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1142, independent: 490, independent conditional: 0, independent unconditional: 490, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 514, unknown conditional: 0, unknown unconditional: 514] , Statistics on independence cache: Total cache size (in pairs): 57, Positive cache size: 40, Positive conditional cache size: 0, Positive unconditional cache size: 40, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 93 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 518 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 255 mSDsluCounter, 95 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 675 IncrementalHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 64 mSDtfsCounter, 675 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 252 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 06:10:43,725 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