./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.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/13-privatized_01-priv_nr_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f12d466eb2f537fd698a609dad75de92993414755aa8aadb35a91de87d65611 --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 06:15:26,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 06:15:26,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 06:15:26,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 06:15:26,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 06:15:26,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 06:15:26,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 06:15:26,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 06:15:26,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 06:15:26,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 06:15:26,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 06:15:26,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 06:15:26,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 06:15:26,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 06:15:26,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 06:15:26,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 06:15:26,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 06:15:26,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 06:15:26,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 06:15:26,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 06:15:26,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 06:15:26,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 06:15:26,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 06:15:26,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 06:15:26,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 06:15:26,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 06:15:26,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 06:15:26,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 06:15:26,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 06:15:26,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 06:15:26,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 06:15:26,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 06:15:26,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 06:15:26,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 06:15:26,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 06:15:26,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 06:15:26,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 06:15:26,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 06:15:26,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 06:15:26,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 06:15:26,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 06:15:26,906 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 06:15:26,941 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 06:15:26,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 06:15:26,942 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 06:15:26,942 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 06:15:26,943 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 06:15:26,943 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 06:15:26,944 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 06:15:26,944 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 06:15:26,944 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 06:15:26,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 06:15:26,945 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 06:15:26,945 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 06:15:26,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 06:15:26,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 06:15:26,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 06:15:26,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 06:15:26,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 06:15:26,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 06:15:26,947 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 06:15:26,947 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 06:15:26,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 06:15:26,947 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 06:15:26,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 06:15:26,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 06:15:26,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 06:15:26,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 06:15:26,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:15:26,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 06:15:26,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 06:15:26,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 06:15:26,949 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 06:15:26,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 06:15:26,950 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 06:15:26,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 06:15:26,950 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 06:15:26,950 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 06:15:26,950 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 06:15:26,950 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f12d466eb2f537fd698a609dad75de92993414755aa8aadb35a91de87d65611 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 06:15:27,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 06:15:27,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 06:15:27,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 06:15:27,298 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 06:15:27,298 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 06:15:27,300 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2023-09-01 06:15:28,504 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 06:15:28,766 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 06:15:28,769 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2023-09-01 06:15:28,780 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f52efd1af/d32c64cb70184bf182d657a6dce6ee88/FLAGc4f30d18d [2023-09-01 06:15:28,795 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f52efd1af/d32c64cb70184bf182d657a6dce6ee88 [2023-09-01 06:15:28,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 06:15:28,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 06:15:28,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 06:15:28,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 06:15:28,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 06:15:28,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:15:28" (1/1) ... [2023-09-01 06:15:28,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f40e60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:15:28, skipping insertion in model container [2023-09-01 06:15:28,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:15:28" (1/1) ... [2023-09-01 06:15:28,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 06:15:28,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 06:15:28,973 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2023-09-01 06:15:29,144 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:15:29,159 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 06:15:29,173 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2023-09-01 06:15:29,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:15:29,283 INFO L208 MainTranslator]: Completed translation [2023-09-01 06:15:29,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:15:29 WrapperNode [2023-09-01 06:15:29,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 06:15:29,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 06:15:29,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 06:15:29,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 06:15:29,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:15:29" (1/1) ... [2023-09-01 06:15:29,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:15:29" (1/1) ... [2023-09-01 06:15:29,322 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 88 [2023-09-01 06:15:29,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 06:15:29,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 06:15:29,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 06:15:29,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 06:15:29,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:15:29" (1/1) ... [2023-09-01 06:15:29,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:15:29" (1/1) ... [2023-09-01 06:15:29,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:15:29" (1/1) ... [2023-09-01 06:15:29,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:15:29" (1/1) ... [2023-09-01 06:15:29,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:15:29" (1/1) ... [2023-09-01 06:15:29,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:15:29" (1/1) ... [2023-09-01 06:15:29,363 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:15:29" (1/1) ... [2023-09-01 06:15:29,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:15:29" (1/1) ... [2023-09-01 06:15:29,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 06:15:29,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 06:15:29,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 06:15:29,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 06:15:29,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:15:29" (1/1) ... [2023-09-01 06:15:29,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:15:29,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:15:29,410 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 06:15:29,429 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 06:15:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 06:15:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 06:15:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 06:15:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 06:15:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 06:15:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 06:15:29,456 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 06:15:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 06:15:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 06:15:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 06:15:29,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 06:15:29,457 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 06:15:29,627 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 06:15:29,629 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 06:15:29,774 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 06:15:29,780 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 06:15:29,781 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 06:15:29,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:15:29 BoogieIcfgContainer [2023-09-01 06:15:29,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 06:15:29,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 06:15:29,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 06:15:29,787 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 06:15:29,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 06:15:28" (1/3) ... [2023-09-01 06:15:29,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20191a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:15:29, skipping insertion in model container [2023-09-01 06:15:29,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:15:29" (2/3) ... [2023-09-01 06:15:29,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20191a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:15:29, skipping insertion in model container [2023-09-01 06:15:29,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:15:29" (3/3) ... [2023-09-01 06:15:29,790 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_01-priv_nr_true.i [2023-09-01 06:15:29,796 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 06:15:29,808 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 06:15:29,808 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-09-01 06:15:29,808 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 06:15:29,852 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 06:15:29,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 97 transitions, 202 flow [2023-09-01 06:15:29,918 INFO L130 PetriNetUnfolder]: 4/96 cut-off events. [2023-09-01 06:15:29,919 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 06:15:29,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 96 events. 4/96 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2023-09-01 06:15:29,924 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 97 transitions, 202 flow [2023-09-01 06:15:29,928 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 89 transitions, 181 flow [2023-09-01 06:15:29,931 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 06:15:29,940 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 89 transitions, 181 flow [2023-09-01 06:15:29,943 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 89 transitions, 181 flow [2023-09-01 06:15:29,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 89 transitions, 181 flow [2023-09-01 06:15:29,965 INFO L130 PetriNetUnfolder]: 4/89 cut-off events. [2023-09-01 06:15:29,965 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:15:29,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 89 events. 4/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2023-09-01 06:15:29,967 INFO L119 LiptonReduction]: Number of co-enabled transitions 1296 [2023-09-01 06:15:32,294 INFO L134 LiptonReduction]: Checked pairs total: 2289 [2023-09-01 06:15:32,294 INFO L136 LiptonReduction]: Total number of compositions: 84 [2023-09-01 06:15:32,308 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 06:15:32,313 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;@38e0ae70, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 06:15:32,313 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-09-01 06:15:32,316 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-09-01 06:15:32,317 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:15:32,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:15:32,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 06:15:32,318 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-09-01 06:15:32,322 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:15:32,322 INFO L85 PathProgramCache]: Analyzing trace with hash 10815149, now seen corresponding path program 1 times [2023-09-01 06:15:32,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:15:32,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651735114] [2023-09-01 06:15:32,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:15:32,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:15:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:15:32,646 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 06:15:32,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:15:32,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651735114] [2023-09-01 06:15:32,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651735114] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:15:32,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:15:32,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:15:32,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879687236] [2023-09-01 06:15:32,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:15:32,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:15:32,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:15:32,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:15:32,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:15:32,716 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 181 [2023-09-01 06:15:32,719 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:15:32,719 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:15:32,720 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 181 [2023-09-01 06:15:32,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:15:32,803 INFO L130 PetriNetUnfolder]: 54/132 cut-off events. [2023-09-01 06:15:32,803 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:15:32,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 132 events. 54/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 431 event pairs, 28 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 254. Up to 113 conditions per place. [2023-09-01 06:15:32,805 INFO L137 encePairwiseOnDemand]: 175/181 looper letters, 19 selfloop transitions, 3 changer transitions 2/25 dead transitions. [2023-09-01 06:15:32,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 25 transitions, 101 flow [2023-09-01 06:15:32,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:15:32,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:15:32,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 274 transitions. [2023-09-01 06:15:32,818 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5046040515653776 [2023-09-01 06:15:32,819 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 274 transitions. [2023-09-01 06:15:32,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 274 transitions. [2023-09-01 06:15:32,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:15:32,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 274 transitions. [2023-09-01 06:15:32,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 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 06:15:32,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 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 06:15:32,831 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 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 06:15:32,833 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 43 flow. Second operand 3 states and 274 transitions. [2023-09-01 06:15:32,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 25 transitions, 101 flow [2023-09-01 06:15:32,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 25 transitions, 100 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:15:32,838 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 57 flow [2023-09-01 06:15:32,839 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2023-09-01 06:15:32,842 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 2 predicate places. [2023-09-01 06:15:32,842 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 57 flow [2023-09-01 06:15:32,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:15:32,843 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:15:32,843 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:15:32,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 06:15:32,844 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-09-01 06:15:32,844 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:15:32,845 INFO L85 PathProgramCache]: Analyzing trace with hash 66270656, now seen corresponding path program 1 times [2023-09-01 06:15:32,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:15:32,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093463074] [2023-09-01 06:15:32,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:15:32,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:15:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:15:32,918 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 06:15:32,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:15:32,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093463074] [2023-09-01 06:15:32,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093463074] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:15:32,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:15:32,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:15:32,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353888121] [2023-09-01 06:15:32,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:15:32,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:15:32,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:15:32,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:15:32,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:15:32,937 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 181 [2023-09-01 06:15:32,938 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:15:32,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:15:32,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 181 [2023-09-01 06:15:32,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:15:32,961 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2023-09-01 06:15:32,961 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:15:32,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 24 events. 0/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 11/34 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2023-09-01 06:15:32,962 INFO L137 encePairwiseOnDemand]: 178/181 looper letters, 14 selfloop transitions, 3 changer transitions 0/18 dead transitions. [2023-09-01 06:15:32,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 18 transitions, 87 flow [2023-09-01 06:15:32,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:15:32,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:15:32,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2023-09-01 06:15:32,965 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4861878453038674 [2023-09-01 06:15:32,965 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 264 transitions. [2023-09-01 06:15:32,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 264 transitions. [2023-09-01 06:15:32,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:15:32,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 264 transitions. [2023-09-01 06:15:32,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 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 06:15:32,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 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 06:15:32,978 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 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 06:15:32,978 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 57 flow. Second operand 3 states and 264 transitions. [2023-09-01 06:15:32,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 18 transitions, 87 flow [2023-09-01 06:15:32,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 18 transitions, 84 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:15:32,979 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 56 flow [2023-09-01 06:15:32,979 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=24, PETRI_TRANSITIONS=18} [2023-09-01 06:15:32,980 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 1 predicate places. [2023-09-01 06:15:32,980 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 56 flow [2023-09-01 06:15:32,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:15:32,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:15:32,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:15:32,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 06:15:32,981 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-09-01 06:15:32,982 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:15:32,982 INFO L85 PathProgramCache]: Analyzing trace with hash -2113082063, now seen corresponding path program 1 times [2023-09-01 06:15:32,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:15:32,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339905385] [2023-09-01 06:15:32,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:15:32,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:15:32,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:15:33,071 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 06:15:33,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:15:33,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339905385] [2023-09-01 06:15:33,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339905385] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:15:33,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:15:33,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 06:15:33,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955921882] [2023-09-01 06:15:33,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:15:33,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 06:15:33,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:15:33,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 06:15:33,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-09-01 06:15:33,142 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 181 [2023-09-01 06:15:33,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 56 flow. Second operand has 6 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 0 states have call successors, (0), 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 06:15:33,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:15:33,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 181 [2023-09-01 06:15:33,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:15:33,213 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2023-09-01 06:15:33,213 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:15:33,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 23 events. 0/23 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2023-09-01 06:15:33,215 INFO L137 encePairwiseOnDemand]: 172/181 looper letters, 15 selfloop transitions, 8 changer transitions 0/23 dead transitions. [2023-09-01 06:15:33,215 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 23 transitions, 114 flow [2023-09-01 06:15:33,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 06:15:33,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 06:15:33,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 608 transitions. [2023-09-01 06:15:33,219 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4198895027624309 [2023-09-01 06:15:33,219 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 608 transitions. [2023-09-01 06:15:33,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 608 transitions. [2023-09-01 06:15:33,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:15:33,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 608 transitions. [2023-09-01 06:15:33,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 76.0) internal successors, (608), 8 states have internal predecessors, (608), 0 states have call successors, (0), 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 06:15:33,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 181.0) internal successors, (1629), 9 states have internal predecessors, (1629), 0 states have call successors, (0), 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 06:15:33,227 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 181.0) internal successors, (1629), 9 states have internal predecessors, (1629), 0 states have call successors, (0), 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 06:15:33,228 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 56 flow. Second operand 8 states and 608 transitions. [2023-09-01 06:15:33,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 23 transitions, 114 flow [2023-09-01 06:15:33,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 23 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:15:33,229 INFO L231 Difference]: Finished difference. Result has 35 places, 22 transitions, 100 flow [2023-09-01 06:15:33,229 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=100, PETRI_PLACES=35, PETRI_TRANSITIONS=22} [2023-09-01 06:15:33,231 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 12 predicate places. [2023-09-01 06:15:33,231 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 22 transitions, 100 flow [2023-09-01 06:15:33,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 0 states have call successors, (0), 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 06:15:33,231 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:15:33,232 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:15:33,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 06:15:33,232 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-09-01 06:15:33,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:15:33,233 INFO L85 PathProgramCache]: Analyzing trace with hash -2113081948, now seen corresponding path program 1 times [2023-09-01 06:15:33,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:15:33,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405474775] [2023-09-01 06:15:33,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:15:33,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:15:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:15:33,318 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 06:15:33,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:15:33,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405474775] [2023-09-01 06:15:33,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405474775] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:15:33,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:15:33,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:15:33,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920446737] [2023-09-01 06:15:33,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:15:33,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 06:15:33,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:15:33,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 06:15:33,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 06:15:33,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 181 [2023-09-01 06:15:33,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 22 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 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 06:15:33,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:15:33,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 181 [2023-09-01 06:15:33,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:15:33,390 INFO L130 PetriNetUnfolder]: 0/21 cut-off events. [2023-09-01 06:15:33,390 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-09-01 06:15:33,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 21 events. 0/21 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 2/23 useless extension candidates. Maximal degree in co-relation 0. Up to 13 conditions per place. [2023-09-01 06:15:33,391 INFO L137 encePairwiseOnDemand]: 175/181 looper letters, 11 selfloop transitions, 5 changer transitions 5/21 dead transitions. [2023-09-01 06:15:33,391 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 21 transitions, 136 flow [2023-09-01 06:15:33,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 06:15:33,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 06:15:33,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 328 transitions. [2023-09-01 06:15:33,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4530386740331492 [2023-09-01 06:15:33,393 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 328 transitions. [2023-09-01 06:15:33,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 328 transitions. [2023-09-01 06:15:33,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:15:33,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 328 transitions. [2023-09-01 06:15:33,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.0) internal successors, (328), 4 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 06:15:33,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 0 states have call successors, (0), 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 06:15:33,396 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 0 states have call successors, (0), 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 06:15:33,397 INFO L175 Difference]: Start difference. First operand has 35 places, 22 transitions, 100 flow. Second operand 4 states and 328 transitions. [2023-09-01 06:15:33,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 21 transitions, 136 flow [2023-09-01 06:15:33,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 21 transitions, 130 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 06:15:33,398 INFO L231 Difference]: Finished difference. Result has 34 places, 16 transitions, 72 flow [2023-09-01 06:15:33,399 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=72, PETRI_PLACES=34, PETRI_TRANSITIONS=16} [2023-09-01 06:15:33,399 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 11 predicate places. [2023-09-01 06:15:33,399 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 16 transitions, 72 flow [2023-09-01 06:15:33,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 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 06:15:33,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:15:33,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:15:33,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 06:15:33,400 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-09-01 06:15:33,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:15:33,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1964759359, now seen corresponding path program 1 times [2023-09-01 06:15:33,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:15:33,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084657819] [2023-09-01 06:15:33,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:15:33,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:15:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:15:33,524 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 06:15:33,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:15:33,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084657819] [2023-09-01 06:15:33,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084657819] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:15:33,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:15:33,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:15:33,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023443373] [2023-09-01 06:15:33,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:15:33,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:15:33,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:15:33,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:15:33,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:15:33,549 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 181 [2023-09-01 06:15:33,550 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 16 transitions, 72 flow. Second operand has 5 states, 5 states have (on average 82.0) internal successors, (410), 5 states have internal predecessors, (410), 0 states have call successors, (0), 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 06:15:33,550 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:15:33,550 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 181 [2023-09-01 06:15:33,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:15:33,590 INFO L130 PetriNetUnfolder]: 0/16 cut-off events. [2023-09-01 06:15:33,590 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-09-01 06:15:33,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 16 events. 0/16 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/17 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2023-09-01 06:15:33,591 INFO L137 encePairwiseOnDemand]: 175/181 looper letters, 9 selfloop transitions, 5 changer transitions 1/16 dead transitions. [2023-09-01 06:15:33,591 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 16 transitions, 99 flow [2023-09-01 06:15:33,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 06:15:33,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 06:15:33,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 496 transitions. [2023-09-01 06:15:33,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4567219152854512 [2023-09-01 06:15:33,593 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 496 transitions. [2023-09-01 06:15:33,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 496 transitions. [2023-09-01 06:15:33,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:15:33,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 496 transitions. [2023-09-01 06:15:33,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 0 states have call successors, (0), 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 06:15:33,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 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 06:15:33,598 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 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 06:15:33,598 INFO L175 Difference]: Start difference. First operand has 34 places, 16 transitions, 72 flow. Second operand 6 states and 496 transitions. [2023-09-01 06:15:33,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 16 transitions, 99 flow [2023-09-01 06:15:33,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 16 transitions, 81 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-09-01 06:15:33,599 INFO L231 Difference]: Finished difference. Result has 29 places, 15 transitions, 58 flow [2023-09-01 06:15:33,599 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=58, PETRI_PLACES=29, PETRI_TRANSITIONS=15} [2023-09-01 06:15:33,600 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 6 predicate places. [2023-09-01 06:15:33,600 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 15 transitions, 58 flow [2023-09-01 06:15:33,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.0) internal successors, (410), 5 states have internal predecessors, (410), 0 states have call successors, (0), 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 06:15:33,601 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:15:33,601 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:15:33,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 06:15:33,602 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-09-01 06:15:33,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:15:33,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1964759360, now seen corresponding path program 1 times [2023-09-01 06:15:33,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:15:33,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895013156] [2023-09-01 06:15:33,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:15:33,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:15:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:15:33,674 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 06:15:33,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:15:33,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895013156] [2023-09-01 06:15:33,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895013156] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:15:33,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:15:33,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:15:33,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924349898] [2023-09-01 06:15:33,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:15:33,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:15:33,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:15:33,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:15:33,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:15:33,700 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 181 [2023-09-01 06:15:33,701 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 15 transitions, 58 flow. Second operand has 5 states, 5 states have (on average 82.0) internal successors, (410), 5 states have internal predecessors, (410), 0 states have call successors, (0), 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 06:15:33,701 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:15:33,701 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 181 [2023-09-01 06:15:33,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:15:33,736 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2023-09-01 06:15:33,736 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 06:15:33,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 15 events. 0/15 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2023-09-01 06:15:33,736 INFO L137 encePairwiseOnDemand]: 176/181 looper letters, 9 selfloop transitions, 4 changer transitions 1/15 dead transitions. [2023-09-01 06:15:33,737 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 15 transitions, 83 flow [2023-09-01 06:15:33,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 06:15:33,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 06:15:33,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 495 transitions. [2023-09-01 06:15:33,739 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4558011049723757 [2023-09-01 06:15:33,740 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 495 transitions. [2023-09-01 06:15:33,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 495 transitions. [2023-09-01 06:15:33,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:15:33,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 495 transitions. [2023-09-01 06:15:33,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.5) internal successors, (495), 6 states have internal predecessors, (495), 0 states have call successors, (0), 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 06:15:33,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 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 06:15:33,744 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 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 06:15:33,744 INFO L175 Difference]: Start difference. First operand has 29 places, 15 transitions, 58 flow. Second operand 6 states and 495 transitions. [2023-09-01 06:15:33,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 15 transitions, 83 flow [2023-09-01 06:15:33,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 15 transitions, 69 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-09-01 06:15:33,745 INFO L231 Difference]: Finished difference. Result has 25 places, 14 transitions, 46 flow [2023-09-01 06:15:33,745 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=46, PETRI_PLACES=25, PETRI_TRANSITIONS=14} [2023-09-01 06:15:33,746 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 2 predicate places. [2023-09-01 06:15:33,746 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 14 transitions, 46 flow [2023-09-01 06:15:33,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.0) internal successors, (410), 5 states have internal predecessors, (410), 0 states have call successors, (0), 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 06:15:33,747 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:15:33,747 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:15:33,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 06:15:33,748 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-09-01 06:15:33,748 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:15:33,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1731736636, now seen corresponding path program 1 times [2023-09-01 06:15:33,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:15:33,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685065953] [2023-09-01 06:15:33,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:15:33,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:15:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:15:33,831 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 06:15:33,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:15:33,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685065953] [2023-09-01 06:15:33,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685065953] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:15:33,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:15:33,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 06:15:33,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860075128] [2023-09-01 06:15:33,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:15:33,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 06:15:33,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:15:33,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 06:15:33,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-09-01 06:15:33,910 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 181 [2023-09-01 06:15:33,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 14 transitions, 46 flow. Second operand has 7 states, 7 states have (on average 73.0) internal successors, (511), 7 states have internal predecessors, (511), 0 states have call successors, (0), 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 06:15:33,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:15:33,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 181 [2023-09-01 06:15:33,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:15:33,980 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2023-09-01 06:15:33,981 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:15:33,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 14 events. 0/14 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-09-01 06:15:33,981 INFO L137 encePairwiseOnDemand]: 172/181 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2023-09-01 06:15:33,981 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 14 transitions, 75 flow [2023-09-01 06:15:33,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-01 06:15:33,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-09-01 06:15:33,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 654 transitions. [2023-09-01 06:15:33,984 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4014732965009208 [2023-09-01 06:15:33,984 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 654 transitions. [2023-09-01 06:15:33,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 654 transitions. [2023-09-01 06:15:33,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:15:33,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 654 transitions. [2023-09-01 06:15:33,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 72.66666666666667) internal successors, (654), 9 states have internal predecessors, (654), 0 states have call successors, (0), 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 06:15:33,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 181.0) internal successors, (1810), 10 states have internal predecessors, (1810), 0 states have call successors, (0), 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 06:15:33,989 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 181.0) internal successors, (1810), 10 states have internal predecessors, (1810), 0 states have call successors, (0), 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 06:15:33,989 INFO L175 Difference]: Start difference. First operand has 25 places, 14 transitions, 46 flow. Second operand 9 states and 654 transitions. [2023-09-01 06:15:33,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 14 transitions, 75 flow [2023-09-01 06:15:33,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 14 transitions, 68 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 06:15:33,990 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2023-09-01 06:15:33,990 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2023-09-01 06:15:33,991 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 5 predicate places. [2023-09-01 06:15:33,991 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2023-09-01 06:15:33,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.0) internal successors, (511), 7 states have internal predecessors, (511), 0 states have call successors, (0), 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 06:15:33,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2023-09-01 06:15:33,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2023-09-01 06:15:33,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2023-09-01 06:15:33,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2023-09-01 06:15:33,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-09-01 06:15:33,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 06:15:33,996 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:15:33,998 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 06:15:33,999 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 06:15:34,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 06:15:34 BasicIcfg [2023-09-01 06:15:34,002 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 06:15:34,002 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 06:15:34,002 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 06:15:34,002 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 06:15:34,003 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:15:29" (3/4) ... [2023-09-01 06:15:34,005 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 06:15:34,010 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-09-01 06:15:34,014 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-09-01 06:15:34,014 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-09-01 06:15:34,014 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 06:15:34,014 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 06:15:34,046 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 06:15:34,048 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 06:15:34,049 INFO L158 Benchmark]: Toolchain (without parser) took 5250.48ms. Allocated memory was 75.5MB in the beginning and 111.1MB in the end (delta: 35.7MB). Free memory was 52.4MB in the beginning and 78.8MB in the end (delta: -26.4MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2023-09-01 06:15:34,049 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:15:34,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 484.72ms. Allocated memory is still 75.5MB. Free memory was 52.2MB in the beginning and 51.8MB in the end (delta: 415.1kB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2023-09-01 06:15:34,051 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.01ms. Allocated memory is still 75.5MB. Free memory was 51.8MB in the beginning and 49.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:15:34,052 INFO L158 Benchmark]: Boogie Preprocessor took 51.46ms. Allocated memory is still 75.5MB. Free memory was 49.6MB in the beginning and 48.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:15:34,052 INFO L158 Benchmark]: RCFGBuilder took 407.46ms. Allocated memory is still 75.5MB. Free memory was 48.2MB in the beginning and 34.3MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-09-01 06:15:34,052 INFO L158 Benchmark]: TraceAbstraction took 4217.24ms. Allocated memory was 75.5MB in the beginning and 111.1MB in the end (delta: 35.7MB). Free memory was 33.5MB in the beginning and 81.8MB in the end (delta: -48.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:15:34,053 INFO L158 Benchmark]: Witness Printer took 46.20ms. Allocated memory is still 111.1MB. Free memory was 80.9MB in the beginning and 78.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:15:34,054 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 484.72ms. Allocated memory is still 75.5MB. Free memory was 52.2MB in the beginning and 51.8MB in the end (delta: 415.1kB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.01ms. Allocated memory is still 75.5MB. Free memory was 51.8MB in the beginning and 49.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.46ms. Allocated memory is still 75.5MB. Free memory was 49.6MB in the beginning and 48.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 407.46ms. Allocated memory is still 75.5MB. Free memory was 48.2MB in the beginning and 34.3MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4217.24ms. Allocated memory was 75.5MB in the beginning and 111.1MB in the end (delta: 35.7MB). Free memory was 33.5MB in the beginning and 81.8MB in the end (delta: -48.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 46.20ms. Allocated memory is still 111.1MB. Free memory was 80.9MB in the beginning and 78.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 89 PlacesBefore, 23 PlacesAfterwards, 89 TransitionsBefore, 20 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 84 TotalNumberOfCompositions, 2289 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1358, independent: 1220, independent conditional: 0, independent unconditional: 1220, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 753, independent: 717, independent conditional: 0, independent unconditional: 717, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1358, independent: 503, independent conditional: 0, independent unconditional: 503, dependent: 102, dependent conditional: 0, dependent unconditional: 102, unknown: 753, unknown conditional: 0, unknown unconditional: 753] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 700]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 700]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: 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, 118 locations, 5 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: 4.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 372 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 248 mSDsluCounter, 232 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 222 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 613 IncrementalHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 10 mSDtfsCounter, 613 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=3, InterpolantAutomatonStates: 39, 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, 0.6s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 148 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 06:15:34,069 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