./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_17-ps_add1_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_17-ps_add1_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 013bb91f520a17a9cdc0cfee70ba812e0f5d104f38897431df1c1d9fa0ad9ebb --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 06:08:21,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 06:08:21,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 06:08:21,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 06:08:21,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 06:08:21,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 06:08:21,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 06:08:21,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 06:08:21,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 06:08:21,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 06:08:21,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 06:08:21,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 06:08:21,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 06:08:21,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 06:08:21,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 06:08:21,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 06:08:21,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 06:08:21,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 06:08:21,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 06:08:21,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 06:08:21,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 06:08:21,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 06:08:21,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 06:08:21,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 06:08:21,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 06:08:21,485 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 06:08:21,485 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 06:08:21,487 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 06:08:21,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 06:08:21,488 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 06:08:21,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 06:08:21,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 06:08:21,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 06:08:21,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 06:08:21,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 06:08:21,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 06:08:21,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 06:08:21,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 06:08:21,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 06:08:21,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 06:08:21,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 06:08:21,502 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 06:08:21,540 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 06:08:21,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 06:08:21,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 06:08:21,542 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 06:08:21,543 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 06:08:21,543 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 06:08:21,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 06:08:21,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 06:08:21,544 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 06:08:21,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 06:08:21,545 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 06:08:21,545 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 06:08:21,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 06:08:21,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 06:08:21,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 06:08:21,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 06:08:21,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 06:08:21,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 06:08:21,546 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 06:08:21,546 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 06:08:21,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 06:08:21,547 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 06:08:21,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 06:08:21,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 06:08:21,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 06:08:21,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 06:08:21,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:08:21,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 06:08:21,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 06:08:21,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 06:08:21,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 06:08:21,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 06:08:21,549 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 06:08:21,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 06:08:21,549 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 06:08:21,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 06:08:21,550 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 06:08:21,550 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 013bb91f520a17a9cdc0cfee70ba812e0f5d104f38897431df1c1d9fa0ad9ebb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 06:08:21,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 06:08:21,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 06:08:21,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 06:08:21,948 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 06:08:21,949 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 06:08:21,950 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_17-ps_add1_nr.i [2023-09-01 06:08:23,101 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 06:08:23,428 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 06:08:23,429 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_17-ps_add1_nr.i [2023-09-01 06:08:23,446 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32852110c/e0181133b0254659b38bc64c2a25a82c/FLAGcfbd4745b [2023-09-01 06:08:23,459 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32852110c/e0181133b0254659b38bc64c2a25a82c [2023-09-01 06:08:23,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 06:08:23,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 06:08:23,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 06:08:23,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 06:08:23,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 06:08:23,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:08:23" (1/1) ... [2023-09-01 06:08:23,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2db81bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:23, skipping insertion in model container [2023-09-01 06:08:23,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:08:23" (1/1) ... [2023-09-01 06:08:23,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 06:08:23,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 06:08:23,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:08:23,870 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 06:08:23,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:08:23,982 INFO L208 MainTranslator]: Completed translation [2023-09-01 06:08:23,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:23 WrapperNode [2023-09-01 06:08:23,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 06:08:23,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 06:08:23,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 06:08:23,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 06:08:23,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:23" (1/1) ... [2023-09-01 06:08:24,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:23" (1/1) ... [2023-09-01 06:08:24,048 INFO L138 Inliner]: procedures = 266, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 61 [2023-09-01 06:08:24,049 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 06:08:24,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 06:08:24,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 06:08:24,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 06:08:24,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:23" (1/1) ... [2023-09-01 06:08:24,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:23" (1/1) ... [2023-09-01 06:08:24,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:23" (1/1) ... [2023-09-01 06:08:24,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:23" (1/1) ... [2023-09-01 06:08:24,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:23" (1/1) ... [2023-09-01 06:08:24,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:23" (1/1) ... [2023-09-01 06:08:24,085 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:23" (1/1) ... [2023-09-01 06:08:24,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:23" (1/1) ... [2023-09-01 06:08:24,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 06:08:24,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 06:08:24,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 06:08:24,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 06:08:24,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:23" (1/1) ... [2023-09-01 06:08:24,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:08:24,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:08:24,136 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 06:08:24,158 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 06:08:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 06:08:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 06:08:24,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 06:08:24,175 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 06:08:24,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 06:08:24,175 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 06:08:24,175 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 06:08:24,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 06:08:24,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 06:08:24,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 06:08:24,177 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 06:08:24,303 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 06:08:24,306 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 06:08:24,522 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 06:08:24,529 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 06:08:24,530 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 06:08:24,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:08:24 BoogieIcfgContainer [2023-09-01 06:08:24,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 06:08:24,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 06:08:24,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 06:08:24,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 06:08:24,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 06:08:23" (1/3) ... [2023-09-01 06:08:24,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6f3b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:08:24, skipping insertion in model container [2023-09-01 06:08:24,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:23" (2/3) ... [2023-09-01 06:08:24,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6f3b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:08:24, skipping insertion in model container [2023-09-01 06:08:24,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:08:24" (3/3) ... [2023-09-01 06:08:24,540 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_17-ps_add1_nr.i [2023-09-01 06:08:24,548 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 06:08:24,575 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 06:08:24,575 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-09-01 06:08:24,575 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 06:08:24,631 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 06:08:24,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 85 transitions, 175 flow [2023-09-01 06:08:24,700 INFO L130 PetriNetUnfolder]: 4/84 cut-off events. [2023-09-01 06:08:24,700 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:08:24,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 84 events. 4/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 104 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2023-09-01 06:08:24,705 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 85 transitions, 175 flow [2023-09-01 06:08:24,708 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 84 transitions, 171 flow [2023-09-01 06:08:24,712 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 06:08:24,721 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 84 transitions, 171 flow [2023-09-01 06:08:24,723 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 84 transitions, 171 flow [2023-09-01 06:08:24,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 84 transitions, 171 flow [2023-09-01 06:08:24,744 INFO L130 PetriNetUnfolder]: 4/84 cut-off events. [2023-09-01 06:08:24,745 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:08:24,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 84 events. 4/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 104 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2023-09-01 06:08:24,747 INFO L119 LiptonReduction]: Number of co-enabled transitions 1274 [2023-09-01 06:08:27,567 INFO L134 LiptonReduction]: Checked pairs total: 2163 [2023-09-01 06:08:27,567 INFO L136 LiptonReduction]: Total number of compositions: 102 [2023-09-01 06:08:27,591 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 06:08:27,600 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;@5477cf19, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 06:08:27,600 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-09-01 06:08:27,609 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-09-01 06:08:27,609 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:08:27,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:08:27,611 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 06:08:27,612 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:08:27,618 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:08:27,619 INFO L85 PathProgramCache]: Analyzing trace with hash 319754, now seen corresponding path program 1 times [2023-09-01 06:08:27,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:08:27,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310109578] [2023-09-01 06:08:27,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:08:27,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:08:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:08:27,802 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 06:08:27,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:08:27,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310109578] [2023-09-01 06:08:27,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310109578] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:08:27,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:08:27,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:08:27,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532718698] [2023-09-01 06:08:27,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:08:27,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-01 06:08:27,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:08:27,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-01 06:08:27,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-01 06:08:27,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 187 [2023-09-01 06:08:27,849 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 22 transitions, 47 flow. Second operand has 2 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 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 06:08:27,849 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:08:27,849 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 187 [2023-09-01 06:08:27,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:08:27,945 INFO L130 PetriNetUnfolder]: 80/165 cut-off events. [2023-09-01 06:08:27,945 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:08:27,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 165 events. 80/165 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 653 event pairs, 66 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 326. Up to 166 conditions per place. [2023-09-01 06:08:27,949 INFO L137 encePairwiseOnDemand]: 186/187 looper letters, 21 selfloop transitions, 0 changer transitions 0/21 dead transitions. [2023-09-01 06:08:27,950 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 21 transitions, 87 flow [2023-09-01 06:08:27,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-01 06:08:27,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-09-01 06:08:27,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 190 transitions. [2023-09-01 06:08:27,963 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5080213903743316 [2023-09-01 06:08:27,964 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 190 transitions. [2023-09-01 06:08:27,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 190 transitions. [2023-09-01 06:08:27,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:08:27,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 190 transitions. [2023-09-01 06:08:27,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 95.0) internal successors, (190), 2 states have internal predecessors, (190), 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 06:08:27,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 187.0) internal successors, (561), 3 states have internal predecessors, (561), 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 06:08:27,974 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 187.0) internal successors, (561), 3 states have internal predecessors, (561), 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 06:08:27,976 INFO L175 Difference]: Start difference. First operand has 24 places, 22 transitions, 47 flow. Second operand 2 states and 190 transitions. [2023-09-01 06:08:27,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 21 transitions, 87 flow [2023-09-01 06:08:27,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 21 transitions, 86 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:08:27,980 INFO L231 Difference]: Finished difference. Result has 23 places, 21 transitions, 44 flow [2023-09-01 06:08:27,982 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=23, PETRI_TRANSITIONS=21} [2023-09-01 06:08:27,986 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -1 predicate places. [2023-09-01 06:08:27,986 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 21 transitions, 44 flow [2023-09-01 06:08:27,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 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 06:08:27,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:08:27,987 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 06:08:27,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 06:08:27,988 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:08:27,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:08:27,988 INFO L85 PathProgramCache]: Analyzing trace with hash 319751, now seen corresponding path program 1 times [2023-09-01 06:08:27,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:08:27,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575630157] [2023-09-01 06:08:27,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:08:27,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:08:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:08:28,078 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 06:08:28,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:08:28,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575630157] [2023-09-01 06:08:28,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575630157] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:08:28,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:08:28,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:08:28,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624078960] [2023-09-01 06:08:28,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:08:28,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:08:28,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:08:28,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:08:28,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:08:28,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 187 [2023-09-01 06:08:28,114 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 21 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 06:08:28,114 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:08:28,114 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 187 [2023-09-01 06:08:28,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:08:28,157 INFO L130 PetriNetUnfolder]: 68/139 cut-off events. [2023-09-01 06:08:28,157 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:08:28,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 139 events. 68/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 498 event pairs, 54 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 280. Up to 139 conditions per place. [2023-09-01 06:08:28,159 INFO L137 encePairwiseOnDemand]: 184/187 looper letters, 18 selfloop transitions, 1 changer transitions 0/19 dead transitions. [2023-09-01 06:08:28,159 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 19 transitions, 78 flow [2023-09-01 06:08:28,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:08:28,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:08:28,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 243 transitions. [2023-09-01 06:08:28,161 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43315508021390375 [2023-09-01 06:08:28,162 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 243 transitions. [2023-09-01 06:08:28,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 243 transitions. [2023-09-01 06:08:28,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:08:28,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 243 transitions. [2023-09-01 06:08:28,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 06:08:28,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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 06:08:28,166 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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 06:08:28,166 INFO L175 Difference]: Start difference. First operand has 23 places, 21 transitions, 44 flow. Second operand 3 states and 243 transitions. [2023-09-01 06:08:28,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 19 transitions, 78 flow [2023-09-01 06:08:28,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 78 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-09-01 06:08:28,167 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 42 flow [2023-09-01 06:08:28,167 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=23, PETRI_TRANSITIONS=19} [2023-09-01 06:08:28,168 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -1 predicate places. [2023-09-01 06:08:28,168 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 42 flow [2023-09-01 06:08:28,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 06:08:28,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:08:28,169 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 06:08:28,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 06:08:28,170 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:08:28,170 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:08:28,170 INFO L85 PathProgramCache]: Analyzing trace with hash 319753, now seen corresponding path program 1 times [2023-09-01 06:08:28,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:08:28,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774965965] [2023-09-01 06:08:28,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:08:28,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:08:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:08:28,228 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 06:08:28,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:08:28,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774965965] [2023-09-01 06:08:28,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774965965] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:08:28,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:08:28,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:08:28,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411699581] [2023-09-01 06:08:28,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:08:28,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:08:28,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:08:28,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:08:28,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:08:28,252 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 187 [2023-09-01 06:08:28,253 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 06:08:28,253 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:08:28,253 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 187 [2023-09-01 06:08:28,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:08:28,313 INFO L130 PetriNetUnfolder]: 56/113 cut-off events. [2023-09-01 06:08:28,313 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:08:28,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 113 events. 56/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 362 event pairs, 42 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 229. Up to 113 conditions per place. [2023-09-01 06:08:28,318 INFO L137 encePairwiseOnDemand]: 184/187 looper letters, 16 selfloop transitions, 1 changer transitions 0/17 dead transitions. [2023-09-01 06:08:28,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 17 transitions, 72 flow [2023-09-01 06:08:28,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:08:28,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:08:28,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 241 transitions. [2023-09-01 06:08:28,322 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4295900178253119 [2023-09-01 06:08:28,322 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 241 transitions. [2023-09-01 06:08:28,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 241 transitions. [2023-09-01 06:08:28,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:08:28,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 241 transitions. [2023-09-01 06:08:28,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 06:08:28,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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 06:08:28,329 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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 06:08:28,329 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 42 flow. Second operand 3 states and 241 transitions. [2023-09-01 06:08:28,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 17 transitions, 72 flow [2023-09-01 06:08:28,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 71 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:08:28,330 INFO L231 Difference]: Finished difference. Result has 22 places, 17 transitions, 39 flow [2023-09-01 06:08:28,330 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=39, PETRI_PLACES=22, PETRI_TRANSITIONS=17} [2023-09-01 06:08:28,332 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -2 predicate places. [2023-09-01 06:08:28,335 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 17 transitions, 39 flow [2023-09-01 06:08:28,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 06:08:28,336 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:08:28,336 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 06:08:28,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 06:08:28,337 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:08:28,337 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:08:28,338 INFO L85 PathProgramCache]: Analyzing trace with hash 9912536, now seen corresponding path program 1 times [2023-09-01 06:08:28,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:08:28,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712494482] [2023-09-01 06:08:28,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:08:28,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:08:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:08:28,414 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 06:08:28,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:08:28,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712494482] [2023-09-01 06:08:28,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712494482] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:08:28,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:08:28,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 06:08:28,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111421307] [2023-09-01 06:08:28,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:08:28,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:08:28,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:08:28,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:08:28,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:08:28,447 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 187 [2023-09-01 06:08:28,448 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 17 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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 06:08:28,448 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:08:28,448 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 187 [2023-09-01 06:08:28,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:08:28,505 INFO L130 PetriNetUnfolder]: 61/132 cut-off events. [2023-09-01 06:08:28,505 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:08:28,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 132 events. 61/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 526 event pairs, 42 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 268. Up to 107 conditions per place. [2023-09-01 06:08:28,507 INFO L137 encePairwiseOnDemand]: 183/187 looper letters, 18 selfloop transitions, 3 changer transitions 3/24 dead transitions. [2023-09-01 06:08:28,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 24 transitions, 101 flow [2023-09-01 06:08:28,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:08:28,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:08:28,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 247 transitions. [2023-09-01 06:08:28,511 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44028520499108736 [2023-09-01 06:08:28,511 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 247 transitions. [2023-09-01 06:08:28,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 247 transitions. [2023-09-01 06:08:28,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:08:28,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 247 transitions. [2023-09-01 06:08:28,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 06:08:28,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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 06:08:28,516 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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 06:08:28,516 INFO L175 Difference]: Start difference. First operand has 22 places, 17 transitions, 39 flow. Second operand 3 states and 247 transitions. [2023-09-01 06:08:28,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 24 transitions, 101 flow [2023-09-01 06:08:28,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 24 transitions, 100 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:08:28,517 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 53 flow [2023-09-01 06:08:28,517 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=24, PETRI_TRANSITIONS=18} [2023-09-01 06:08:28,518 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 0 predicate places. [2023-09-01 06:08:28,518 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 53 flow [2023-09-01 06:08:28,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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 06:08:28,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:08:28,519 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 06:08:28,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 06:08:28,519 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:08:28,519 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:08:28,519 INFO L85 PathProgramCache]: Analyzing trace with hash 9912440, now seen corresponding path program 1 times [2023-09-01 06:08:28,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:08:28,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935611307] [2023-09-01 06:08:28,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:08:28,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:08:28,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:08:28,558 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 06:08:28,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:08:28,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935611307] [2023-09-01 06:08:28,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935611307] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:08:28,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:08:28,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:08:28,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261730266] [2023-09-01 06:08:28,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:08:28,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:08:28,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:08:28,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:08:28,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:08:28,572 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 187 [2023-09-01 06:08:28,572 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 06:08:28,572 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:08:28,572 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 187 [2023-09-01 06:08:28,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:08:28,614 INFO L130 PetriNetUnfolder]: 48/116 cut-off events. [2023-09-01 06:08:28,615 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2023-09-01 06:08:28,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 116 events. 48/116 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 418 event pairs, 23 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 276. Up to 62 conditions per place. [2023-09-01 06:08:28,616 INFO L137 encePairwiseOnDemand]: 180/187 looper letters, 24 selfloop transitions, 5 changer transitions 3/32 dead transitions. [2023-09-01 06:08:28,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 32 transitions, 158 flow [2023-09-01 06:08:28,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:08:28,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:08:28,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2023-09-01 06:08:28,623 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49019607843137253 [2023-09-01 06:08:28,623 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 275 transitions. [2023-09-01 06:08:28,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 275 transitions. [2023-09-01 06:08:28,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:08:28,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 275 transitions. [2023-09-01 06:08:28,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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 06:08:28,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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 06:08:28,631 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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 06:08:28,631 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 53 flow. Second operand 3 states and 275 transitions. [2023-09-01 06:08:28,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 32 transitions, 158 flow [2023-09-01 06:08:28,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 32 transitions, 152 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:08:28,634 INFO L231 Difference]: Finished difference. Result has 27 places, 22 transitions, 90 flow [2023-09-01 06:08:28,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=27, PETRI_TRANSITIONS=22} [2023-09-01 06:08:28,636 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 3 predicate places. [2023-09-01 06:08:28,637 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 22 transitions, 90 flow [2023-09-01 06:08:28,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 06:08:28,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:08:28,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 06:08:28,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 06:08:28,638 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:08:28,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:08:28,638 INFO L85 PathProgramCache]: Analyzing trace with hash 9912442, now seen corresponding path program 1 times [2023-09-01 06:08:28,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:08:28,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498302920] [2023-09-01 06:08:28,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:08:28,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:08:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:08:28,700 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 06:08:28,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:08:28,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498302920] [2023-09-01 06:08:28,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498302920] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:08:28,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:08:28,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:08:28,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702016547] [2023-09-01 06:08:28,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:08:28,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:08:28,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:08:28,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:08:28,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:08:28,712 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 187 [2023-09-01 06:08:28,713 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 22 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 06:08:28,713 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:08:28,713 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 187 [2023-09-01 06:08:28,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:08:28,765 INFO L130 PetriNetUnfolder]: 39/93 cut-off events. [2023-09-01 06:08:28,766 INFO L131 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2023-09-01 06:08:28,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 93 events. 39/93 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 308 event pairs, 15 based on Foata normal form. 9/90 useless extension candidates. Maximal degree in co-relation 259. Up to 57 conditions per place. [2023-09-01 06:08:28,770 INFO L137 encePairwiseOnDemand]: 180/187 looper letters, 19 selfloop transitions, 5 changer transitions 6/30 dead transitions. [2023-09-01 06:08:28,770 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 30 transitions, 172 flow [2023-09-01 06:08:28,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:08:28,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:08:28,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2023-09-01 06:08:28,772 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48663101604278075 [2023-09-01 06:08:28,772 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2023-09-01 06:08:28,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2023-09-01 06:08:28,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:08:28,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2023-09-01 06:08:28,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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 06:08:28,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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 06:08:28,775 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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 06:08:28,776 INFO L175 Difference]: Start difference. First operand has 27 places, 22 transitions, 90 flow. Second operand 3 states and 273 transitions. [2023-09-01 06:08:28,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 30 transitions, 172 flow [2023-09-01 06:08:28,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 30 transitions, 162 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 06:08:28,779 INFO L231 Difference]: Finished difference. Result has 27 places, 17 transitions, 70 flow [2023-09-01 06:08:28,779 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=25, 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=3, PETRI_FLOW=70, PETRI_PLACES=27, PETRI_TRANSITIONS=17} [2023-09-01 06:08:28,781 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 3 predicate places. [2023-09-01 06:08:28,782 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 17 transitions, 70 flow [2023-09-01 06:08:28,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 06:08:28,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:08:28,782 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 06:08:28,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 06:08:28,783 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:08:28,785 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:08:28,785 INFO L85 PathProgramCache]: Analyzing trace with hash 935929648, now seen corresponding path program 1 times [2023-09-01 06:08:28,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:08:28,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262430351] [2023-09-01 06:08:28,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:08:28,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:08:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:08:28,848 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 06:08:28,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:08:28,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262430351] [2023-09-01 06:08:28,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262430351] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:08:28,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:08:28,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 06:08:28,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804751366] [2023-09-01 06:08:28,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:08:28,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:08:28,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:08:28,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:08:28,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:08:28,877 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 187 [2023-09-01 06:08:28,878 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 06:08:28,878 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:08:28,878 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 187 [2023-09-01 06:08:28,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:08:28,908 INFO L130 PetriNetUnfolder]: 20/54 cut-off events. [2023-09-01 06:08:28,909 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-09-01 06:08:28,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 54 events. 20/54 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 151 event pairs, 6 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 149. Up to 29 conditions per place. [2023-09-01 06:08:28,910 INFO L137 encePairwiseOnDemand]: 182/187 looper letters, 14 selfloop transitions, 4 changer transitions 5/23 dead transitions. [2023-09-01 06:08:28,910 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 23 transitions, 138 flow [2023-09-01 06:08:28,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:08:28,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:08:28,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 240 transitions. [2023-09-01 06:08:28,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42780748663101603 [2023-09-01 06:08:28,912 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 240 transitions. [2023-09-01 06:08:28,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 240 transitions. [2023-09-01 06:08:28,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:08:28,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 240 transitions. [2023-09-01 06:08:28,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 06:08:28,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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 06:08:28,916 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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 06:08:28,916 INFO L175 Difference]: Start difference. First operand has 27 places, 17 transitions, 70 flow. Second operand 3 states and 240 transitions. [2023-09-01 06:08:28,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 23 transitions, 138 flow [2023-09-01 06:08:28,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 23 transitions, 136 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-09-01 06:08:28,917 INFO L231 Difference]: Finished difference. Result has 26 places, 14 transitions, 64 flow [2023-09-01 06:08:28,917 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=26, PETRI_TRANSITIONS=14} [2023-09-01 06:08:28,918 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 2 predicate places. [2023-09-01 06:08:28,918 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 14 transitions, 64 flow [2023-09-01 06:08:28,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 06:08:28,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:08:28,919 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:08:28,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 06:08:28,921 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:08:28,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:08:28,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1052987778, now seen corresponding path program 1 times [2023-09-01 06:08:28,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:08:28,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568740366] [2023-09-01 06:08:28,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:08:28,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:08:28,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:08:28,969 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 06:08:28,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:08:28,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568740366] [2023-09-01 06:08:28,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568740366] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:08:28,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:08:28,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:08:28,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797372029] [2023-09-01 06:08:28,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:08:28,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:08:28,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:08:28,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:08:28,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:08:28,990 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 187 [2023-09-01 06:08:28,991 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 14 transitions, 64 flow. Second operand has 5 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 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 06:08:28,991 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:08:28,991 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 187 [2023-09-01 06:08:28,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:08:29,052 INFO L130 PetriNetUnfolder]: 14/44 cut-off events. [2023-09-01 06:08:29,053 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2023-09-01 06:08:29,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 44 events. 14/44 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 120 event pairs, 5 based on Foata normal form. 2/46 useless extension candidates. Maximal degree in co-relation 127. Up to 13 conditions per place. [2023-09-01 06:08:29,054 INFO L137 encePairwiseOnDemand]: 181/187 looper letters, 12 selfloop transitions, 5 changer transitions 5/22 dead transitions. [2023-09-01 06:08:29,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 22 transitions, 126 flow [2023-09-01 06:08:29,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 06:08:29,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 06:08:29,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 555 transitions. [2023-09-01 06:08:29,056 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4239877769289534 [2023-09-01 06:08:29,056 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 555 transitions. [2023-09-01 06:08:29,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 555 transitions. [2023-09-01 06:08:29,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:08:29,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 555 transitions. [2023-09-01 06:08:29,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 79.28571428571429) internal successors, (555), 7 states have internal predecessors, (555), 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 06:08:29,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 187.0) internal successors, (1496), 8 states have internal predecessors, (1496), 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 06:08:29,063 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 187.0) internal successors, (1496), 8 states have internal predecessors, (1496), 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 06:08:29,063 INFO L175 Difference]: Start difference. First operand has 26 places, 14 transitions, 64 flow. Second operand 7 states and 555 transitions. [2023-09-01 06:08:29,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 22 transitions, 126 flow [2023-09-01 06:08:29,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 22 transitions, 116 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 06:08:29,066 INFO L231 Difference]: Finished difference. Result has 29 places, 13 transitions, 60 flow [2023-09-01 06:08:29,066 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=60, PETRI_PLACES=29, PETRI_TRANSITIONS=13} [2023-09-01 06:08:29,068 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 5 predicate places. [2023-09-01 06:08:29,068 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 13 transitions, 60 flow [2023-09-01 06:08:29,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 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 06:08:29,068 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:08:29,068 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:08:29,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-01 06:08:29,069 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:08:29,070 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:08:29,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1052987777, now seen corresponding path program 1 times [2023-09-01 06:08:29,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:08:29,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598321677] [2023-09-01 06:08:29,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:08:29,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:08:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:08:29,143 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 06:08:29,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:08:29,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598321677] [2023-09-01 06:08:29,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598321677] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:08:29,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:08:29,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:08:29,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807203837] [2023-09-01 06:08:29,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:08:29,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:08:29,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:08:29,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:08:29,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:08:29,164 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 187 [2023-09-01 06:08:29,165 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 13 transitions, 60 flow. Second operand has 5 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 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 06:08:29,165 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:08:29,165 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 187 [2023-09-01 06:08:29,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:08:29,203 INFO L130 PetriNetUnfolder]: 12/36 cut-off events. [2023-09-01 06:08:29,204 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-09-01 06:08:29,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 36 events. 12/36 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 79 event pairs, 3 based on Foata normal form. 2/38 useless extension candidates. Maximal degree in co-relation 105. Up to 10 conditions per place. [2023-09-01 06:08:29,206 INFO L137 encePairwiseOnDemand]: 181/187 looper letters, 8 selfloop transitions, 3 changer transitions 7/18 dead transitions. [2023-09-01 06:08:29,206 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 18 transitions, 104 flow [2023-09-01 06:08:29,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 06:08:29,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 06:08:29,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 399 transitions. [2023-09-01 06:08:29,208 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4267379679144385 [2023-09-01 06:08:29,208 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 399 transitions. [2023-09-01 06:08:29,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 399 transitions. [2023-09-01 06:08:29,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:08:29,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 399 transitions. [2023-09-01 06:08:29,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 79.8) internal successors, (399), 5 states have internal predecessors, (399), 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 06:08:29,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 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 06:08:29,212 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 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 06:08:29,212 INFO L175 Difference]: Start difference. First operand has 29 places, 13 transitions, 60 flow. Second operand 5 states and 399 transitions. [2023-09-01 06:08:29,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 18 transitions, 104 flow [2023-09-01 06:08:29,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 18 transitions, 94 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 06:08:29,213 INFO L231 Difference]: Finished difference. Result has 28 places, 9 transitions, 42 flow [2023-09-01 06:08:29,214 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=42, PETRI_PLACES=28, PETRI_TRANSITIONS=9} [2023-09-01 06:08:29,214 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 4 predicate places. [2023-09-01 06:08:29,214 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 9 transitions, 42 flow [2023-09-01 06:08:29,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 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 06:08:29,215 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:08:29,215 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:08:29,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-01 06:08:29,215 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:08:29,216 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:08:29,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1053064411, now seen corresponding path program 1 times [2023-09-01 06:08:29,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:08:29,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750736761] [2023-09-01 06:08:29,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:08:29,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:08:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:08:29,298 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 06:08:29,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:08:29,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750736761] [2023-09-01 06:08:29,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750736761] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:08:29,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:08:29,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:08:29,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848750090] [2023-09-01 06:08:29,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:08:29,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:08:29,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:08:29,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:08:29,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:08:29,318 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 187 [2023-09-01 06:08:29,319 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 9 transitions, 42 flow. Second operand has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 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 06:08:29,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:08:29,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 187 [2023-09-01 06:08:29,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:08:29,345 INFO L130 PetriNetUnfolder]: 5/18 cut-off events. [2023-09-01 06:08:29,345 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2023-09-01 06:08:29,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 18 events. 5/18 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 1 based on Foata normal form. 2/20 useless extension candidates. Maximal degree in co-relation 54. Up to 6 conditions per place. [2023-09-01 06:08:29,346 INFO L137 encePairwiseOnDemand]: 182/187 looper letters, 8 selfloop transitions, 4 changer transitions 0/12 dead transitions. [2023-09-01 06:08:29,346 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 12 transitions, 74 flow [2023-09-01 06:08:29,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 06:08:29,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 06:08:29,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 476 transitions. [2023-09-01 06:08:29,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42424242424242425 [2023-09-01 06:08:29,348 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 476 transitions. [2023-09-01 06:08:29,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 476 transitions. [2023-09-01 06:08:29,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:08:29,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 476 transitions. [2023-09-01 06:08:29,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 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 06:08:29,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 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 06:08:29,352 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 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 06:08:29,352 INFO L175 Difference]: Start difference. First operand has 28 places, 9 transitions, 42 flow. Second operand 6 states and 476 transitions. [2023-09-01 06:08:29,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 12 transitions, 74 flow [2023-09-01 06:08:29,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 12 transitions, 58 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-09-01 06:08:29,353 INFO L231 Difference]: Finished difference. Result has 21 places, 8 transitions, 32 flow [2023-09-01 06:08:29,354 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=32, PETRI_PLACES=21, PETRI_TRANSITIONS=8} [2023-09-01 06:08:29,355 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -3 predicate places. [2023-09-01 06:08:29,355 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 8 transitions, 32 flow [2023-09-01 06:08:29,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 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 06:08:29,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:08:29,356 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:08:29,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-01 06:08:29,356 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:08:29,356 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:08:29,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1053064413, now seen corresponding path program 1 times [2023-09-01 06:08:29,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:08:29,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368855968] [2023-09-01 06:08:29,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:08:29,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:08:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:08:29,411 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 06:08:29,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:08:29,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368855968] [2023-09-01 06:08:29,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368855968] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:08:29,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:08:29,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:08:29,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850606684] [2023-09-01 06:08:29,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:08:29,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:08:29,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:08:29,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:08:29,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:08:29,434 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 187 [2023-09-01 06:08:29,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 8 transitions, 32 flow. Second operand has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 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 06:08:29,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:08:29,436 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 187 [2023-09-01 06:08:29,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:08:29,458 INFO L130 PetriNetUnfolder]: 4/15 cut-off events. [2023-09-01 06:08:29,459 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 06:08:29,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 15 events. 4/15 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 12 event pairs, 1 based on Foata normal form. 2/17 useless extension candidates. Maximal degree in co-relation 43. Up to 6 conditions per place. [2023-09-01 06:08:29,459 INFO L137 encePairwiseOnDemand]: 182/187 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2023-09-01 06:08:29,459 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 10 transitions, 54 flow [2023-09-01 06:08:29,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 06:08:29,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 06:08:29,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 474 transitions. [2023-09-01 06:08:29,461 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42245989304812837 [2023-09-01 06:08:29,462 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 474 transitions. [2023-09-01 06:08:29,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 474 transitions. [2023-09-01 06:08:29,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:08:29,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 474 transitions. [2023-09-01 06:08:29,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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 06:08:29,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 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 06:08:29,466 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 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 06:08:29,466 INFO L175 Difference]: Start difference. First operand has 21 places, 8 transitions, 32 flow. Second operand 6 states and 474 transitions. [2023-09-01 06:08:29,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 10 transitions, 54 flow [2023-09-01 06:08:29,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 10 transitions, 45 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-09-01 06:08:29,467 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2023-09-01 06:08:29,467 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=19, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2023-09-01 06:08:29,467 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -5 predicate places. [2023-09-01 06:08:29,468 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2023-09-01 06:08:29,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 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 06:08:29,473 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2023-09-01 06:08:29,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2023-09-01 06:08:29,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2023-09-01 06:08:29,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2023-09-01 06:08:29,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2023-09-01 06:08:29,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2023-09-01 06:08:29,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2023-09-01 06:08:29,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2023-09-01 06:08:29,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2023-09-01 06:08:29,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2023-09-01 06:08:29,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2023-09-01 06:08:29,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2023-09-01 06:08:29,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2023-09-01 06:08:29,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-09-01 06:08:29,477 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:08:29,490 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 06:08:29,490 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 06:08:29,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 06:08:29 BasicIcfg [2023-09-01 06:08:29,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 06:08:29,494 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 06:08:29,494 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 06:08:29,494 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 06:08:29,494 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:08:24" (3/4) ... [2023-09-01 06:08:29,497 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 06:08:29,503 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-09-01 06:08:29,506 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-09-01 06:08:29,506 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-09-01 06:08:29,507 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 06:08:29,539 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 06:08:29,539 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 06:08:29,539 INFO L158 Benchmark]: Toolchain (without parser) took 6076.31ms. Allocated memory was 77.6MB in the beginning and 144.7MB in the end (delta: 67.1MB). Free memory was 53.6MB in the beginning and 83.6MB in the end (delta: -30.0MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2023-09-01 06:08:29,540 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:08:29,540 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.60ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 53.4MB in the beginning and 66.3MB in the end (delta: -12.9MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2023-09-01 06:08:29,540 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.04ms. Allocated memory is still 98.6MB. Free memory was 66.3MB in the beginning and 64.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:08:29,540 INFO L158 Benchmark]: Boogie Preprocessor took 47.27ms. Allocated memory is still 98.6MB. Free memory was 64.1MB in the beginning and 62.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:08:29,541 INFO L158 Benchmark]: RCFGBuilder took 434.25ms. Allocated memory is still 98.6MB. Free memory was 62.8MB in the beginning and 49.4MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-09-01 06:08:29,541 INFO L158 Benchmark]: TraceAbstraction took 4959.19ms. Allocated memory was 98.6MB in the beginning and 144.7MB in the end (delta: 46.1MB). Free memory was 49.0MB in the beginning and 86.8MB in the end (delta: -37.8MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2023-09-01 06:08:29,541 INFO L158 Benchmark]: Witness Printer took 45.01ms. Allocated memory is still 144.7MB. Free memory was 86.8MB in the beginning and 83.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 06:08:29,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 518.60ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 53.4MB in the beginning and 66.3MB in the end (delta: -12.9MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.04ms. Allocated memory is still 98.6MB. Free memory was 66.3MB in the beginning and 64.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.27ms. Allocated memory is still 98.6MB. Free memory was 64.1MB in the beginning and 62.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 434.25ms. Allocated memory is still 98.6MB. Free memory was 62.8MB in the beginning and 49.4MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4959.19ms. Allocated memory was 98.6MB in the beginning and 144.7MB in the end (delta: 46.1MB). Free memory was 49.0MB in the beginning and 86.8MB in the end (delta: -37.8MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * Witness Printer took 45.01ms. Allocated memory is still 144.7MB. Free memory was 86.8MB in the beginning and 83.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 84 PlacesBefore, 24 PlacesAfterwards, 84 TransitionsBefore, 22 TransitionsAfterwards, 1274 CoEnabledTransitionPairs, 5 FixpointIterations, 20 TrivialSequentialCompositions, 70 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 102 TotalNumberOfCompositions, 2163 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1384, independent: 1311, independent conditional: 0, independent unconditional: 1311, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 777, independent: 755, independent conditional: 0, independent unconditional: 755, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1384, independent: 556, independent conditional: 0, independent unconditional: 556, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 777, unknown conditional: 0, unknown unconditional: 777] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 23, Positive conditional cache size: 0, Positive unconditional cache size: 23, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 947]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 947]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 949]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 949]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 951]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 951]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 97 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.8s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 373 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 209 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 518 IncrementalHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 19 mSDtfsCounter, 518 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=5, InterpolantAutomatonStates: 44, 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, 0.5s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 126 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 06:08:29,561 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE