./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_02-idx_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_02-idx_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6a6d4c6573ed55a0a96a38de6d1424f0a577970a6c88cea50d5cb9a315d791fd --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 13:47:30,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:47:30,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:47:30,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:47:30,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:47:30,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:47:30,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:47:30,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:47:30,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:47:30,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:47:30,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:47:30,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:47:30,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:47:30,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:47:30,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:47:30,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:47:30,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:47:30,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:47:30,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:47:30,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:47:30,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:47:30,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:47:30,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:47:30,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:47:30,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:47:30,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:47:30,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:47:30,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:47:30,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:47:30,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:47:30,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:47:30,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:47:30,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:47:30,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:47:30,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:47:30,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:47:30,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:47:30,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:47:30,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:47:30,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:47:30,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:47:30,708 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:47:30,739 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:47:30,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:47:30,741 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:47:30,741 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:47:30,742 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:47:30,742 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:47:30,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:47:30,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:47:30,743 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:47:30,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:47:30,744 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:47:30,744 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:47:30,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:47:30,745 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:47:30,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:47:30,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:47:30,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:47:30,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:47:30,746 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:47:30,746 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:47:30,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:47:30,746 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:47:30,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:47:30,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:47:30,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:47:30,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:47:30,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:47:30,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:47:30,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:47:30,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:47:30,748 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:47:30,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:47:30,749 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:47:30,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:47:30,749 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:47:30,750 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:47:30,750 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:47:30,750 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a6d4c6573ed55a0a96a38de6d1424f0a577970a6c88cea50d5cb9a315d791fd Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:47:31,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:47:31,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:47:31,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:47:31,075 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:47:31,075 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:47:31,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_02-idx_nr.i [2023-08-30 13:47:32,091 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:47:32,335 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:47:32,336 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_02-idx_nr.i [2023-08-30 13:47:32,344 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/201d84e25/02d7b5747cd84191af5c1351e3b0e52c/FLAGcc7a9e537 [2023-08-30 13:47:32,359 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/201d84e25/02d7b5747cd84191af5c1351e3b0e52c [2023-08-30 13:47:32,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:47:32,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:47:32,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:47:32,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:47:32,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:47:32,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:47:32" (1/1) ... [2023-08-30 13:47:32,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@652c23ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:47:32, skipping insertion in model container [2023-08-30 13:47:32,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:47:32" (1/1) ... [2023-08-30 13:47:32,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:47:32,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:47:32,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:47:32,730 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:47:32,772 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:47:32,813 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:47:32,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:47:32 WrapperNode [2023-08-30 13:47:32,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:47:32,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:47:32,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:47:32,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:47:32,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:47:32" (1/1) ... [2023-08-30 13:47:32,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:47:32" (1/1) ... [2023-08-30 13:47:32,863 INFO L138 Inliner]: procedures = 161, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2023-08-30 13:47:32,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:47:32,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:47:32,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:47:32,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:47:32,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:47:32" (1/1) ... [2023-08-30 13:47:32,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:47:32" (1/1) ... [2023-08-30 13:47:32,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:47:32" (1/1) ... [2023-08-30 13:47:32,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:47:32" (1/1) ... [2023-08-30 13:47:32,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:47:32" (1/1) ... [2023-08-30 13:47:32,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:47:32" (1/1) ... [2023-08-30 13:47:32,900 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:47:32" (1/1) ... [2023-08-30 13:47:32,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:47:32" (1/1) ... [2023-08-30 13:47:32,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:47:32,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:47:32,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:47:32,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:47:32,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:47:32" (1/1) ... [2023-08-30 13:47:32,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:47:32,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:47:32,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 13:47:32,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 13:47:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:47:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 13:47:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:47:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:47:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 13:47:32,980 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 13:47:32,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:47:32,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:47:32,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:47:32,982 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 13:47:33,134 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:47:33,136 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:47:33,252 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:47:33,257 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:47:33,257 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-30 13:47:33,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:47:33 BoogieIcfgContainer [2023-08-30 13:47:33,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:47:33,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:47:33,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:47:33,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:47:33,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:47:32" (1/3) ... [2023-08-30 13:47:33,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6a4b5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:47:33, skipping insertion in model container [2023-08-30 13:47:33,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:47:32" (2/3) ... [2023-08-30 13:47:33,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6a4b5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:47:33, skipping insertion in model container [2023-08-30 13:47:33,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:47:33" (3/3) ... [2023-08-30 13:47:33,265 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_02-idx_nr.i [2023-08-30 13:47:33,272 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:47:33,293 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:47:33,294 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 13:47:33,294 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:47:33,333 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 13:47:33,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 57 transitions, 119 flow [2023-08-30 13:47:33,385 INFO L130 PetriNetUnfolder]: 2/56 cut-off events. [2023-08-30 13:47:33,386 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:47:33,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 56 events. 2/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-08-30 13:47:33,389 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 57 transitions, 119 flow [2023-08-30 13:47:33,391 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 56 transitions, 115 flow [2023-08-30 13:47:33,394 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:47:33,401 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 56 transitions, 115 flow [2023-08-30 13:47:33,403 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 56 transitions, 115 flow [2023-08-30 13:47:33,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 56 transitions, 115 flow [2023-08-30 13:47:33,415 INFO L130 PetriNetUnfolder]: 2/56 cut-off events. [2023-08-30 13:47:33,417 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:47:33,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 56 events. 2/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-08-30 13:47:33,418 INFO L119 LiptonReduction]: Number of co-enabled transitions 442 [2023-08-30 13:47:34,611 INFO L134 LiptonReduction]: Checked pairs total: 859 [2023-08-30 13:47:34,612 INFO L136 LiptonReduction]: Total number of compositions: 50 [2023-08-30 13:47:34,623 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:47:34,629 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;@5f7b7dad, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:47:34,629 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-08-30 13:47:34,631 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2023-08-30 13:47:34,631 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:47:34,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:47:34,632 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-30 13:47:34,632 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 13:47:34,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:47:34,636 INFO L85 PathProgramCache]: Analyzing trace with hash 6908, now seen corresponding path program 1 times [2023-08-30 13:47:34,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:47:34,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029995085] [2023-08-30 13:47:34,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:47:34,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:47:34,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:47:34,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:47:34,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:47:34,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029995085] [2023-08-30 13:47:34,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029995085] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:47:34,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:47:34,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:47:34,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582132476] [2023-08-30 13:47:34,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:47:34,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:47:34,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:47:34,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:47:34,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:47:34,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 107 [2023-08-30 13:47:34,919 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:34,919 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:47:34,919 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 107 [2023-08-30 13:47:34,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:47:34,984 INFO L130 PetriNetUnfolder]: 37/90 cut-off events. [2023-08-30 13:47:34,984 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:47:34,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 90 events. 37/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 282 event pairs, 36 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 168. Up to 90 conditions per place. [2023-08-30 13:47:34,987 INFO L137 encePairwiseOnDemand]: 102/107 looper letters, 16 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2023-08-30 13:47:34,988 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 75 flow [2023-08-30 13:47:34,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:47:34,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:47:34,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 175 transitions. [2023-08-30 13:47:35,001 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5451713395638629 [2023-08-30 13:47:35,001 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 175 transitions. [2023-08-30 13:47:35,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 175 transitions. [2023-08-30 13:47:35,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:47:35,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 175 transitions. [2023-08-30 13:47:35,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,017 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,019 INFO L175 Difference]: Start difference. First operand has 21 places, 18 transitions, 39 flow. Second operand 3 states and 175 transitions. [2023-08-30 13:47:35,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 75 flow [2023-08-30 13:47:35,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:47:35,023 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 50 flow [2023-08-30 13:47:35,024 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=22, PETRI_TRANSITIONS=18} [2023-08-30 13:47:35,028 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 1 predicate places. [2023-08-30 13:47:35,028 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 50 flow [2023-08-30 13:47:35,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,029 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:47:35,029 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 13:47:35,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:47:35,029 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 13:47:35,030 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:47:35,031 INFO L85 PathProgramCache]: Analyzing trace with hash 214515, now seen corresponding path program 1 times [2023-08-30 13:47:35,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:47:35,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142851250] [2023-08-30 13:47:35,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:47:35,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:47:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:47:35,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:47:35,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:47:35,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142851250] [2023-08-30 13:47:35,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142851250] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:47:35,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:47:35,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:47:35,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170079560] [2023-08-30 13:47:35,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:47:35,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:47:35,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:47:35,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:47:35,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:47:35,107 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 107 [2023-08-30 13:47:35,108 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:47:35,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 107 [2023-08-30 13:47:35,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:47:35,141 INFO L130 PetriNetUnfolder]: 37/89 cut-off events. [2023-08-30 13:47:35,141 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:47:35,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 89 events. 37/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 281 event pairs, 36 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 178. Up to 89 conditions per place. [2023-08-30 13:47:35,142 INFO L137 encePairwiseOnDemand]: 105/107 looper letters, 16 selfloop transitions, 1 changer transitions 0/17 dead transitions. [2023-08-30 13:47:35,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 17 transitions, 80 flow [2023-08-30 13:47:35,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:47:35,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:47:35,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 170 transitions. [2023-08-30 13:47:35,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5295950155763239 [2023-08-30 13:47:35,144 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 170 transitions. [2023-08-30 13:47:35,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 170 transitions. [2023-08-30 13:47:35,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:47:35,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 170 transitions. [2023-08-30 13:47:35,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,147 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,147 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 50 flow. Second operand 3 states and 170 transitions. [2023-08-30 13:47:35,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 17 transitions, 80 flow [2023-08-30 13:47:35,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 76 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 13:47:35,148 INFO L231 Difference]: Finished difference. Result has 22 places, 17 transitions, 44 flow [2023-08-30 13:47:35,149 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=22, PETRI_TRANSITIONS=17} [2023-08-30 13:47:35,149 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 1 predicate places. [2023-08-30 13:47:35,149 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 17 transitions, 44 flow [2023-08-30 13:47:35,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,150 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:47:35,150 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 13:47:35,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:47:35,150 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 13:47:35,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:47:35,151 INFO L85 PathProgramCache]: Analyzing trace with hash 2095756518, now seen corresponding path program 1 times [2023-08-30 13:47:35,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:47:35,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386944429] [2023-08-30 13:47:35,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:47:35,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:47:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:47:35,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:47:35,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:47:35,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386944429] [2023-08-30 13:47:35,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386944429] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:47:35,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532492010] [2023-08-30 13:47:35,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:47:35,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:47:35,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:47:35,213 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 13:47:35,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 13:47:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:47:35,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-30 13:47:35,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:47:35,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:47:35,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 13:47:35,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:47:35,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532492010] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 13:47:35,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 13:47:35,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-30 13:47:35,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586516523] [2023-08-30 13:47:35,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 13:47:35,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:47:35,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:47:35,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:47:35,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:47:35,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 107 [2023-08-30 13:47:35,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 17 transitions, 44 flow. Second operand has 7 states, 7 states have (on average 51.57142857142857) internal successors, (361), 7 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:47:35,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 107 [2023-08-30 13:47:35,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:47:35,464 INFO L130 PetriNetUnfolder]: 37/92 cut-off events. [2023-08-30 13:47:35,465 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:47:35,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 92 events. 37/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 281 event pairs, 36 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 189. Up to 89 conditions per place. [2023-08-30 13:47:35,467 INFO L137 encePairwiseOnDemand]: 104/107 looper letters, 15 selfloop transitions, 5 changer transitions 0/20 dead transitions. [2023-08-30 13:47:35,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 20 transitions, 96 flow [2023-08-30 13:47:35,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:47:35,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:47:35,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 323 transitions. [2023-08-30 13:47:35,471 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5031152647975078 [2023-08-30 13:47:35,472 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 323 transitions. [2023-08-30 13:47:35,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 323 transitions. [2023-08-30 13:47:35,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:47:35,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 323 transitions. [2023-08-30 13:47:35,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 53.833333333333336) internal successors, (323), 6 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,477 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,477 INFO L175 Difference]: Start difference. First operand has 22 places, 17 transitions, 44 flow. Second operand 6 states and 323 transitions. [2023-08-30 13:47:35,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 20 transitions, 96 flow [2023-08-30 13:47:35,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 95 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:47:35,478 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 79 flow [2023-08-30 13:47:35,478 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=79, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2023-08-30 13:47:35,479 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 8 predicate places. [2023-08-30 13:47:35,480 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 79 flow [2023-08-30 13:47:35,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.57142857142857) internal successors, (361), 7 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:47:35,480 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-08-30 13:47:35,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-30 13:47:35,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:47:35,685 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 13:47:35,685 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:47:35,685 INFO L85 PathProgramCache]: Analyzing trace with hash 2103736701, now seen corresponding path program 2 times [2023-08-30 13:47:35,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:47:35,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180641683] [2023-08-30 13:47:35,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:47:35,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:47:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:47:35,775 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-30 13:47:35,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:47:35,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180641683] [2023-08-30 13:47:35,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180641683] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:47:35,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:47:35,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:47:35,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792594974] [2023-08-30 13:47:35,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:47:35,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:47:35,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:47:35,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:47:35,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:47:35,784 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 107 [2023-08-30 13:47:35,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:47:35,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 107 [2023-08-30 13:47:35,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:47:35,827 INFO L130 PetriNetUnfolder]: 26/76 cut-off events. [2023-08-30 13:47:35,828 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 13:47:35,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 76 events. 26/76 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 226 event pairs, 13 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 168. Up to 39 conditions per place. [2023-08-30 13:47:35,832 INFO L137 encePairwiseOnDemand]: 100/107 looper letters, 21 selfloop transitions, 5 changer transitions 4/30 dead transitions. [2023-08-30 13:47:35,832 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 30 transitions, 159 flow [2023-08-30 13:47:35,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:47:35,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:47:35,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 184 transitions. [2023-08-30 13:47:35,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.573208722741433 [2023-08-30 13:47:35,834 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 184 transitions. [2023-08-30 13:47:35,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 184 transitions. [2023-08-30 13:47:35,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:47:35,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 184 transitions. [2023-08-30 13:47:35,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,836 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,836 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 79 flow. Second operand 3 states and 184 transitions. [2023-08-30 13:47:35,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 30 transitions, 159 flow [2023-08-30 13:47:35,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 145 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-30 13:47:35,838 INFO L231 Difference]: Finished difference. Result has 32 places, 22 transitions, 97 flow [2023-08-30 13:47:35,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2023-08-30 13:47:35,839 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 11 predicate places. [2023-08-30 13:47:35,839 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 97 flow [2023-08-30 13:47:35,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,840 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:47:35,840 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-08-30 13:47:35,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:47:35,840 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 13:47:35,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:47:35,841 INFO L85 PathProgramCache]: Analyzing trace with hash 2103736711, now seen corresponding path program 1 times [2023-08-30 13:47:35,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:47:35,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181757099] [2023-08-30 13:47:35,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:47:35,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:47:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:47:35,923 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-30 13:47:35,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:47:35,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181757099] [2023-08-30 13:47:35,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181757099] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:47:35,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:47:35,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:47:35,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354190884] [2023-08-30 13:47:35,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:47:35,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:47:35,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:47:35,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:47:35,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:47:35,931 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 107 [2023-08-30 13:47:35,932 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,932 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:47:35,932 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 107 [2023-08-30 13:47:35,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:47:35,963 INFO L130 PetriNetUnfolder]: 17/52 cut-off events. [2023-08-30 13:47:35,963 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2023-08-30 13:47:35,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 52 events. 17/52 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 120 event pairs, 8 based on Foata normal form. 6/58 useless extension candidates. Maximal degree in co-relation 138. Up to 33 conditions per place. [2023-08-30 13:47:35,964 INFO L137 encePairwiseOnDemand]: 102/107 looper letters, 19 selfloop transitions, 3 changer transitions 2/24 dead transitions. [2023-08-30 13:47:35,964 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 24 transitions, 145 flow [2023-08-30 13:47:35,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:47:35,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:47:35,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2023-08-30 13:47:35,965 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5545171339563862 [2023-08-30 13:47:35,965 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 178 transitions. [2023-08-30 13:47:35,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 178 transitions. [2023-08-30 13:47:35,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:47:35,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 178 transitions. [2023-08-30 13:47:35,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,968 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,968 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 97 flow. Second operand 3 states and 178 transitions. [2023-08-30 13:47:35,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 24 transitions, 145 flow [2023-08-30 13:47:35,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 24 transitions, 135 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:47:35,973 INFO L231 Difference]: Finished difference. Result has 32 places, 20 transitions, 85 flow [2023-08-30 13:47:35,973 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2023-08-30 13:47:35,974 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 11 predicate places. [2023-08-30 13:47:35,975 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 85 flow [2023-08-30 13:47:35,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:35,975 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:47:35,976 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:47:35,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 13:47:35,976 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 13:47:35,977 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:47:35,978 INFO L85 PathProgramCache]: Analyzing trace with hash 256994795, now seen corresponding path program 1 times [2023-08-30 13:47:35,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:47:35,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434050808] [2023-08-30 13:47:35,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:47:35,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:47:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:47:36,089 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-30 13:47:36,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:47:36,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434050808] [2023-08-30 13:47:36,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434050808] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:47:36,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:47:36,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:47:36,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443364287] [2023-08-30 13:47:36,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:47:36,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:47:36,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:47:36,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:47:36,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:47:36,103 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 107 [2023-08-30 13:47:36,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 20 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:36,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:47:36,103 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 107 [2023-08-30 13:47:36,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:47:36,136 INFO L130 PetriNetUnfolder]: 1/24 cut-off events. [2023-08-30 13:47:36,136 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2023-08-30 13:47:36,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 24 events. 1/24 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 28 event pairs, 0 based on Foata normal form. 6/28 useless extension candidates. Maximal degree in co-relation 66. Up to 14 conditions per place. [2023-08-30 13:47:36,137 INFO L137 encePairwiseOnDemand]: 103/107 looper letters, 16 selfloop transitions, 4 changer transitions 0/20 dead transitions. [2023-08-30 13:47:36,137 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 20 transitions, 125 flow [2023-08-30 13:47:36,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:47:36,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:47:36,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 165 transitions. [2023-08-30 13:47:36,138 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.514018691588785 [2023-08-30 13:47:36,138 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 165 transitions. [2023-08-30 13:47:36,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 165 transitions. [2023-08-30 13:47:36,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:47:36,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 165 transitions. [2023-08-30 13:47:36,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:36,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:36,140 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:36,140 INFO L175 Difference]: Start difference. First operand has 32 places, 20 transitions, 85 flow. Second operand 3 states and 165 transitions. [2023-08-30 13:47:36,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 20 transitions, 125 flow [2023-08-30 13:47:36,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 20 transitions, 117 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:47:36,142 INFO L231 Difference]: Finished difference. Result has 32 places, 20 transitions, 85 flow [2023-08-30 13:47:36,142 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2023-08-30 13:47:36,143 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 11 predicate places. [2023-08-30 13:47:36,143 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 85 flow [2023-08-30 13:47:36,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:36,143 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:47:36,143 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:47:36,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 13:47:36,144 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 13:47:36,144 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:47:36,144 INFO L85 PathProgramCache]: Analyzing trace with hash -601319423, now seen corresponding path program 1 times [2023-08-30 13:47:36,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:47:36,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143697376] [2023-08-30 13:47:36,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:47:36,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:47:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:47:36,249 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:47:36,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:47:36,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143697376] [2023-08-30 13:47:36,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143697376] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:47:36,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366914727] [2023-08-30 13:47:36,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:47:36,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:47:36,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:47:36,252 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 13:47:36,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-30 13:47:36,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:47:36,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-30 13:47:36,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:47:36,336 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:47:36,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 13:47:36,378 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:47:36,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366914727] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 13:47:36,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 13:47:36,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-30 13:47:36,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388779601] [2023-08-30 13:47:36,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 13:47:36,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:47:36,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:47:36,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:47:36,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:47:36,409 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 107 [2023-08-30 13:47:36,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 20 transitions, 85 flow. Second operand has 13 states, 13 states have (on average 51.61538461538461) internal successors, (671), 13 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:36,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:47:36,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 107 [2023-08-30 13:47:36,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:47:36,449 INFO L130 PetriNetUnfolder]: 1/30 cut-off events. [2023-08-30 13:47:36,449 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2023-08-30 13:47:36,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 30 events. 1/30 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 28 event pairs, 0 based on Foata normal form. 6/34 useless extension candidates. Maximal degree in co-relation 92. Up to 21 conditions per place. [2023-08-30 13:47:36,450 INFO L137 encePairwiseOnDemand]: 104/107 looper letters, 15 selfloop transitions, 11 changer transitions 0/26 dead transitions. [2023-08-30 13:47:36,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 26 transitions, 173 flow [2023-08-30 13:47:36,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:47:36,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:47:36,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 632 transitions. [2023-08-30 13:47:36,452 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49221183800623053 [2023-08-30 13:47:36,452 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 632 transitions. [2023-08-30 13:47:36,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 632 transitions. [2023-08-30 13:47:36,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:47:36,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 632 transitions. [2023-08-30 13:47:36,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 52.666666666666664) internal successors, (632), 12 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:36,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 107.0) internal successors, (1391), 13 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:36,457 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 107.0) internal successors, (1391), 13 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:36,457 INFO L175 Difference]: Start difference. First operand has 32 places, 20 transitions, 85 flow. Second operand 12 states and 632 transitions. [2023-08-30 13:47:36,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 26 transitions, 173 flow [2023-08-30 13:47:36,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 26 transitions, 169 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:47:36,459 INFO L231 Difference]: Finished difference. Result has 48 places, 26 transitions, 165 flow [2023-08-30 13:47:36,460 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=165, PETRI_PLACES=48, PETRI_TRANSITIONS=26} [2023-08-30 13:47:36,460 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 27 predicate places. [2023-08-30 13:47:36,460 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 26 transitions, 165 flow [2023-08-30 13:47:36,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.61538461538461) internal successors, (671), 13 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:36,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:47:36,461 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:47:36,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-30 13:47:36,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-08-30 13:47:36,666 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 13:47:36,666 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:47:36,666 INFO L85 PathProgramCache]: Analyzing trace with hash 649461601, now seen corresponding path program 2 times [2023-08-30 13:47:36,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:47:36,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255302320] [2023-08-30 13:47:36,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:47:36,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:47:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:47:36,760 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-30 13:47:36,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:47:36,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255302320] [2023-08-30 13:47:36,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255302320] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:47:36,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:47:36,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:47:36,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168185895] [2023-08-30 13:47:36,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:47:36,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:47:36,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:47:36,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:47:36,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:47:36,778 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 107 [2023-08-30 13:47:36,779 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 26 transitions, 165 flow. Second operand has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:36,779 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:47:36,779 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 107 [2023-08-30 13:47:36,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:47:36,821 INFO L130 PetriNetUnfolder]: 1/29 cut-off events. [2023-08-30 13:47:36,822 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2023-08-30 13:47:36,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 29 events. 1/29 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 22 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 108. Up to 17 conditions per place. [2023-08-30 13:47:36,822 INFO L137 encePairwiseOnDemand]: 101/107 looper letters, 22 selfloop transitions, 5 changer transitions 2/29 dead transitions. [2023-08-30 13:47:36,822 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 29 transitions, 229 flow [2023-08-30 13:47:36,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:47:36,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:47:36,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 302 transitions. [2023-08-30 13:47:36,824 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.470404984423676 [2023-08-30 13:47:36,824 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 302 transitions. [2023-08-30 13:47:36,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 302 transitions. [2023-08-30 13:47:36,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:47:36,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 302 transitions. [2023-08-30 13:47:36,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 50.333333333333336) internal successors, (302), 6 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:36,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:36,827 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:36,827 INFO L175 Difference]: Start difference. First operand has 48 places, 26 transitions, 165 flow. Second operand 6 states and 302 transitions. [2023-08-30 13:47:36,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 29 transitions, 229 flow [2023-08-30 13:47:36,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 29 transitions, 181 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-30 13:47:36,831 INFO L231 Difference]: Finished difference. Result has 47 places, 25 transitions, 123 flow [2023-08-30 13:47:36,832 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=123, PETRI_PLACES=47, PETRI_TRANSITIONS=25} [2023-08-30 13:47:36,834 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 26 predicate places. [2023-08-30 13:47:36,834 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 25 transitions, 123 flow [2023-08-30 13:47:36,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:36,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:47:36,836 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:47:36,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 13:47:36,836 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 13:47:36,836 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:47:36,836 INFO L85 PathProgramCache]: Analyzing trace with hash 649461608, now seen corresponding path program 1 times [2023-08-30 13:47:36,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:47:36,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993126307] [2023-08-30 13:47:36,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:47:36,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:47:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:47:36,913 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-30 13:47:36,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:47:36,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993126307] [2023-08-30 13:47:36,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993126307] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:47:36,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:47:36,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:47:36,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795383428] [2023-08-30 13:47:36,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:47:36,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:47:36,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:47:36,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:47:36,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:47:36,931 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 107 [2023-08-30 13:47:36,933 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 25 transitions, 123 flow. Second operand has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:36,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:47:36,933 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 107 [2023-08-30 13:47:36,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:47:36,964 INFO L130 PetriNetUnfolder]: 1/27 cut-off events. [2023-08-30 13:47:36,964 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-08-30 13:47:36,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 27 events. 1/27 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 1/28 useless extension candidates. Maximal degree in co-relation 85. Up to 17 conditions per place. [2023-08-30 13:47:36,965 INFO L137 encePairwiseOnDemand]: 101/107 looper letters, 18 selfloop transitions, 3 changer transitions 6/27 dead transitions. [2023-08-30 13:47:36,965 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 27 transitions, 182 flow [2023-08-30 13:47:36,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:47:36,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:47:36,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 253 transitions. [2023-08-30 13:47:36,966 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47289719626168225 [2023-08-30 13:47:36,966 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 253 transitions. [2023-08-30 13:47:36,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 253 transitions. [2023-08-30 13:47:36,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:47:36,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 253 transitions. [2023-08-30 13:47:36,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 50.6) internal successors, (253), 5 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:36,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:36,969 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:36,969 INFO L175 Difference]: Start difference. First operand has 47 places, 25 transitions, 123 flow. Second operand 5 states and 253 transitions. [2023-08-30 13:47:36,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 27 transitions, 182 flow [2023-08-30 13:47:36,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 27 transitions, 177 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:47:36,971 INFO L231 Difference]: Finished difference. Result has 48 places, 21 transitions, 111 flow [2023-08-30 13:47:36,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=111, PETRI_PLACES=48, PETRI_TRANSITIONS=21} [2023-08-30 13:47:36,971 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 27 predicate places. [2023-08-30 13:47:36,972 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 21 transitions, 111 flow [2023-08-30 13:47:36,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:36,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:47:36,972 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:47:36,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 13:47:36,973 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 13:47:36,973 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:47:36,973 INFO L85 PathProgramCache]: Analyzing trace with hash -257412939, now seen corresponding path program 1 times [2023-08-30 13:47:36,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:47:36,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239042046] [2023-08-30 13:47:36,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:47:36,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:47:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:47:37,033 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-30 13:47:37,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:47:37,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239042046] [2023-08-30 13:47:37,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239042046] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:47:37,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:47:37,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:47:37,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989985629] [2023-08-30 13:47:37,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:47:37,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:47:37,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:47:37,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:47:37,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:47:37,048 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 107 [2023-08-30 13:47:37,049 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 21 transitions, 111 flow. Second operand has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:37,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:47:37,049 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 107 [2023-08-30 13:47:37,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:47:37,079 INFO L130 PetriNetUnfolder]: 1/21 cut-off events. [2023-08-30 13:47:37,080 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2023-08-30 13:47:37,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 21 events. 1/21 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 69. Up to 16 conditions per place. [2023-08-30 13:47:37,080 INFO L137 encePairwiseOnDemand]: 103/107 looper letters, 17 selfloop transitions, 3 changer transitions 1/21 dead transitions. [2023-08-30 13:47:37,080 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 21 transitions, 150 flow [2023-08-30 13:47:37,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:47:37,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:47:37,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 252 transitions. [2023-08-30 13:47:37,082 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47102803738317756 [2023-08-30 13:47:37,082 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 252 transitions. [2023-08-30 13:47:37,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 252 transitions. [2023-08-30 13:47:37,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:47:37,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 252 transitions. [2023-08-30 13:47:37,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 50.4) internal successors, (252), 5 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:37,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:37,085 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:37,085 INFO L175 Difference]: Start difference. First operand has 48 places, 21 transitions, 111 flow. Second operand 5 states and 252 transitions. [2023-08-30 13:47:37,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 21 transitions, 150 flow [2023-08-30 13:47:37,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 21 transitions, 141 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 13:47:37,087 INFO L231 Difference]: Finished difference. Result has 41 places, 20 transitions, 102 flow [2023-08-30 13:47:37,088 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=41, PETRI_TRANSITIONS=20} [2023-08-30 13:47:37,089 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 20 predicate places. [2023-08-30 13:47:37,089 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 20 transitions, 102 flow [2023-08-30 13:47:37,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:37,089 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:47:37,089 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:47:37,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 13:47:37,090 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 13:47:37,090 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:47:37,090 INFO L85 PathProgramCache]: Analyzing trace with hash -257412929, now seen corresponding path program 1 times [2023-08-30 13:47:37,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:47:37,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056971082] [2023-08-30 13:47:37,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:47:37,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:47:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:47:37,192 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-30 13:47:37,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:47:37,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056971082] [2023-08-30 13:47:37,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056971082] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:47:37,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:47:37,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:47:37,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860261103] [2023-08-30 13:47:37,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:47:37,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:47:37,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:47:37,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:47:37,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:47:37,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 107 [2023-08-30 13:47:37,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 20 transitions, 102 flow. Second operand has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:37,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:47:37,211 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 107 [2023-08-30 13:47:37,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:47:37,231 INFO L130 PetriNetUnfolder]: 1/20 cut-off events. [2023-08-30 13:47:37,231 INFO L131 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2023-08-30 13:47:37,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 20 events. 1/20 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 66. Up to 16 conditions per place. [2023-08-30 13:47:37,232 INFO L137 encePairwiseOnDemand]: 103/107 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2023-08-30 13:47:37,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 20 transitions, 141 flow [2023-08-30 13:47:37,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:47:37,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:47:37,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 251 transitions. [2023-08-30 13:47:37,233 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4691588785046729 [2023-08-30 13:47:37,234 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 251 transitions. [2023-08-30 13:47:37,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 251 transitions. [2023-08-30 13:47:37,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:47:37,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 251 transitions. [2023-08-30 13:47:37,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 50.2) internal successors, (251), 5 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:37,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:37,236 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:37,236 INFO L175 Difference]: Start difference. First operand has 41 places, 20 transitions, 102 flow. Second operand 5 states and 251 transitions. [2023-08-30 13:47:37,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 20 transitions, 141 flow [2023-08-30 13:47:37,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 20 transitions, 134 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 13:47:37,239 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2023-08-30 13:47:37,239 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2023-08-30 13:47:37,239 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 18 predicate places. [2023-08-30 13:47:37,239 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2023-08-30 13:47:37,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:47:37,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2023-08-30 13:47:37,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2023-08-30 13:47:37,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2023-08-30 13:47:37,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2023-08-30 13:47:37,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-08-30 13:47:37,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2023-08-30 13:47:37,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2023-08-30 13:47:37,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2023-08-30 13:47:37,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2023-08-30 13:47:37,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 13:47:37,244 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:47:37,249 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:47:37,249 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:47:37,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:47:37 BasicIcfg [2023-08-30 13:47:37,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:47:37,253 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:47:37,253 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:47:37,253 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:47:37,253 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:47:33" (3/4) ... [2023-08-30 13:47:37,255 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:47:37,261 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 13:47:37,265 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-08-30 13:47:37,265 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 13:47:37,265 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 13:47:37,292 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:47:37,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:47:37,294 INFO L158 Benchmark]: Toolchain (without parser) took 4931.57ms. Allocated memory was 71.3MB in the beginning and 109.1MB in the end (delta: 37.7MB). Free memory was 47.7MB in the beginning and 66.4MB in the end (delta: -18.8MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2023-08-30 13:47:37,295 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory is still 36.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:47:37,295 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.19ms. Allocated memory is still 71.3MB. Free memory was 47.4MB in the beginning and 47.0MB in the end (delta: 491.4kB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2023-08-30 13:47:37,295 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.10ms. Allocated memory is still 71.3MB. Free memory was 47.0MB in the beginning and 44.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:47:37,295 INFO L158 Benchmark]: Boogie Preprocessor took 44.29ms. Allocated memory is still 71.3MB. Free memory was 44.9MB in the beginning and 43.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:47:37,296 INFO L158 Benchmark]: RCFGBuilder took 349.53ms. Allocated memory is still 71.3MB. Free memory was 43.7MB in the beginning and 31.8MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 13:47:37,296 INFO L158 Benchmark]: TraceAbstraction took 3991.94ms. Allocated memory was 71.3MB in the beginning and 109.1MB in the end (delta: 37.7MB). Free memory was 31.1MB in the beginning and 68.5MB in the end (delta: -37.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:47:37,296 INFO L158 Benchmark]: Witness Printer took 41.16ms. Allocated memory is still 109.1MB. Free memory was 68.5MB in the beginning and 66.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:47:37,298 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory is still 36.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 449.19ms. Allocated memory is still 71.3MB. Free memory was 47.4MB in the beginning and 47.0MB in the end (delta: 491.4kB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.10ms. Allocated memory is still 71.3MB. Free memory was 47.0MB in the beginning and 44.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.29ms. Allocated memory is still 71.3MB. Free memory was 44.9MB in the beginning and 43.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 349.53ms. Allocated memory is still 71.3MB. Free memory was 43.7MB in the beginning and 31.8MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3991.94ms. Allocated memory was 71.3MB in the beginning and 109.1MB in the end (delta: 37.7MB). Free memory was 31.1MB in the beginning and 68.5MB in the end (delta: -37.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 41.16ms. Allocated memory is still 109.1MB. Free memory was 68.5MB in the beginning and 66.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2s, 58 PlacesBefore, 21 PlacesAfterwards, 56 TransitionsBefore, 18 TransitionsAfterwards, 442 CoEnabledTransitionPairs, 4 FixpointIterations, 21 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 50 TotalNumberOfCompositions, 859 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 619, independent: 547, independent conditional: 0, independent unconditional: 547, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 289, independent: 266, independent conditional: 0, independent unconditional: 266, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 619, independent: 281, independent conditional: 0, independent unconditional: 281, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 289, unknown conditional: 0, unknown unconditional: 289] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 71 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.9s, OverallIterations: 11, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 255 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 172 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 584 IncrementalHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 18 mSDtfsCounter, 584 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=7, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 385 SizeOfPredicates, 0 NumberOfNonLiveVariables, 191 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 251/284 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 13:47:37,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE