./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.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/13-privatized_25-struct_nr_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff --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 13:57:24,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:57:24,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:57:24,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:57:24,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:57:24,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:57:24,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:57:24,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:57:24,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:57:24,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:57:24,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:57:24,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:57:24,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:57:24,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:57:24,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:57:24,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:57:24,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:57:24,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:57:24,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:57:24,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:57:24,930 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:57:24,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:57:24,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:57:24,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:57:24,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:57:24,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:57:24,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:57:24,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:57:24,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:57:24,945 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:57:24,945 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:57:24,946 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:57:24,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:57:24,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:57:24,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:57:24,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:57:24,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:57:24,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:57:24,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:57:24,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:57:24,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:57:24,953 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:57:24,984 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:57:24,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:57:24,986 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:57:24,986 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:57:24,987 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:57:24,987 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:57:24,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:57:24,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:57:24,988 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:57:24,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:57:24,989 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:57:24,989 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:57:24,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:57:24,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:57:24,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:57:24,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:57:24,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:57:24,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:57:24,991 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:57:24,991 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:57:24,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:57:24,991 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:57:24,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:57:24,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:57:24,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:57:24,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:57:24,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:57:24,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:57:24,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:57:24,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:57:24,993 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:57:24,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:57:24,993 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:57:24,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:57:24,994 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:57:24,994 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:57:24,994 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:57:24,994 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:57:25,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:57:25,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:57:25,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:57:25,315 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:57:25,316 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:57:25,317 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2023-08-30 13:57:26,557 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:57:26,809 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:57:26,809 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2023-08-30 13:57:26,821 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3b0b7895/f16e19c04e61481286d44802fac42012/FLAG3ef66f685 [2023-08-30 13:57:26,833 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3b0b7895/f16e19c04e61481286d44802fac42012 [2023-08-30 13:57:26,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:57:26,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:57:26,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:57:26,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:57:26,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:57:26,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:57:26" (1/1) ... [2023-08-30 13:57:26,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e7064f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:57:26, skipping insertion in model container [2023-08-30 13:57:26,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:57:26" (1/1) ... [2023-08-30 13:57:26,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:57:26,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:57:27,014 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099] [2023-08-30 13:57:27,164 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:57:27,175 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:57:27,186 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099] [2023-08-30 13:57:27,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:57:27,272 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:57:27,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:57:27 WrapperNode [2023-08-30 13:57:27,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:57:27,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:57:27,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:57:27,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:57:27,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:57:27" (1/1) ... [2023-08-30 13:57:27,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:57:27" (1/1) ... [2023-08-30 13:57:27,336 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 80 [2023-08-30 13:57:27,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:57:27,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:57:27,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:57:27,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:57:27,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:57:27" (1/1) ... [2023-08-30 13:57:27,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:57:27" (1/1) ... [2023-08-30 13:57:27,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:57:27" (1/1) ... [2023-08-30 13:57:27,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:57:27" (1/1) ... [2023-08-30 13:57:27,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:57:27" (1/1) ... [2023-08-30 13:57:27,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:57:27" (1/1) ... [2023-08-30 13:57:27,375 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:57:27" (1/1) ... [2023-08-30 13:57:27,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:57:27" (1/1) ... [2023-08-30 13:57:27,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:57:27,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:57:27,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:57:27,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:57:27,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:57:27" (1/1) ... [2023-08-30 13:57:27,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:57:27,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:57:27,422 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 13:57:27,430 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 13:57:27,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 13:57:27,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:57:27,458 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 13:57:27,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:57:27,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:57:27,458 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 13:57:27,458 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 13:57:27,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:57:27,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:57:27,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:57:27,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:57:27,460 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 13:57:27,561 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:57:27,563 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:57:27,722 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:57:27,729 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:57:27,729 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:57:27,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:57:27 BoogieIcfgContainer [2023-08-30 13:57:27,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:57:27,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:57:27,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:57:27,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:57:27,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:57:26" (1/3) ... [2023-08-30 13:57:27,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548f7304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:57:27, skipping insertion in model container [2023-08-30 13:57:27,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:57:27" (2/3) ... [2023-08-30 13:57:27,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548f7304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:57:27, skipping insertion in model container [2023-08-30 13:57:27,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:57:27" (3/3) ... [2023-08-30 13:57:27,739 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i [2023-08-30 13:57:27,746 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:57:27,755 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:57:27,755 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 13:57:27,755 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:57:27,843 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 13:57:27,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 88 transitions, 184 flow [2023-08-30 13:57:27,927 INFO L130 PetriNetUnfolder]: 4/87 cut-off events. [2023-08-30 13:57:27,927 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 13:57:27,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 87 events. 4/87 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2023-08-30 13:57:27,933 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 88 transitions, 184 flow [2023-08-30 13:57:27,936 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 80 transitions, 163 flow [2023-08-30 13:57:27,939 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:57:27,952 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 80 transitions, 163 flow [2023-08-30 13:57:27,956 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 80 transitions, 163 flow [2023-08-30 13:57:27,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 80 transitions, 163 flow [2023-08-30 13:57:27,983 INFO L130 PetriNetUnfolder]: 4/80 cut-off events. [2023-08-30 13:57:27,984 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:57:27,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 80 events. 4/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2023-08-30 13:57:27,990 INFO L119 LiptonReduction]: Number of co-enabled transitions 1296 [2023-08-30 13:57:29,893 INFO L134 LiptonReduction]: Checked pairs total: 2372 [2023-08-30 13:57:29,894 INFO L136 LiptonReduction]: Total number of compositions: 75 [2023-08-30 13:57:29,914 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:57:29,924 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;@707ebedd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:57:29,925 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-30 13:57:29,932 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-30 13:57:29,933 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:57:29,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:57:29,934 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 13:57:29,934 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-08-30 13:57:29,940 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:57:29,940 INFO L85 PathProgramCache]: Analyzing trace with hash 9992438, now seen corresponding path program 1 times [2023-08-30 13:57:29,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:57:29,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818298053] [2023-08-30 13:57:29,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:57:29,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:57:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:57:30,176 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 13:57:30,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:57:30,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818298053] [2023-08-30 13:57:30,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818298053] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:57:30,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:57:30,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:57:30,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255438961] [2023-08-30 13:57:30,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:57:30,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:57:30,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:57:30,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:57:30,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:57:30,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 163 [2023-08-30 13:57:30,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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 13:57:30,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:57:30,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 163 [2023-08-30 13:57:30,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:57:30,386 INFO L130 PetriNetUnfolder]: 64/156 cut-off events. [2023-08-30 13:57:30,387 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:57:30,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 156 events. 64/156 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 567 event pairs, 23 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 303. Up to 96 conditions per place. [2023-08-30 13:57:30,389 INFO L137 encePairwiseOnDemand]: 155/163 looper letters, 24 selfloop transitions, 5 changer transitions 4/34 dead transitions. [2023-08-30 13:57:30,389 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 34 transitions, 137 flow [2023-08-30 13:57:30,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:57:30,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:57:30,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2023-08-30 13:57:30,401 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5214723926380368 [2023-08-30 13:57:30,402 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 255 transitions. [2023-08-30 13:57:30,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 255 transitions. [2023-08-30 13:57:30,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:57:30,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 255 transitions. [2023-08-30 13:57:30,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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 13:57:30,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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 13:57:30,412 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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 13:57:30,414 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 43 flow. Second operand 3 states and 255 transitions. [2023-08-30 13:57:30,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 34 transitions, 137 flow [2023-08-30 13:57:30,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 34 transitions, 136 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:57:30,417 INFO L231 Difference]: Finished difference. Result has 26 places, 21 transitions, 74 flow [2023-08-30 13:57:30,419 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=26, PETRI_TRANSITIONS=21} [2023-08-30 13:57:30,422 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 3 predicate places. [2023-08-30 13:57:30,422 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 21 transitions, 74 flow [2023-08-30 13:57:30,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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 13:57:30,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:57:30,423 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 13:57:30,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:57:30,424 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-08-30 13:57:30,424 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:57:30,424 INFO L85 PathProgramCache]: Analyzing trace with hash 9992439, now seen corresponding path program 1 times [2023-08-30 13:57:30,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:57:30,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577634754] [2023-08-30 13:57:30,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:57:30,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:57:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:57:30,484 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 13:57:30,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:57:30,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577634754] [2023-08-30 13:57:30,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577634754] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:57:30,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:57:30,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:57:30,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271957803] [2023-08-30 13:57:30,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:57:30,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:57:30,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:57:30,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:57:30,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:57:30,501 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 163 [2023-08-30 13:57:30,502 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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 13:57:30,502 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:57:30,502 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 163 [2023-08-30 13:57:30,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:57:30,556 INFO L130 PetriNetUnfolder]: 45/116 cut-off events. [2023-08-30 13:57:30,557 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2023-08-30 13:57:30,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 116 events. 45/116 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 395 event pairs, 22 based on Foata normal form. 3/119 useless extension candidates. Maximal degree in co-relation 274. Up to 95 conditions per place. [2023-08-30 13:57:30,559 INFO L137 encePairwiseOnDemand]: 158/163 looper letters, 22 selfloop transitions, 4 changer transitions 0/27 dead transitions. [2023-08-30 13:57:30,560 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 27 transitions, 142 flow [2023-08-30 13:57:30,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:57:30,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:57:30,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 243 transitions. [2023-08-30 13:57:30,563 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49693251533742333 [2023-08-30 13:57:30,564 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 243 transitions. [2023-08-30 13:57:30,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 243 transitions. [2023-08-30 13:57:30,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:57:30,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 243 transitions. [2023-08-30 13:57:30,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:57:30,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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 13:57:30,567 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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 13:57:30,567 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 74 flow. Second operand 3 states and 243 transitions. [2023-08-30 13:57:30,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 27 transitions, 142 flow [2023-08-30 13:57:30,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 27 transitions, 130 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:57:30,569 INFO L231 Difference]: Finished difference. Result has 25 places, 22 transitions, 84 flow [2023-08-30 13:57:30,569 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=25, PETRI_TRANSITIONS=22} [2023-08-30 13:57:30,570 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 2 predicate places. [2023-08-30 13:57:30,570 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 22 transitions, 84 flow [2023-08-30 13:57:30,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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 13:57:30,571 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:57:30,571 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:57:30,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:57:30,571 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-08-30 13:57:30,572 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:57:30,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1332414870, now seen corresponding path program 1 times [2023-08-30 13:57:30,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:57:30,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247257290] [2023-08-30 13:57:30,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:57:30,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:57:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:57:30,666 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 13:57:30,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:57:30,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247257290] [2023-08-30 13:57:30,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247257290] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:57:30,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:57:30,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:57:30,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155165673] [2023-08-30 13:57:30,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:57:30,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:57:30,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:57:30,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:57:30,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:57:30,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 163 [2023-08-30 13:57:30,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 22 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:57:30,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:57:30,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 163 [2023-08-30 13:57:30,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:57:30,715 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2023-08-30 13:57:30,715 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-30 13:57:30,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 24 events. 0/24 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 11/35 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2023-08-30 13:57:30,716 INFO L137 encePairwiseOnDemand]: 160/163 looper letters, 14 selfloop transitions, 3 changer transitions 0/18 dead transitions. [2023-08-30 13:57:30,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 18 transitions, 98 flow [2023-08-30 13:57:30,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:57:30,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:57:30,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 237 transitions. [2023-08-30 13:57:30,717 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48466257668711654 [2023-08-30 13:57:30,718 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 237 transitions. [2023-08-30 13:57:30,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 237 transitions. [2023-08-30 13:57:30,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:57:30,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 237 transitions. [2023-08-30 13:57:30,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 13:57:30,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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 13:57:30,721 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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 13:57:30,721 INFO L175 Difference]: Start difference. First operand has 25 places, 22 transitions, 84 flow. Second operand 3 states and 237 transitions. [2023-08-30 13:57:30,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 18 transitions, 98 flow [2023-08-30 13:57:30,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 92 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 13:57:30,722 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 64 flow [2023-08-30 13:57:30,722 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2023-08-30 13:57:30,723 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 3 predicate places. [2023-08-30 13:57:30,723 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 64 flow [2023-08-30 13:57:30,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:57:30,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:57:30,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:57:30,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:57:30,724 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-08-30 13:57:30,725 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:57:30,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1649281607, now seen corresponding path program 1 times [2023-08-30 13:57:30,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:57:30,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814846683] [2023-08-30 13:57:30,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:57:30,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:57:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:57:30,801 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 13:57:30,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:57:30,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814846683] [2023-08-30 13:57:30,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814846683] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:57:30,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:57:30,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:57:30,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761115007] [2023-08-30 13:57:30,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:57:30,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:57:30,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:57:30,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:57:30,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:57:30,855 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 163 [2023-08-30 13:57:30,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 64 flow. Second operand has 6 states, 6 states have (on average 65.33333333333333) internal successors, (392), 6 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:57:30,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:57:30,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 163 [2023-08-30 13:57:30,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:57:30,919 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2023-08-30 13:57:30,919 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 13:57:30,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 23 events. 0/23 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2023-08-30 13:57:30,920 INFO L137 encePairwiseOnDemand]: 155/163 looper letters, 16 selfloop transitions, 7 changer transitions 0/23 dead transitions. [2023-08-30 13:57:30,920 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 23 transitions, 122 flow [2023-08-30 13:57:30,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 13:57:30,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 13:57:30,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 536 transitions. [2023-08-30 13:57:30,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4110429447852761 [2023-08-30 13:57:30,924 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 536 transitions. [2023-08-30 13:57:30,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 536 transitions. [2023-08-30 13:57:30,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:57:30,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 536 transitions. [2023-08-30 13:57:30,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 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 13:57:30,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 163.0) internal successors, (1467), 9 states have internal predecessors, (1467), 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 13:57:30,930 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 163.0) internal successors, (1467), 9 states have internal predecessors, (1467), 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 13:57:30,930 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 64 flow. Second operand 8 states and 536 transitions. [2023-08-30 13:57:30,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 23 transitions, 122 flow [2023-08-30 13:57:30,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 23 transitions, 118 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:57:30,932 INFO L231 Difference]: Finished difference. Result has 36 places, 21 transitions, 99 flow [2023-08-30 13:57:30,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=99, PETRI_PLACES=36, PETRI_TRANSITIONS=21} [2023-08-30 13:57:30,932 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 13 predicate places. [2023-08-30 13:57:30,933 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 21 transitions, 99 flow [2023-08-30 13:57:30,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.33333333333333) internal successors, (392), 6 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:57:30,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:57:30,933 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:57:30,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:57:30,934 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-08-30 13:57:30,934 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:57:30,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1649281533, now seen corresponding path program 1 times [2023-08-30 13:57:30,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:57:30,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684871551] [2023-08-30 13:57:30,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:57:30,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:57:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:57:30,982 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 13:57:30,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:57:30,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684871551] [2023-08-30 13:57:30,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684871551] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:57:30,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:57:30,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:57:30,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508442304] [2023-08-30 13:57:30,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:57:30,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:57:30,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:57:30,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:57:30,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:57:31,044 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 163 [2023-08-30 13:57:31,045 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 21 transitions, 99 flow. Second operand has 6 states, 6 states have (on average 65.33333333333333) internal successors, (392), 6 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:57:31,045 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:57:31,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 163 [2023-08-30 13:57:31,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:57:31,103 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2023-08-30 13:57:31,103 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-08-30 13:57:31,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 22 events. 0/22 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2023-08-30 13:57:31,104 INFO L137 encePairwiseOnDemand]: 155/163 looper letters, 13 selfloop transitions, 4 changer transitions 5/22 dead transitions. [2023-08-30 13:57:31,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 22 transitions, 144 flow [2023-08-30 13:57:31,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:57:31,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:57:31,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 471 transitions. [2023-08-30 13:57:31,106 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4127957931638913 [2023-08-30 13:57:31,106 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 471 transitions. [2023-08-30 13:57:31,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 471 transitions. [2023-08-30 13:57:31,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:57:31,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 471 transitions. [2023-08-30 13:57:31,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 67.28571428571429) internal successors, (471), 7 states have internal predecessors, (471), 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 13:57:31,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 163.0) internal successors, (1304), 8 states have internal predecessors, (1304), 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 13:57:31,110 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 163.0) internal successors, (1304), 8 states have internal predecessors, (1304), 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 13:57:31,110 INFO L175 Difference]: Start difference. First operand has 36 places, 21 transitions, 99 flow. Second operand 7 states and 471 transitions. [2023-08-30 13:57:31,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 22 transitions, 144 flow [2023-08-30 13:57:31,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 22 transitions, 128 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 13:57:31,112 INFO L231 Difference]: Finished difference. Result has 38 places, 17 transitions, 70 flow [2023-08-30 13:57:31,112 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=32, 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=7, PETRI_FLOW=70, PETRI_PLACES=38, PETRI_TRANSITIONS=17} [2023-08-30 13:57:31,113 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 15 predicate places. [2023-08-30 13:57:31,113 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 17 transitions, 70 flow [2023-08-30 13:57:31,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.33333333333333) internal successors, (392), 6 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:57:31,113 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:57:31,113 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:57:31,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 13:57:31,114 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-08-30 13:57:31,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:57:31,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1319873243, now seen corresponding path program 1 times [2023-08-30 13:57:31,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:57:31,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839740103] [2023-08-30 13:57:31,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:57:31,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:57:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:57:31,160 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 13:57:31,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:57:31,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839740103] [2023-08-30 13:57:31,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839740103] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:57:31,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:57:31,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:57:31,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506765782] [2023-08-30 13:57:31,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:57:31,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:57:31,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:57:31,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:57:31,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:57:31,185 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 163 [2023-08-30 13:57:31,185 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 17 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 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 13:57:31,185 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:57:31,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 163 [2023-08-30 13:57:31,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:57:31,216 INFO L130 PetriNetUnfolder]: 0/17 cut-off events. [2023-08-30 13:57:31,217 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-30 13:57:31,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 17 events. 0/17 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2023-08-30 13:57:31,217 INFO L137 encePairwiseOnDemand]: 159/163 looper letters, 12 selfloop transitions, 3 changer transitions 1/17 dead transitions. [2023-08-30 13:57:31,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 17 transitions, 99 flow [2023-08-30 13:57:31,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:57:31,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:57:31,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 372 transitions. [2023-08-30 13:57:31,219 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.456441717791411 [2023-08-30 13:57:31,219 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 372 transitions. [2023-08-30 13:57:31,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 372 transitions. [2023-08-30 13:57:31,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:57:31,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 372 transitions. [2023-08-30 13:57:31,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 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 13:57:31,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 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 13:57:31,222 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 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 13:57:31,223 INFO L175 Difference]: Start difference. First operand has 38 places, 17 transitions, 70 flow. Second operand 5 states and 372 transitions. [2023-08-30 13:57:31,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 17 transitions, 99 flow [2023-08-30 13:57:31,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 17 transitions, 86 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-08-30 13:57:31,225 INFO L231 Difference]: Finished difference. Result has 30 places, 16 transitions, 57 flow [2023-08-30 13:57:31,225 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=57, PETRI_PLACES=30, PETRI_TRANSITIONS=16} [2023-08-30 13:57:31,226 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 7 predicate places. [2023-08-30 13:57:31,227 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 16 transitions, 57 flow [2023-08-30 13:57:31,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 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 13:57:31,227 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:57:31,227 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:57:31,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 13:57:31,229 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-08-30 13:57:31,229 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:57:31,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1319873242, now seen corresponding path program 1 times [2023-08-30 13:57:31,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:57:31,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407638958] [2023-08-30 13:57:31,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:57:31,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:57:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:57:31,303 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 13:57:31,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:57:31,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407638958] [2023-08-30 13:57:31,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407638958] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:57:31,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:57:31,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:57:31,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154284146] [2023-08-30 13:57:31,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:57:31,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:57:31,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:57:31,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:57:31,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:57:31,324 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 163 [2023-08-30 13:57:31,325 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 16 transitions, 57 flow. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 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 13:57:31,325 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:57:31,325 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 163 [2023-08-30 13:57:31,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:57:31,349 INFO L130 PetriNetUnfolder]: 0/16 cut-off events. [2023-08-30 13:57:31,350 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 13:57:31,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 16 events. 0/16 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 1/17 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2023-08-30 13:57:31,350 INFO L137 encePairwiseOnDemand]: 157/163 looper letters, 9 selfloop transitions, 5 changer transitions 1/16 dead transitions. [2023-08-30 13:57:31,350 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 16 transitions, 85 flow [2023-08-30 13:57:31,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:57:31,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:57:31,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 371 transitions. [2023-08-30 13:57:31,354 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45521472392638035 [2023-08-30 13:57:31,354 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 371 transitions. [2023-08-30 13:57:31,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 371 transitions. [2023-08-30 13:57:31,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:57:31,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 371 transitions. [2023-08-30 13:57:31,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 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 13:57:31,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 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 13:57:31,367 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 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 13:57:31,368 INFO L175 Difference]: Start difference. First operand has 30 places, 16 transitions, 57 flow. Second operand 5 states and 371 transitions. [2023-08-30 13:57:31,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 16 transitions, 85 flow [2023-08-30 13:57:31,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 16 transitions, 75 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-30 13:57:31,369 INFO L231 Difference]: Finished difference. Result has 27 places, 15 transitions, 52 flow [2023-08-30 13:57:31,369 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=52, PETRI_PLACES=27, PETRI_TRANSITIONS=15} [2023-08-30 13:57:31,370 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 4 predicate places. [2023-08-30 13:57:31,370 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 15 transitions, 52 flow [2023-08-30 13:57:31,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 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 13:57:31,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:57:31,370 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:57:31,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 13:57:31,371 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-08-30 13:57:31,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:57:31,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1749671246, now seen corresponding path program 1 times [2023-08-30 13:57:31,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:57:31,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701070978] [2023-08-30 13:57:31,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:57:31,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:57:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:57:31,442 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 13:57:31,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:57:31,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701070978] [2023-08-30 13:57:31,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701070978] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:57:31,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:57:31,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 13:57:31,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778781422] [2023-08-30 13:57:31,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:57:31,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:57:31,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:57:31,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:57:31,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:57:31,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 163 [2023-08-30 13:57:31,497 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 15 transitions, 52 flow. Second operand has 7 states, 7 states have (on average 64.0) internal successors, (448), 7 states have internal predecessors, (448), 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 13:57:31,498 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:57:31,498 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 163 [2023-08-30 13:57:31,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:57:31,544 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2023-08-30 13:57:31,544 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:57:31,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 15 events. 0/15 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2023-08-30 13:57:31,545 INFO L137 encePairwiseOnDemand]: 157/163 looper letters, 9 selfloop transitions, 5 changer transitions 1/15 dead transitions. [2023-08-30 13:57:31,545 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 15 transitions, 82 flow [2023-08-30 13:57:31,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:57:31,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:57:31,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 450 transitions. [2023-08-30 13:57:31,547 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3943908851884312 [2023-08-30 13:57:31,547 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 450 transitions. [2023-08-30 13:57:31,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 450 transitions. [2023-08-30 13:57:31,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:57:31,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 450 transitions. [2023-08-30 13:57:31,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 64.28571428571429) internal successors, (450), 7 states have internal predecessors, (450), 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 13:57:31,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 163.0) internal successors, (1304), 8 states have internal predecessors, (1304), 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 13:57:31,551 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 163.0) internal successors, (1304), 8 states have internal predecessors, (1304), 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 13:57:31,551 INFO L175 Difference]: Start difference. First operand has 27 places, 15 transitions, 52 flow. Second operand 7 states and 450 transitions. [2023-08-30 13:57:31,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 15 transitions, 82 flow [2023-08-30 13:57:31,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 15 transitions, 72 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 13:57:31,552 INFO L231 Difference]: Finished difference. Result has 27 places, 14 transitions, 49 flow [2023-08-30 13:57:31,552 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=49, PETRI_PLACES=27, PETRI_TRANSITIONS=14} [2023-08-30 13:57:31,553 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 4 predicate places. [2023-08-30 13:57:31,553 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 14 transitions, 49 flow [2023-08-30 13:57:31,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.0) internal successors, (448), 7 states have internal predecessors, (448), 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 13:57:31,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:57:31,553 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:57:31,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 13:57:31,554 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-08-30 13:57:31,554 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:57:31,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1749671320, now seen corresponding path program 1 times [2023-08-30 13:57:31,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:57:31,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304629928] [2023-08-30 13:57:31,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:57:31,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:57:31,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:57:31,614 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 13:57:31,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:57:31,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304629928] [2023-08-30 13:57:31,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304629928] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:57:31,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:57:31,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 13:57:31,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022991624] [2023-08-30 13:57:31,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:57:31,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:57:31,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:57:31,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:57:31,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:57:31,686 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 163 [2023-08-30 13:57:31,687 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 14 transitions, 49 flow. Second operand has 7 states, 7 states have (on average 64.0) internal successors, (448), 7 states have internal predecessors, (448), 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 13:57:31,687 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:57:31,687 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 163 [2023-08-30 13:57:31,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:57:31,749 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2023-08-30 13:57:31,750 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 13:57:31,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 14 events. 0/14 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-08-30 13:57:31,750 INFO L137 encePairwiseOnDemand]: 155/163 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2023-08-30 13:57:31,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 14 transitions, 77 flow [2023-08-30 13:57:31,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 13:57:31,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 13:57:31,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 511 transitions. [2023-08-30 13:57:31,751 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3918711656441718 [2023-08-30 13:57:31,751 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 511 transitions. [2023-08-30 13:57:31,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 511 transitions. [2023-08-30 13:57:31,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:57:31,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 511 transitions. [2023-08-30 13:57:31,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 63.875) internal successors, (511), 8 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:57:31,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 163.0) internal successors, (1467), 9 states have internal predecessors, (1467), 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 13:57:31,755 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 163.0) internal successors, (1467), 9 states have internal predecessors, (1467), 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 13:57:31,755 INFO L175 Difference]: Start difference. First operand has 27 places, 14 transitions, 49 flow. Second operand 8 states and 511 transitions. [2023-08-30 13:57:31,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 14 transitions, 77 flow [2023-08-30 13:57:31,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 14 transitions, 70 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 13:57:31,755 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2023-08-30 13:57:31,756 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2023-08-30 13:57:31,756 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 5 predicate places. [2023-08-30 13:57:31,756 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2023-08-30 13:57:31,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.0) internal successors, (448), 7 states have internal predecessors, (448), 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 13:57:31,759 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2023-08-30 13:57:31,759 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2023-08-30 13:57:31,759 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2023-08-30 13:57:31,759 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2023-08-30 13:57:31,759 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-08-30 13:57:31,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 13:57:31,760 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:57:31,762 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:57:31,762 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:57:31,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:57:31 BasicIcfg [2023-08-30 13:57:31,766 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:57:31,766 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:57:31,766 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:57:31,766 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:57:31,766 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:57:27" (3/4) ... [2023-08-30 13:57:31,769 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:57:31,774 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 13:57:31,778 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-08-30 13:57:31,778 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 13:57:31,778 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 13:57:31,778 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 13:57:31,814 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:57:31,815 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:57:31,815 INFO L158 Benchmark]: Toolchain (without parser) took 4969.00ms. Allocated memory was 67.1MB in the beginning and 109.1MB in the end (delta: 41.9MB). Free memory was 47.9MB in the beginning and 72.2MB in the end (delta: -24.3MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2023-08-30 13:57:31,816 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory was 44.3MB in the beginning and 44.2MB in the end (delta: 49.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:57:31,816 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.53ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 47.7MB in the beginning and 68.5MB in the end (delta: -20.8MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2023-08-30 13:57:31,816 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.15ms. Allocated memory is still 90.2MB. 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 13:57:31,817 INFO L158 Benchmark]: Boogie Preprocessor took 47.53ms. Allocated memory is still 90.2MB. Free memory was 66.4MB in the beginning and 65.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:57:31,817 INFO L158 Benchmark]: RCFGBuilder took 345.44ms. Allocated memory is still 90.2MB. Free memory was 65.0MB in the beginning and 51.7MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 13:57:31,817 INFO L158 Benchmark]: TraceAbstraction took 4032.41ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 51.1MB in the beginning and 75.5MB in the end (delta: -24.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:57:31,818 INFO L158 Benchmark]: Witness Printer took 48.98ms. Allocated memory is still 109.1MB. Free memory was 75.5MB in the beginning and 72.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 13:57:31,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory was 44.3MB in the beginning and 44.2MB in the end (delta: 49.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 425.53ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 47.7MB in the beginning and 68.5MB in the end (delta: -20.8MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.15ms. Allocated memory is still 90.2MB. 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. * Boogie Preprocessor took 47.53ms. Allocated memory is still 90.2MB. Free memory was 66.4MB in the beginning and 65.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 345.44ms. Allocated memory is still 90.2MB. Free memory was 65.0MB in the beginning and 51.7MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4032.41ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 51.1MB in the beginning and 75.5MB in the end (delta: -24.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 48.98ms. Allocated memory is still 109.1MB. Free memory was 75.5MB in the beginning and 72.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 80 PlacesBefore, 23 PlacesAfterwards, 80 TransitionsBefore, 20 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 75 TotalNumberOfCompositions, 2372 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1365, independent: 1223, independent conditional: 0, independent unconditional: 1223, dependent: 142, dependent conditional: 0, dependent unconditional: 142, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 733, independent: 697, independent conditional: 0, independent unconditional: 697, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1365, independent: 526, independent conditional: 0, independent unconditional: 526, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 733, unknown conditional: 0, unknown unconditional: 733] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: 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, 109 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.9s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 551 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 349 mSDsluCounter, 401 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 334 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 862 IncrementalHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 67 mSDtfsCounter, 862 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=4, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 13:57:31,840 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