./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c -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 908fbcc4d3742ed9abcae99df082df11caf0d6bd4e74389f515555cf6e492354 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 07:29:02,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 07:29:02,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 07:29:02,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 07:29:02,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 07:29:02,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 07:29:02,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 07:29:02,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 07:29:02,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 07:29:03,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 07:29:03,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 07:29:03,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 07:29:03,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 07:29:03,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 07:29:03,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 07:29:03,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 07:29:03,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 07:29:03,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 07:29:03,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 07:29:03,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 07:29:03,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 07:29:03,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 07:29:03,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 07:29:03,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 07:29:03,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 07:29:03,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 07:29:03,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 07:29:03,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 07:29:03,042 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 07:29:03,043 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 07:29:03,043 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 07:29:03,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 07:29:03,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 07:29:03,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 07:29:03,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 07:29:03,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 07:29:03,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 07:29:03,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 07:29:03,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 07:29:03,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 07:29:03,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 07:29:03,055 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 07:29:03,086 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 07:29:03,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 07:29:03,088 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 07:29:03,088 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 07:29:03,089 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 07:29:03,089 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 07:29:03,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 07:29:03,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 07:29:03,090 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 07:29:03,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 07:29:03,091 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 07:29:03,091 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 07:29:03,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 07:29:03,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 07:29:03,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 07:29:03,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 07:29:03,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 07:29:03,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 07:29:03,092 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 07:29:03,093 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 07:29:03,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 07:29:03,093 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 07:29:03,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 07:29:03,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 07:29:03,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 07:29:03,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 07:29:03,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 07:29:03,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 07:29:03,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 07:29:03,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 07:29:03,095 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 07:29:03,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 07:29:03,095 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 07:29:03,095 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 07:29:03,096 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 07:29:03,096 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 07:29:03,096 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 07:29:03,096 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 908fbcc4d3742ed9abcae99df082df11caf0d6bd4e74389f515555cf6e492354 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 07:29:03,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 07:29:03,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 07:29:03,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 07:29:03,401 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 07:29:03,402 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 07:29:03,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c [2023-09-01 07:29:04,599 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 07:29:04,838 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 07:29:04,839 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c [2023-09-01 07:29:04,855 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9423e93fd/3f250b0ed4dc437f873d71eb7133f672/FLAG634678aa5 [2023-09-01 07:29:04,874 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9423e93fd/3f250b0ed4dc437f873d71eb7133f672 [2023-09-01 07:29:04,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 07:29:04,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 07:29:04,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 07:29:04,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 07:29:04,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 07:29:04,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 07:29:04" (1/1) ... [2023-09-01 07:29:04,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fcb3076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:29:04, skipping insertion in model container [2023-09-01 07:29:04,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 07:29:04" (1/1) ... [2023-09-01 07:29:04,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 07:29:04,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 07:29:05,125 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c[3856,3869] [2023-09-01 07:29:05,136 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 07:29:05,147 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 07:29:05,186 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c[3856,3869] [2023-09-01 07:29:05,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 07:29:05,218 INFO L208 MainTranslator]: Completed translation [2023-09-01 07:29:05,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:29:05 WrapperNode [2023-09-01 07:29:05,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 07:29:05,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 07:29:05,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 07:29:05,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 07:29:05,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:29:05" (1/1) ... [2023-09-01 07:29:05,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:29:05" (1/1) ... [2023-09-01 07:29:05,316 INFO L138 Inliner]: procedures = 25, calls = 34, calls flagged for inlining = 14, calls inlined = 16, statements flattened = 263 [2023-09-01 07:29:05,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 07:29:05,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 07:29:05,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 07:29:05,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 07:29:05,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:29:05" (1/1) ... [2023-09-01 07:29:05,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:29:05" (1/1) ... [2023-09-01 07:29:05,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:29:05" (1/1) ... [2023-09-01 07:29:05,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:29:05" (1/1) ... [2023-09-01 07:29:05,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:29:05" (1/1) ... [2023-09-01 07:29:05,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:29:05" (1/1) ... [2023-09-01 07:29:05,367 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:29:05" (1/1) ... [2023-09-01 07:29:05,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:29:05" (1/1) ... [2023-09-01 07:29:05,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 07:29:05,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 07:29:05,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 07:29:05,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 07:29:05,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:29:05" (1/1) ... [2023-09-01 07:29:05,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 07:29:05,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:29:05,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 07:29:05,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 07:29:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 07:29:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 07:29:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 07:29:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 07:29:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-01 07:29:05,452 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-01 07:29:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-01 07:29:05,452 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-01 07:29:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 07:29:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-01 07:29:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 07:29:05,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 07:29:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 07:29:05,455 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 07:29:05,584 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 07:29:05,587 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 07:29:05,986 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 07:29:05,996 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 07:29:05,996 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-09-01 07:29:05,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:29:05 BoogieIcfgContainer [2023-09-01 07:29:05,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 07:29:06,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 07:29:06,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 07:29:06,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 07:29:06,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 07:29:04" (1/3) ... [2023-09-01 07:29:06,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615d0483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 07:29:06, skipping insertion in model container [2023-09-01 07:29:06,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:29:05" (2/3) ... [2023-09-01 07:29:06,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615d0483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 07:29:06, skipping insertion in model container [2023-09-01 07:29:06,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:29:05" (3/3) ... [2023-09-01 07:29:06,006 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-symm.wvr.c [2023-09-01 07:29:06,013 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 07:29:06,021 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 07:29:06,021 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-09-01 07:29:06,021 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 07:29:06,149 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-01 07:29:06,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 302 places, 318 transitions, 652 flow [2023-09-01 07:29:06,299 INFO L130 PetriNetUnfolder]: 23/316 cut-off events. [2023-09-01 07:29:06,299 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 07:29:06,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 316 events. 23/316 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 698 event pairs, 0 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2023-09-01 07:29:06,309 INFO L82 GeneralOperation]: Start removeDead. Operand has 302 places, 318 transitions, 652 flow [2023-09-01 07:29:06,316 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 286 places, 301 transitions, 614 flow [2023-09-01 07:29:06,319 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 07:29:06,327 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 286 places, 301 transitions, 614 flow [2023-09-01 07:29:06,329 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 286 places, 301 transitions, 614 flow [2023-09-01 07:29:06,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 286 places, 301 transitions, 614 flow [2023-09-01 07:29:06,391 INFO L130 PetriNetUnfolder]: 22/301 cut-off events. [2023-09-01 07:29:06,391 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 07:29:06,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 301 events. 22/301 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 691 event pairs, 0 based on Foata normal form. 0/260 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2023-09-01 07:29:06,401 INFO L119 LiptonReduction]: Number of co-enabled transitions 18512 [2023-09-01 07:29:19,288 INFO L134 LiptonReduction]: Checked pairs total: 18426 [2023-09-01 07:29:19,288 INFO L136 LiptonReduction]: Total number of compositions: 387 [2023-09-01 07:29:19,307 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 07:29:19,313 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@34205c9d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 07:29:19,313 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-09-01 07:29:19,315 INFO L130 PetriNetUnfolder]: 1/3 cut-off events. [2023-09-01 07:29:19,315 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 07:29:19,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:29:19,316 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-09-01 07:29:19,320 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-09-01 07:29:19,326 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:29:19,326 INFO L85 PathProgramCache]: Analyzing trace with hash 42511, now seen corresponding path program 1 times [2023-09-01 07:29:19,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:29:19,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564577509] [2023-09-01 07:29:19,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:19,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:29:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:19,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:29:19,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:29:19,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564577509] [2023-09-01 07:29:19,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564577509] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:29:19,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:29:19,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:29:19,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105031299] [2023-09-01 07:29:19,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:29:19,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:29:19,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:29:19,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:29:19,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:29:19,745 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 705 [2023-09-01 07:29:19,754 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:19,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:29:19,755 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 705 [2023-09-01 07:29:19,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:29:19,981 INFO L130 PetriNetUnfolder]: 451/779 cut-off events. [2023-09-01 07:29:19,981 INFO L131 PetriNetUnfolder]: For 58/58 co-relation queries the response was YES. [2023-09-01 07:29:19,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1616 conditions, 779 events. 451/779 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 3627 event pairs, 378 based on Foata normal form. 2/345 useless extension candidates. Maximal degree in co-relation 720. Up to 392 conditions per place. [2023-09-01 07:29:19,988 INFO L137 encePairwiseOnDemand]: 693/705 looper letters, 49 selfloop transitions, 2 changer transitions 2/53 dead transitions. [2023-09-01 07:29:19,988 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 53 transitions, 236 flow [2023-09-01 07:29:19,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:29:19,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:29:20,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 953 transitions. [2023-09-01 07:29:20,008 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45059101654846334 [2023-09-01 07:29:20,010 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 953 transitions. [2023-09-01 07:29:20,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 953 transitions. [2023-09-01 07:29:20,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:29:20,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 953 transitions. [2023-09-01 07:29:20,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 317.6666666666667) internal successors, (953), 3 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:20,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:20,037 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:20,039 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 84 flow. Second operand 3 states and 953 transitions. [2023-09-01 07:29:20,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 53 transitions, 236 flow [2023-09-01 07:29:20,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 53 transitions, 220 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 07:29:20,045 INFO L231 Difference]: Finished difference. Result has 31 places, 28 transitions, 71 flow [2023-09-01 07:29:20,046 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=31, PETRI_TRANSITIONS=28} [2023-09-01 07:29:20,049 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -9 predicate places. [2023-09-01 07:29:20,049 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 28 transitions, 71 flow [2023-09-01 07:29:20,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:20,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:29:20,050 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:29:20,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 07:29:20,051 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-09-01 07:29:20,051 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:29:20,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1321106, now seen corresponding path program 1 times [2023-09-01 07:29:20,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:29:20,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862584751] [2023-09-01 07:29:20,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:20,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:29:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:20,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:29:20,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:29:20,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862584751] [2023-09-01 07:29:20,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862584751] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 07:29:20,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405508471] [2023-09-01 07:29:20,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:20,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:29:20,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:29:20,169 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-01 07:29:20,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-09-01 07:29:20,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:20,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjunts are in the unsatisfiable core [2023-09-01 07:29:20,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 07:29:20,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:29:20,337 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 07:29:20,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405508471] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:29:20,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-01 07:29:20,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-09-01 07:29:20,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23378888] [2023-09-01 07:29:20,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:29:20,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 07:29:20,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:29:20,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 07:29:20,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-09-01 07:29:20,352 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 705 [2023-09-01 07:29:20,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 28 transitions, 71 flow. Second operand has 4 states, 4 states have (on average 294.75) internal successors, (1179), 4 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:20,354 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:29:20,354 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 705 [2023-09-01 07:29:20,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:29:20,571 INFO L130 PetriNetUnfolder]: 451/776 cut-off events. [2023-09-01 07:29:20,571 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-09-01 07:29:20,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1579 conditions, 776 events. 451/776 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 3614 event pairs, 378 based on Foata normal form. 0/343 useless extension candidates. Maximal degree in co-relation 787. Up to 389 conditions per place. [2023-09-01 07:29:20,575 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 48 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2023-09-01 07:29:20,575 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 50 transitions, 216 flow [2023-09-01 07:29:20,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 07:29:20,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 07:29:20,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1227 transitions. [2023-09-01 07:29:20,579 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4351063829787234 [2023-09-01 07:29:20,580 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1227 transitions. [2023-09-01 07:29:20,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1227 transitions. [2023-09-01 07:29:20,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:29:20,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1227 transitions. [2023-09-01 07:29:20,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:20,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 705.0) internal successors, (3525), 5 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:20,599 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 705.0) internal successors, (3525), 5 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:20,599 INFO L175 Difference]: Start difference. First operand has 31 places, 28 transitions, 71 flow. Second operand 4 states and 1227 transitions. [2023-09-01 07:29:20,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 50 transitions, 216 flow [2023-09-01 07:29:20,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 50 transitions, 214 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:29:20,602 INFO L231 Difference]: Finished difference. Result has 31 places, 27 transitions, 69 flow [2023-09-01 07:29:20,602 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=69, PETRI_PLACES=31, PETRI_TRANSITIONS=27} [2023-09-01 07:29:20,603 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -9 predicate places. [2023-09-01 07:29:20,603 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 27 transitions, 69 flow [2023-09-01 07:29:20,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 294.75) internal successors, (1179), 4 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:20,604 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:29:20,604 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:29:20,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-09-01 07:29:20,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:29:20,817 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-09-01 07:29:20,817 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:29:20,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1321107, now seen corresponding path program 1 times [2023-09-01 07:29:20,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:29:20,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955072047] [2023-09-01 07:29:20,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:20,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:29:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:20,876 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:29:20,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:29:20,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955072047] [2023-09-01 07:29:20,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955072047] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 07:29:20,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464132127] [2023-09-01 07:29:20,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:20,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:29:20,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:29:20,881 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-01 07:29:20,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-09-01 07:29:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:20,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjunts are in the unsatisfiable core [2023-09-01 07:29:20,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 07:29:20,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:29:20,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-09-01 07:29:21,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:29:21,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464132127] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-01 07:29:21,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-01 07:29:21,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-09-01 07:29:21,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534118706] [2023-09-01 07:29:21,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-01 07:29:21,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 07:29:21,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:29:21,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 07:29:21,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-09-01 07:29:21,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 705 [2023-09-01 07:29:21,040 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 69 flow. Second operand has 7 states, 7 states have (on average 295.14285714285717) internal successors, (2066), 7 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:21,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:29:21,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 705 [2023-09-01 07:29:21,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:29:21,483 INFO L130 PetriNetUnfolder]: 1126/1937 cut-off events. [2023-09-01 07:29:21,483 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2023-09-01 07:29:21,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3932 conditions, 1937 events. 1126/1937 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 10585 event pairs, 945 based on Foata normal form. 0/856 useless extension candidates. Maximal degree in co-relation 3139. Up to 390 conditions per place. [2023-09-01 07:29:21,492 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 117 selfloop transitions, 5 changer transitions 0/122 dead transitions. [2023-09-01 07:29:21,492 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 122 transitions, 521 flow [2023-09-01 07:29:21,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 07:29:21,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 07:29:21,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1889 transitions. [2023-09-01 07:29:21,498 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4465721040189125 [2023-09-01 07:29:21,498 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1889 transitions. [2023-09-01 07:29:21,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1889 transitions. [2023-09-01 07:29:21,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:29:21,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1889 transitions. [2023-09-01 07:29:21,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 314.8333333333333) internal successors, (1889), 6 states have internal predecessors, (1889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:21,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 705.0) internal successors, (4935), 7 states have internal predecessors, (4935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:21,513 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 705.0) internal successors, (4935), 7 states have internal predecessors, (4935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:21,513 INFO L175 Difference]: Start difference. First operand has 31 places, 27 transitions, 69 flow. Second operand 6 states and 1889 transitions. [2023-09-01 07:29:21,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 122 transitions, 521 flow [2023-09-01 07:29:21,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 122 transitions, 518 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 07:29:21,517 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 102 flow [2023-09-01 07:29:21,517 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=102, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2023-09-01 07:29:21,518 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2023-09-01 07:29:21,519 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 102 flow [2023-09-01 07:29:21,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 295.14285714285717) internal successors, (2066), 7 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:21,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:29:21,521 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 07:29:21,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-09-01 07:29:21,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-09-01 07:29:21,729 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-09-01 07:29:21,729 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:29:21,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1267539662, now seen corresponding path program 1 times [2023-09-01 07:29:21,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:29:21,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624057571] [2023-09-01 07:29:21,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:21,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:29:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:21,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:29:21,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:29:21,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624057571] [2023-09-01 07:29:21,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624057571] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:29:21,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:29:21,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:29:21,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712948688] [2023-09-01 07:29:21,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:29:21,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:29:21,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:29:21,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:29:21,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:29:21,823 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 705 [2023-09-01 07:29:21,825 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 296.6666666666667) internal successors, (890), 3 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:21,825 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:29:21,825 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 705 [2023-09-01 07:29:21,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:29:22,069 INFO L130 PetriNetUnfolder]: 881/1522 cut-off events. [2023-09-01 07:29:22,069 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2023-09-01 07:29:22,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3111 conditions, 1522 events. 881/1522 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 8124 event pairs, 720 based on Foata normal form. 0/722 useless extension candidates. Maximal degree in co-relation 2481. Up to 1522 conditions per place. [2023-09-01 07:29:22,076 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 27 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2023-09-01 07:29:22,077 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 28 transitions, 154 flow [2023-09-01 07:29:22,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:29:22,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:29:22,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 911 transitions. [2023-09-01 07:29:22,080 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4307328605200946 [2023-09-01 07:29:22,080 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 911 transitions. [2023-09-01 07:29:22,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 911 transitions. [2023-09-01 07:29:22,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:29:22,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 911 transitions. [2023-09-01 07:29:22,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:22,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:22,088 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:22,088 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 102 flow. Second operand 3 states and 911 transitions. [2023-09-01 07:29:22,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 28 transitions, 154 flow [2023-09-01 07:29:22,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 28 transitions, 146 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-09-01 07:29:22,091 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 92 flow [2023-09-01 07:29:22,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2023-09-01 07:29:22,093 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2023-09-01 07:29:22,093 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 92 flow [2023-09-01 07:29:22,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 296.6666666666667) internal successors, (890), 3 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:22,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:29:22,094 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 07:29:22,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 07:29:22,095 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-09-01 07:29:22,095 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:29:22,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1267539676, now seen corresponding path program 1 times [2023-09-01 07:29:22,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:29:22,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967470001] [2023-09-01 07:29:22,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:22,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:29:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:22,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:29:22,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:29:22,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967470001] [2023-09-01 07:29:22,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967470001] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:29:22,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:29:22,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 07:29:22,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990924171] [2023-09-01 07:29:22,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:29:22,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:29:22,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:29:22,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:29:22,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:29:22,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 705 [2023-09-01 07:29:22,182 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:22,182 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:29:22,182 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 705 [2023-09-01 07:29:22,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:29:22,519 INFO L130 PetriNetUnfolder]: 1181/2052 cut-off events. [2023-09-01 07:29:22,519 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2023-09-01 07:29:22,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4179 conditions, 2052 events. 1181/2052 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 11996 event pairs, 720 based on Foata normal form. 0/1022 useless extension candidates. Maximal degree in co-relation 4167. Up to 1523 conditions per place. [2023-09-01 07:29:22,529 INFO L137 encePairwiseOnDemand]: 699/705 looper letters, 40 selfloop transitions, 2 changer transitions 0/42 dead transitions. [2023-09-01 07:29:22,530 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 42 transitions, 206 flow [2023-09-01 07:29:22,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:29:22,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:29:22,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2023-09-01 07:29:22,533 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43546099290780144 [2023-09-01 07:29:22,533 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 921 transitions. [2023-09-01 07:29:22,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 921 transitions. [2023-09-01 07:29:22,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:29:22,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 921 transitions. [2023-09-01 07:29:22,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:22,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:22,542 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:22,542 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 92 flow. Second operand 3 states and 921 transitions. [2023-09-01 07:29:22,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 42 transitions, 206 flow [2023-09-01 07:29:22,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 42 transitions, 205 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:29:22,544 INFO L231 Difference]: Finished difference. Result has 38 places, 29 transitions, 109 flow [2023-09-01 07:29:22,544 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=109, PETRI_PLACES=38, PETRI_TRANSITIONS=29} [2023-09-01 07:29:22,545 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2023-09-01 07:29:22,545 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 109 flow [2023-09-01 07:29:22,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:22,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:29:22,546 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-09-01 07:29:22,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 07:29:22,546 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-09-01 07:29:22,547 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:29:22,547 INFO L85 PathProgramCache]: Analyzing trace with hash 705605328, now seen corresponding path program 2 times [2023-09-01 07:29:22,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:29:22,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991119721] [2023-09-01 07:29:22,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:22,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:29:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:29:22,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:29:22,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991119721] [2023-09-01 07:29:22,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991119721] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 07:29:22,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631272531] [2023-09-01 07:29:22,622 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-01 07:29:22,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:29:22,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:29:22,623 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-01 07:29:22,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-09-01 07:29:22,712 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-09-01 07:29:22,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-01 07:29:22,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2023-09-01 07:29:22,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 07:29:22,736 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-09-01 07:29:22,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 07:29:22,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631272531] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:29:22,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-01 07:29:22,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-09-01 07:29:22,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307532670] [2023-09-01 07:29:22,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:29:22,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:29:22,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:29:22,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:29:22,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-09-01 07:29:22,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 705 [2023-09-01 07:29:22,755 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 109 flow. Second operand has 3 states, 3 states have (on average 296.0) internal successors, (888), 3 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:22,755 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:29:22,755 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 705 [2023-09-01 07:29:22,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:29:23,067 INFO L130 PetriNetUnfolder]: 1181/2051 cut-off events. [2023-09-01 07:29:23,067 INFO L131 PetriNetUnfolder]: For 428/428 co-relation queries the response was YES. [2023-09-01 07:29:23,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4814 conditions, 2051 events. 1181/2051 cut-off events. For 428/428 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 11687 event pairs, 990 based on Foata normal form. 1/1182 useless extension candidates. Maximal degree in co-relation 4801. Up to 2051 conditions per place. [2023-09-01 07:29:23,077 INFO L137 encePairwiseOnDemand]: 703/705 looper letters, 27 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2023-09-01 07:29:23,077 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 28 transitions, 155 flow [2023-09-01 07:29:23,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:29:23,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:29:23,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 909 transitions. [2023-09-01 07:29:23,080 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4297872340425532 [2023-09-01 07:29:23,080 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 909 transitions. [2023-09-01 07:29:23,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 909 transitions. [2023-09-01 07:29:23,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:29:23,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 909 transitions. [2023-09-01 07:29:23,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:23,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:23,086 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:23,086 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 109 flow. Second operand 3 states and 909 transitions. [2023-09-01 07:29:23,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 28 transitions, 155 flow [2023-09-01 07:29:23,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 28 transitions, 143 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-09-01 07:29:23,088 INFO L231 Difference]: Finished difference. Result has 34 places, 28 transitions, 89 flow [2023-09-01 07:29:23,088 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=89, PETRI_PLACES=34, PETRI_TRANSITIONS=28} [2023-09-01 07:29:23,088 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -6 predicate places. [2023-09-01 07:29:23,089 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 89 flow [2023-09-01 07:29:23,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 296.0) internal successors, (888), 3 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:23,089 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:29:23,089 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 07:29:23,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-09-01 07:29:23,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:29:23,294 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-09-01 07:29:23,294 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:29:23,295 INFO L85 PathProgramCache]: Analyzing trace with hash 639025070, now seen corresponding path program 1 times [2023-09-01 07:29:23,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:29:23,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719093306] [2023-09-01 07:29:23,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:23,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:29:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:23,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:29:23,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:29:23,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719093306] [2023-09-01 07:29:23,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719093306] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:29:23,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:29:23,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 07:29:23,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255932028] [2023-09-01 07:29:23,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:29:23,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:29:23,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:29:23,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:29:23,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:29:23,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 705 [2023-09-01 07:29:23,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 28 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 295.0) internal successors, (885), 3 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:23,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:29:23,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 705 [2023-09-01 07:29:23,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:29:23,625 INFO L130 PetriNetUnfolder]: 1066/1856 cut-off events. [2023-09-01 07:29:23,625 INFO L131 PetriNetUnfolder]: For 280/280 co-relation queries the response was YES. [2023-09-01 07:29:23,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4251 conditions, 1856 events. 1066/1856 cut-off events. For 280/280 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 10339 event pairs, 885 based on Foata normal form. 0/1116 useless extension candidates. Maximal degree in co-relation 4241. Up to 1856 conditions per place. [2023-09-01 07:29:23,634 INFO L137 encePairwiseOnDemand]: 703/705 looper letters, 26 selfloop transitions, 1 changer transitions 0/27 dead transitions. [2023-09-01 07:29:23,634 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 27 transitions, 139 flow [2023-09-01 07:29:23,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:29:23,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:29:23,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 902 transitions. [2023-09-01 07:29:23,638 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4264775413711584 [2023-09-01 07:29:23,638 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 902 transitions. [2023-09-01 07:29:23,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 902 transitions. [2023-09-01 07:29:23,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:29:23,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 902 transitions. [2023-09-01 07:29:23,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 300.6666666666667) internal successors, (902), 3 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:23,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:23,646 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:23,646 INFO L175 Difference]: Start difference. First operand has 34 places, 28 transitions, 89 flow. Second operand 3 states and 902 transitions. [2023-09-01 07:29:23,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 27 transitions, 139 flow [2023-09-01 07:29:23,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 27 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:29:23,648 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 86 flow [2023-09-01 07:29:23,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2023-09-01 07:29:23,649 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -6 predicate places. [2023-09-01 07:29:23,649 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 86 flow [2023-09-01 07:29:23,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.0) internal successors, (885), 3 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:23,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:29:23,650 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 07:29:23,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 07:29:23,650 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-09-01 07:29:23,651 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:29:23,651 INFO L85 PathProgramCache]: Analyzing trace with hash 639025090, now seen corresponding path program 1 times [2023-09-01 07:29:23,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:29:23,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934553217] [2023-09-01 07:29:23,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:23,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:29:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:23,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:29:23,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:29:23,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934553217] [2023-09-01 07:29:23,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934553217] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 07:29:23,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194119407] [2023-09-01 07:29:23,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:23,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:29:23,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:29:23,725 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-01 07:29:23,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-09-01 07:29:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:23,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjunts are in the unsatisfiable core [2023-09-01 07:29:23,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 07:29:23,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-01 07:29:23,839 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 07:29:23,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194119407] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:29:23,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-01 07:29:23,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-09-01 07:29:23,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261257261] [2023-09-01 07:29:23,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:29:23,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:29:23,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:29:23,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:29:23,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 07:29:23,858 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 705 [2023-09-01 07:29:23,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 295.0) internal successors, (885), 3 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:23,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:29:23,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 705 [2023-09-01 07:29:23,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:29:24,092 INFO L130 PetriNetUnfolder]: 853/1486 cut-off events. [2023-09-01 07:29:24,092 INFO L131 PetriNetUnfolder]: For 224/224 co-relation queries the response was YES. [2023-09-01 07:29:24,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3407 conditions, 1486 events. 853/1486 cut-off events. For 224/224 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 7925 event pairs, 708 based on Foata normal form. 1/895 useless extension candidates. Maximal degree in co-relation 3396. Up to 1486 conditions per place. [2023-09-01 07:29:24,099 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 25 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2023-09-01 07:29:24,101 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 140 flow [2023-09-01 07:29:24,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:29:24,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:29:24,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 903 transitions. [2023-09-01 07:29:24,104 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4269503546099291 [2023-09-01 07:29:24,104 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 903 transitions. [2023-09-01 07:29:24,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 903 transitions. [2023-09-01 07:29:24,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:29:24,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 903 transitions. [2023-09-01 07:29:24,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:24,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:24,110 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:24,111 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 86 flow. Second operand 3 states and 903 transitions. [2023-09-01 07:29:24,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 140 flow [2023-09-01 07:29:24,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 27 transitions, 137 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-09-01 07:29:24,112 INFO L231 Difference]: Finished difference. Result has 36 places, 27 transitions, 91 flow [2023-09-01 07:29:24,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2023-09-01 07:29:24,115 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2023-09-01 07:29:24,115 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 91 flow [2023-09-01 07:29:24,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.0) internal successors, (885), 3 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:24,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:29:24,116 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:29:24,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-09-01 07:29:24,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:29:24,323 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-09-01 07:29:24,323 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:29:24,323 INFO L85 PathProgramCache]: Analyzing trace with hash 332351685, now seen corresponding path program 1 times [2023-09-01 07:29:24,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:29:24,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710737875] [2023-09-01 07:29:24,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:24,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:29:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:24,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-01 07:29:24,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:29:24,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710737875] [2023-09-01 07:29:24,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710737875] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 07:29:24,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102189203] [2023-09-01 07:29:24,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:24,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:29:24,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:29:24,378 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-01 07:29:24,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-09-01 07:29:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:24,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 5 conjunts are in the unsatisfiable core [2023-09-01 07:29:24,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 07:29:24,489 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-01 07:29:24,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-09-01 07:29:24,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-01 07:29:24,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102189203] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-01 07:29:24,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-01 07:29:24,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2023-09-01 07:29:24,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127614179] [2023-09-01 07:29:24,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-01 07:29:24,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 07:29:24,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:29:24,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 07:29:24,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-09-01 07:29:24,564 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 705 [2023-09-01 07:29:24,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 91 flow. Second operand has 8 states, 8 states have (on average 289.125) internal successors, (2313), 8 states have internal predecessors, (2313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:24,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:29:24,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 705 [2023-09-01 07:29:24,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:29:24,784 INFO L130 PetriNetUnfolder]: 547/958 cut-off events. [2023-09-01 07:29:24,784 INFO L131 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2023-09-01 07:29:24,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2182 conditions, 958 events. 547/958 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 4926 event pairs, 246 based on Foata normal form. 2/604 useless extension candidates. Maximal degree in co-relation 2169. Up to 532 conditions per place. [2023-09-01 07:29:24,789 INFO L137 encePairwiseOnDemand]: 697/705 looper letters, 47 selfloop transitions, 7 changer transitions 0/54 dead transitions. [2023-09-01 07:29:24,789 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 54 transitions, 259 flow [2023-09-01 07:29:24,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 07:29:24,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 07:29:24,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2067 transitions. [2023-09-01 07:29:24,794 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4188449848024316 [2023-09-01 07:29:24,794 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2067 transitions. [2023-09-01 07:29:24,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2067 transitions. [2023-09-01 07:29:24,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:29:24,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2067 transitions. [2023-09-01 07:29:24,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 295.2857142857143) internal successors, (2067), 7 states have internal predecessors, (2067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:24,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 705.0) internal successors, (5640), 8 states have internal predecessors, (5640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:24,807 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 705.0) internal successors, (5640), 8 states have internal predecessors, (5640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:24,807 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 91 flow. Second operand 7 states and 2067 transitions. [2023-09-01 07:29:24,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 54 transitions, 259 flow [2023-09-01 07:29:24,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 54 transitions, 251 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-09-01 07:29:24,809 INFO L231 Difference]: Finished difference. Result has 43 places, 28 transitions, 119 flow [2023-09-01 07:29:24,809 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=119, PETRI_PLACES=43, PETRI_TRANSITIONS=28} [2023-09-01 07:29:24,810 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2023-09-01 07:29:24,810 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 28 transitions, 119 flow [2023-09-01 07:29:24,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 289.125) internal successors, (2313), 8 states have internal predecessors, (2313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:24,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:29:24,811 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2023-09-01 07:29:24,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-09-01 07:29:25,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:29:25,017 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-09-01 07:29:25,017 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:29:25,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1654367495, now seen corresponding path program 1 times [2023-09-01 07:29:25,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:29:25,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575721333] [2023-09-01 07:29:25,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:25,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:29:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:25,099 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-09-01 07:29:25,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:29:25,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575721333] [2023-09-01 07:29:25,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575721333] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 07:29:25,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944761488] [2023-09-01 07:29:25,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:25,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:29:25,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:29:25,102 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-01 07:29:25,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-09-01 07:29:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:25,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 4 conjunts are in the unsatisfiable core [2023-09-01 07:29:25,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 07:29:25,227 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-09-01 07:29:25,227 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 07:29:25,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944761488] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:29:25,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-01 07:29:25,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2023-09-01 07:29:25,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693427741] [2023-09-01 07:29:25,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:29:25,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:29:25,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:29:25,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:29:25,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-09-01 07:29:25,247 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 705 [2023-09-01 07:29:25,254 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 28 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:25,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:29:25,255 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 705 [2023-09-01 07:29:25,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:29:25,388 INFO L130 PetriNetUnfolder]: 435/766 cut-off events. [2023-09-01 07:29:25,388 INFO L131 PetriNetUnfolder]: For 410/410 co-relation queries the response was YES. [2023-09-01 07:29:25,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1945 conditions, 766 events. 435/766 cut-off events. For 410/410 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3517 event pairs, 358 based on Foata normal form. 0/518 useless extension candidates. Maximal degree in co-relation 1929. Up to 766 conditions per place. [2023-09-01 07:29:25,392 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 25 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2023-09-01 07:29:25,392 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 26 transitions, 163 flow [2023-09-01 07:29:25,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:29:25,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:29:25,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 907 transitions. [2023-09-01 07:29:25,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42884160756501183 [2023-09-01 07:29:25,395 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 907 transitions. [2023-09-01 07:29:25,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 907 transitions. [2023-09-01 07:29:25,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:29:25,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 907 transitions. [2023-09-01 07:29:25,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:25,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:25,401 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:25,401 INFO L175 Difference]: Start difference. First operand has 43 places, 28 transitions, 119 flow. Second operand 3 states and 907 transitions. [2023-09-01 07:29:25,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 26 transitions, 163 flow [2023-09-01 07:29:25,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 26 transitions, 149 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-09-01 07:29:25,402 INFO L231 Difference]: Finished difference. Result has 38 places, 26 transitions, 99 flow [2023-09-01 07:29:25,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=38, PETRI_TRANSITIONS=26} [2023-09-01 07:29:25,403 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2023-09-01 07:29:25,403 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 26 transitions, 99 flow [2023-09-01 07:29:25,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:25,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:29:25,404 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2023-09-01 07:29:25,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-09-01 07:29:25,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:29:25,610 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-09-01 07:29:25,610 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:29:25,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1654367492, now seen corresponding path program 2 times [2023-09-01 07:29:25,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:29:25,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978668008] [2023-09-01 07:29:25,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:25,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:29:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:25,679 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-09-01 07:29:25,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:29:25,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978668008] [2023-09-01 07:29:25,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978668008] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 07:29:25,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629000232] [2023-09-01 07:29:25,680 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-01 07:29:25,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:29:25,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:29:25,681 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-01 07:29:25,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-09-01 07:29:25,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-09-01 07:29:25,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-01 07:29:25,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 5 conjunts are in the unsatisfiable core [2023-09-01 07:29:25,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 07:29:25,797 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-09-01 07:29:25,797 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 07:29:25,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629000232] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:29:25,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-01 07:29:25,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2023-09-01 07:29:25,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781132132] [2023-09-01 07:29:25,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:29:25,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:29:25,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:29:25,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:29:25,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-09-01 07:29:25,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 705 [2023-09-01 07:29:25,816 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 26 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:25,816 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:29:25,816 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 705 [2023-09-01 07:29:25,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:29:25,924 INFO L130 PetriNetUnfolder]: 335/594 cut-off events. [2023-09-01 07:29:25,925 INFO L131 PetriNetUnfolder]: For 192/192 co-relation queries the response was YES. [2023-09-01 07:29:25,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1424 conditions, 594 events. 335/594 cut-off events. For 192/192 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2533 event pairs, 266 based on Foata normal form. 0/438 useless extension candidates. Maximal degree in co-relation 1408. Up to 594 conditions per place. [2023-09-01 07:29:25,928 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-09-01 07:29:25,928 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 24 transitions, 139 flow [2023-09-01 07:29:25,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:29:25,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:29:25,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 905 transitions. [2023-09-01 07:29:25,931 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42789598108747046 [2023-09-01 07:29:25,931 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 905 transitions. [2023-09-01 07:29:25,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 905 transitions. [2023-09-01 07:29:25,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:29:25,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 905 transitions. [2023-09-01 07:29:25,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.6666666666667) internal successors, (905), 3 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:25,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:25,936 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:25,936 INFO L175 Difference]: Start difference. First operand has 38 places, 26 transitions, 99 flow. Second operand 3 states and 905 transitions. [2023-09-01 07:29:25,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 24 transitions, 139 flow [2023-09-01 07:29:25,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 24 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:29:25,938 INFO L231 Difference]: Finished difference. Result has 37 places, 24 transitions, 92 flow [2023-09-01 07:29:25,938 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=37, PETRI_TRANSITIONS=24} [2023-09-01 07:29:25,938 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2023-09-01 07:29:25,939 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 24 transitions, 92 flow [2023-09-01 07:29:25,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:25,939 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:29:25,939 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2023-09-01 07:29:25,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-09-01 07:29:26,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:29:26,145 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-09-01 07:29:26,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:29:26,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1654367496, now seen corresponding path program 1 times [2023-09-01 07:29:26,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:29:26,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980204080] [2023-09-01 07:29:26,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:26,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:29:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:26,250 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-09-01 07:29:26,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:29:26,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980204080] [2023-09-01 07:29:26,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980204080] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 07:29:26,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626299716] [2023-09-01 07:29:26,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:26,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:29:26,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:29:26,253 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-01 07:29:26,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-09-01 07:29:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:26,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjunts are in the unsatisfiable core [2023-09-01 07:29:26,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 07:29:26,376 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-09-01 07:29:26,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-09-01 07:29:26,470 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-09-01 07:29:26,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626299716] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-01 07:29:26,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-01 07:29:26,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2023-09-01 07:29:26,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058605600] [2023-09-01 07:29:26,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-01 07:29:26,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 07:29:26,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:29:26,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 07:29:26,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-09-01 07:29:26,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 705 [2023-09-01 07:29:26,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 24 transitions, 92 flow. Second operand has 6 states, 6 states have (on average 294.6666666666667) internal successors, (1768), 6 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:26,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:29:26,500 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 705 [2023-09-01 07:29:26,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:29:26,701 INFO L130 PetriNetUnfolder]: 423/750 cut-off events. [2023-09-01 07:29:26,702 INFO L131 PetriNetUnfolder]: For 94/94 co-relation queries the response was YES. [2023-09-01 07:29:26,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1789 conditions, 750 events. 423/750 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3623 event pairs, 114 based on Foata normal form. 0/558 useless extension candidates. Maximal degree in co-relation 1772. Up to 283 conditions per place. [2023-09-01 07:29:26,707 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 54 selfloop transitions, 4 changer transitions 0/58 dead transitions. [2023-09-01 07:29:26,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 58 transitions, 286 flow [2023-09-01 07:29:26,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 07:29:26,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 07:29:26,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1520 transitions. [2023-09-01 07:29:26,711 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43120567375886526 [2023-09-01 07:29:26,711 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1520 transitions. [2023-09-01 07:29:26,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1520 transitions. [2023-09-01 07:29:26,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:29:26,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1520 transitions. [2023-09-01 07:29:26,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 304.0) internal successors, (1520), 5 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:26,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 705.0) internal successors, (4230), 6 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:26,719 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 705.0) internal successors, (4230), 6 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:26,720 INFO L175 Difference]: Start difference. First operand has 37 places, 24 transitions, 92 flow. Second operand 5 states and 1520 transitions. [2023-09-01 07:29:26,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 58 transitions, 286 flow [2023-09-01 07:29:26,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 58 transitions, 285 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:29:26,722 INFO L231 Difference]: Finished difference. Result has 41 places, 25 transitions, 111 flow [2023-09-01 07:29:26,722 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=111, PETRI_PLACES=41, PETRI_TRANSITIONS=25} [2023-09-01 07:29:26,723 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2023-09-01 07:29:26,723 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 25 transitions, 111 flow [2023-09-01 07:29:26,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 294.6666666666667) internal successors, (1768), 6 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:26,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:29:26,724 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:29:26,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-09-01 07:29:26,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-09-01 07:29:26,931 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-09-01 07:29:26,931 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:29:26,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1655049987, now seen corresponding path program 1 times [2023-09-01 07:29:26,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:29:26,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874591702] [2023-09-01 07:29:26,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:26,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:29:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:26,967 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-09-01 07:29:26,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:29:26,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874591702] [2023-09-01 07:29:26,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874591702] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:29:26,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:29:26,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 07:29:26,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558699436] [2023-09-01 07:29:26,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:29:26,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:29:26,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:29:26,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:29:26,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:29:26,979 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 705 [2023-09-01 07:29:26,980 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 25 transitions, 111 flow. Second operand has 3 states, 3 states have (on average 295.6666666666667) internal successors, (887), 3 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:26,980 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:29:26,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 705 [2023-09-01 07:29:26,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:29:27,180 INFO L130 PetriNetUnfolder]: 575/1014 cut-off events. [2023-09-01 07:29:27,180 INFO L131 PetriNetUnfolder]: For 768/768 co-relation queries the response was YES. [2023-09-01 07:29:27,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2622 conditions, 1014 events. 575/1014 cut-off events. For 768/768 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4963 event pairs, 342 based on Foata normal form. 0/758 useless extension candidates. Maximal degree in co-relation 2604. Up to 751 conditions per place. [2023-09-01 07:29:27,185 INFO L137 encePairwiseOnDemand]: 701/705 looper letters, 35 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-09-01 07:29:27,186 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 37 transitions, 244 flow [2023-09-01 07:29:27,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:29:27,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:29:27,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 908 transitions. [2023-09-01 07:29:27,188 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4293144208037825 [2023-09-01 07:29:27,189 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 908 transitions. [2023-09-01 07:29:27,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 908 transitions. [2023-09-01 07:29:27,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:29:27,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 908 transitions. [2023-09-01 07:29:27,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.6666666666667) internal successors, (908), 3 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:27,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:27,194 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:27,194 INFO L175 Difference]: Start difference. First operand has 41 places, 25 transitions, 111 flow. Second operand 3 states and 908 transitions. [2023-09-01 07:29:27,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 37 transitions, 244 flow [2023-09-01 07:29:27,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 224 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-09-01 07:29:27,196 INFO L231 Difference]: Finished difference. Result has 41 places, 26 transitions, 115 flow [2023-09-01 07:29:27,196 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=115, PETRI_PLACES=41, PETRI_TRANSITIONS=26} [2023-09-01 07:29:27,197 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2023-09-01 07:29:27,197 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 26 transitions, 115 flow [2023-09-01 07:29:27,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.6666666666667) internal successors, (887), 3 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:27,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:29:27,197 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1] [2023-09-01 07:29:27,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-09-01 07:29:27,198 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-09-01 07:29:27,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:29:27,198 INFO L85 PathProgramCache]: Analyzing trace with hash 254216001, now seen corresponding path program 2 times [2023-09-01 07:29:27,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:29:27,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030655720] [2023-09-01 07:29:27,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:27,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:29:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:27,289 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-09-01 07:29:27,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:29:27,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030655720] [2023-09-01 07:29:27,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030655720] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:29:27,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:29:27,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:29:27,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616283441] [2023-09-01 07:29:27,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:29:27,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:29:27,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:29:27,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:29:27,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:29:27,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 705 [2023-09-01 07:29:27,307 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 26 transitions, 115 flow. Second operand has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:27,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:29:27,307 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 705 [2023-09-01 07:29:27,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:29:27,464 INFO L130 PetriNetUnfolder]: 459/814 cut-off events. [2023-09-01 07:29:27,465 INFO L131 PetriNetUnfolder]: For 534/534 co-relation queries the response was YES. [2023-09-01 07:29:27,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2189 conditions, 814 events. 459/814 cut-off events. For 534/534 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3699 event pairs, 378 based on Foata normal form. 0/762 useless extension candidates. Maximal degree in co-relation 2170. Up to 814 conditions per place. [2023-09-01 07:29:27,468 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 22 selfloop transitions, 1 changer transitions 1/24 dead transitions. [2023-09-01 07:29:27,468 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 24 transitions, 151 flow [2023-09-01 07:29:27,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:29:27,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:29:27,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 903 transitions. [2023-09-01 07:29:27,471 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4269503546099291 [2023-09-01 07:29:27,471 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 903 transitions. [2023-09-01 07:29:27,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 903 transitions. [2023-09-01 07:29:27,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:29:27,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 903 transitions. [2023-09-01 07:29:27,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:27,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:27,476 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:27,476 INFO L175 Difference]: Start difference. First operand has 41 places, 26 transitions, 115 flow. Second operand 3 states and 903 transitions. [2023-09-01 07:29:27,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 24 transitions, 151 flow [2023-09-01 07:29:27,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 24 transitions, 149 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:29:27,478 INFO L231 Difference]: Finished difference. Result has 40 places, 23 transitions, 101 flow [2023-09-01 07:29:27,478 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=40, PETRI_TRANSITIONS=23} [2023-09-01 07:29:27,478 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2023-09-01 07:29:27,478 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 23 transitions, 101 flow [2023-09-01 07:29:27,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:27,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:29:27,479 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:29:27,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-09-01 07:29:27,479 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-09-01 07:29:27,480 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:29:27,480 INFO L85 PathProgramCache]: Analyzing trace with hash 233059932, now seen corresponding path program 1 times [2023-09-01 07:29:27,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:29:27,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934625707] [2023-09-01 07:29:27,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:27,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:29:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:27,529 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-09-01 07:29:27,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:29:27,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934625707] [2023-09-01 07:29:27,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934625707] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:29:27,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:29:27,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 07:29:27,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865584140] [2023-09-01 07:29:27,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:29:27,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:29:27,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:29:27,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:29:27,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:29:27,542 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 705 [2023-09-01 07:29:27,542 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 23 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 296.0) internal successors, (888), 3 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:27,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:29:27,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 705 [2023-09-01 07:29:27,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:29:27,617 INFO L130 PetriNetUnfolder]: 249/448 cut-off events. [2023-09-01 07:29:27,618 INFO L131 PetriNetUnfolder]: For 248/248 co-relation queries the response was YES. [2023-09-01 07:29:27,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1246 conditions, 448 events. 249/448 cut-off events. For 248/248 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1759 event pairs, 180 based on Foata normal form. 0/448 useless extension candidates. Maximal degree in co-relation 1226. Up to 448 conditions per place. [2023-09-01 07:29:27,619 INFO L137 encePairwiseOnDemand]: 703/705 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2023-09-01 07:29:27,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 22 transitions, 141 flow [2023-09-01 07:29:27,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:29:27,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:29:27,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 894 transitions. [2023-09-01 07:29:27,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4226950354609929 [2023-09-01 07:29:27,622 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 894 transitions. [2023-09-01 07:29:27,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 894 transitions. [2023-09-01 07:29:27,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:29:27,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 894 transitions. [2023-09-01 07:29:27,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 298.0) internal successors, (894), 3 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:27,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:27,627 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:27,627 INFO L175 Difference]: Start difference. First operand has 40 places, 23 transitions, 101 flow. Second operand 3 states and 894 transitions. [2023-09-01 07:29:27,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 22 transitions, 141 flow [2023-09-01 07:29:27,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 22 transitions, 138 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-09-01 07:29:27,629 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2023-09-01 07:29:27,629 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2023-09-01 07:29:27,630 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2023-09-01 07:29:27,630 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2023-09-01 07:29:27,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 296.0) internal successors, (888), 3 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:27,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 38 remaining) [2023-09-01 07:29:27,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 38 remaining) [2023-09-01 07:29:27,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 38 remaining) [2023-09-01 07:29:27,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 38 remaining) [2023-09-01 07:29:27,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 38 remaining) [2023-09-01 07:29:27,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 38 remaining) [2023-09-01 07:29:27,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 38 remaining) [2023-09-01 07:29:27,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 38 remaining) [2023-09-01 07:29:27,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 38 remaining) [2023-09-01 07:29:27,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 38 remaining) [2023-09-01 07:29:27,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 38 remaining) [2023-09-01 07:29:27,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 38 remaining) [2023-09-01 07:29:27,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 38 remaining) [2023-09-01 07:29:27,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 38 remaining) [2023-09-01 07:29:27,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 38 remaining) [2023-09-01 07:29:27,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 38 remaining) [2023-09-01 07:29:27,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 38 remaining) [2023-09-01 07:29:27,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 38 remaining) [2023-09-01 07:29:27,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 38 remaining) [2023-09-01 07:29:27,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 38 remaining) [2023-09-01 07:29:27,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 38 remaining) [2023-09-01 07:29:27,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 38 remaining) [2023-09-01 07:29:27,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 38 remaining) [2023-09-01 07:29:27,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 38 remaining) [2023-09-01 07:29:27,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 38 remaining) [2023-09-01 07:29:27,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 38 remaining) [2023-09-01 07:29:27,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 38 remaining) [2023-09-01 07:29:27,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 38 remaining) [2023-09-01 07:29:27,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 38 remaining) [2023-09-01 07:29:27,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 38 remaining) [2023-09-01 07:29:27,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 38 remaining) [2023-09-01 07:29:27,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 38 remaining) [2023-09-01 07:29:27,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 38 remaining) [2023-09-01 07:29:27,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 38 remaining) [2023-09-01 07:29:27,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 38 remaining) [2023-09-01 07:29:27,640 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 38 remaining) [2023-09-01 07:29:27,640 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 38 remaining) [2023-09-01 07:29:27,640 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 38 remaining) [2023-09-01 07:29:27,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-09-01 07:29:27,641 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:29:27,646 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 07:29:27,647 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 07:29:27,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 07:29:27 BasicIcfg [2023-09-01 07:29:27,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 07:29:27,650 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 07:29:27,650 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 07:29:27,651 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 07:29:27,651 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:29:05" (3/4) ... [2023-09-01 07:29:27,653 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 07:29:27,659 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-09-01 07:29:27,660 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-09-01 07:29:27,665 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-09-01 07:29:27,666 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-09-01 07:29:27,666 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 07:29:27,666 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 07:29:27,711 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 07:29:27,711 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 07:29:27,712 INFO L158 Benchmark]: Toolchain (without parser) took 22834.05ms. Allocated memory was 69.2MB in the beginning and 371.2MB in the end (delta: 302.0MB). Free memory was 43.2MB in the beginning and 218.3MB in the end (delta: -175.1MB). Peak memory consumption was 127.9MB. Max. memory is 16.1GB. [2023-09-01 07:29:27,712 INFO L158 Benchmark]: CDTParser took 0.79ms. Allocated memory is still 69.2MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 07:29:27,712 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.24ms. Allocated memory is still 69.2MB. Free memory was 42.8MB in the beginning and 30.6MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-09-01 07:29:27,713 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.86ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 30.6MB in the beginning and 68.3MB in the end (delta: -37.6MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2023-09-01 07:29:27,713 INFO L158 Benchmark]: Boogie Preprocessor took 58.40ms. Allocated memory is still 88.1MB. Free memory was 68.3MB in the beginning and 66.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 07:29:27,713 INFO L158 Benchmark]: RCFGBuilder took 622.60ms. Allocated memory is still 88.1MB. Free memory was 66.2MB in the beginning and 42.3MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-09-01 07:29:27,713 INFO L158 Benchmark]: TraceAbstraction took 21649.39ms. Allocated memory was 88.1MB in the beginning and 371.2MB in the end (delta: 283.1MB). Free memory was 41.5MB in the beginning and 222.5MB in the end (delta: -181.0MB). Peak memory consumption was 103.2MB. Max. memory is 16.1GB. [2023-09-01 07:29:27,714 INFO L158 Benchmark]: Witness Printer took 60.72ms. Allocated memory is still 371.2MB. Free memory was 222.5MB in the beginning and 218.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 07:29:27,717 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79ms. Allocated memory is still 69.2MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.24ms. Allocated memory is still 69.2MB. Free memory was 42.8MB in the beginning and 30.6MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.86ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 30.6MB in the beginning and 68.3MB in the end (delta: -37.6MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.40ms. Allocated memory is still 88.1MB. Free memory was 68.3MB in the beginning and 66.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 622.60ms. Allocated memory is still 88.1MB. Free memory was 66.2MB in the beginning and 42.3MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 21649.39ms. Allocated memory was 88.1MB in the beginning and 371.2MB in the end (delta: 283.1MB). Free memory was 41.5MB in the beginning and 222.5MB in the end (delta: -181.0MB). Peak memory consumption was 103.2MB. Max. memory is 16.1GB. * Witness Printer took 60.72ms. Allocated memory is still 371.2MB. Free memory was 222.5MB in the beginning and 218.3MB in the end (delta: 4.2MB). 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: 13.0s, 286 PlacesBefore, 40 PlacesAfterwards, 301 TransitionsBefore, 36 TransitionsAfterwards, 18512 CoEnabledTransitionPairs, 8 FixpointIterations, 106 TrivialSequentialCompositions, 202 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 51 ConcurrentYvCompositions, 19 ChoiceCompositions, 387 TotalNumberOfCompositions, 18426 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18252, independent: 18238, independent conditional: 0, independent unconditional: 18238, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 11036, independent: 11030, independent conditional: 0, independent unconditional: 11030, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 18252, independent: 7208, independent conditional: 0, independent unconditional: 7208, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 11036, unknown conditional: 0, unknown unconditional: 11036] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 130]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 130]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 131]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 131]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 132]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 132]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 130]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 130]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 131]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 131]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 132]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 132]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 123]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 123]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 112]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 112]: 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 5 procedures, 460 locations, 38 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: 21.5s, OverallIterations: 15, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 878 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 643 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1036 IncrementalHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 46 mSDtfsCounter, 1036 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 58 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred in iteration=9, InterpolantAutomatonStates: 55, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 160 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 376 SizeOfPredicates, 9 NumberOfNonLiveVariables, 1166 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 26 InterpolantComputations, 12 PerfectInterpolantSequences, 96/122 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 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 07:29:27,751 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