./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 TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/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 TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 14:49:28,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 14:49:28,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 14:49:28,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 14:49:28,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 14:49:28,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 14:49:28,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 14:49:28,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 14:49:28,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 14:49:28,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 14:49:28,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 14:49:28,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 14:49:28,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 14:49:28,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 14:49:28,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 14:49:28,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 14:49:28,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 14:49:28,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 14:49:28,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 14:49:28,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 14:49:28,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 14:49:28,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 14:49:28,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 14:49:28,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 14:49:28,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 14:49:28,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 14:49:28,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 14:49:28,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 14:49:28,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 14:49:28,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 14:49:28,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 14:49:28,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 14:49:28,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 14:49:28,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 14:49:28,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 14:49:28,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 14:49:28,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 14:49:28,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 14:49:28,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 14:49:28,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 14:49:28,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 14:49:28,805 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 14:49:28,830 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 14:49:28,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 14:49:28,831 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 14:49:28,831 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 14:49:28,832 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 14:49:28,832 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 14:49:28,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 14:49:28,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 14:49:28,832 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 14:49:28,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 14:49:28,833 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 14:49:28,833 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 14:49:28,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 14:49:28,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 14:49:28,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 14:49:28,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 14:49:28,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 14:49:28,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 14:49:28,834 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 14:49:28,834 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 14:49:28,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 14:49:28,835 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 14:49:28,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 14:49:28,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 14:49:28,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 14:49:28,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 14:49:28,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:49:28,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 14:49:28,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 14:49:28,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 14:49:28,836 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 14:49:28,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 14:49:28,836 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 14:49:28,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 14:49:28,836 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 14:49:28,837 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 14:49:28,837 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 14:49:28,837 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 908fbcc4d3742ed9abcae99df082df11caf0d6bd4e74389f515555cf6e492354 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 14:49:29,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 14:49:29,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 14:49:29,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 14:49:29,060 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 14:49:29,060 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 14:49:29,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c [2023-08-30 14:49:29,973 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 14:49:30,151 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 14:49:30,152 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c [2023-08-30 14:49:30,161 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2c7051d1/457dd0ad85604931a59c5e6e809296ea/FLAG6a8f76d88 [2023-08-30 14:49:30,170 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2c7051d1/457dd0ad85604931a59c5e6e809296ea [2023-08-30 14:49:30,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 14:49:30,172 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 14:49:30,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 14:49:30,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 14:49:30,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 14:49:30,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:49:30" (1/1) ... [2023-08-30 14:49:30,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b6c3b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:49:30, skipping insertion in model container [2023-08-30 14:49:30,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:49:30" (1/1) ... [2023-08-30 14:49:30,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 14:49:30,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 14:49:30,313 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] [2023-08-30 14:49:30,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:49:30,325 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 14:49:30,341 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] [2023-08-30 14:49:30,343 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:49:30,352 INFO L208 MainTranslator]: Completed translation [2023-08-30 14:49:30,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:49:30 WrapperNode [2023-08-30 14:49:30,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 14:49:30,353 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 14:49:30,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 14:49:30,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 14:49:30,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:49:30" (1/1) ... [2023-08-30 14:49:30,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:49:30" (1/1) ... [2023-08-30 14:49:30,406 INFO L138 Inliner]: procedures = 25, calls = 34, calls flagged for inlining = 14, calls inlined = 16, statements flattened = 263 [2023-08-30 14:49:30,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 14:49:30,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 14:49:30,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 14:49:30,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 14:49:30,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:49:30" (1/1) ... [2023-08-30 14:49:30,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:49:30" (1/1) ... [2023-08-30 14:49:30,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:49:30" (1/1) ... [2023-08-30 14:49:30,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:49:30" (1/1) ... [2023-08-30 14:49:30,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:49:30" (1/1) ... [2023-08-30 14:49:30,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:49:30" (1/1) ... [2023-08-30 14:49:30,450 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:49:30" (1/1) ... [2023-08-30 14:49:30,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:49:30" (1/1) ... [2023-08-30 14:49:30,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 14:49:30,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 14:49:30,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 14:49:30,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 14:49:30,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:49:30" (1/1) ... [2023-08-30 14:49:30,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:49:30,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:49:30,490 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 14:49:30,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 14:49:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 14:49:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 14:49:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 14:49:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 14:49:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-30 14:49:30,518 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-30 14:49:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-30 14:49:30,519 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-30 14:49:30,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 14:49:30,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 14:49:30,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 14:49:30,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 14:49:30,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 14:49:30,520 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 14:49:30,644 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 14:49:30,658 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 14:49:30,966 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 14:49:30,974 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 14:49:30,974 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-30 14:49:30,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:49:30 BoogieIcfgContainer [2023-08-30 14:49:30,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 14:49:30,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 14:49:30,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 14:49:30,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 14:49:30,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 02:49:30" (1/3) ... [2023-08-30 14:49:30,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470fbd8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:49:30, skipping insertion in model container [2023-08-30 14:49:30,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:49:30" (2/3) ... [2023-08-30 14:49:30,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470fbd8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:49:30, skipping insertion in model container [2023-08-30 14:49:30,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:49:30" (3/3) ... [2023-08-30 14:49:30,980 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-symm.wvr.c [2023-08-30 14:49:30,984 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 14:49:30,990 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 14:49:30,990 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-08-30 14:49:30,990 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 14:49:31,107 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 14:49:31,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 302 places, 318 transitions, 652 flow [2023-08-30 14:49:31,252 INFO L130 PetriNetUnfolder]: 23/316 cut-off events. [2023-08-30 14:49:31,254 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 14:49:31,261 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. [2023-08-30 14:49:31,261 INFO L82 GeneralOperation]: Start removeDead. Operand has 302 places, 318 transitions, 652 flow [2023-08-30 14:49:31,271 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 286 places, 301 transitions, 614 flow [2023-08-30 14:49:31,276 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 14:49:31,286 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 286 places, 301 transitions, 614 flow [2023-08-30 14:49:31,288 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 286 places, 301 transitions, 614 flow [2023-08-30 14:49:31,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 286 places, 301 transitions, 614 flow [2023-08-30 14:49:31,335 INFO L130 PetriNetUnfolder]: 22/301 cut-off events. [2023-08-30 14:49:31,335 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 14:49:31,338 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. [2023-08-30 14:49:31,344 INFO L119 LiptonReduction]: Number of co-enabled transitions 18512 [2023-08-30 14:49:42,117 INFO L134 LiptonReduction]: Checked pairs total: 18426 [2023-08-30 14:49:42,117 INFO L136 LiptonReduction]: Total number of compositions: 387 [2023-08-30 14:49:42,126 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 14:49:42,130 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;@5837a5b9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 14:49:42,130 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-08-30 14:49:42,132 INFO L130 PetriNetUnfolder]: 1/3 cut-off events. [2023-08-30 14:49:42,132 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:49:42,132 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:49:42,132 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-30 14:49:42,133 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 14:49:42,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:49:42,137 INFO L85 PathProgramCache]: Analyzing trace with hash 42511, now seen corresponding path program 1 times [2023-08-30 14:49:42,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:49:42,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840376177] [2023-08-30 14:49:42,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:49:42,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:49:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:49:42,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:49:42,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:49:42,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840376177] [2023-08-30 14:49:42,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840376177] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:49:42,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:49:42,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:49:42,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445206407] [2023-08-30 14:49:42,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:49:42,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:49:42,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:49:42,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:49:42,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:49:42,420 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 705 [2023-08-30 14:49:42,424 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) [2023-08-30 14:49:42,424 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:49:42,424 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 705 [2023-08-30 14:49:42,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:49:42,573 INFO L130 PetriNetUnfolder]: 451/779 cut-off events. [2023-08-30 14:49:42,573 INFO L131 PetriNetUnfolder]: For 58/58 co-relation queries the response was YES. [2023-08-30 14:49:42,573 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. [2023-08-30 14:49:42,583 INFO L137 encePairwiseOnDemand]: 693/705 looper letters, 49 selfloop transitions, 2 changer transitions 2/53 dead transitions. [2023-08-30 14:49:42,583 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 53 transitions, 236 flow [2023-08-30 14:49:42,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:49:42,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:49:42,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 953 transitions. [2023-08-30 14:49:42,594 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45059101654846334 [2023-08-30 14:49:42,595 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 953 transitions. [2023-08-30 14:49:42,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 953 transitions. [2023-08-30 14:49:42,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:49:42,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 953 transitions. [2023-08-30 14:49:42,601 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) [2023-08-30 14:49:42,606 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) [2023-08-30 14:49:42,607 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) [2023-08-30 14:49:42,608 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 84 flow. Second operand 3 states and 953 transitions. [2023-08-30 14:49:42,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 53 transitions, 236 flow [2023-08-30 14:49:42,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 53 transitions, 220 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 14:49:42,612 INFO L231 Difference]: Finished difference. Result has 31 places, 28 transitions, 71 flow [2023-08-30 14:49:42,613 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} [2023-08-30 14:49:42,615 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -9 predicate places. [2023-08-30 14:49:42,616 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 28 transitions, 71 flow [2023-08-30 14:49:42,616 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) [2023-08-30 14:49:42,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:49:42,616 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:49:42,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 14:49:42,617 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 14:49:42,617 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:49:42,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1321106, now seen corresponding path program 1 times [2023-08-30 14:49:42,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:49:42,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219849332] [2023-08-30 14:49:42,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:49:42,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:49:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:49:42,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:49:42,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:49:42,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219849332] [2023-08-30 14:49:42,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219849332] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 14:49:42,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642410754] [2023-08-30 14:49:42,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:49:42,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:49:42,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:49:42,713 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 14:49:42,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 14:49:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:49:42,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 14:49:42,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 14:49:42,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:49:42,838 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 14:49:42,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642410754] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:49:42,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 14:49:42,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-08-30 14:49:42,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542128911] [2023-08-30 14:49:42,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:49:42,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 14:49:42,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:49:42,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 14:49:42,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 14:49:42,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 705 [2023-08-30 14:49:42,853 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) [2023-08-30 14:49:42,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:49:42,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 705 [2023-08-30 14:49:42,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:49:43,018 INFO L130 PetriNetUnfolder]: 451/776 cut-off events. [2023-08-30 14:49:43,019 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-08-30 14:49:43,019 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. [2023-08-30 14:49:43,022 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 48 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2023-08-30 14:49:43,022 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 50 transitions, 216 flow [2023-08-30 14:49:43,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 14:49:43,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 14:49:43,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1227 transitions. [2023-08-30 14:49:43,024 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4351063829787234 [2023-08-30 14:49:43,024 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1227 transitions. [2023-08-30 14:49:43,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1227 transitions. [2023-08-30 14:49:43,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:49:43,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1227 transitions. [2023-08-30 14:49:43,027 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) [2023-08-30 14:49:43,030 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) [2023-08-30 14:49:43,031 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) [2023-08-30 14:49:43,031 INFO L175 Difference]: Start difference. First operand has 31 places, 28 transitions, 71 flow. Second operand 4 states and 1227 transitions. [2023-08-30 14:49:43,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 50 transitions, 216 flow [2023-08-30 14:49:43,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 50 transitions, 214 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:49:43,032 INFO L231 Difference]: Finished difference. Result has 31 places, 27 transitions, 69 flow [2023-08-30 14:49:43,033 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} [2023-08-30 14:49:43,033 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -9 predicate places. [2023-08-30 14:49:43,033 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 27 transitions, 69 flow [2023-08-30 14:49:43,034 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) [2023-08-30 14:49:43,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:49:43,034 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:49:43,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-30 14:49:43,240 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 [2023-08-30 14:49:43,240 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 14:49:43,241 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:49:43,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1321107, now seen corresponding path program 1 times [2023-08-30 14:49:43,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:49:43,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508066675] [2023-08-30 14:49:43,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:49:43,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:49:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:49:43,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:49:43,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:49:43,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508066675] [2023-08-30 14:49:43,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508066675] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 14:49:43,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252553883] [2023-08-30 14:49:43,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:49:43,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:49:43,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:49:43,284 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 14:49:43,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-30 14:49:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:49:43,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 14:49:43,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 14:49:43,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:49:43,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 14:49:43,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:49:43,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252553883] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 14:49:43,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 14:49:43,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-08-30 14:49:43,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361566839] [2023-08-30 14:49:43,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 14:49:43,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 14:49:43,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:49:43,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 14:49:43,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-30 14:49:43,394 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 705 [2023-08-30 14:49:43,395 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) [2023-08-30 14:49:43,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:49:43,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 705 [2023-08-30 14:49:43,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:49:43,703 INFO L130 PetriNetUnfolder]: 1126/1937 cut-off events. [2023-08-30 14:49:43,704 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2023-08-30 14:49:43,705 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. [2023-08-30 14:49:43,709 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 117 selfloop transitions, 5 changer transitions 0/122 dead transitions. [2023-08-30 14:49:43,710 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 122 transitions, 521 flow [2023-08-30 14:49:43,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 14:49:43,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 14:49:43,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1889 transitions. [2023-08-30 14:49:43,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4465721040189125 [2023-08-30 14:49:43,714 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1889 transitions. [2023-08-30 14:49:43,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1889 transitions. [2023-08-30 14:49:43,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:49:43,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1889 transitions. [2023-08-30 14:49:43,718 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) [2023-08-30 14:49:43,722 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) [2023-08-30 14:49:43,723 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) [2023-08-30 14:49:43,723 INFO L175 Difference]: Start difference. First operand has 31 places, 27 transitions, 69 flow. Second operand 6 states and 1889 transitions. [2023-08-30 14:49:43,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 122 transitions, 521 flow [2023-08-30 14:49:43,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 122 transitions, 518 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 14:49:43,726 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 102 flow [2023-08-30 14:49:43,727 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} [2023-08-30 14:49:43,727 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2023-08-30 14:49:43,728 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 102 flow [2023-08-30 14:49:43,729 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) [2023-08-30 14:49:43,729 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:49:43,729 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 14:49:43,737 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-30 14:49:43,937 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 [2023-08-30 14:49:43,939 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 14:49:43,939 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:49:43,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1267539662, now seen corresponding path program 1 times [2023-08-30 14:49:43,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:49:43,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238876191] [2023-08-30 14:49:43,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:49:43,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:49:43,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:49:43,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:49:43,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:49:43,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238876191] [2023-08-30 14:49:43,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238876191] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:49:43,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:49:43,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:49:43,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867800398] [2023-08-30 14:49:43,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:49:43,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:49:43,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:49:43,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:49:43,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:49:43,991 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 705 [2023-08-30 14:49:43,992 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) [2023-08-30 14:49:43,992 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:49:43,992 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 705 [2023-08-30 14:49:43,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:49:44,153 INFO L130 PetriNetUnfolder]: 881/1522 cut-off events. [2023-08-30 14:49:44,153 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2023-08-30 14:49:44,154 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. [2023-08-30 14:49:44,158 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 27 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2023-08-30 14:49:44,158 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 28 transitions, 154 flow [2023-08-30 14:49:44,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:49:44,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:49:44,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 911 transitions. [2023-08-30 14:49:44,160 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4307328605200946 [2023-08-30 14:49:44,161 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 911 transitions. [2023-08-30 14:49:44,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 911 transitions. [2023-08-30 14:49:44,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:49:44,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 911 transitions. [2023-08-30 14:49:44,163 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) [2023-08-30 14:49:44,165 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) [2023-08-30 14:49:44,166 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) [2023-08-30 14:49:44,166 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 102 flow. Second operand 3 states and 911 transitions. [2023-08-30 14:49:44,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 28 transitions, 154 flow [2023-08-30 14:49:44,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 28 transitions, 146 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-30 14:49:44,167 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 92 flow [2023-08-30 14:49:44,168 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} [2023-08-30 14:49:44,168 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2023-08-30 14:49:44,168 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 92 flow [2023-08-30 14:49:44,169 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) [2023-08-30 14:49:44,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:49:44,169 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 14:49:44,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 14:49:44,169 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 14:49:44,169 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:49:44,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1267539676, now seen corresponding path program 1 times [2023-08-30 14:49:44,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:49:44,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767387631] [2023-08-30 14:49:44,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:49:44,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:49:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:49:44,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:49:44,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:49:44,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767387631] [2023-08-30 14:49:44,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767387631] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:49:44,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:49:44,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 14:49:44,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673794958] [2023-08-30 14:49:44,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:49:44,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:49:44,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:49:44,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:49:44,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:49:44,229 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 705 [2023-08-30 14:49:44,231 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) [2023-08-30 14:49:44,231 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:49:44,231 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 705 [2023-08-30 14:49:44,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:49:44,457 INFO L130 PetriNetUnfolder]: 1181/2052 cut-off events. [2023-08-30 14:49:44,458 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2023-08-30 14:49:44,459 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. [2023-08-30 14:49:44,464 INFO L137 encePairwiseOnDemand]: 699/705 looper letters, 40 selfloop transitions, 2 changer transitions 0/42 dead transitions. [2023-08-30 14:49:44,464 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 42 transitions, 206 flow [2023-08-30 14:49:44,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:49:44,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:49:44,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2023-08-30 14:49:44,466 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43546099290780144 [2023-08-30 14:49:44,466 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 921 transitions. [2023-08-30 14:49:44,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 921 transitions. [2023-08-30 14:49:44,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:49:44,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 921 transitions. [2023-08-30 14:49:44,468 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) [2023-08-30 14:49:44,471 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) [2023-08-30 14:49:44,472 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) [2023-08-30 14:49:44,472 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 92 flow. Second operand 3 states and 921 transitions. [2023-08-30 14:49:44,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 42 transitions, 206 flow [2023-08-30 14:49:44,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 42 transitions, 205 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:49:44,473 INFO L231 Difference]: Finished difference. Result has 38 places, 29 transitions, 109 flow [2023-08-30 14:49:44,473 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} [2023-08-30 14:49:44,474 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2023-08-30 14:49:44,474 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 109 flow [2023-08-30 14:49:44,474 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) [2023-08-30 14:49:44,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:49:44,475 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-08-30 14:49:44,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 14:49:44,475 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 14:49:44,475 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:49:44,475 INFO L85 PathProgramCache]: Analyzing trace with hash 705605328, now seen corresponding path program 2 times [2023-08-30 14:49:44,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:49:44,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97633741] [2023-08-30 14:49:44,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:49:44,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:49:44,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:49:44,525 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:49:44,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:49:44,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97633741] [2023-08-30 14:49:44,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97633741] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 14:49:44,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875807422] [2023-08-30 14:49:44,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 14:49:44,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:49:44,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:49:44,527 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) [2023-08-30 14:49:44,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-30 14:49:44,588 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 14:49:44,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 14:49:44,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-30 14:49:44,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 14:49:44,605 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-30 14:49:44,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 14:49:44,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875807422] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:49:44,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 14:49:44,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-08-30 14:49:44,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640433045] [2023-08-30 14:49:44,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:49:44,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:49:44,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:49:44,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:49:44,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-30 14:49:44,616 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 705 [2023-08-30 14:49:44,617 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) [2023-08-30 14:49:44,617 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:49:44,617 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 705 [2023-08-30 14:49:44,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:49:44,844 INFO L130 PetriNetUnfolder]: 1181/2051 cut-off events. [2023-08-30 14:49:44,844 INFO L131 PetriNetUnfolder]: For 428/428 co-relation queries the response was YES. [2023-08-30 14:49:44,845 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. [2023-08-30 14:49:44,850 INFO L137 encePairwiseOnDemand]: 703/705 looper letters, 27 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2023-08-30 14:49:44,850 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 28 transitions, 155 flow [2023-08-30 14:49:44,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:49:44,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:49:44,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 909 transitions. [2023-08-30 14:49:44,853 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4297872340425532 [2023-08-30 14:49:44,853 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 909 transitions. [2023-08-30 14:49:44,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 909 transitions. [2023-08-30 14:49:44,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:49:44,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 909 transitions. [2023-08-30 14:49:44,854 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) [2023-08-30 14:49:44,856 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) [2023-08-30 14:49:44,857 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) [2023-08-30 14:49:44,857 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 109 flow. Second operand 3 states and 909 transitions. [2023-08-30 14:49:44,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 28 transitions, 155 flow [2023-08-30 14:49:44,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 28 transitions, 143 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-08-30 14:49:44,858 INFO L231 Difference]: Finished difference. Result has 34 places, 28 transitions, 89 flow [2023-08-30 14:49:44,859 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} [2023-08-30 14:49:44,859 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -6 predicate places. [2023-08-30 14:49:44,859 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 89 flow [2023-08-30 14:49:44,860 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) [2023-08-30 14:49:44,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:49:44,860 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 14:49:44,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-30 14:49:45,063 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 [2023-08-30 14:49:45,066 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 14:49:45,066 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:49:45,066 INFO L85 PathProgramCache]: Analyzing trace with hash 639025070, now seen corresponding path program 1 times [2023-08-30 14:49:45,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:49:45,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84889642] [2023-08-30 14:49:45,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:49:45,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:49:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:49:45,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:49:45,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:49:45,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84889642] [2023-08-30 14:49:45,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84889642] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:49:45,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:49:45,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 14:49:45,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31650249] [2023-08-30 14:49:45,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:49:45,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:49:45,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:49:45,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:49:45,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:49:45,097 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 705 [2023-08-30 14:49:45,098 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) [2023-08-30 14:49:45,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:49:45,098 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 705 [2023-08-30 14:49:45,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:49:45,279 INFO L130 PetriNetUnfolder]: 1066/1856 cut-off events. [2023-08-30 14:49:45,279 INFO L131 PetriNetUnfolder]: For 280/280 co-relation queries the response was YES. [2023-08-30 14:49:45,280 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. [2023-08-30 14:49:45,285 INFO L137 encePairwiseOnDemand]: 703/705 looper letters, 26 selfloop transitions, 1 changer transitions 0/27 dead transitions. [2023-08-30 14:49:45,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 27 transitions, 139 flow [2023-08-30 14:49:45,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:49:45,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:49:45,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 902 transitions. [2023-08-30 14:49:45,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4264775413711584 [2023-08-30 14:49:45,288 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 902 transitions. [2023-08-30 14:49:45,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 902 transitions. [2023-08-30 14:49:45,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:49:45,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 902 transitions. [2023-08-30 14:49:45,290 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) [2023-08-30 14:49:45,292 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) [2023-08-30 14:49:45,292 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) [2023-08-30 14:49:45,292 INFO L175 Difference]: Start difference. First operand has 34 places, 28 transitions, 89 flow. Second operand 3 states and 902 transitions. [2023-08-30 14:49:45,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 27 transitions, 139 flow [2023-08-30 14:49:45,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 27 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:49:45,294 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 86 flow [2023-08-30 14:49:45,294 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} [2023-08-30 14:49:45,295 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -6 predicate places. [2023-08-30 14:49:45,295 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 86 flow [2023-08-30 14:49:45,296 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) [2023-08-30 14:49:45,296 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:49:45,296 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 14:49:45,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 14:49:45,296 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 14:49:45,297 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:49:45,297 INFO L85 PathProgramCache]: Analyzing trace with hash 639025090, now seen corresponding path program 1 times [2023-08-30 14:49:45,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:49:45,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722596485] [2023-08-30 14:49:45,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:49:45,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:49:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:49:45,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:49:45,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:49:45,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722596485] [2023-08-30 14:49:45,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722596485] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 14:49:45,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354393454] [2023-08-30 14:49:45,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:49:45,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:49:45,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:49:45,349 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) [2023-08-30 14:49:45,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-30 14:49:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:49:45,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 14:49:45,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 14:49:45,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 14:49:45,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 14:49:45,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354393454] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:49:45,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 14:49:45,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-30 14:49:45,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538049293] [2023-08-30 14:49:45,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:49:45,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:49:45,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:49:45,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:49:45,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 14:49:45,455 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 705 [2023-08-30 14:49:45,456 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) [2023-08-30 14:49:45,456 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:49:45,456 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 705 [2023-08-30 14:49:45,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:49:45,631 INFO L130 PetriNetUnfolder]: 853/1486 cut-off events. [2023-08-30 14:49:45,631 INFO L131 PetriNetUnfolder]: For 224/224 co-relation queries the response was YES. [2023-08-30 14:49:45,633 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. [2023-08-30 14:49:45,637 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 25 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2023-08-30 14:49:45,637 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 140 flow [2023-08-30 14:49:45,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:49:45,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:49:45,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 903 transitions. [2023-08-30 14:49:45,639 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4269503546099291 [2023-08-30 14:49:45,639 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 903 transitions. [2023-08-30 14:49:45,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 903 transitions. [2023-08-30 14:49:45,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:49:45,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 903 transitions. [2023-08-30 14:49:45,641 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) [2023-08-30 14:49:45,643 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) [2023-08-30 14:49:45,643 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) [2023-08-30 14:49:45,643 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 86 flow. Second operand 3 states and 903 transitions. [2023-08-30 14:49:45,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 140 flow [2023-08-30 14:49:45,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 27 transitions, 137 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 14:49:45,645 INFO L231 Difference]: Finished difference. Result has 36 places, 27 transitions, 91 flow [2023-08-30 14:49:45,645 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} [2023-08-30 14:49:45,645 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2023-08-30 14:49:45,645 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 91 flow [2023-08-30 14:49:45,646 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) [2023-08-30 14:49:45,646 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:49:45,646 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 14:49:45,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-30 14:49:45,850 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 [2023-08-30 14:49:45,851 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 14:49:45,851 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:49:45,851 INFO L85 PathProgramCache]: Analyzing trace with hash 332351685, now seen corresponding path program 1 times [2023-08-30 14:49:45,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:49:45,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144726426] [2023-08-30 14:49:45,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:49:45,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:49:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:49:45,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 14:49:45,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:49:45,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144726426] [2023-08-30 14:49:45,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144726426] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 14:49:45,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549151379] [2023-08-30 14:49:45,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:49:45,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:49:45,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:49:45,892 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) [2023-08-30 14:49:45,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-30 14:49:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:49:45,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-30 14:49:45,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 14:49:45,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 14:49:45,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 14:49:46,002 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 14:49:46,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549151379] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 14:49:46,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 14:49:46,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2023-08-30 14:49:46,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810813649] [2023-08-30 14:49:46,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 14:49:46,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 14:49:46,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:49:46,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 14:49:46,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-08-30 14:49:46,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 705 [2023-08-30 14:49:46,049 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) [2023-08-30 14:49:46,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:49:46,049 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 705 [2023-08-30 14:49:46,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:49:46,214 INFO L130 PetriNetUnfolder]: 547/958 cut-off events. [2023-08-30 14:49:46,214 INFO L131 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2023-08-30 14:49:46,215 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. [2023-08-30 14:49:46,221 INFO L137 encePairwiseOnDemand]: 697/705 looper letters, 47 selfloop transitions, 7 changer transitions 0/54 dead transitions. [2023-08-30 14:49:46,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 54 transitions, 259 flow [2023-08-30 14:49:46,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 14:49:46,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 14:49:46,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2067 transitions. [2023-08-30 14:49:46,225 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4188449848024316 [2023-08-30 14:49:46,225 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2067 transitions. [2023-08-30 14:49:46,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2067 transitions. [2023-08-30 14:49:46,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:49:46,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2067 transitions. [2023-08-30 14:49:46,228 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) [2023-08-30 14:49:46,241 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) [2023-08-30 14:49:46,242 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) [2023-08-30 14:49:46,242 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 91 flow. Second operand 7 states and 2067 transitions. [2023-08-30 14:49:46,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 54 transitions, 259 flow [2023-08-30 14:49:46,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 54 transitions, 251 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-30 14:49:46,244 INFO L231 Difference]: Finished difference. Result has 43 places, 28 transitions, 119 flow [2023-08-30 14:49:46,244 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} [2023-08-30 14:49:46,245 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2023-08-30 14:49:46,245 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 28 transitions, 119 flow [2023-08-30 14:49:46,245 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) [2023-08-30 14:49:46,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:49:46,245 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2023-08-30 14:49:46,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-30 14:49:46,449 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 [2023-08-30 14:49:46,450 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 14:49:46,450 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:49:46,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1654367495, now seen corresponding path program 1 times [2023-08-30 14:49:46,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:49:46,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650073908] [2023-08-30 14:49:46,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:49:46,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:49:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:49:46,493 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-30 14:49:46,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:49:46,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650073908] [2023-08-30 14:49:46,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650073908] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 14:49:46,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112576918] [2023-08-30 14:49:46,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:49:46,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:49:46,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:49:46,495 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) [2023-08-30 14:49:46,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-30 14:49:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:49:46,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 14:49:46,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 14:49:46,584 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-30 14:49:46,584 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 14:49:46,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112576918] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:49:46,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 14:49:46,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2023-08-30 14:49:46,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707677322] [2023-08-30 14:49:46,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:49:46,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:49:46,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:49:46,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:49:46,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-30 14:49:46,598 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 705 [2023-08-30 14:49:46,598 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) [2023-08-30 14:49:46,598 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:49:46,598 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 705 [2023-08-30 14:49:46,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:49:46,691 INFO L130 PetriNetUnfolder]: 435/766 cut-off events. [2023-08-30 14:49:46,691 INFO L131 PetriNetUnfolder]: For 410/410 co-relation queries the response was YES. [2023-08-30 14:49:46,692 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. [2023-08-30 14:49:46,694 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 25 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2023-08-30 14:49:46,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 26 transitions, 163 flow [2023-08-30 14:49:46,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:49:46,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:49:46,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 907 transitions. [2023-08-30 14:49:46,696 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42884160756501183 [2023-08-30 14:49:46,696 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 907 transitions. [2023-08-30 14:49:46,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 907 transitions. [2023-08-30 14:49:46,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:49:46,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 907 transitions. [2023-08-30 14:49:46,698 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) [2023-08-30 14:49:46,700 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) [2023-08-30 14:49:46,700 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) [2023-08-30 14:49:46,700 INFO L175 Difference]: Start difference. First operand has 43 places, 28 transitions, 119 flow. Second operand 3 states and 907 transitions. [2023-08-30 14:49:46,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 26 transitions, 163 flow [2023-08-30 14:49:46,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 26 transitions, 149 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-08-30 14:49:46,701 INFO L231 Difference]: Finished difference. Result has 38 places, 26 transitions, 99 flow [2023-08-30 14:49:46,702 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} [2023-08-30 14:49:46,702 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2023-08-30 14:49:46,702 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 26 transitions, 99 flow [2023-08-30 14:49:46,702 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) [2023-08-30 14:49:46,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:49:46,703 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2023-08-30 14:49:46,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-30 14:49:46,907 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 [2023-08-30 14:49:46,907 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 14:49:46,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:49:46,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1654367492, now seen corresponding path program 2 times [2023-08-30 14:49:46,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:49:46,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731230943] [2023-08-30 14:49:46,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:49:46,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:49:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:49:46,950 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-30 14:49:46,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:49:46,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731230943] [2023-08-30 14:49:46,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731230943] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 14:49:46,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988652927] [2023-08-30 14:49:46,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 14:49:46,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:49:46,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:49:46,952 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) [2023-08-30 14:49:46,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-30 14:49:47,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 14:49:47,024 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 14:49:47,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-30 14:49:47,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 14:49:47,036 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-30 14:49:47,036 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 14:49:47,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988652927] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:49:47,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 14:49:47,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2023-08-30 14:49:47,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457977986] [2023-08-30 14:49:47,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:49:47,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:49:47,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:49:47,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:49:47,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-30 14:49:47,048 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 705 [2023-08-30 14:49:47,049 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) [2023-08-30 14:49:47,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:49:47,049 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 705 [2023-08-30 14:49:47,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:49:47,128 INFO L130 PetriNetUnfolder]: 335/594 cut-off events. [2023-08-30 14:49:47,128 INFO L131 PetriNetUnfolder]: For 192/192 co-relation queries the response was YES. [2023-08-30 14:49:47,129 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. [2023-08-30 14:49:47,130 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-30 14:49:47,130 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 24 transitions, 139 flow [2023-08-30 14:49:47,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:49:47,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:49:47,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 905 transitions. [2023-08-30 14:49:47,133 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42789598108747046 [2023-08-30 14:49:47,133 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 905 transitions. [2023-08-30 14:49:47,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 905 transitions. [2023-08-30 14:49:47,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:49:47,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 905 transitions. [2023-08-30 14:49:47,135 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) [2023-08-30 14:49:47,136 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) [2023-08-30 14:49:47,137 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) [2023-08-30 14:49:47,137 INFO L175 Difference]: Start difference. First operand has 38 places, 26 transitions, 99 flow. Second operand 3 states and 905 transitions. [2023-08-30 14:49:47,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 24 transitions, 139 flow [2023-08-30 14:49:47,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 24 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:49:47,138 INFO L231 Difference]: Finished difference. Result has 37 places, 24 transitions, 92 flow [2023-08-30 14:49:47,138 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} [2023-08-30 14:49:47,139 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2023-08-30 14:49:47,139 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 24 transitions, 92 flow [2023-08-30 14:49:47,139 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) [2023-08-30 14:49:47,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:49:47,139 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2023-08-30 14:49:47,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-08-30 14:49:47,344 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 [2023-08-30 14:49:47,344 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 14:49:47,344 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:49:47,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1654367496, now seen corresponding path program 1 times [2023-08-30 14:49:47,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:49:47,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571408351] [2023-08-30 14:49:47,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:49:47,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:49:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:49:47,408 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-30 14:49:47,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:49:47,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571408351] [2023-08-30 14:49:47,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571408351] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 14:49:47,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604439568] [2023-08-30 14:49:47,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:49:47,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:49:47,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:49:47,410 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) [2023-08-30 14:49:47,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-30 14:49:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:49:47,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-30 14:49:47,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 14:49:47,503 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-30 14:49:47,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 14:49:47,551 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-30 14:49:47,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604439568] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 14:49:47,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 14:49:47,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2023-08-30 14:49:47,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552380377] [2023-08-30 14:49:47,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 14:49:47,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 14:49:47,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:49:47,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 14:49:47,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 14:49:47,567 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 705 [2023-08-30 14:49:47,569 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) [2023-08-30 14:49:47,569 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:49:47,569 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 705 [2023-08-30 14:49:47,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:49:47,712 INFO L130 PetriNetUnfolder]: 423/750 cut-off events. [2023-08-30 14:49:47,713 INFO L131 PetriNetUnfolder]: For 94/94 co-relation queries the response was YES. [2023-08-30 14:49:47,713 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. [2023-08-30 14:49:47,715 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 54 selfloop transitions, 4 changer transitions 0/58 dead transitions. [2023-08-30 14:49:47,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 58 transitions, 286 flow [2023-08-30 14:49:47,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 14:49:47,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 14:49:47,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1520 transitions. [2023-08-30 14:49:47,719 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43120567375886526 [2023-08-30 14:49:47,719 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1520 transitions. [2023-08-30 14:49:47,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1520 transitions. [2023-08-30 14:49:47,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:49:47,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1520 transitions. [2023-08-30 14:49:47,722 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) [2023-08-30 14:49:47,725 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) [2023-08-30 14:49:47,726 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) [2023-08-30 14:49:47,726 INFO L175 Difference]: Start difference. First operand has 37 places, 24 transitions, 92 flow. Second operand 5 states and 1520 transitions. [2023-08-30 14:49:47,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 58 transitions, 286 flow [2023-08-30 14:49:47,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 58 transitions, 285 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:49:47,728 INFO L231 Difference]: Finished difference. Result has 41 places, 25 transitions, 111 flow [2023-08-30 14:49:47,728 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} [2023-08-30 14:49:47,729 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2023-08-30 14:49:47,729 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 25 transitions, 111 flow [2023-08-30 14:49:47,730 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) [2023-08-30 14:49:47,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:49:47,730 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 14:49:47,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-08-30 14:49:47,934 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 [2023-08-30 14:49:47,935 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 14:49:47,935 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:49:47,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1655049987, now seen corresponding path program 1 times [2023-08-30 14:49:47,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:49:47,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060485807] [2023-08-30 14:49:47,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:49:47,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:49:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:49:47,969 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-30 14:49:47,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:49:47,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060485807] [2023-08-30 14:49:47,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060485807] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:49:47,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:49:47,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 14:49:47,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732337672] [2023-08-30 14:49:47,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:49:47,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:49:47,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:49:47,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:49:47,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:49:47,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 705 [2023-08-30 14:49:47,979 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) [2023-08-30 14:49:47,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:49:47,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 705 [2023-08-30 14:49:47,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:49:48,118 INFO L130 PetriNetUnfolder]: 575/1014 cut-off events. [2023-08-30 14:49:48,119 INFO L131 PetriNetUnfolder]: For 768/768 co-relation queries the response was YES. [2023-08-30 14:49:48,120 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. [2023-08-30 14:49:48,124 INFO L137 encePairwiseOnDemand]: 701/705 looper letters, 35 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-08-30 14:49:48,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 37 transitions, 244 flow [2023-08-30 14:49:48,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:49:48,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:49:48,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 908 transitions. [2023-08-30 14:49:48,127 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4293144208037825 [2023-08-30 14:49:48,127 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 908 transitions. [2023-08-30 14:49:48,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 908 transitions. [2023-08-30 14:49:48,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:49:48,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 908 transitions. [2023-08-30 14:49:48,128 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) [2023-08-30 14:49:48,130 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) [2023-08-30 14:49:48,130 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) [2023-08-30 14:49:48,130 INFO L175 Difference]: Start difference. First operand has 41 places, 25 transitions, 111 flow. Second operand 3 states and 908 transitions. [2023-08-30 14:49:48,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 37 transitions, 244 flow [2023-08-30 14:49:48,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 224 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-30 14:49:48,132 INFO L231 Difference]: Finished difference. Result has 41 places, 26 transitions, 115 flow [2023-08-30 14:49:48,132 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} [2023-08-30 14:49:48,133 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2023-08-30 14:49:48,133 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 26 transitions, 115 flow [2023-08-30 14:49:48,133 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) [2023-08-30 14:49:48,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:49:48,133 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1] [2023-08-30 14:49:48,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-30 14:49:48,133 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 14:49:48,134 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:49:48,134 INFO L85 PathProgramCache]: Analyzing trace with hash 254216001, now seen corresponding path program 2 times [2023-08-30 14:49:48,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:49:48,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211261813] [2023-08-30 14:49:48,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:49:48,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:49:48,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:49:48,215 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-08-30 14:49:48,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:49:48,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211261813] [2023-08-30 14:49:48,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211261813] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:49:48,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:49:48,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:49:48,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665276115] [2023-08-30 14:49:48,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:49:48,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:49:48,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:49:48,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:49:48,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:49:48,231 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 705 [2023-08-30 14:49:48,232 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) [2023-08-30 14:49:48,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:49:48,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 705 [2023-08-30 14:49:48,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:49:48,332 INFO L130 PetriNetUnfolder]: 459/814 cut-off events. [2023-08-30 14:49:48,332 INFO L131 PetriNetUnfolder]: For 534/534 co-relation queries the response was YES. [2023-08-30 14:49:48,333 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. [2023-08-30 14:49:48,334 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 22 selfloop transitions, 1 changer transitions 1/24 dead transitions. [2023-08-30 14:49:48,335 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 24 transitions, 151 flow [2023-08-30 14:49:48,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:49:48,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:49:48,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 903 transitions. [2023-08-30 14:49:48,337 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4269503546099291 [2023-08-30 14:49:48,337 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 903 transitions. [2023-08-30 14:49:48,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 903 transitions. [2023-08-30 14:49:48,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:49:48,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 903 transitions. [2023-08-30 14:49:48,338 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) [2023-08-30 14:49:48,340 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) [2023-08-30 14:49:48,340 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) [2023-08-30 14:49:48,340 INFO L175 Difference]: Start difference. First operand has 41 places, 26 transitions, 115 flow. Second operand 3 states and 903 transitions. [2023-08-30 14:49:48,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 24 transitions, 151 flow [2023-08-30 14:49:48,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 24 transitions, 149 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:49:48,341 INFO L231 Difference]: Finished difference. Result has 40 places, 23 transitions, 101 flow [2023-08-30 14:49:48,342 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} [2023-08-30 14:49:48,342 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2023-08-30 14:49:48,342 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 23 transitions, 101 flow [2023-08-30 14:49:48,342 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) [2023-08-30 14:49:48,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:49:48,342 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 14:49:48,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-30 14:49:48,342 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 14:49:48,343 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:49:48,343 INFO L85 PathProgramCache]: Analyzing trace with hash 233059932, now seen corresponding path program 1 times [2023-08-30 14:49:48,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:49:48,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340255530] [2023-08-30 14:49:48,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:49:48,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:49:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:49:48,366 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-30 14:49:48,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:49:48,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340255530] [2023-08-30 14:49:48,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340255530] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:49:48,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:49:48,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 14:49:48,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747016643] [2023-08-30 14:49:48,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:49:48,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:49:48,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:49:48,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:49:48,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:49:48,375 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 705 [2023-08-30 14:49:48,375 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) [2023-08-30 14:49:48,375 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:49:48,375 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 705 [2023-08-30 14:49:48,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:49:48,425 INFO L130 PetriNetUnfolder]: 249/448 cut-off events. [2023-08-30 14:49:48,425 INFO L131 PetriNetUnfolder]: For 248/248 co-relation queries the response was YES. [2023-08-30 14:49:48,426 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. [2023-08-30 14:49:48,426 INFO L137 encePairwiseOnDemand]: 703/705 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2023-08-30 14:49:48,426 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 22 transitions, 141 flow [2023-08-30 14:49:48,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:49:48,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:49:48,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 894 transitions. [2023-08-30 14:49:48,428 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4226950354609929 [2023-08-30 14:49:48,428 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 894 transitions. [2023-08-30 14:49:48,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 894 transitions. [2023-08-30 14:49:48,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:49:48,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 894 transitions. [2023-08-30 14:49:48,434 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) [2023-08-30 14:49:48,436 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) [2023-08-30 14:49:48,436 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) [2023-08-30 14:49:48,436 INFO L175 Difference]: Start difference. First operand has 40 places, 23 transitions, 101 flow. Second operand 3 states and 894 transitions. [2023-08-30 14:49:48,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 22 transitions, 141 flow [2023-08-30 14:49:48,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 22 transitions, 138 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 14:49:48,437 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2023-08-30 14:49:48,437 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} [2023-08-30 14:49:48,438 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2023-08-30 14:49:48,438 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2023-08-30 14:49:48,438 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) [2023-08-30 14:49:48,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 38 remaining) [2023-08-30 14:49:48,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 38 remaining) [2023-08-30 14:49:48,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 38 remaining) [2023-08-30 14:49:48,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 38 remaining) [2023-08-30 14:49:48,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 38 remaining) [2023-08-30 14:49:48,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 38 remaining) [2023-08-30 14:49:48,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 38 remaining) [2023-08-30 14:49:48,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 38 remaining) [2023-08-30 14:49:48,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 38 remaining) [2023-08-30 14:49:48,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 38 remaining) [2023-08-30 14:49:48,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 38 remaining) [2023-08-30 14:49:48,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 38 remaining) [2023-08-30 14:49:48,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 38 remaining) [2023-08-30 14:49:48,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 38 remaining) [2023-08-30 14:49:48,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 38 remaining) [2023-08-30 14:49:48,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 38 remaining) [2023-08-30 14:49:48,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 38 remaining) [2023-08-30 14:49:48,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 38 remaining) [2023-08-30 14:49:48,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 38 remaining) [2023-08-30 14:49:48,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 38 remaining) [2023-08-30 14:49:48,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 38 remaining) [2023-08-30 14:49:48,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 38 remaining) [2023-08-30 14:49:48,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 38 remaining) [2023-08-30 14:49:48,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 38 remaining) [2023-08-30 14:49:48,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 38 remaining) [2023-08-30 14:49:48,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 38 remaining) [2023-08-30 14:49:48,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 38 remaining) [2023-08-30 14:49:48,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 38 remaining) [2023-08-30 14:49:48,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 38 remaining) [2023-08-30 14:49:48,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 38 remaining) [2023-08-30 14:49:48,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 38 remaining) [2023-08-30 14:49:48,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 38 remaining) [2023-08-30 14:49:48,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 38 remaining) [2023-08-30 14:49:48,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 38 remaining) [2023-08-30 14:49:48,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 38 remaining) [2023-08-30 14:49:48,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 38 remaining) [2023-08-30 14:49:48,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 38 remaining) [2023-08-30 14:49:48,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 38 remaining) [2023-08-30 14:49:48,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-30 14:49:48,443 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 14:49:48,446 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 14:49:48,446 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 14:49:48,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 02:49:48 BasicIcfg [2023-08-30 14:49:48,448 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 14:49:48,448 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 14:49:48,448 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 14:49:48,448 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 14:49:48,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:49:30" (3/4) ... [2023-08-30 14:49:48,450 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 14:49:48,453 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-30 14:49:48,453 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-30 14:49:48,456 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-30 14:49:48,456 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 14:49:48,456 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 14:49:48,456 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 14:49:48,477 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 14:49:48,477 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 14:49:48,478 INFO L158 Benchmark]: Toolchain (without parser) took 18305.84ms. Allocated memory was 75.5MB in the beginning and 362.8MB in the end (delta: 287.3MB). Free memory was 53.5MB in the beginning and 320.3MB in the end (delta: -266.8MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2023-08-30 14:49:48,478 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 75.5MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 14:49:48,478 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.33ms. Allocated memory is still 75.5MB. Free memory was 53.4MB in the beginning and 41.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 14:49:48,478 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.04ms. Allocated memory is still 75.5MB. Free memory was 41.0MB in the beginning and 38.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 14:49:48,478 INFO L158 Benchmark]: Boogie Preprocessor took 50.07ms. Allocated memory is still 75.5MB. Free memory was 38.5MB in the beginning and 36.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 14:49:48,478 INFO L158 Benchmark]: RCFGBuilder took 516.73ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 36.6MB in the beginning and 48.7MB in the end (delta: -12.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-08-30 14:49:48,479 INFO L158 Benchmark]: TraceAbstraction took 17471.29ms. Allocated memory was 92.3MB in the beginning and 362.8MB in the end (delta: 270.5MB). Free memory was 48.0MB in the beginning and 323.5MB in the end (delta: -275.5MB). Peak memory consumption was 206.2MB. Max. memory is 16.1GB. [2023-08-30 14:49:48,479 INFO L158 Benchmark]: Witness Printer took 29.39ms. Allocated memory is still 362.8MB. Free memory was 323.5MB in the beginning and 320.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 14:49:48,480 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 75.5MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 180.33ms. Allocated memory is still 75.5MB. Free memory was 53.4MB in the beginning and 41.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.04ms. Allocated memory is still 75.5MB. Free memory was 41.0MB in the beginning and 38.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.07ms. Allocated memory is still 75.5MB. Free memory was 38.5MB in the beginning and 36.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 516.73ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 36.6MB in the beginning and 48.7MB in the end (delta: -12.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 17471.29ms. Allocated memory was 92.3MB in the beginning and 362.8MB in the end (delta: 270.5MB). Free memory was 48.0MB in the beginning and 323.5MB in the end (delta: -275.5MB). Peak memory consumption was 206.2MB. Max. memory is 16.1GB. * Witness Printer took 29.39ms. Allocated memory is still 362.8MB. Free memory was 323.5MB in the beginning and 320.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.8s, 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: 17.3s, OverallIterations: 15, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 878 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 643 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 0.6s 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, 0.2s SatisfiabilityAnalysisTime, 0.8s 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! [2023-08-30 14:49:48,493 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