./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix033_tso.oepc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --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/pthread-wmm/mix033_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e61e21f5d7e6e4d5f8f06eb5177c457338190644d81fa4e1ee7a1000b79020da --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 08:42:48,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:42:48,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:42:48,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:42:48,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:42:48,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:42:48,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:42:48,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:42:48,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:42:48,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:42:48,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:42:48,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:42:48,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:42:48,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:42:48,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:42:48,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:42:48,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:42:48,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:42:48,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:42:48,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:42:48,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:42:48,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:42:48,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:42:48,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:42:48,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:42:48,806 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:42:48,806 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:42:48,807 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:42:48,807 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:42:48,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:42:48,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:42:48,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:42:48,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:42:48,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:42:48,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:42:48,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:42:48,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:42:48,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:42:48,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:42:48,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:42:48,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:42:48,821 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:42:48,843 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:42:48,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:42:48,844 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:42:48,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:42:48,845 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:42:48,845 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:42:48,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:42:48,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:42:48,846 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:42:48,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:42:48,847 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:42:48,847 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:42:48,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:42:48,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:42:48,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:42:48,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:42:48,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:42:48,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:42:48,848 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:42:48,849 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:42:48,849 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:42:48,849 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:42:48,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:42:48,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:42:48,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:42:48,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:42:48,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:42:48,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:42:48,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:42:48,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:42:48,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:42:48,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:42:48,851 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:42:48,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:42:48,851 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:42:48,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:42:48,851 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:42:48,851 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e61e21f5d7e6e4d5f8f06eb5177c457338190644d81fa4e1ee7a1000b79020da Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:42:49,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:42:49,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:42:49,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:42:49,173 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:42:49,173 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:42:49,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix033_tso.oepc.i [2023-08-30 08:42:50,413 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:42:50,655 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:42:50,656 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix033_tso.oepc.i [2023-08-30 08:42:50,675 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c4998910/292edfe011f74ab3b71300468c6e4876/FLAGe1321119e [2023-08-30 08:42:50,690 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c4998910/292edfe011f74ab3b71300468c6e4876 [2023-08-30 08:42:50,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:42:50,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:42:50,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:42:50,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:42:50,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:42:50,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:42:50" (1/1) ... [2023-08-30 08:42:50,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@509fdb6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:42:50, skipping insertion in model container [2023-08-30 08:42:50,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:42:50" (1/1) ... [2023-08-30 08:42:50,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:42:50,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:42:50,869 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix033_tso.oepc.i[949,962] [2023-08-30 08:42:51,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:42:51,109 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:42:51,119 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix033_tso.oepc.i[949,962] [2023-08-30 08:42:51,171 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:42:51,210 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:42:51,210 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:42:51,216 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:42:51,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:42:51 WrapperNode [2023-08-30 08:42:51,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:42:51,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:42:51,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:42:51,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:42:51,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:42:51" (1/1) ... [2023-08-30 08:42:51,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:42:51" (1/1) ... [2023-08-30 08:42:51,292 INFO L138 Inliner]: procedures = 176, calls = 62, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 157 [2023-08-30 08:42:51,293 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:42:51,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:42:51,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:42:51,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:42:51,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:42:51" (1/1) ... [2023-08-30 08:42:51,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:42:51" (1/1) ... [2023-08-30 08:42:51,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:42:51" (1/1) ... [2023-08-30 08:42:51,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:42:51" (1/1) ... [2023-08-30 08:42:51,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:42:51" (1/1) ... [2023-08-30 08:42:51,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:42:51" (1/1) ... [2023-08-30 08:42:51,353 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:42:51" (1/1) ... [2023-08-30 08:42:51,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:42:51" (1/1) ... [2023-08-30 08:42:51,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:42:51,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:42:51,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:42:51,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:42:51,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:42:51" (1/1) ... [2023-08-30 08:42:51,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:42:51,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:42:51,394 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 08:42:51,421 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 08:42:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:42:51,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:42:51,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:42:51,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:42:51,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:42:51,436 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 08:42:51,436 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 08:42:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 08:42:51,437 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 08:42:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 08:42:51,437 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 08:42:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:42:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:42:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:42:51,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:42:51,439 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 08:42:51,586 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:42:51,588 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:42:51,864 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:42:51,998 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:42:51,998 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:42:52,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:42:52 BoogieIcfgContainer [2023-08-30 08:42:52,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:42:52,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:42:52,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:42:52,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:42:52,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:42:50" (1/3) ... [2023-08-30 08:42:52,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad58902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:42:52, skipping insertion in model container [2023-08-30 08:42:52,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:42:51" (2/3) ... [2023-08-30 08:42:52,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad58902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:42:52, skipping insertion in model container [2023-08-30 08:42:52,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:42:52" (3/3) ... [2023-08-30 08:42:52,015 INFO L112 eAbstractionObserver]: Analyzing ICFG mix033_tso.oepc.i [2023-08-30 08:42:52,022 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:42:52,030 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:42:52,030 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 08:42:52,031 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:42:52,097 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 08:42:52,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 120 transitions, 255 flow [2023-08-30 08:42:52,215 INFO L130 PetriNetUnfolder]: 2/117 cut-off events. [2023-08-30 08:42:52,215 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:42:52,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 117 events. 2/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2023-08-30 08:42:52,221 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 120 transitions, 255 flow [2023-08-30 08:42:52,231 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 125 places, 117 transitions, 243 flow [2023-08-30 08:42:52,235 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:42:52,255 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 117 transitions, 243 flow [2023-08-30 08:42:52,257 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 117 transitions, 243 flow [2023-08-30 08:42:52,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 125 places, 117 transitions, 243 flow [2023-08-30 08:42:52,296 INFO L130 PetriNetUnfolder]: 2/117 cut-off events. [2023-08-30 08:42:52,297 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:42:52,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 117 events. 2/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2023-08-30 08:42:52,301 INFO L119 LiptonReduction]: Number of co-enabled transitions 2780 [2023-08-30 08:42:56,018 INFO L134 LiptonReduction]: Checked pairs total: 10353 [2023-08-30 08:42:56,018 INFO L136 LiptonReduction]: Total number of compositions: 95 [2023-08-30 08:42:56,037 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:42:56,044 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;@6d7b96fd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:42:56,045 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-30 08:42:56,081 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 08:42:56,081 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:42:56,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:42:56,082 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 08:42:56,082 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 08:42:56,086 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:42:56,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1769814046, now seen corresponding path program 1 times [2023-08-30 08:42:56,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:42:56,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367249231] [2023-08-30 08:42:56,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:42:56,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:42:56,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:42:56,368 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 08:42:56,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:42:56,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367249231] [2023-08-30 08:42:56,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367249231] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:42:56,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:42:56,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:42:56,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727050736] [2023-08-30 08:42:56,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:42:56,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:42:56,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:42:56,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:42:56,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:42:56,405 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 215 [2023-08-30 08:42:56,408 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 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 08:42:56,408 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:42:56,408 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 215 [2023-08-30 08:42:56,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:42:56,774 INFO L130 PetriNetUnfolder]: 1271/2043 cut-off events. [2023-08-30 08:42:56,774 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-30 08:42:56,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4118 conditions, 2043 events. 1271/2043 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 10438 event pairs, 543 based on Foata normal form. 138/1620 useless extension candidates. Maximal degree in co-relation 4107. Up to 1757 conditions per place. [2023-08-30 08:42:56,793 INFO L137 encePairwiseOnDemand]: 203/215 looper letters, 38 selfloop transitions, 4 changer transitions 0/46 dead transitions. [2023-08-30 08:42:56,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 46 transitions, 191 flow [2023-08-30 08:42:56,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:42:56,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:42:56,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2023-08-30 08:42:56,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5348837209302325 [2023-08-30 08:42:56,811 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 345 transitions. [2023-08-30 08:42:56,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 345 transitions. [2023-08-30 08:42:56,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:42:56,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 345 transitions. [2023-08-30 08:42:56,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 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 08:42:56,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 0 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 08:42:56,827 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 0 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 08:42:56,828 INFO L175 Difference]: Start difference. First operand has 41 places, 32 transitions, 73 flow. Second operand 3 states and 345 transitions. [2023-08-30 08:42:56,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 46 transitions, 191 flow [2023-08-30 08:42:56,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 46 transitions, 186 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 08:42:56,834 INFO L231 Difference]: Finished difference. Result has 41 places, 34 transitions, 106 flow [2023-08-30 08:42:56,836 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=41, PETRI_TRANSITIONS=34} [2023-08-30 08:42:56,842 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 0 predicate places. [2023-08-30 08:42:56,850 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 34 transitions, 106 flow [2023-08-30 08:42:56,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 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 08:42:56,853 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:42:56,853 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:42:56,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:42:56,854 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 08:42:56,855 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:42:56,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1383949893, now seen corresponding path program 1 times [2023-08-30 08:42:56,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:42:56,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648196794] [2023-08-30 08:42:56,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:42:56,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:42:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:42:57,038 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 08:42:57,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:42:57,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648196794] [2023-08-30 08:42:57,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648196794] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:42:57,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:42:57,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:42:57,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120105516] [2023-08-30 08:42:57,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:42:57,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:42:57,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:42:57,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:42:57,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:42:57,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 215 [2023-08-30 08:42:57,053 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 34 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 100.75) internal successors, (403), 4 states have internal predecessors, (403), 0 states have call successors, (0), 0 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 08:42:57,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:42:57,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 215 [2023-08-30 08:42:57,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:42:57,266 INFO L130 PetriNetUnfolder]: 494/882 cut-off events. [2023-08-30 08:42:57,266 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2023-08-30 08:42:57,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2139 conditions, 882 events. 494/882 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4137 event pairs, 175 based on Foata normal form. 59/824 useless extension candidates. Maximal degree in co-relation 2128. Up to 374 conditions per place. [2023-08-30 08:42:57,272 INFO L137 encePairwiseOnDemand]: 204/215 looper letters, 48 selfloop transitions, 10 changer transitions 3/65 dead transitions. [2023-08-30 08:42:57,272 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 65 transitions, 308 flow [2023-08-30 08:42:57,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:42:57,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:42:57,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 457 transitions. [2023-08-30 08:42:57,274 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5313953488372093 [2023-08-30 08:42:57,274 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 457 transitions. [2023-08-30 08:42:57,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 457 transitions. [2023-08-30 08:42:57,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:42:57,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 457 transitions. [2023-08-30 08:42:57,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 0 states have call successors, (0), 0 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 08:42:57,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 0 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 08:42:57,278 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 0 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 08:42:57,278 INFO L175 Difference]: Start difference. First operand has 41 places, 34 transitions, 106 flow. Second operand 4 states and 457 transitions. [2023-08-30 08:42:57,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 65 transitions, 308 flow [2023-08-30 08:42:57,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 65 transitions, 304 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:42:57,281 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 164 flow [2023-08-30 08:42:57,281 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2023-08-30 08:42:57,281 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 4 predicate places. [2023-08-30 08:42:57,282 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 164 flow [2023-08-30 08:42:57,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.75) internal successors, (403), 4 states have internal predecessors, (403), 0 states have call successors, (0), 0 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 08:42:57,282 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:42:57,282 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:42:57,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:42:57,282 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 08:42:57,283 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:42:57,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1383949892, now seen corresponding path program 1 times [2023-08-30 08:42:57,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:42:57,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670184674] [2023-08-30 08:42:57,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:42:57,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:42:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:42:57,426 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 08:42:57,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:42:57,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670184674] [2023-08-30 08:42:57,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670184674] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:42:57,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:42:57,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:42:57,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152729] [2023-08-30 08:42:57,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:42:57,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:42:57,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:42:57,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:42:57,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:42:57,443 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 215 [2023-08-30 08:42:57,443 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 100.75) internal successors, (403), 4 states have internal predecessors, (403), 0 states have call successors, (0), 0 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 08:42:57,444 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:42:57,444 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 215 [2023-08-30 08:42:57,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:42:57,600 INFO L130 PetriNetUnfolder]: 395/691 cut-off events. [2023-08-30 08:42:57,601 INFO L131 PetriNetUnfolder]: For 607/607 co-relation queries the response was YES. [2023-08-30 08:42:57,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1767 conditions, 691 events. 395/691 cut-off events. For 607/607 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3062 event pairs, 165 based on Foata normal form. 62/728 useless extension candidates. Maximal degree in co-relation 1753. Up to 404 conditions per place. [2023-08-30 08:42:57,605 INFO L137 encePairwiseOnDemand]: 208/215 looper letters, 35 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2023-08-30 08:42:57,605 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 43 transitions, 228 flow [2023-08-30 08:42:57,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:42:57,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:42:57,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 434 transitions. [2023-08-30 08:42:57,607 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5046511627906977 [2023-08-30 08:42:57,607 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 434 transitions. [2023-08-30 08:42:57,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 434 transitions. [2023-08-30 08:42:57,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:42:57,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 434 transitions. [2023-08-30 08:42:57,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 0 states have call successors, (0), 0 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 08:42:57,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 0 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 08:42:57,611 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 0 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 08:42:57,611 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 164 flow. Second operand 4 states and 434 transitions. [2023-08-30 08:42:57,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 43 transitions, 228 flow [2023-08-30 08:42:57,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 43 transitions, 210 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-30 08:42:57,615 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 112 flow [2023-08-30 08:42:57,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2023-08-30 08:42:57,616 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2023-08-30 08:42:57,616 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 112 flow [2023-08-30 08:42:57,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.75) internal successors, (403), 4 states have internal predecessors, (403), 0 states have call successors, (0), 0 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 08:42:57,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:42:57,617 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:42:57,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:42:57,617 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 08:42:57,618 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:42:57,618 INFO L85 PathProgramCache]: Analyzing trace with hash 937185969, now seen corresponding path program 1 times [2023-08-30 08:42:57,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:42:57,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104882873] [2023-08-30 08:42:57,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:42:57,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:42:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:42:57,754 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 08:42:57,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:42:57,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104882873] [2023-08-30 08:42:57,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104882873] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:42:57,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:42:57,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:42:57,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214818459] [2023-08-30 08:42:57,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:42:57,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:42:57,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:42:57,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:42:57,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:42:57,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 215 [2023-08-30 08:42:57,770 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 101.2) internal successors, (506), 5 states have internal predecessors, (506), 0 states have call successors, (0), 0 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 08:42:57,770 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:42:57,770 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 215 [2023-08-30 08:42:57,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:42:57,904 INFO L130 PetriNetUnfolder]: 352/590 cut-off events. [2023-08-30 08:42:57,905 INFO L131 PetriNetUnfolder]: For 451/451 co-relation queries the response was YES. [2023-08-30 08:42:57,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1496 conditions, 590 events. 352/590 cut-off events. For 451/451 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2567 event pairs, 153 based on Foata normal form. 16/582 useless extension candidates. Maximal degree in co-relation 1483. Up to 256 conditions per place. [2023-08-30 08:42:57,907 INFO L137 encePairwiseOnDemand]: 207/215 looper letters, 0 selfloop transitions, 0 changer transitions 46/46 dead transitions. [2023-08-30 08:42:57,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 46 transitions, 216 flow [2023-08-30 08:42:57,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:42:57,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:42:57,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 536 transitions. [2023-08-30 08:42:57,910 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4986046511627907 [2023-08-30 08:42:57,910 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 536 transitions. [2023-08-30 08:42:57,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 536 transitions. [2023-08-30 08:42:57,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:42:57,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 536 transitions. [2023-08-30 08:42:57,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.2) internal successors, (536), 5 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:42:57,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 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 08:42:57,915 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 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 08:42:57,915 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 112 flow. Second operand 5 states and 536 transitions. [2023-08-30 08:42:57,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 46 transitions, 216 flow [2023-08-30 08:42:57,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 46 transitions, 201 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 08:42:57,918 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-30 08:42:57,918 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-08-30 08:42:57,920 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -6 predicate places. [2023-08-30 08:42:57,920 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-30 08:42:57,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.2) internal successors, (506), 5 states have internal predecessors, (506), 0 states have call successors, (0), 0 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 08:42:57,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-08-30 08:42:57,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-08-30 08:42:57,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-08-30 08:42:57,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-08-30 08:42:57,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-08-30 08:42:57,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-08-30 08:42:57,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-30 08:42:57,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-08-30 08:42:57,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-08-30 08:42:57,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-08-30 08:42:57,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-08-30 08:42:57,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-08-30 08:42:57,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-08-30 08:42:57,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-08-30 08:42:57,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-08-30 08:42:57,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:42:57,926 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-30 08:42:57,932 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:42:57,933 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:42:57,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:42:57 BasicIcfg [2023-08-30 08:42:57,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:42:57,941 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:42:57,941 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:42:57,941 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:42:57,941 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:42:52" (3/4) ... [2023-08-30 08:42:57,944 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:42:57,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 08:42:57,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 08:42:57,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 08:42:57,954 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2023-08-30 08:42:57,955 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-08-30 08:42:57,955 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 08:42:57,955 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:42:57,986 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:42:57,986 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:42:57,987 INFO L158 Benchmark]: Toolchain (without parser) took 7293.59ms. Allocated memory was 71.3MB in the beginning and 151.0MB in the end (delta: 79.7MB). Free memory was 38.5MB in the beginning and 102.3MB in the end (delta: -63.7MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2023-08-30 08:42:57,987 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory was 32.1MB in the beginning and 32.0MB in the end (delta: 46.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:42:57,988 INFO L158 Benchmark]: CACSL2BoogieTranslator took 522.71ms. Allocated memory is still 71.3MB. Free memory was 38.2MB in the beginning and 32.3MB in the end (delta: 5.9MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2023-08-30 08:42:57,988 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.07ms. Allocated memory is still 71.3MB. Free memory was 32.3MB in the beginning and 29.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:42:57,988 INFO L158 Benchmark]: Boogie Preprocessor took 62.83ms. Allocated memory is still 71.3MB. Free memory was 29.4MB in the beginning and 49.3MB in the end (delta: -19.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:42:57,988 INFO L158 Benchmark]: RCFGBuilder took 642.45ms. Allocated memory is still 71.3MB. Free memory was 49.3MB in the beginning and 31.5MB in the end (delta: 17.8MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2023-08-30 08:42:57,989 INFO L158 Benchmark]: TraceAbstraction took 5938.60ms. Allocated memory was 71.3MB in the beginning and 151.0MB in the end (delta: 79.7MB). Free memory was 30.8MB in the beginning and 105.4MB in the end (delta: -74.6MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. [2023-08-30 08:42:57,989 INFO L158 Benchmark]: Witness Printer took 45.67ms. Allocated memory is still 151.0MB. Free memory was 105.4MB in the beginning and 102.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:42:57,990 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory was 32.1MB in the beginning and 32.0MB in the end (delta: 46.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 522.71ms. Allocated memory is still 71.3MB. Free memory was 38.2MB in the beginning and 32.3MB in the end (delta: 5.9MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.07ms. Allocated memory is still 71.3MB. Free memory was 32.3MB in the beginning and 29.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.83ms. Allocated memory is still 71.3MB. Free memory was 29.4MB in the beginning and 49.3MB in the end (delta: -19.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 642.45ms. Allocated memory is still 71.3MB. Free memory was 49.3MB in the beginning and 31.5MB in the end (delta: 17.8MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5938.60ms. Allocated memory was 71.3MB in the beginning and 151.0MB in the end (delta: 79.7MB). Free memory was 30.8MB in the beginning and 105.4MB in the end (delta: -74.6MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. * Witness Printer took 45.67ms. Allocated memory is still 151.0MB. Free memory was 105.4MB in the beginning and 102.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 125 PlacesBefore, 41 PlacesAfterwards, 117 TransitionsBefore, 32 TransitionsAfterwards, 2780 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 95 TotalNumberOfCompositions, 10353 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3667, independent: 3353, independent conditional: 0, independent unconditional: 3353, dependent: 314, dependent conditional: 0, dependent unconditional: 314, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1499, independent: 1454, independent conditional: 0, independent unconditional: 1454, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3667, independent: 1899, independent conditional: 0, independent unconditional: 1899, dependent: 269, dependent conditional: 0, dependent unconditional: 269, unknown: 1499, unknown conditional: 0, unknown unconditional: 1499] , Statistics on independence cache: Total cache size (in pairs): 175, Positive cache size: 153, Positive conditional cache size: 0, Positive unconditional cache size: 153, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 825]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 825]: 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 7 procedures, 156 locations, 15 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: 5.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 118 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 95 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 258 IncrementalHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 5 mSDtfsCounter, 258 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred in iteration=2, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 08:42:58,009 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