./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix018_power.oepc_pso.oepc_rmo.oepc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix018_power.oepc_pso.oepc_rmo.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 5a744aa24a15b244d86986861038a45981c329f5578e2da992d82373e2f73c5a --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 12:57:43,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 12:57:43,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 12:57:43,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 12:57:43,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 12:57:43,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 12:57:43,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 12:57:43,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 12:57:43,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 12:57:43,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 12:57:43,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 12:57:43,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 12:57:43,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 12:57:43,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 12:57:43,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 12:57:43,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 12:57:43,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 12:57:43,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 12:57:43,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 12:57:43,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 12:57:43,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 12:57:43,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 12:57:43,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 12:57:43,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 12:57:43,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 12:57:43,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 12:57:43,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 12:57:43,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 12:57:43,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 12:57:43,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 12:57:43,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 12:57:43,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 12:57:43,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 12:57:43,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 12:57:43,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 12:57:43,752 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 12:57:43,753 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 12:57:43,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 12:57:43,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 12:57:43,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 12:57:43,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 12:57:43,755 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 12:57:43,774 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 12:57:43,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 12:57:43,775 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 12:57:43,776 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 12:57:43,776 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 12:57:43,776 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 12:57:43,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 12:57:43,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 12:57:43,778 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 12:57:43,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 12:57:43,779 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 12:57:43,779 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 12:57:43,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 12:57:43,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 12:57:43,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 12:57:43,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 12:57:43,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 12:57:43,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 12:57:43,780 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 12:57:43,780 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 12:57:43,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 12:57:43,780 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 12:57:43,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 12:57:43,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 12:57:43,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 12:57:43,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 12:57:43,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:57:43,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 12:57:43,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 12:57:43,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 12:57:43,781 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 12:57:43,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 12:57:43,782 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 12:57:43,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 12:57:43,782 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 12:57:43,782 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 12:57:43,782 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 12:57:43,782 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a744aa24a15b244d86986861038a45981c329f5578e2da992d82373e2f73c5a Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 12:57:43,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 12:57:44,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 12:57:44,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 12:57:44,004 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 12:57:44,005 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 12:57:44,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix018_power.oepc_pso.oepc_rmo.oepc.i [2023-08-30 12:57:45,021 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 12:57:45,211 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 12:57:45,212 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix018_power.oepc_pso.oepc_rmo.oepc.i [2023-08-30 12:57:45,222 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e66fdd76f/06211716c4c7438b9151f060894b3b6c/FLAG05882fcbd [2023-08-30 12:57:45,232 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e66fdd76f/06211716c4c7438b9151f060894b3b6c [2023-08-30 12:57:45,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 12:57:45,235 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 12:57:45,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 12:57:45,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 12:57:45,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 12:57:45,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:57:45" (1/1) ... [2023-08-30 12:57:45,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10df9428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:45, skipping insertion in model container [2023-08-30 12:57:45,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:57:45" (1/1) ... [2023-08-30 12:57:45,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 12:57:45,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 12:57:45,362 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/mix018_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2023-08-30 12:57:45,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:57:45,516 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 12:57:45,525 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/mix018_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2023-08-30 12:57:45,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:57:45,647 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 12:57:45,647 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 12:57:45,652 INFO L208 MainTranslator]: Completed translation [2023-08-30 12:57:45,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:45 WrapperNode [2023-08-30 12:57:45,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 12:57:45,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 12:57:45,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 12:57:45,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 12:57:45,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:45" (1/1) ... [2023-08-30 12:57:45,686 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:45" (1/1) ... [2023-08-30 12:57:45,715 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 147 [2023-08-30 12:57:45,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 12:57:45,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 12:57:45,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 12:57:45,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 12:57:45,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:45" (1/1) ... [2023-08-30 12:57:45,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:45" (1/1) ... [2023-08-30 12:57:45,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:45" (1/1) ... [2023-08-30 12:57:45,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:45" (1/1) ... [2023-08-30 12:57:45,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:45" (1/1) ... [2023-08-30 12:57:45,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:45" (1/1) ... [2023-08-30 12:57:45,740 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:45" (1/1) ... [2023-08-30 12:57:45,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:45" (1/1) ... [2023-08-30 12:57:45,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 12:57:45,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 12:57:45,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 12:57:45,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 12:57:45,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:45" (1/1) ... [2023-08-30 12:57:45,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:57:45,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 12:57:45,770 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 12:57:45,776 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 12:57:45,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 12:57:45,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 12:57:45,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 12:57:45,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 12:57:45,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 12:57:45,795 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 12:57:45,795 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 12:57:45,795 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 12:57:45,795 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 12:57:45,795 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 12:57:45,795 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 12:57:45,795 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-30 12:57:45,796 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-30 12:57:45,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 12:57:45,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 12:57:45,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 12:57:45,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 12:57:45,797 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 12:57:45,966 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 12:57:45,967 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 12:57:46,272 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 12:57:46,368 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 12:57:46,368 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 12:57:46,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:57:46 BoogieIcfgContainer [2023-08-30 12:57:46,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 12:57:46,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 12:57:46,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 12:57:46,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 12:57:46,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 12:57:45" (1/3) ... [2023-08-30 12:57:46,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184013e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:57:46, skipping insertion in model container [2023-08-30 12:57:46,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:45" (2/3) ... [2023-08-30 12:57:46,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184013e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:57:46, skipping insertion in model container [2023-08-30 12:57:46,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:57:46" (3/3) ... [2023-08-30 12:57:46,378 INFO L112 eAbstractionObserver]: Analyzing ICFG mix018_power.oepc_pso.oepc_rmo.oepc.i [2023-08-30 12:57:46,383 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 12:57:46,389 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 12:57:46,390 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 12:57:46,390 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 12:57:46,440 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 12:57:46,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 148 places, 137 transitions, 294 flow [2023-08-30 12:57:46,523 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2023-08-30 12:57:46,524 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:57:46,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 133 events. 2/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 90 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2023-08-30 12:57:46,528 INFO L82 GeneralOperation]: Start removeDead. Operand has 148 places, 137 transitions, 294 flow [2023-08-30 12:57:46,535 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 133 transitions, 278 flow [2023-08-30 12:57:46,538 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 12:57:46,551 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 133 transitions, 278 flow [2023-08-30 12:57:46,554 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 133 transitions, 278 flow [2023-08-30 12:57:46,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 133 transitions, 278 flow [2023-08-30 12:57:46,572 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2023-08-30 12:57:46,574 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:57:46,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 133 events. 2/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2023-08-30 12:57:46,576 INFO L119 LiptonReduction]: Number of co-enabled transitions 4002 [2023-08-30 12:57:49,591 INFO L134 LiptonReduction]: Checked pairs total: 15115 [2023-08-30 12:57:49,591 INFO L136 LiptonReduction]: Total number of compositions: 104 [2023-08-30 12:57:49,600 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 12:57:49,604 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;@52f1d43c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 12:57:49,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 12:57:49,607 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 12:57:49,607 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:57:49,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:57:49,607 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 12:57:49,608 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 12:57:49,610 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:57:49,611 INFO L85 PathProgramCache]: Analyzing trace with hash 111683230, now seen corresponding path program 1 times [2023-08-30 12:57:49,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:57:49,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250958337] [2023-08-30 12:57:49,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:57:49,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:57:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:57:49,809 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 12:57:49,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:57:49,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250958337] [2023-08-30 12:57:49,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250958337] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:57:49,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:57:49,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 12:57:49,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774969530] [2023-08-30 12:57:49,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:57:49,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 12:57:49,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:57:49,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 12:57:49,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 12:57:49,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 241 [2023-08-30 12:57:49,842 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 37 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 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 12:57:49,842 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:57:49,843 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 241 [2023-08-30 12:57:49,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:57:50,910 INFO L130 PetriNetUnfolder]: 9717/13550 cut-off events. [2023-08-30 12:57:50,911 INFO L131 PetriNetUnfolder]: For 105/105 co-relation queries the response was YES. [2023-08-30 12:57:50,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27324 conditions, 13550 events. 9717/13550 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 568. Compared 75128 event pairs, 2763 based on Foata normal form. 0/10177 useless extension candidates. Maximal degree in co-relation 27312. Up to 11755 conditions per place. [2023-08-30 12:57:50,985 INFO L137 encePairwiseOnDemand]: 227/241 looper letters, 49 selfloop transitions, 5 changer transitions 0/58 dead transitions. [2023-08-30 12:57:50,985 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 58 transitions, 245 flow [2023-08-30 12:57:50,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 12:57:50,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 12:57:50,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2023-08-30 12:57:50,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5449515905947441 [2023-08-30 12:57:50,995 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2023-08-30 12:57:50,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2023-08-30 12:57:50,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:57:50,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2023-08-30 12:57:51,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 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 12:57:51,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 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 12:57:51,003 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 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 12:57:51,004 INFO L175 Difference]: Start difference. First operand has 49 places, 37 transitions, 86 flow. Second operand 3 states and 394 transitions. [2023-08-30 12:57:51,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 58 transitions, 245 flow [2023-08-30 12:57:51,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 58 transitions, 238 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 12:57:51,010 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 127 flow [2023-08-30 12:57:51,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2023-08-30 12:57:51,014 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2023-08-30 12:57:51,014 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 127 flow [2023-08-30 12:57:51,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 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 12:57:51,014 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:57:51,015 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:57:51,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 12:57:51,015 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 12:57:51,016 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:57:51,016 INFO L85 PathProgramCache]: Analyzing trace with hash 182581256, now seen corresponding path program 1 times [2023-08-30 12:57:51,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:57:51,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970430165] [2023-08-30 12:57:51,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:57:51,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:57:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:57:51,107 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 12:57:51,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:57:51,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970430165] [2023-08-30 12:57:51,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970430165] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:57:51,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:57:51,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 12:57:51,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253339786] [2023-08-30 12:57:51,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:57:51,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 12:57:51,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:57:51,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 12:57:51,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 12:57:51,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 241 [2023-08-30 12:57:51,118 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 127 flow. Second operand has 4 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:57:51,119 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:57:51,119 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 241 [2023-08-30 12:57:51,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:57:51,866 INFO L130 PetriNetUnfolder]: 6207/8648 cut-off events. [2023-08-30 12:57:51,866 INFO L131 PetriNetUnfolder]: For 486/486 co-relation queries the response was YES. [2023-08-30 12:57:51,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20955 conditions, 8648 events. 6207/8648 cut-off events. For 486/486 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 45506 event pairs, 1715 based on Foata normal form. 0/7449 useless extension candidates. Maximal degree in co-relation 20944. Up to 6852 conditions per place. [2023-08-30 12:57:51,905 INFO L137 encePairwiseOnDemand]: 232/241 looper letters, 45 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2023-08-30 12:57:51,905 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 54 transitions, 253 flow [2023-08-30 12:57:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 12:57:51,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 12:57:51,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 494 transitions. [2023-08-30 12:57:51,907 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5124481327800829 [2023-08-30 12:57:51,907 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 494 transitions. [2023-08-30 12:57:51,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 494 transitions. [2023-08-30 12:57:51,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:57:51,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 494 transitions. [2023-08-30 12:57:51,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.5) internal successors, (494), 4 states have internal predecessors, (494), 0 states have call successors, (0), 0 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 12:57:51,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 0 states have call successors, (0), 0 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 12:57:51,911 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 0 states have call successors, (0), 0 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 12:57:51,911 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 127 flow. Second operand 4 states and 494 transitions. [2023-08-30 12:57:51,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 54 transitions, 253 flow [2023-08-30 12:57:51,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 54 transitions, 248 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 12:57:51,913 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 116 flow [2023-08-30 12:57:51,913 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=116, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2023-08-30 12:57:51,914 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2023-08-30 12:57:51,914 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 116 flow [2023-08-30 12:57:51,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:57:51,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:57:51,915 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:57:51,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 12:57:51,915 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 12:57:51,916 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:57:51,916 INFO L85 PathProgramCache]: Analyzing trace with hash 182581257, now seen corresponding path program 1 times [2023-08-30 12:57:51,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:57:51,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015690701] [2023-08-30 12:57:51,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:57:51,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:57:51,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:57:52,015 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 12:57:52,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:57:52,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015690701] [2023-08-30 12:57:52,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015690701] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:57:52,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:57:52,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 12:57:52,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582317374] [2023-08-30 12:57:52,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:57:52,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 12:57:52,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:57:52,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 12:57:52,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 12:57:52,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 241 [2023-08-30 12:57:52,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:57:52,027 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:57:52,027 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 241 [2023-08-30 12:57:52,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:57:52,644 INFO L130 PetriNetUnfolder]: 4260/5979 cut-off events. [2023-08-30 12:57:52,645 INFO L131 PetriNetUnfolder]: For 1580/1580 co-relation queries the response was YES. [2023-08-30 12:57:52,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14284 conditions, 5979 events. 4260/5979 cut-off events. For 1580/1580 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 30420 event pairs, 1261 based on Foata normal form. 0/5696 useless extension candidates. Maximal degree in co-relation 14272. Up to 2277 conditions per place. [2023-08-30 12:57:52,666 INFO L137 encePairwiseOnDemand]: 232/241 looper letters, 61 selfloop transitions, 9 changer transitions 0/74 dead transitions. [2023-08-30 12:57:52,666 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 74 transitions, 350 flow [2023-08-30 12:57:52,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 12:57:52,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 12:57:52,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 514 transitions. [2023-08-30 12:57:52,668 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.533195020746888 [2023-08-30 12:57:52,668 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 514 transitions. [2023-08-30 12:57:52,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 514 transitions. [2023-08-30 12:57:52,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:57:52,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 514 transitions. [2023-08-30 12:57:52,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 128.5) internal successors, (514), 4 states have internal predecessors, (514), 0 states have call successors, (0), 0 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 12:57:52,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 0 states have call successors, (0), 0 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 12:57:52,671 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 0 states have call successors, (0), 0 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 12:57:52,671 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 116 flow. Second operand 4 states and 514 transitions. [2023-08-30 12:57:52,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 74 transitions, 350 flow [2023-08-30 12:57:52,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 74 transitions, 344 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 12:57:52,673 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 168 flow [2023-08-30 12:57:52,674 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2023-08-30 12:57:52,674 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2023-08-30 12:57:52,674 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 168 flow [2023-08-30 12:57:52,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:57:52,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:57:52,675 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:57:52,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 12:57:52,675 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 12:57:52,675 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:57:52,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1886142179, now seen corresponding path program 1 times [2023-08-30 12:57:52,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:57:52,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591781018] [2023-08-30 12:57:52,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:57:52,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:57:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:57:52,745 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 12:57:52,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:57:52,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591781018] [2023-08-30 12:57:52,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591781018] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:57:52,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:57:52,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 12:57:52,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363347524] [2023-08-30 12:57:52,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:57:52,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 12:57:52,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:57:52,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 12:57:52,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 12:57:52,752 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 241 [2023-08-30 12:57:52,753 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 168 flow. Second operand has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 0 states have call successors, (0), 0 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 12:57:52,753 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:57:52,753 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 241 [2023-08-30 12:57:52,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:57:53,252 INFO L130 PetriNetUnfolder]: 3939/5472 cut-off events. [2023-08-30 12:57:53,253 INFO L131 PetriNetUnfolder]: For 3282/3282 co-relation queries the response was YES. [2023-08-30 12:57:53,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14897 conditions, 5472 events. 3939/5472 cut-off events. For 3282/3282 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 27503 event pairs, 1217 based on Foata normal form. 0/5399 useless extension candidates. Maximal degree in co-relation 14884. Up to 2277 conditions per place. [2023-08-30 12:57:53,272 INFO L137 encePairwiseOnDemand]: 232/241 looper letters, 71 selfloop transitions, 13 changer transitions 4/92 dead transitions. [2023-08-30 12:57:53,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 92 transitions, 476 flow [2023-08-30 12:57:53,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 12:57:53,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 12:57:53,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 642 transitions. [2023-08-30 12:57:53,277 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5327800829875519 [2023-08-30 12:57:53,277 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 642 transitions. [2023-08-30 12:57:53,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 642 transitions. [2023-08-30 12:57:53,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:57:53,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 642 transitions. [2023-08-30 12:57:53,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:57:53,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 241.0) internal successors, (1446), 6 states have internal predecessors, (1446), 0 states have call successors, (0), 0 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 12:57:53,281 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 241.0) internal successors, (1446), 6 states have internal predecessors, (1446), 0 states have call successors, (0), 0 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 12:57:53,281 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 168 flow. Second operand 5 states and 642 transitions. [2023-08-30 12:57:53,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 92 transitions, 476 flow [2023-08-30 12:57:53,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 92 transitions, 458 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-30 12:57:53,289 INFO L231 Difference]: Finished difference. Result has 51 places, 40 transitions, 192 flow [2023-08-30 12:57:53,289 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=192, PETRI_PLACES=51, PETRI_TRANSITIONS=40} [2023-08-30 12:57:53,290 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2023-08-30 12:57:53,290 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 192 flow [2023-08-30 12:57:53,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 0 states have call successors, (0), 0 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 12:57:53,291 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:57:53,291 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, 1, 1, 1, 1, 1] [2023-08-30 12:57:53,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 12:57:53,292 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 12:57:53,292 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:57:53,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1917280674, now seen corresponding path program 1 times [2023-08-30 12:57:53,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:57:53,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917376531] [2023-08-30 12:57:53,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:57:53,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:57:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:57:53,433 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 12:57:53,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:57:53,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917376531] [2023-08-30 12:57:53,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917376531] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:57:53,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:57:53,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 12:57:53,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884237217] [2023-08-30 12:57:53,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:57:53,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 12:57:53,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:57:53,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 12:57:53,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 12:57:53,446 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 241 [2023-08-30 12:57:53,447 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 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 12:57:53,447 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:57:53,447 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 241 [2023-08-30 12:57:53,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:57:53,917 INFO L130 PetriNetUnfolder]: 3912/5425 cut-off events. [2023-08-30 12:57:53,917 INFO L131 PetriNetUnfolder]: For 3988/3988 co-relation queries the response was YES. [2023-08-30 12:57:53,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15128 conditions, 5425 events. 3912/5425 cut-off events. For 3988/3988 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 27213 event pairs, 1217 based on Foata normal form. 16/5384 useless extension candidates. Maximal degree in co-relation 15114. Up to 2277 conditions per place. [2023-08-30 12:57:53,927 INFO L137 encePairwiseOnDemand]: 232/241 looper letters, 0 selfloop transitions, 0 changer transitions 84/84 dead transitions. [2023-08-30 12:57:53,927 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 84 transitions, 428 flow [2023-08-30 12:57:53,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 12:57:53,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 12:57:53,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 744 transitions. [2023-08-30 12:57:53,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5145228215767634 [2023-08-30 12:57:53,930 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 744 transitions. [2023-08-30 12:57:53,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 744 transitions. [2023-08-30 12:57:53,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:57:53,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 744 transitions. [2023-08-30 12:57:53,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.0) internal successors, (744), 6 states have internal predecessors, (744), 0 states have call successors, (0), 0 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 12:57:53,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 241.0) internal successors, (1687), 7 states have internal predecessors, (1687), 0 states have call successors, (0), 0 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 12:57:53,934 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 241.0) internal successors, (1687), 7 states have internal predecessors, (1687), 0 states have call successors, (0), 0 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 12:57:53,934 INFO L175 Difference]: Start difference. First operand has 51 places, 40 transitions, 192 flow. Second operand 6 states and 744 transitions. [2023-08-30 12:57:53,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 84 transitions, 428 flow [2023-08-30 12:57:53,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 84 transitions, 373 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-30 12:57:53,994 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2023-08-30 12:57:53,994 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2023-08-30 12:57:53,995 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2023-08-30 12:57:53,995 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2023-08-30 12:57:53,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 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 12:57:54,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-30 12:57:54,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-30 12:57:54,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-30 12:57:54,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-30 12:57:54,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-30 12:57:54,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-30 12:57:54,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-30 12:57:54,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-30 12:57:54,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-08-30 12:57:54,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-08-30 12:57:54,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-30 12:57:54,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-30 12:57:54,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-30 12:57:54,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-30 12:57:54,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-30 12:57:54,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-30 12:57:54,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-30 12:57:54,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-30 12:57:54,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-30 12:57:54,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-30 12:57:54,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 12:57:54,007 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-30 12:57:54,012 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 12:57:54,012 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 12:57:54,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 12:57:54 BasicIcfg [2023-08-30 12:57:54,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 12:57:54,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 12:57:54,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 12:57:54,014 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 12:57:54,015 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:57:46" (3/4) ... [2023-08-30 12:57:54,016 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 12:57:54,019 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 12:57:54,019 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 12:57:54,020 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 12:57:54,020 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-08-30 12:57:54,023 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-08-30 12:57:54,023 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-08-30 12:57:54,023 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 12:57:54,024 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 12:57:54,057 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 12:57:54,057 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 12:57:54,057 INFO L158 Benchmark]: Toolchain (without parser) took 8822.36ms. Allocated memory was 75.5MB in the beginning and 868.2MB in the end (delta: 792.7MB). Free memory was 51.6MB in the beginning and 622.7MB in the end (delta: -571.1MB). Peak memory consumption was 224.1MB. Max. memory is 16.1GB. [2023-08-30 12:57:54,058 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 75.5MB. Free memory was 52.9MB in the beginning and 52.8MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 12:57:54,058 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.15ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 51.4MB in the beginning and 72.4MB in the end (delta: -21.0MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2023-08-30 12:57:54,058 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.81ms. Allocated memory is still 100.7MB. Free memory was 72.4MB in the beginning and 70.0MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 12:57:54,058 INFO L158 Benchmark]: Boogie Preprocessor took 26.98ms. Allocated memory is still 100.7MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:57:54,059 INFO L158 Benchmark]: RCFGBuilder took 626.38ms. Allocated memory is still 100.7MB. Free memory was 67.9MB in the beginning and 57.9MB in the end (delta: 10.0MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2023-08-30 12:57:54,059 INFO L158 Benchmark]: TraceAbstraction took 7640.91ms. Allocated memory was 100.7MB in the beginning and 868.2MB in the end (delta: 767.6MB). Free memory was 56.9MB in the beginning and 625.8MB in the end (delta: -568.9MB). Peak memory consumption was 591.8MB. Max. memory is 16.1GB. [2023-08-30 12:57:54,059 INFO L158 Benchmark]: Witness Printer took 42.62ms. Allocated memory is still 868.2MB. Free memory was 625.8MB in the beginning and 622.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 12:57:54,061 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 was 52.9MB in the beginning and 52.8MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 417.15ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 51.4MB in the beginning and 72.4MB in the end (delta: -21.0MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.81ms. Allocated memory is still 100.7MB. Free memory was 72.4MB in the beginning and 70.0MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.98ms. Allocated memory is still 100.7MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 626.38ms. Allocated memory is still 100.7MB. Free memory was 67.9MB in the beginning and 57.9MB in the end (delta: 10.0MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * TraceAbstraction took 7640.91ms. Allocated memory was 100.7MB in the beginning and 868.2MB in the end (delta: 767.6MB). Free memory was 56.9MB in the beginning and 625.8MB in the end (delta: -568.9MB). Peak memory consumption was 591.8MB. Max. memory is 16.1GB. * Witness Printer took 42.62ms. Allocated memory is still 868.2MB. Free memory was 625.8MB in the beginning and 622.7MB 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: 3.0s, 144 PlacesBefore, 49 PlacesAfterwards, 133 TransitionsBefore, 37 TransitionsAfterwards, 4002 CoEnabledTransitionPairs, 7 FixpointIterations, 43 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 104 TotalNumberOfCompositions, 15115 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5037, independent: 4668, independent conditional: 0, independent unconditional: 4668, dependent: 369, dependent conditional: 0, dependent unconditional: 369, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2109, independent: 2042, independent conditional: 0, independent unconditional: 2042, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5037, independent: 2626, independent conditional: 0, independent unconditional: 2626, dependent: 302, dependent conditional: 0, dependent unconditional: 302, unknown: 2109, unknown conditional: 0, unknown unconditional: 2109] , Statistics on independence cache: Total cache size (in pairs): 261, Positive cache size: 234, Positive conditional cache size: 0, Positive unconditional cache size: 234, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 815]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 815]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 851]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 851]: 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 9 procedures, 181 locations, 20 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: 7.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 296 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 268 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 67 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 448 IncrementalHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 67 mSolverCounterUnsat, 13 mSDtfsCounter, 448 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 0.4s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 12:57:54,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE