./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix000.opt.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/mix000.opt.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 fd6a5bc5d3f013f4ace97b77d830608c8280eaa5bc8f461c3acae231027617e4 --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 08:36:32,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:36:32,680 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:36:32,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:36:32,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:36:32,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:36:32,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:36:32,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:36:32,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:36:32,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:36:32,735 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:36:32,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:36:32,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:36:32,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:36:32,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:36:32,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:36:32,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:36:32,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:36:32,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:36:32,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:36:32,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:36:32,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:36:32,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:36:32,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:36:32,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:36:32,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:36:32,774 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:36:32,776 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:36:32,776 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:36:32,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:36:32,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:36:32,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:36:32,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:36:32,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:36:32,781 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:36:32,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:36:32,782 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:36:32,782 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:36:32,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:36:32,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:36:32,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:36:32,785 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:36:32,817 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:36:32,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:36:32,819 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:36:32,819 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:36:32,820 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:36:32,820 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:36:32,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:36:32,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:36:32,821 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:36:32,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:36:32,822 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:36:32,822 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:36:32,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:36:32,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:36:32,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:36:32,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:36:32,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:36:32,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:36:32,824 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:36:32,824 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:36:32,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:36:32,824 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:36:32,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:36:32,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:36:32,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:36:32,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:36:32,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:36:32,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:36:32,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:36:32,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:36:32,826 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:36:32,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:36:32,826 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:36:32,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:36:32,827 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:36:32,827 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:36:32,827 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:36:32,827 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd6a5bc5d3f013f4ace97b77d830608c8280eaa5bc8f461c3acae231027617e4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:36:33,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:36:33,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:36:33,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:36:33,140 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:36:33,140 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:36:33,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix000.opt.i [2023-08-30 08:36:34,232 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:36:34,477 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:36:34,477 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix000.opt.i [2023-08-30 08:36:34,499 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba64e71a8/b6bbf667776e49a2a5ce4f37aad98f05/FLAG3e4b812fa [2023-08-30 08:36:34,510 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba64e71a8/b6bbf667776e49a2a5ce4f37aad98f05 [2023-08-30 08:36:34,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:36:34,513 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:36:34,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:36:34,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:36:34,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:36:34,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:36:34" (1/1) ... [2023-08-30 08:36:34,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@185ab0f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:36:34, skipping insertion in model container [2023-08-30 08:36:34,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:36:34" (1/1) ... [2023-08-30 08:36:34,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:36:34,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:36:34,714 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/mix000.opt.i[987,1000] [2023-08-30 08:36:34,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:36:34,950 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:36:34,973 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/mix000.opt.i[987,1000] [2023-08-30 08:36:35,026 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:36:35,059 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:36:35,059 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:36:35,066 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:36:35,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:36:35 WrapperNode [2023-08-30 08:36:35,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:36:35,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:36:35,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:36:35,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:36:35,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:36:35" (1/1) ... [2023-08-30 08:36:35,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:36:35" (1/1) ... [2023-08-30 08:36:35,138 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 137 [2023-08-30 08:36:35,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:36:35,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:36:35,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:36:35,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:36:35,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:36:35" (1/1) ... [2023-08-30 08:36:35,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:36:35" (1/1) ... [2023-08-30 08:36:35,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:36:35" (1/1) ... [2023-08-30 08:36:35,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:36:35" (1/1) ... [2023-08-30 08:36:35,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:36:35" (1/1) ... [2023-08-30 08:36:35,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:36:35" (1/1) ... [2023-08-30 08:36:35,171 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:36:35" (1/1) ... [2023-08-30 08:36:35,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:36:35" (1/1) ... [2023-08-30 08:36:35,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:36:35,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:36:35,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:36:35,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:36:35,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:36:35" (1/1) ... [2023-08-30 08:36:35,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:36:35,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:36:35,217 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 08:36:35,229 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 08:36:35,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:36:35,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:36:35,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:36:35,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:36:35,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:36:35,260 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 08:36:35,261 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 08:36:35,261 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 08:36:35,261 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 08:36:35,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:36:35,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:36:35,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:36:35,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:36:35,263 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 08:36:35,448 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:36:35,450 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:36:35,791 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:36:35,930 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:36:35,931 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:36:35,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:36:35 BoogieIcfgContainer [2023-08-30 08:36:35,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:36:35,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:36:35,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:36:35,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:36:35,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:36:34" (1/3) ... [2023-08-30 08:36:35,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1051f892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:36:35, skipping insertion in model container [2023-08-30 08:36:35,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:36:35" (2/3) ... [2023-08-30 08:36:35,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1051f892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:36:35, skipping insertion in model container [2023-08-30 08:36:35,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:36:35" (3/3) ... [2023-08-30 08:36:35,939 INFO L112 eAbstractionObserver]: Analyzing ICFG mix000.opt.i [2023-08-30 08:36:35,950 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:36:35,959 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:36:35,959 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 08:36:35,959 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:36:36,025 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 08:36:36,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 93 transitions, 196 flow [2023-08-30 08:36:36,122 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2023-08-30 08:36:36,122 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:36:36,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 91 events. 2/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 52 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2023-08-30 08:36:36,128 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 93 transitions, 196 flow [2023-08-30 08:36:36,135 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 91 transitions, 188 flow [2023-08-30 08:36:36,140 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:36:36,163 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 91 transitions, 188 flow [2023-08-30 08:36:36,167 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 91 transitions, 188 flow [2023-08-30 08:36:36,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 91 transitions, 188 flow [2023-08-30 08:36:36,206 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2023-08-30 08:36:36,206 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:36:36,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 91 events. 2/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 52 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2023-08-30 08:36:36,209 INFO L119 LiptonReduction]: Number of co-enabled transitions 1294 [2023-08-30 08:36:39,346 INFO L134 LiptonReduction]: Checked pairs total: 4445 [2023-08-30 08:36:39,346 INFO L136 LiptonReduction]: Total number of compositions: 81 [2023-08-30 08:36:39,359 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:36:39,364 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;@4160a55b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:36:39,364 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-30 08:36:39,368 INFO L130 PetriNetUnfolder]: 1/11 cut-off events. [2023-08-30 08:36:39,368 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:36:39,369 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:36:39,369 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 08:36:39,370 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 08:36:39,374 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:36:39,374 INFO L85 PathProgramCache]: Analyzing trace with hash 497239167, now seen corresponding path program 1 times [2023-08-30 08:36:39,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:36:39,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650939762] [2023-08-30 08:36:39,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:36:39,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:36:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:36:39,711 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 08:36:39,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:36:39,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650939762] [2023-08-30 08:36:39,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650939762] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:36:39,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:36:39,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:36:39,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37680231] [2023-08-30 08:36:39,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:36:39,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:36:39,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:36:39,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:36:39,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:36:39,761 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 174 [2023-08-30 08:36:39,764 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 21 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 08:36:39,764 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:36:39,764 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 174 [2023-08-30 08:36:39,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:36:39,854 INFO L130 PetriNetUnfolder]: 123/235 cut-off events. [2023-08-30 08:36:39,855 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 08:36:39,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 235 events. 123/235 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 867 event pairs, 61 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 467. Up to 116 conditions per place. [2023-08-30 08:36:39,858 INFO L137 encePairwiseOnDemand]: 166/174 looper letters, 25 selfloop transitions, 3 changer transitions 2/32 dead transitions. [2023-08-30 08:36:39,858 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 32 transitions, 133 flow [2023-08-30 08:36:39,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:36:39,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:36:39,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2023-08-30 08:36:39,869 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5057471264367817 [2023-08-30 08:36:39,870 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 264 transitions. [2023-08-30 08:36:39,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 264 transitions. [2023-08-30 08:36:39,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:36:39,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 264 transitions. [2023-08-30 08:36:39,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 08:36:39,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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 08:36:39,880 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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 08:36:39,882 INFO L175 Difference]: Start difference. First operand has 27 places, 21 transitions, 48 flow. Second operand 3 states and 264 transitions. [2023-08-30 08:36:39,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 32 transitions, 133 flow [2023-08-30 08:36:39,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 32 transitions, 130 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 08:36:39,886 INFO L231 Difference]: Finished difference. Result has 28 places, 20 transitions, 61 flow [2023-08-30 08:36:39,887 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=28, PETRI_TRANSITIONS=20} [2023-08-30 08:36:39,890 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2023-08-30 08:36:39,890 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 20 transitions, 61 flow [2023-08-30 08:36:39,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 08:36:39,891 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:36:39,891 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:36:39,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:36:39,892 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 08:36:39,892 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:36:39,892 INFO L85 PathProgramCache]: Analyzing trace with hash -941300649, now seen corresponding path program 1 times [2023-08-30 08:36:39,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:36:39,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902661712] [2023-08-30 08:36:39,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:36:39,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:36:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:36:40,002 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 08:36:40,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:36:40,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902661712] [2023-08-30 08:36:40,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902661712] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:36:40,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:36:40,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:36:40,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104890428] [2023-08-30 08:36:40,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:36:40,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:36:40,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:36:40,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:36:40,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:36:40,014 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 174 [2023-08-30 08:36:40,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 20 transitions, 61 flow. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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 08:36:40,022 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:36:40,022 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 174 [2023-08-30 08:36:40,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:36:40,141 INFO L130 PetriNetUnfolder]: 110/210 cut-off events. [2023-08-30 08:36:40,141 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2023-08-30 08:36:40,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 496 conditions, 210 events. 110/210 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 770 event pairs, 61 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 485. Up to 116 conditions per place. [2023-08-30 08:36:40,144 INFO L137 encePairwiseOnDemand]: 169/174 looper letters, 23 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2023-08-30 08:36:40,144 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 28 transitions, 127 flow [2023-08-30 08:36:40,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:36:40,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:36:40,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 332 transitions. [2023-08-30 08:36:40,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47701149425287354 [2023-08-30 08:36:40,147 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 332 transitions. [2023-08-30 08:36:40,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 332 transitions. [2023-08-30 08:36:40,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:36:40,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 332 transitions. [2023-08-30 08:36:40,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 08:36:40,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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 08:36:40,151 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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 08:36:40,151 INFO L175 Difference]: Start difference. First operand has 28 places, 20 transitions, 61 flow. Second operand 4 states and 332 transitions. [2023-08-30 08:36:40,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 28 transitions, 127 flow [2023-08-30 08:36:40,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 28 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:36:40,153 INFO L231 Difference]: Finished difference. Result has 28 places, 18 transitions, 56 flow [2023-08-30 08:36:40,153 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=56, PETRI_PLACES=28, PETRI_TRANSITIONS=18} [2023-08-30 08:36:40,154 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2023-08-30 08:36:40,154 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 18 transitions, 56 flow [2023-08-30 08:36:40,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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 08:36:40,155 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:36:40,155 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:36:40,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:36:40,155 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 08:36:40,156 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:36:40,156 INFO L85 PathProgramCache]: Analyzing trace with hash -941300648, now seen corresponding path program 1 times [2023-08-30 08:36:40,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:36:40,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837934776] [2023-08-30 08:36:40,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:36:40,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:36:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:36:40,238 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 08:36:40,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:36:40,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837934776] [2023-08-30 08:36:40,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837934776] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:36:40,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:36:40,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:36:40,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153153880] [2023-08-30 08:36:40,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:36:40,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:36:40,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:36:40,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:36:40,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:36:40,247 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 174 [2023-08-30 08:36:40,248 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 18 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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 08:36:40,248 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:36:40,248 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 174 [2023-08-30 08:36:40,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:36:40,317 INFO L130 PetriNetUnfolder]: 104/196 cut-off events. [2023-08-30 08:36:40,318 INFO L131 PetriNetUnfolder]: For 76/76 co-relation queries the response was YES. [2023-08-30 08:36:40,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 196 events. 104/196 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 719 event pairs, 61 based on Foata normal form. 8/200 useless extension candidates. Maximal degree in co-relation 449. Up to 116 conditions per place. [2023-08-30 08:36:40,320 INFO L137 encePairwiseOnDemand]: 169/174 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2023-08-30 08:36:40,321 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 26 transitions, 118 flow [2023-08-30 08:36:40,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:36:40,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:36:40,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 330 transitions. [2023-08-30 08:36:40,323 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47413793103448276 [2023-08-30 08:36:40,323 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 330 transitions. [2023-08-30 08:36:40,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 330 transitions. [2023-08-30 08:36:40,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:36:40,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 330 transitions. [2023-08-30 08:36:40,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 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 08:36:40,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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 08:36:40,327 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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 08:36:40,327 INFO L175 Difference]: Start difference. First operand has 28 places, 18 transitions, 56 flow. Second operand 4 states and 330 transitions. [2023-08-30 08:36:40,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 26 transitions, 118 flow [2023-08-30 08:36:40,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 26 transitions, 111 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 08:36:40,329 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2023-08-30 08:36:40,329 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2023-08-30 08:36:40,330 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -1 predicate places. [2023-08-30 08:36:40,333 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2023-08-30 08:36:40,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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 08:36:40,339 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-08-30 08:36:40,339 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-08-30 08:36:40,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-08-30 08:36:40,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-08-30 08:36:40,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-08-30 08:36:40,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-08-30 08:36:40,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-08-30 08:36:40,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-08-30 08:36:40,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-08-30 08:36:40,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-08-30 08:36:40,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:36:40,343 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-30 08:36:40,350 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:36:40,350 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:36:40,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:36:40 BasicIcfg [2023-08-30 08:36:40,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:36:40,355 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:36:40,355 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:36:40,356 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:36:40,356 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:36:35" (3/4) ... [2023-08-30 08:36:40,358 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:36:40,362 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 08:36:40,362 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 08:36:40,367 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-08-30 08:36:40,367 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-30 08:36:40,368 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 08:36:40,370 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:36:40,412 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:36:40,413 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:36:40,413 INFO L158 Benchmark]: Toolchain (without parser) took 5900.10ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 63.2MB in the beginning and 43.2MB in the end (delta: 19.9MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2023-08-30 08:36:40,414 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory was 45.0MB in the beginning and 44.9MB in the end (delta: 98.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:36:40,414 INFO L158 Benchmark]: CACSL2BoogieTranslator took 552.72ms. Allocated memory is still 88.1MB. Free memory was 63.0MB in the beginning and 58.5MB in the end (delta: 4.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-30 08:36:40,414 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.34ms. Allocated memory is still 88.1MB. Free memory was 58.5MB in the beginning and 55.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:36:40,415 INFO L158 Benchmark]: Boogie Preprocessor took 42.01ms. Allocated memory is still 88.1MB. Free memory was 55.6MB in the beginning and 53.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:36:40,415 INFO L158 Benchmark]: RCFGBuilder took 750.37ms. Allocated memory is still 88.1MB. Free memory was 53.9MB in the beginning and 63.2MB in the end (delta: -9.2MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2023-08-30 08:36:40,416 INFO L158 Benchmark]: TraceAbstraction took 4420.39ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 62.7MB in the beginning and 46.4MB in the end (delta: 16.3MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. [2023-08-30 08:36:40,420 INFO L158 Benchmark]: Witness Printer took 57.56ms. Allocated memory is still 130.0MB. Free memory was 46.4MB in the beginning and 43.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:36:40,422 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory was 45.0MB in the beginning and 44.9MB in the end (delta: 98.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 552.72ms. Allocated memory is still 88.1MB. Free memory was 63.0MB in the beginning and 58.5MB in the end (delta: 4.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.34ms. Allocated memory is still 88.1MB. Free memory was 58.5MB in the beginning and 55.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.01ms. Allocated memory is still 88.1MB. Free memory was 55.6MB in the beginning and 53.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 750.37ms. Allocated memory is still 88.1MB. Free memory was 53.9MB in the beginning and 63.2MB in the end (delta: -9.2MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4420.39ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 62.7MB in the beginning and 46.4MB in the end (delta: 16.3MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. * Witness Printer took 57.56ms. Allocated memory is still 130.0MB. Free memory was 46.4MB in the beginning and 43.2MB 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: 3.2s, 96 PlacesBefore, 27 PlacesAfterwards, 91 TransitionsBefore, 21 TransitionsAfterwards, 1294 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 81 TotalNumberOfCompositions, 4445 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1972, independent: 1772, independent conditional: 0, independent unconditional: 1772, dependent: 200, dependent conditional: 0, dependent unconditional: 200, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 755, independent: 723, independent conditional: 0, independent unconditional: 723, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1972, independent: 1049, independent conditional: 0, independent unconditional: 1049, dependent: 168, dependent conditional: 0, dependent unconditional: 168, unknown: 755, unknown conditional: 0, unknown unconditional: 755] , Statistics on independence cache: Total cache size (in pairs): 82, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 115 locations, 10 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: 4.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 128 IncrementalHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 8 mSDtfsCounter, 128 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 87 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 08:36:40,446 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