./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.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 b87483e693fd72a28f6c7edd484e610e6e0dbb17679c8092f6f9c9cd35d4acca --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 05:25:41,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:25:41,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:25:41,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:25:41,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:25:41,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:25:41,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:25:41,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:25:41,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:25:41,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:25:41,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:25:41,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:25:41,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:25:41,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:25:41,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:25:41,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:25:41,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:25:41,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:25:41,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:25:41,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:25:41,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:25:41,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:25:41,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:25:41,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:25:41,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:25:41,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:25:41,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:25:41,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:25:41,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:25:41,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:25:41,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:25:41,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:25:41,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:25:41,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:25:41,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:25:41,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:25:41,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:25:41,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:25:41,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:25:41,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:25:41,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:25:41,722 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:25:41,759 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:25:41,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:25:41,760 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:25:41,760 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:25:41,761 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:25:41,761 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:25:41,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:25:41,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:25:41,762 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:25:41,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:25:41,763 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:25:41,763 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:25:41,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:25:41,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:25:41,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:25:41,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:25:41,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:25:41,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:25:41,765 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:25:41,765 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:25:41,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:25:41,765 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:25:41,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:25:41,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:25:41,766 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:25:41,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:25:41,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:25:41,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:25:41,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:25:41,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:25:41,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:25:41,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:25:41,768 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:25:41,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:25:41,768 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:25:41,768 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:25:41,769 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:25:41,769 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b87483e693fd72a28f6c7edd484e610e6e0dbb17679c8092f6f9c9cd35d4acca Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:25:42,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:25:42,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:25:42,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:25:42,072 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:25:42,073 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:25:42,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.i [2023-09-01 05:25:43,313 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:25:43,584 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:25:43,585 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.i [2023-09-01 05:25:43,604 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd908bc96/677737383449416e83abac5c9f0536da/FLAG48716929b [2023-09-01 05:25:43,617 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd908bc96/677737383449416e83abac5c9f0536da [2023-09-01 05:25:43,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:25:43,621 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:25:43,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:25:43,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:25:43,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:25:43,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:25:43" (1/1) ... [2023-09-01 05:25:43,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6de86c59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:43, skipping insertion in model container [2023-09-01 05:25:43,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:25:43" (1/1) ... [2023-09-01 05:25:43,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:25:43,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:25:43,859 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/safe023_tso.i[945,958] [2023-09-01 05:25:44,042 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:25:44,050 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:25:44,063 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/safe023_tso.i[945,958] [2023-09-01 05:25:44,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:25:44,135 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:25:44,135 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:25:44,141 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:25:44,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44 WrapperNode [2023-09-01 05:25:44,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:25:44,143 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:25:44,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:25:44,144 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:25:44,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,226 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2023-09-01 05:25:44,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:25:44,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:25:44,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:25:44,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:25:44,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,279 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:25:44,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:25:44,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:25:44,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:25:44,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:25:44,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:25:44,323 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 05:25:44,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 05:25:44,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:25:44,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:25:44,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:25:44,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:25:44,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:25:44,359 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:25:44,359 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:25:44,359 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:25:44,360 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:25:44,360 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-09-01 05:25:44,360 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-09-01 05:25:44,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:25:44,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:25:44,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:25:44,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:25:44,362 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 05:25:44,484 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:25:44,486 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:25:44,693 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:25:44,718 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:25:44,718 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:25:44,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:25:44 BoogieIcfgContainer [2023-09-01 05:25:44,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:25:44,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:25:44,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:25:44,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:25:44,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:25:43" (1/3) ... [2023-09-01 05:25:44,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@933d0e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:25:44, skipping insertion in model container [2023-09-01 05:25:44,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (2/3) ... [2023-09-01 05:25:44,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@933d0e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:25:44, skipping insertion in model container [2023-09-01 05:25:44,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:25:44" (3/3) ... [2023-09-01 05:25:44,728 INFO L112 eAbstractionObserver]: Analyzing ICFG safe023_tso.i [2023-09-01 05:25:44,734 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:25:44,741 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:25:44,741 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-09-01 05:25:44,741 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:25:44,807 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:25:44,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 90 transitions, 195 flow [2023-09-01 05:25:44,887 INFO L130 PetriNetUnfolder]: 2/87 cut-off events. [2023-09-01 05:25:44,887 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:25:44,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 87 events. 2/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2023-09-01 05:25:44,894 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 90 transitions, 195 flow [2023-09-01 05:25:44,898 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 87 transitions, 183 flow [2023-09-01 05:25:44,901 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:25:44,909 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 87 transitions, 183 flow [2023-09-01 05:25:44,911 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 87 transitions, 183 flow [2023-09-01 05:25:44,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 87 transitions, 183 flow [2023-09-01 05:25:44,938 INFO L130 PetriNetUnfolder]: 2/87 cut-off events. [2023-09-01 05:25:44,938 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:25:44,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 87 events. 2/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2023-09-01 05:25:44,941 INFO L119 LiptonReduction]: Number of co-enabled transitions 2016 [2023-09-01 05:25:47,099 INFO L134 LiptonReduction]: Checked pairs total: 6304 [2023-09-01 05:25:47,100 INFO L136 LiptonReduction]: Total number of compositions: 74 [2023-09-01 05:25:47,112 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:25:47,118 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;@691f7de, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:25:47,119 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-09-01 05:25:47,122 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-09-01 05:25:47,122 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:25:47,122 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:25:47,122 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 05:25:47,123 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:25:47,127 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:25:47,128 INFO L85 PathProgramCache]: Analyzing trace with hash 312736078, now seen corresponding path program 1 times [2023-09-01 05:25:47,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:25:47,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097734250] [2023-09-01 05:25:47,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:25:47,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:25:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:25:47,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:25:47,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:25:47,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097734250] [2023-09-01 05:25:47,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097734250] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:25:47,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:25:47,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:25:47,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38663179] [2023-09-01 05:25:47,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:25:47,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:25:47,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:25:47,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:25:47,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:25:47,357 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 164 [2023-09-01 05:25:47,360 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:47,360 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:25:47,361 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 164 [2023-09-01 05:25:47,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:25:47,487 INFO L130 PetriNetUnfolder]: 316/550 cut-off events. [2023-09-01 05:25:47,487 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2023-09-01 05:25:47,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1129 conditions, 550 events. 316/550 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 2659 event pairs, 170 based on Foata normal form. 8/385 useless extension candidates. Maximal degree in co-relation 1118. Up to 505 conditions per place. [2023-09-01 05:25:47,493 INFO L137 encePairwiseOnDemand]: 152/164 looper letters, 26 selfloop transitions, 4 changer transitions 0/33 dead transitions. [2023-09-01 05:25:47,493 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 33 transitions, 141 flow [2023-09-01 05:25:47,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:25:47,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:25:47,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 261 transitions. [2023-09-01 05:25:47,506 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5304878048780488 [2023-09-01 05:25:47,506 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 261 transitions. [2023-09-01 05:25:47,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 261 transitions. [2023-09-01 05:25:47,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:25:47,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 261 transitions. [2023-09-01 05:25:47,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:47,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:47,517 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:47,519 INFO L175 Difference]: Start difference. First operand has 33 places, 24 transitions, 57 flow. Second operand 3 states and 261 transitions. [2023-09-01 05:25:47,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 33 transitions, 141 flow [2023-09-01 05:25:47,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 33 transitions, 136 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 05:25:47,523 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 90 flow [2023-09-01 05:25:47,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2023-09-01 05:25:47,528 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2023-09-01 05:25:47,528 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 90 flow [2023-09-01 05:25:47,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:47,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:25:47,529 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:25:47,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:25:47,529 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:25:47,530 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:25:47,530 INFO L85 PathProgramCache]: Analyzing trace with hash 654405266, now seen corresponding path program 1 times [2023-09-01 05:25:47,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:25:47,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441672767] [2023-09-01 05:25:47,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:25:47,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:25:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:25:47,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:25:47,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:25:47,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441672767] [2023-09-01 05:25:47,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441672767] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:25:47,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:25:47,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:25:47,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199317784] [2023-09-01 05:25:47,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:25:47,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:25:47,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:25:47,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:25:47,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:25:47,653 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 164 [2023-09-01 05:25:47,654 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:47,654 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:25:47,654 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 164 [2023-09-01 05:25:47,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:25:47,725 INFO L130 PetriNetUnfolder]: 201/359 cut-off events. [2023-09-01 05:25:47,725 INFO L131 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2023-09-01 05:25:47,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 359 events. 201/359 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1490 event pairs, 86 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 947. Up to 313 conditions per place. [2023-09-01 05:25:47,728 INFO L137 encePairwiseOnDemand]: 157/164 looper letters, 23 selfloop transitions, 4 changer transitions 0/30 dead transitions. [2023-09-01 05:25:47,728 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 30 transitions, 150 flow [2023-09-01 05:25:47,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:25:47,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:25:47,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 326 transitions. [2023-09-01 05:25:47,731 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4969512195121951 [2023-09-01 05:25:47,731 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 326 transitions. [2023-09-01 05:25:47,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 326 transitions. [2023-09-01 05:25:47,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:25:47,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 326 transitions. [2023-09-01 05:25:47,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:47,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:47,735 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:47,735 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 90 flow. Second operand 4 states and 326 transitions. [2023-09-01 05:25:47,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 30 transitions, 150 flow [2023-09-01 05:25:47,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 30 transitions, 146 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:25:47,737 INFO L231 Difference]: Finished difference. Result has 32 places, 23 transitions, 82 flow [2023-09-01 05:25:47,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=82, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2023-09-01 05:25:47,738 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2023-09-01 05:25:47,738 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 82 flow [2023-09-01 05:25:47,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:47,738 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:25:47,739 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:25:47,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:25:47,739 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:25:47,739 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:25:47,740 INFO L85 PathProgramCache]: Analyzing trace with hash 654405267, now seen corresponding path program 1 times [2023-09-01 05:25:47,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:25:47,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800541372] [2023-09-01 05:25:47,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:25:47,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:25:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:25:47,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:25:47,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:25:47,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800541372] [2023-09-01 05:25:47,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800541372] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:25:47,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:25:47,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:25:47,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148244594] [2023-09-01 05:25:47,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:25:47,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:25:47,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:25:47,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:25:47,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:25:47,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 164 [2023-09-01 05:25:47,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:47,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:25:47,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 164 [2023-09-01 05:25:47,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:25:47,881 INFO L130 PetriNetUnfolder]: 74/159 cut-off events. [2023-09-01 05:25:47,882 INFO L131 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2023-09-01 05:25:47,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 159 events. 74/159 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 509 event pairs, 23 based on Foata normal form. 12/159 useless extension candidates. Maximal degree in co-relation 416. Up to 67 conditions per place. [2023-09-01 05:25:47,883 INFO L137 encePairwiseOnDemand]: 156/164 looper letters, 25 selfloop transitions, 7 changer transitions 3/38 dead transitions. [2023-09-01 05:25:47,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 38 transitions, 194 flow [2023-09-01 05:25:47,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:25:47,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:25:47,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 335 transitions. [2023-09-01 05:25:47,885 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.510670731707317 [2023-09-01 05:25:47,885 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 335 transitions. [2023-09-01 05:25:47,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 335 transitions. [2023-09-01 05:25:47,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:25:47,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 335 transitions. [2023-09-01 05:25:47,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.75) internal successors, (335), 4 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) [2023-09-01 05:25:47,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:47,889 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:47,889 INFO L175 Difference]: Start difference. First operand has 32 places, 23 transitions, 82 flow. Second operand 4 states and 335 transitions. [2023-09-01 05:25:47,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 38 transitions, 194 flow [2023-09-01 05:25:47,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 38 transitions, 189 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:25:47,891 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 105 flow [2023-09-01 05:25:47,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=105, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2023-09-01 05:25:47,892 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2023-09-01 05:25:47,892 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 105 flow [2023-09-01 05:25:47,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:47,892 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:25:47,893 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:25:47,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:25:47,893 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:25:47,893 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:25:47,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1057395683, now seen corresponding path program 1 times [2023-09-01 05:25:47,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:25:47,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605251753] [2023-09-01 05:25:47,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:25:47,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:25:47,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:25:48,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:25:48,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:25:48,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605251753] [2023-09-01 05:25:48,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605251753] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:25:48,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:25:48,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 05:25:48,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902702616] [2023-09-01 05:25:48,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:25:48,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:25:48,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:25:48,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:25:48,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:25:48,022 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 164 [2023-09-01 05:25:48,023 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 105 flow. Second operand has 5 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:48,023 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:25:48,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 164 [2023-09-01 05:25:48,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:25:48,072 INFO L130 PetriNetUnfolder]: 54/115 cut-off events. [2023-09-01 05:25:48,072 INFO L131 PetriNetUnfolder]: For 132/132 co-relation queries the response was YES. [2023-09-01 05:25:48,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 115 events. 54/115 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 358 event pairs, 15 based on Foata normal form. 9/121 useless extension candidates. Maximal degree in co-relation 354. Up to 48 conditions per place. [2023-09-01 05:25:48,073 INFO L137 encePairwiseOnDemand]: 156/164 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2023-09-01 05:25:48,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 30 transitions, 163 flow [2023-09-01 05:25:48,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 05:25:48,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 05:25:48,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 401 transitions. [2023-09-01 05:25:48,080 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48902439024390243 [2023-09-01 05:25:48,080 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 401 transitions. [2023-09-01 05:25:48,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 401 transitions. [2023-09-01 05:25:48,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:25:48,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 401 transitions. [2023-09-01 05:25:48,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 80.2) internal successors, (401), 5 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:48,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:48,084 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:48,084 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 105 flow. Second operand 5 states and 401 transitions. [2023-09-01 05:25:48,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 30 transitions, 163 flow [2023-09-01 05:25:48,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 30 transitions, 139 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-09-01 05:25:48,087 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2023-09-01 05:25:48,087 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2023-09-01 05:25:48,089 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -4 predicate places. [2023-09-01 05:25:48,089 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2023-09-01 05:25:48,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:48,094 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-09-01 05:25:48,095 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-09-01 05:25:48,095 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-09-01 05:25:48,095 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-09-01 05:25:48,095 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-09-01 05:25:48,096 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-09-01 05:25:48,096 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-09-01 05:25:48,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-09-01 05:25:48,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-09-01 05:25:48,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-09-01 05:25:48,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-09-01 05:25:48,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-09-01 05:25:48,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-09-01 05:25:48,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-09-01 05:25:48,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-09-01 05:25:48,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 05:25:48,099 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-09-01 05:25:48,105 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:25:48,106 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:25:48,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:25:48 BasicIcfg [2023-09-01 05:25:48,114 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:25:48,114 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:25:48,114 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:25:48,114 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:25:48,115 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:25:44" (3/4) ... [2023-09-01 05:25:48,117 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:25:48,121 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:25:48,121 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:25:48,121 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-09-01 05:25:48,127 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-09-01 05:25:48,127 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-09-01 05:25:48,128 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 05:25:48,128 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:25:48,157 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:25:48,159 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:25:48,160 INFO L158 Benchmark]: Toolchain (without parser) took 4538.99ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 77.6MB in the beginning and 78.8MB in the end (delta: -1.2MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2023-09-01 05:25:48,160 INFO L158 Benchmark]: CDTParser took 0.86ms. Allocated memory is still 62.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:25:48,160 INFO L158 Benchmark]: CACSL2BoogieTranslator took 520.16ms. Allocated memory is still 100.7MB. Free memory was 77.3MB in the beginning and 57.3MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-09-01 05:25:48,161 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.04ms. Allocated memory is still 100.7MB. Free memory was 57.3MB in the beginning and 80.4MB in the end (delta: -23.0MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2023-09-01 05:25:48,161 INFO L158 Benchmark]: Boogie Preprocessor took 54.74ms. Allocated memory is still 100.7MB. Free memory was 80.4MB in the beginning and 79.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:25:48,161 INFO L158 Benchmark]: RCFGBuilder took 438.52ms. Allocated memory is still 100.7MB. Free memory was 79.2MB in the beginning and 63.6MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-09-01 05:25:48,162 INFO L158 Benchmark]: TraceAbstraction took 3391.50ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 63.0MB in the beginning and 81.9MB in the end (delta: -18.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:25:48,162 INFO L158 Benchmark]: Witness Printer took 44.99ms. Allocated memory is still 121.6MB. Free memory was 81.9MB in the beginning and 78.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:25:48,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86ms. Allocated memory is still 62.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 520.16ms. Allocated memory is still 100.7MB. Free memory was 77.3MB in the beginning and 57.3MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.04ms. Allocated memory is still 100.7MB. Free memory was 57.3MB in the beginning and 80.4MB in the end (delta: -23.0MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.74ms. Allocated memory is still 100.7MB. Free memory was 80.4MB in the beginning and 79.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 438.52ms. Allocated memory is still 100.7MB. Free memory was 79.2MB in the beginning and 63.6MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3391.50ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 63.0MB in the beginning and 81.9MB in the end (delta: -18.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Witness Printer took 44.99ms. Allocated memory is still 121.6MB. Free memory was 81.9MB in the beginning and 78.8MB 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: 2.2s, 95 PlacesBefore, 33 PlacesAfterwards, 87 TransitionsBefore, 24 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 7 FixpointIterations, 20 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 1 ChoiceCompositions, 74 TotalNumberOfCompositions, 6304 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2786, independent: 2579, independent conditional: 0, independent unconditional: 2579, dependent: 207, dependent conditional: 0, dependent unconditional: 207, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1119, independent: 1079, independent conditional: 0, independent unconditional: 1079, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2786, independent: 1500, independent conditional: 0, independent unconditional: 1500, dependent: 167, dependent conditional: 0, dependent unconditional: 167, unknown: 1119, unknown conditional: 0, unknown unconditional: 1119] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 88, Positive conditional cache size: 0, Positive unconditional cache size: 88, 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: 735]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 735]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 119 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 86 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 197 IncrementalHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 11 mSDtfsCounter, 197 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 05:25:48,187 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