./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.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/safe030_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 1730fa7f98e17ee8b58920ef3daf63ee88225f1b42924032a532b5f5db33fba5 --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 08:49:50,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:49:50,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:49:50,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:49:50,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:49:50,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:49:50,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:49:50,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:49:50,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:49:50,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:49:50,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:49:50,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:49:50,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:49:50,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:49:50,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:49:50,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:49:50,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:49:50,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:49:50,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:49:50,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:49:50,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:49:50,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:49:50,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:49:50,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:49:50,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:49:50,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:49:50,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:49:50,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:49:50,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:49:50,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:49:50,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:49:50,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:49:50,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:49:50,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:49:50,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:49:50,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:49:50,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:49:50,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:49:50,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:49:50,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:49:50,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:49:50,416 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:49:50,439 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:49:50,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:49:50,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:49:50,441 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:49:50,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:49:50,442 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:49:50,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:49:50,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:49:50,444 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:49:50,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:49:50,445 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:49:50,445 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:49:50,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:49:50,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:49:50,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:49:50,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:49:50,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:49:50,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:49:50,446 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:49:50,446 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:49:50,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:49:50,446 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:49:50,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:49:50,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:49:50,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:49:50,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:49:50,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:49:50,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:49:50,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:49:50,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:49:50,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:49:50,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:49:50,449 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:49:50,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:49:50,449 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:49:50,449 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:49:50,449 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:49:50,450 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1730fa7f98e17ee8b58920ef3daf63ee88225f1b42924032a532b5f5db33fba5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:49:50,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:49:50,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:49:50,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:49:50,804 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:49:50,804 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:49:50,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.i [2023-08-30 08:49:51,852 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:49:52,100 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:49:52,101 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.i [2023-08-30 08:49:52,115 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77a6f0d91/6211eff8d549409f8ecc456a8b865f91/FLAG9704f4d8c [2023-08-30 08:49:52,128 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77a6f0d91/6211eff8d549409f8ecc456a8b865f91 [2023-08-30 08:49:52,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:49:52,131 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:49:52,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:49:52,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:49:52,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:49:52,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:49:52" (1/1) ... [2023-08-30 08:49:52,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48e0c191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:52, skipping insertion in model container [2023-08-30 08:49:52,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:49:52" (1/1) ... [2023-08-30 08:49:52,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:49:52,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:49:52,373 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/safe030_tso.i[945,958] [2023-08-30 08:49:52,517 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:49:52,528 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:49:52,543 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/safe030_tso.i[945,958] [2023-08-30 08:49:52,596 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:49:52,626 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:49:52,627 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:49:52,633 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:49:52,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:52 WrapperNode [2023-08-30 08:49:52,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:49:52,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:49:52,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:49:52,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:49:52,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:52" (1/1) ... [2023-08-30 08:49:52,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:52" (1/1) ... [2023-08-30 08:49:52,675 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2023-08-30 08:49:52,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:49:52,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:49:52,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:49:52,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:49:52,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:52" (1/1) ... [2023-08-30 08:49:52,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:52" (1/1) ... [2023-08-30 08:49:52,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:52" (1/1) ... [2023-08-30 08:49:52,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:52" (1/1) ... [2023-08-30 08:49:52,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:52" (1/1) ... [2023-08-30 08:49:52,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:52" (1/1) ... [2023-08-30 08:49:52,711 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:52" (1/1) ... [2023-08-30 08:49:52,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:52" (1/1) ... [2023-08-30 08:49:52,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:49:52,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:49:52,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:49:52,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:49:52,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:52" (1/1) ... [2023-08-30 08:49:52,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:49:52,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:49:52,764 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 08:49:52,785 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 08:49:52,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:49:52,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:49:52,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:49:52,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:49:52,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:49:52,805 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 08:49:52,805 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 08:49:52,805 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 08:49:52,805 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 08:49:52,805 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 08:49:52,805 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 08:49:52,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:49:52,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:49:52,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:49:52,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:49:52,807 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 08:49:52,920 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:49:52,922 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:49:53,133 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:49:53,156 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:49:53,157 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:49:53,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:49:53 BoogieIcfgContainer [2023-08-30 08:49:53,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:49:53,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:49:53,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:49:53,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:49:53,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:49:52" (1/3) ... [2023-08-30 08:49:53,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dbb090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:49:53, skipping insertion in model container [2023-08-30 08:49:53,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:52" (2/3) ... [2023-08-30 08:49:53,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dbb090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:49:53, skipping insertion in model container [2023-08-30 08:49:53,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:49:53" (3/3) ... [2023-08-30 08:49:53,166 INFO L112 eAbstractionObserver]: Analyzing ICFG safe030_tso.i [2023-08-30 08:49:53,173 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:49:53,181 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:49:53,181 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 08:49:53,181 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:49:53,283 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 08:49:53,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 88 transitions, 191 flow [2023-08-30 08:49:53,394 INFO L130 PetriNetUnfolder]: 2/85 cut-off events. [2023-08-30 08:49:53,394 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:49:53,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 85 events. 2/85 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. 0/77 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2023-08-30 08:49:53,399 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 88 transitions, 191 flow [2023-08-30 08:49:53,403 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 85 transitions, 179 flow [2023-08-30 08:49:53,407 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:49:53,418 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 85 transitions, 179 flow [2023-08-30 08:49:53,421 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 85 transitions, 179 flow [2023-08-30 08:49:53,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 179 flow [2023-08-30 08:49:53,454 INFO L130 PetriNetUnfolder]: 2/85 cut-off events. [2023-08-30 08:49:53,454 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:49:53,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 85 events. 2/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2023-08-30 08:49:53,465 INFO L119 LiptonReduction]: Number of co-enabled transitions 2016 [2023-08-30 08:49:55,574 INFO L134 LiptonReduction]: Checked pairs total: 5603 [2023-08-30 08:49:55,574 INFO L136 LiptonReduction]: Total number of compositions: 72 [2023-08-30 08:49:55,588 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:49:55,594 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;@4728e247, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:49:55,594 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-30 08:49:55,596 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-30 08:49:55,597 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:49:55,597 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:49:55,597 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 08:49:55,598 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 08:49:55,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:49:55,602 INFO L85 PathProgramCache]: Analyzing trace with hash 308918858, now seen corresponding path program 1 times [2023-08-30 08:49:55,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:49:55,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419702139] [2023-08-30 08:49:55,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:49:55,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:49:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:49:55,833 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 08:49:55,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:49:55,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419702139] [2023-08-30 08:49:55,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419702139] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:49:55,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:49:55,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:49:55,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133565040] [2023-08-30 08:49:55,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:49:55,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:49:55,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:49:55,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:49:55,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:49:55,874 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 160 [2023-08-30 08:49:55,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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 08:49:55,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:49:55,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 160 [2023-08-30 08:49:55,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:49:55,997 INFO L130 PetriNetUnfolder]: 364/616 cut-off events. [2023-08-30 08:49:55,997 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2023-08-30 08:49:55,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1259 conditions, 616 events. 364/616 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 2699 event pairs, 96 based on Foata normal form. 0/439 useless extension candidates. Maximal degree in co-relation 1248. Up to 529 conditions per place. [2023-08-30 08:49:56,003 INFO L137 encePairwiseOnDemand]: 149/160 looper letters, 28 selfloop transitions, 4 changer transitions 0/35 dead transitions. [2023-08-30 08:49:56,003 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 35 transitions, 149 flow [2023-08-30 08:49:56,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:49:56,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:49:56,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-08-30 08:49:56,045 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2023-08-30 08:49:56,046 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-08-30 08:49:56,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-08-30 08:49:56,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:49:56,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-08-30 08:49:56,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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 08:49:56,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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 08:49:56,088 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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 08:49:56,090 INFO L175 Difference]: Start difference. First operand has 33 places, 24 transitions, 57 flow. Second operand 3 states and 256 transitions. [2023-08-30 08:49:56,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 35 transitions, 149 flow [2023-08-30 08:49:56,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 35 transitions, 144 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 08:49:56,103 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 88 flow [2023-08-30 08:49:56,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, 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=88, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2023-08-30 08:49:56,108 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2023-08-30 08:49:56,109 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 88 flow [2023-08-30 08:49:56,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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 08:49:56,109 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:49:56,109 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:49:56,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:49:56,110 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 08:49:56,110 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:49:56,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1159965907, now seen corresponding path program 1 times [2023-08-30 08:49:56,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:49:56,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963253640] [2023-08-30 08:49:56,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:49:56,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:49:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:49:56,182 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 08:49:56,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:49:56,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963253640] [2023-08-30 08:49:56,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963253640] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:49:56,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:49:56,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:49:56,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161322372] [2023-08-30 08:49:56,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:49:56,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:49:56,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:49:56,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:49:56,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:49:56,193 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 160 [2023-08-30 08:49:56,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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 08:49:56,193 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:49:56,193 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 160 [2023-08-30 08:49:56,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:49:56,296 INFO L130 PetriNetUnfolder]: 249/425 cut-off events. [2023-08-30 08:49:56,296 INFO L131 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2023-08-30 08:49:56,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1099 conditions, 425 events. 249/425 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1662 event pairs, 60 based on Foata normal form. 0/351 useless extension candidates. Maximal degree in co-relation 1088. Up to 337 conditions per place. [2023-08-30 08:49:56,302 INFO L137 encePairwiseOnDemand]: 153/160 looper letters, 25 selfloop transitions, 4 changer transitions 0/32 dead transitions. [2023-08-30 08:49:56,302 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 32 transitions, 156 flow [2023-08-30 08:49:56,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:49:56,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:49:56,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 320 transitions. [2023-08-30 08:49:56,307 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-08-30 08:49:56,308 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 320 transitions. [2023-08-30 08:49:56,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 320 transitions. [2023-08-30 08:49:56,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:49:56,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 320 transitions. [2023-08-30 08:49:56,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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 08:49:56,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 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 08:49:56,314 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 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 08:49:56,314 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 88 flow. Second operand 4 states and 320 transitions. [2023-08-30 08:49:56,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 32 transitions, 156 flow [2023-08-30 08:49:56,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 32 transitions, 152 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:49:56,318 INFO L231 Difference]: Finished difference. Result has 32 places, 23 transitions, 80 flow [2023-08-30 08:49:56,318 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=72, 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=80, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2023-08-30 08:49:56,319 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2023-08-30 08:49:56,319 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 80 flow [2023-08-30 08:49:56,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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 08:49:56,319 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:49:56,319 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:49:56,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:49:56,320 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 08:49:56,322 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:49:56,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1159965906, now seen corresponding path program 1 times [2023-08-30 08:49:56,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:49:56,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382242710] [2023-08-30 08:49:56,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:49:56,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:49:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:49:56,422 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 08:49:56,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:49:56,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382242710] [2023-08-30 08:49:56,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382242710] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:49:56,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:49:56,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:49:56,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353605789] [2023-08-30 08:49:56,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:49:56,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:49:56,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:49:56,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:49:56,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:49:56,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 160 [2023-08-30 08:49:56,432 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 80 flow. Second operand has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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 08:49:56,432 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:49:56,432 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 160 [2023-08-30 08:49:56,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:49:56,509 INFO L130 PetriNetUnfolder]: 170/297 cut-off events. [2023-08-30 08:49:56,509 INFO L131 PetriNetUnfolder]: For 138/138 co-relation queries the response was YES. [2023-08-30 08:49:56,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 764 conditions, 297 events. 170/297 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1037 event pairs, 39 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 752. Up to 120 conditions per place. [2023-08-30 08:49:56,512 INFO L137 encePairwiseOnDemand]: 153/160 looper letters, 29 selfloop transitions, 7 changer transitions 3/42 dead transitions. [2023-08-30 08:49:56,512 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 42 transitions, 208 flow [2023-08-30 08:49:56,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:49:56,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:49:56,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 330 transitions. [2023-08-30 08:49:56,514 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.515625 [2023-08-30 08:49:56,514 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 330 transitions. [2023-08-30 08:49:56,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 330 transitions. [2023-08-30 08:49:56,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:49:56,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 330 transitions. [2023-08-30 08:49:56,516 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 08:49:56,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 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 08:49:56,517 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 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 08:49:56,517 INFO L175 Difference]: Start difference. First operand has 32 places, 23 transitions, 80 flow. Second operand 4 states and 330 transitions. [2023-08-30 08:49:56,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 42 transitions, 208 flow [2023-08-30 08:49:56,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 42 transitions, 203 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 08:49:56,520 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 101 flow [2023-08-30 08:49:56,520 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=75, 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=101, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2023-08-30 08:49:56,521 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2023-08-30 08:49:56,524 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 101 flow [2023-08-30 08:49:56,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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 08:49:56,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:49:56,525 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:49:56,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:49:56,525 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 08:49:56,526 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:49:56,526 INFO L85 PathProgramCache]: Analyzing trace with hash -927587345, now seen corresponding path program 1 times [2023-08-30 08:49:56,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:49:56,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613709036] [2023-08-30 08:49:56,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:49:56,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:49:56,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:49:56,626 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 08:49:56,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:49:56,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613709036] [2023-08-30 08:49:56,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613709036] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:49:56,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:49:56,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:49:56,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340725451] [2023-08-30 08:49:56,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:49:56,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:49:56,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:49:56,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:49:56,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:49:56,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 160 [2023-08-30 08:49:56,643 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 101 flow. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 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 08:49:56,643 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:49:56,644 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 160 [2023-08-30 08:49:56,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:49:56,726 INFO L130 PetriNetUnfolder]: 156/271 cut-off events. [2023-08-30 08:49:56,726 INFO L131 PetriNetUnfolder]: For 276/276 co-relation queries the response was YES. [2023-08-30 08:49:56,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 821 conditions, 271 events. 156/271 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 944 event pairs, 39 based on Foata normal form. 9/273 useless extension candidates. Maximal degree in co-relation 808. Up to 120 conditions per place. [2023-08-30 08:49:56,727 INFO L137 encePairwiseOnDemand]: 153/160 looper letters, 0 selfloop transitions, 0 changer transitions 36/36 dead transitions. [2023-08-30 08:49:56,727 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 187 flow [2023-08-30 08:49:56,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:49:56,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:49:56,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 396 transitions. [2023-08-30 08:49:56,732 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.495 [2023-08-30 08:49:56,732 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 396 transitions. [2023-08-30 08:49:56,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 396 transitions. [2023-08-30 08:49:56,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:49:56,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 396 transitions. [2023-08-30 08:49:56,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 79.2) internal successors, (396), 5 states have internal predecessors, (396), 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 08:49:56,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 160.0) internal successors, (960), 6 states have internal predecessors, (960), 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 08:49:56,736 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 160.0) internal successors, (960), 6 states have internal predecessors, (960), 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 08:49:56,736 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 101 flow. Second operand 5 states and 396 transitions. [2023-08-30 08:49:56,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 187 flow [2023-08-30 08:49:56,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 36 transitions, 163 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-30 08:49:56,740 INFO L231 Difference]: Finished difference. Result has 31 places, 0 transitions, 0 flow [2023-08-30 08:49:56,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=31, PETRI_TRANSITIONS=0} [2023-08-30 08:49:56,742 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -2 predicate places. [2023-08-30 08:49:56,742 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 0 transitions, 0 flow [2023-08-30 08:49:56,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 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 08:49:56,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-08-30 08:49:56,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-08-30 08:49:56,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-08-30 08:49:56,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-08-30 08:49:56,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-08-30 08:49:56,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-08-30 08:49:56,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-30 08:49:56,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-08-30 08:49:56,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-08-30 08:49:56,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-08-30 08:49:56,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-08-30 08:49:56,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-08-30 08:49:56,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-08-30 08:49:56,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-08-30 08:49:56,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-08-30 08:49:56,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:49:56,751 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-30 08:49:56,758 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:49:56,758 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:49:56,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:49:56 BasicIcfg [2023-08-30 08:49:56,766 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:49:56,766 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:49:56,767 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:49:56,767 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:49:56,767 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:49:53" (3/4) ... [2023-08-30 08:49:56,769 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:49:56,774 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 08:49:56,774 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 08:49:56,774 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 08:49:56,778 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-08-30 08:49:56,778 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 08:49:56,778 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 08:49:56,779 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:49:56,803 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:49:56,803 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:49:56,803 INFO L158 Benchmark]: Toolchain (without parser) took 4672.26ms. Allocated memory was 69.2MB in the beginning and 109.1MB in the end (delta: 39.8MB). Free memory was 33.5MB in the beginning and 72.9MB in the end (delta: -39.4MB). Peak memory consumption was 802.1kB. Max. memory is 16.1GB. [2023-08-30 08:49:56,804 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 69.2MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:49:56,804 INFO L158 Benchmark]: CACSL2BoogieTranslator took 498.70ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 33.3MB in the beginning and 53.7MB in the end (delta: -20.4MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2023-08-30 08:49:56,804 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.51ms. Allocated memory is still 90.2MB. Free memory was 53.7MB in the beginning and 51.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:49:56,804 INFO L158 Benchmark]: Boogie Preprocessor took 36.82ms. Allocated memory is still 90.2MB. Free memory was 51.7MB in the beginning and 50.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:49:56,805 INFO L158 Benchmark]: RCFGBuilder took 444.33ms. Allocated memory is still 90.2MB. Free memory was 50.2MB in the beginning and 57.8MB in the end (delta: -7.6MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2023-08-30 08:49:56,805 INFO L158 Benchmark]: TraceAbstraction took 3605.39ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 57.0MB in the beginning and 76.1MB in the end (delta: -19.2MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2023-08-30 08:49:56,805 INFO L158 Benchmark]: Witness Printer took 36.52ms. Allocated memory is still 109.1MB. Free memory was 76.1MB in the beginning and 72.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:49:56,807 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 69.2MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 498.70ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 33.3MB in the beginning and 53.7MB in the end (delta: -20.4MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.51ms. Allocated memory is still 90.2MB. Free memory was 53.7MB in the beginning and 51.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.82ms. Allocated memory is still 90.2MB. Free memory was 51.7MB in the beginning and 50.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 444.33ms. Allocated memory is still 90.2MB. Free memory was 50.2MB in the beginning and 57.8MB in the end (delta: -7.6MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3605.39ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 57.0MB in the beginning and 76.1MB in the end (delta: -19.2MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. * Witness Printer took 36.52ms. Allocated memory is still 109.1MB. Free memory was 76.1MB in the beginning and 72.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 93 PlacesBefore, 33 PlacesAfterwards, 85 TransitionsBefore, 24 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 72 TotalNumberOfCompositions, 5603 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2414, independent: 2234, independent conditional: 0, independent unconditional: 2234, dependent: 180, dependent conditional: 0, dependent unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1123, independent: 1077, independent conditional: 0, independent unconditional: 1077, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2414, independent: 1157, independent conditional: 0, independent unconditional: 1157, dependent: 134, dependent conditional: 0, dependent unconditional: 134, unknown: 1123, unknown conditional: 0, unknown unconditional: 1123] , Statistics on independence cache: Total cache size (in pairs): 105, Positive cache size: 89, Positive conditional cache size: 0, Positive unconditional cache size: 89, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 729]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 729]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 744]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 744]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 759]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 759]: 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, 117 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: 3.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 192 IncrementalHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 10 mSDtfsCounter, 192 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=101occurred 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, 0.1s 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! [2023-08-30 08:49:56,824 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