./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix011_tso.oepc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix011_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a4d86e141dde5935b04f74715dd2fbb14b0de9136d07674e0b6c5447ac95e0ef --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 12:56:51,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 12:56:51,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 12:56:51,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 12:56:51,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 12:56:51,526 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 12:56:51,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 12:56:51,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 12:56:51,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 12:56:51,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 12:56:51,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 12:56:51,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 12:56:51,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 12:56:51,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 12:56:51,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 12:56:51,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 12:56:51,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 12:56:51,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 12:56:51,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 12:56:51,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 12:56:51,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 12:56:51,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 12:56:51,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 12:56:51,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 12:56:51,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 12:56:51,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 12:56:51,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 12:56:51,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 12:56:51,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 12:56:51,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 12:56:51,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 12:56:51,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 12:56:51,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 12:56:51,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 12:56:51,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 12:56:51,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 12:56:51,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 12:56:51,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 12:56:51,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 12:56:51,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 12:56:51,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 12:56:51,570 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 12:56:51,590 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 12:56:51,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 12:56:51,591 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 12:56:51,592 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 12:56:51,592 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 12:56:51,592 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 12:56:51,593 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 12:56:51,593 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 12:56:51,593 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 12:56:51,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 12:56:51,594 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 12:56:51,594 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 12:56:51,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 12:56:51,594 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 12:56:51,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 12:56:51,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 12:56:51,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 12:56:51,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 12:56:51,595 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 12:56:51,595 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 12:56:51,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 12:56:51,595 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 12:56:51,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 12:56:51,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 12:56:51,596 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 12:56:51,596 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 12:56:51,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:56:51,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 12:56:51,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 12:56:51,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 12:56:51,596 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 12:56:51,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 12:56:51,597 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 12:56:51,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 12:56:51,597 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 12:56:51,597 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 12:56:51,597 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 12:56:51,597 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4d86e141dde5935b04f74715dd2fbb14b0de9136d07674e0b6c5447ac95e0ef Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 12:56:51,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 12:56:51,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 12:56:51,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 12:56:51,850 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 12:56:51,851 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 12:56:51,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix011_tso.oepc.i [2023-08-30 12:56:52,806 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 12:56:52,954 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 12:56:52,955 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix011_tso.oepc.i [2023-08-30 12:56:52,962 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e30f26c36/72845a41f9c84ee692835b24a02ae4f3/FLAG78f73c821 [2023-08-30 12:56:52,973 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e30f26c36/72845a41f9c84ee692835b24a02ae4f3 [2023-08-30 12:56:52,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 12:56:52,975 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 12:56:52,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 12:56:52,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 12:56:52,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 12:56:52,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:56:52" (1/1) ... [2023-08-30 12:56:52,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@371e0c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:52, skipping insertion in model container [2023-08-30 12:56:52,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:56:52" (1/1) ... [2023-08-30 12:56:52,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 12:56:53,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 12:56:53,122 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/mix011_tso.oepc.i[949,962] [2023-08-30 12:56:53,282 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:56:53,290 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 12:56:53,297 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/mix011_tso.oepc.i[949,962] [2023-08-30 12:56:53,350 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:56:53,390 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 12:56:53,391 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 12:56:53,395 INFO L208 MainTranslator]: Completed translation [2023-08-30 12:56:53,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:53 WrapperNode [2023-08-30 12:56:53,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 12:56:53,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 12:56:53,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 12:56:53,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 12:56:53,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:53" (1/1) ... [2023-08-30 12:56:53,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:53" (1/1) ... [2023-08-30 12:56:53,454 INFO L138 Inliner]: procedures = 176, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 156 [2023-08-30 12:56:53,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 12:56:53,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 12:56:53,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 12:56:53,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 12:56:53,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:53" (1/1) ... [2023-08-30 12:56:53,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:53" (1/1) ... [2023-08-30 12:56:53,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:53" (1/1) ... [2023-08-30 12:56:53,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:53" (1/1) ... [2023-08-30 12:56:53,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:53" (1/1) ... [2023-08-30 12:56:53,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:53" (1/1) ... [2023-08-30 12:56:53,494 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:53" (1/1) ... [2023-08-30 12:56:53,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:53" (1/1) ... [2023-08-30 12:56:53,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 12:56:53,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 12:56:53,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 12:56:53,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 12:56:53,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:53" (1/1) ... [2023-08-30 12:56:53,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:56:53,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 12:56:53,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 12:56:53,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 12:56:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 12:56:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 12:56:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 12:56:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 12:56:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 12:56:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 12:56:53,558 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 12:56:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 12:56:53,558 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 12:56:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 12:56:53,559 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 12:56:53,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 12:56:53,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 12:56:53,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 12:56:53,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 12:56:53,560 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 12:56:53,664 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 12:56:53,665 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 12:56:53,940 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 12:56:54,013 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 12:56:54,013 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 12:56:54,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:56:54 BoogieIcfgContainer [2023-08-30 12:56:54,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 12:56:54,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 12:56:54,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 12:56:54,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 12:56:54,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 12:56:52" (1/3) ... [2023-08-30 12:56:54,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b54e388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:56:54, skipping insertion in model container [2023-08-30 12:56:54,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:56:53" (2/3) ... [2023-08-30 12:56:54,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b54e388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:56:54, skipping insertion in model container [2023-08-30 12:56:54,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:56:54" (3/3) ... [2023-08-30 12:56:54,020 INFO L112 eAbstractionObserver]: Analyzing ICFG mix011_tso.oepc.i [2023-08-30 12:56:54,024 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 12:56:54,030 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 12:56:54,030 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 12:56:54,030 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 12:56:54,072 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 12:56:54,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 118 transitions, 251 flow [2023-08-30 12:56:54,167 INFO L130 PetriNetUnfolder]: 2/115 cut-off events. [2023-08-30 12:56:54,168 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:56:54,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 115 events. 2/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2023-08-30 12:56:54,172 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 118 transitions, 251 flow [2023-08-30 12:56:54,177 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 115 transitions, 239 flow [2023-08-30 12:56:54,181 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 12:56:54,196 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 115 transitions, 239 flow [2023-08-30 12:56:54,197 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 115 transitions, 239 flow [2023-08-30 12:56:54,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 115 transitions, 239 flow [2023-08-30 12:56:54,213 INFO L130 PetriNetUnfolder]: 2/115 cut-off events. [2023-08-30 12:56:54,213 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:56:54,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 115 events. 2/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2023-08-30 12:56:54,215 INFO L119 LiptonReduction]: Number of co-enabled transitions 2684 [2023-08-30 12:56:57,130 INFO L134 LiptonReduction]: Checked pairs total: 9339 [2023-08-30 12:56:57,131 INFO L136 LiptonReduction]: Total number of compositions: 92 [2023-08-30 12:56:57,140 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 12:56:57,143 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;@5bbdd2df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 12:56:57,144 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-30 12:56:57,148 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 12:56:57,148 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:56:57,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:56:57,148 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 12:56:57,149 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 12:56:57,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:56:57,151 INFO L85 PathProgramCache]: Analyzing trace with hash -2005226500, now seen corresponding path program 1 times [2023-08-30 12:56:57,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:56:57,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036501787] [2023-08-30 12:56:57,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:56:57,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:56:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:56:57,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:56:57,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:56:57,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036501787] [2023-08-30 12:56:57,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036501787] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:56:57,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:56:57,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 12:56:57,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250860990] [2023-08-30 12:56:57,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:56:57,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 12:56:57,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:56:57,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 12:56:57,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 12:56:57,425 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 210 [2023-08-30 12:56:57,429 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:56:57,429 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:56:57,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 210 [2023-08-30 12:56:57,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:56:57,722 INFO L130 PetriNetUnfolder]: 1271/2043 cut-off events. [2023-08-30 12:56:57,723 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-30 12:56:57,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4118 conditions, 2043 events. 1271/2043 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 10426 event pairs, 543 based on Foata normal form. 138/1620 useless extension candidates. Maximal degree in co-relation 4107. Up to 1757 conditions per place. [2023-08-30 12:56:57,732 INFO L137 encePairwiseOnDemand]: 198/210 looper letters, 38 selfloop transitions, 4 changer transitions 0/46 dead transitions. [2023-08-30 12:56:57,732 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 46 transitions, 191 flow [2023-08-30 12:56:57,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 12:56:57,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 12:56:57,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 339 transitions. [2023-08-30 12:56:57,741 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5380952380952381 [2023-08-30 12:56:57,742 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 339 transitions. [2023-08-30 12:56:57,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 339 transitions. [2023-08-30 12:56:57,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:56:57,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 339 transitions. [2023-08-30 12:56:57,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:56:57,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:56:57,750 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:56:57,751 INFO L175 Difference]: Start difference. First operand has 41 places, 32 transitions, 73 flow. Second operand 3 states and 339 transitions. [2023-08-30 12:56:57,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 46 transitions, 191 flow [2023-08-30 12:56:57,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 46 transitions, 186 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 12:56:57,755 INFO L231 Difference]: Finished difference. Result has 41 places, 34 transitions, 106 flow [2023-08-30 12:56:57,756 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=41, PETRI_TRANSITIONS=34} [2023-08-30 12:56:57,758 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 0 predicate places. [2023-08-30 12:56:57,758 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 34 transitions, 106 flow [2023-08-30 12:56:57,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:56:57,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:56:57,759 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:56:57,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 12:56:57,759 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 12:56:57,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:56:57,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1497859086, now seen corresponding path program 1 times [2023-08-30 12:56:57,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:56:57,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658757350] [2023-08-30 12:56:57,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:56:57,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:56:57,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:56:57,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:56:57,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:56:57,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658757350] [2023-08-30 12:56:57,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658757350] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:56:57,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:56:57,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 12:56:57,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561349381] [2023-08-30 12:56:57,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:56:57,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 12:56:57,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:56:57,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 12:56:57,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 12:56:57,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 210 [2023-08-30 12:56:57,905 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 34 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:56:57,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:56:57,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 210 [2023-08-30 12:56:57,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:56:58,077 INFO L130 PetriNetUnfolder]: 933/1509 cut-off events. [2023-08-30 12:56:58,077 INFO L131 PetriNetUnfolder]: For 133/133 co-relation queries the response was YES. [2023-08-30 12:56:58,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3636 conditions, 1509 events. 933/1509 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 7351 event pairs, 343 based on Foata normal form. 0/1301 useless extension candidates. Maximal degree in co-relation 3625. Up to 1222 conditions per place. [2023-08-30 12:56:58,083 INFO L137 encePairwiseOnDemand]: 203/210 looper letters, 35 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2023-08-30 12:56:58,083 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 43 transitions, 200 flow [2023-08-30 12:56:58,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 12:56:58,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 12:56:58,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 426 transitions. [2023-08-30 12:56:58,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5071428571428571 [2023-08-30 12:56:58,092 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 426 transitions. [2023-08-30 12:56:58,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 426 transitions. [2023-08-30 12:56:58,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:56:58,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 426 transitions. [2023-08-30 12:56:58,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 106.5) internal successors, (426), 4 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:56:58,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 210.0) internal successors, (1050), 5 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:56:58,097 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 210.0) internal successors, (1050), 5 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:56:58,097 INFO L175 Difference]: Start difference. First operand has 41 places, 34 transitions, 106 flow. Second operand 4 states and 426 transitions. [2023-08-30 12:56:58,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 43 transitions, 200 flow [2023-08-30 12:56:58,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 43 transitions, 196 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 12:56:58,098 INFO L231 Difference]: Finished difference. Result has 40 places, 31 transitions, 98 flow [2023-08-30 12:56:58,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=98, PETRI_PLACES=40, PETRI_TRANSITIONS=31} [2023-08-30 12:56:58,099 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -1 predicate places. [2023-08-30 12:56:58,099 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 31 transitions, 98 flow [2023-08-30 12:56:58,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:56:58,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:56:58,100 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:56:58,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 12:56:58,100 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 12:56:58,102 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:56:58,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1497859087, now seen corresponding path program 1 times [2023-08-30 12:56:58,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:56:58,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274847477] [2023-08-30 12:56:58,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:56:58,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:56:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:56:58,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:56:58,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:56:58,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274847477] [2023-08-30 12:56:58,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274847477] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:56:58,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:56:58,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 12:56:58,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041170096] [2023-08-30 12:56:58,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:56:58,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 12:56:58,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:56:58,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 12:56:58,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 12:56:58,171 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 210 [2023-08-30 12:56:58,172 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:56:58,172 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:56:58,172 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 210 [2023-08-30 12:56:58,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:56:58,284 INFO L130 PetriNetUnfolder]: 412/714 cut-off events. [2023-08-30 12:56:58,284 INFO L131 PetriNetUnfolder]: For 217/217 co-relation queries the response was YES. [2023-08-30 12:56:58,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1711 conditions, 714 events. 412/714 cut-off events. For 217/217 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3099 event pairs, 169 based on Foata normal form. 33/705 useless extension candidates. Maximal degree in co-relation 1699. Up to 256 conditions per place. [2023-08-30 12:56:58,287 INFO L137 encePairwiseOnDemand]: 202/210 looper letters, 42 selfloop transitions, 7 changer transitions 3/56 dead transitions. [2023-08-30 12:56:58,287 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 56 transitions, 264 flow [2023-08-30 12:56:58,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 12:56:58,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 12:56:58,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 440 transitions. [2023-08-30 12:56:58,289 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2023-08-30 12:56:58,289 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 440 transitions. [2023-08-30 12:56:58,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 440 transitions. [2023-08-30 12:56:58,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:56:58,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 440 transitions. [2023-08-30 12:56:58,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:56:58,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 210.0) internal successors, (1050), 5 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:56:58,292 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 210.0) internal successors, (1050), 5 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:56:58,292 INFO L175 Difference]: Start difference. First operand has 40 places, 31 transitions, 98 flow. Second operand 4 states and 440 transitions. [2023-08-30 12:56:58,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 56 transitions, 264 flow [2023-08-30 12:56:58,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 56 transitions, 259 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 12:56:58,293 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 121 flow [2023-08-30 12:56:58,293 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=121, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2023-08-30 12:56:58,294 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2023-08-30 12:56:58,294 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 121 flow [2023-08-30 12:56:58,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:56:58,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:56:58,295 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:56:58,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 12:56:58,295 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 12:56:58,295 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:56:58,295 INFO L85 PathProgramCache]: Analyzing trace with hash -387195714, now seen corresponding path program 1 times [2023-08-30 12:56:58,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:56:58,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438051661] [2023-08-30 12:56:58,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:56:58,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:56:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:56:58,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:56:58,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:56:58,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438051661] [2023-08-30 12:56:58,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438051661] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:56:58,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:56:58,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 12:56:58,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905529328] [2023-08-30 12:56:58,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:56:58,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 12:56:58,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:56:58,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 12:56:58,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 12:56:58,377 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 210 [2023-08-30 12:56:58,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 121 flow. Second operand has 5 states, 5 states have (on average 99.2) internal successors, (496), 5 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:56:58,380 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:56:58,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 210 [2023-08-30 12:56:58,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:56:58,467 INFO L130 PetriNetUnfolder]: 352/590 cut-off events. [2023-08-30 12:56:58,467 INFO L131 PetriNetUnfolder]: For 435/435 co-relation queries the response was YES. [2023-08-30 12:56:58,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1584 conditions, 590 events. 352/590 cut-off events. For 435/435 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2532 event pairs, 153 based on Foata normal form. 16/582 useless extension candidates. Maximal degree in co-relation 1571. Up to 256 conditions per place. [2023-08-30 12:56:58,468 INFO L137 encePairwiseOnDemand]: 202/210 looper letters, 0 selfloop transitions, 0 changer transitions 46/46 dead transitions. [2023-08-30 12:56:58,468 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 46 transitions, 225 flow [2023-08-30 12:56:58,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 12:56:58,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 12:56:58,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 526 transitions. [2023-08-30 12:56:58,470 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5009523809523809 [2023-08-30 12:56:58,470 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 526 transitions. [2023-08-30 12:56:58,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 526 transitions. [2023-08-30 12:56:58,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:56:58,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 526 transitions. [2023-08-30 12:56:58,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.2) internal successors, (526), 5 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:56:58,473 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 210.0) internal successors, (1260), 6 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:56:58,473 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 210.0) internal successors, (1260), 6 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:56:58,473 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 121 flow. Second operand 5 states and 526 transitions. [2023-08-30 12:56:58,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 46 transitions, 225 flow [2023-08-30 12:56:58,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 46 transitions, 201 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-30 12:56:58,475 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-30 12:56:58,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-08-30 12:56:58,475 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -6 predicate places. [2023-08-30 12:56:58,476 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-30 12:56:58,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 99.2) internal successors, (496), 5 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:56:58,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-08-30 12:56:58,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-08-30 12:56:58,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-08-30 12:56:58,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-08-30 12:56:58,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-08-30 12:56:58,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-08-30 12:56:58,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-30 12:56:58,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-08-30 12:56:58,480 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-08-30 12:56:58,480 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-08-30 12:56:58,480 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-08-30 12:56:58,480 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-08-30 12:56:58,480 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-08-30 12:56:58,480 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-08-30 12:56:58,480 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-08-30 12:56:58,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 12:56:58,481 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-30 12:56:58,484 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 12:56:58,484 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 12:56:58,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 12:56:58 BasicIcfg [2023-08-30 12:56:58,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 12:56:58,486 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 12:56:58,487 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 12:56:58,487 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 12:56:58,487 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:56:54" (3/4) ... [2023-08-30 12:56:58,488 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 12:56:58,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 12:56:58,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 12:56:58,492 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 12:56:58,494 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2023-08-30 12:56:58,495 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-08-30 12:56:58,495 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 12:56:58,495 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 12:56:58,519 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 12:56:58,519 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 12:56:58,520 INFO L158 Benchmark]: Toolchain (without parser) took 5544.37ms. Allocated memory was 69.2MB in the beginning and 138.4MB in the end (delta: 69.2MB). Free memory was 33.2MB in the beginning and 76.0MB in the end (delta: -42.8MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2023-08-30 12:56:58,520 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 69.2MB. Free memory is still 46.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 12:56:58,520 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.09ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 33.0MB in the beginning and 66.0MB in the end (delta: -33.0MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2023-08-30 12:56:58,520 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.53ms. Allocated memory is still 90.2MB. Free memory was 66.0MB in the beginning and 63.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:56:58,520 INFO L158 Benchmark]: Boogie Preprocessor took 45.74ms. Allocated memory is still 90.2MB. Free memory was 63.5MB in the beginning and 61.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:56:58,521 INFO L158 Benchmark]: RCFGBuilder took 512.44ms. Allocated memory is still 90.2MB. Free memory was 61.4MB in the beginning and 51.3MB in the end (delta: 10.1MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2023-08-30 12:56:58,521 INFO L158 Benchmark]: TraceAbstraction took 4470.44ms. Allocated memory was 90.2MB in the beginning and 138.4MB in the end (delta: 48.2MB). Free memory was 50.9MB in the beginning and 79.1MB in the end (delta: -28.3MB). Peak memory consumption was 62.8MB. Max. memory is 16.1GB. [2023-08-30 12:56:58,521 INFO L158 Benchmark]: Witness Printer took 32.72ms. Allocated memory is still 138.4MB. Free memory was 79.1MB in the beginning and 76.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:56:58,522 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 69.2MB. Free memory is still 46.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.09ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 33.0MB in the beginning and 66.0MB in the end (delta: -33.0MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.53ms. Allocated memory is still 90.2MB. Free memory was 66.0MB in the beginning and 63.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.74ms. Allocated memory is still 90.2MB. Free memory was 63.5MB in the beginning and 61.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 512.44ms. Allocated memory is still 90.2MB. Free memory was 61.4MB in the beginning and 51.3MB in the end (delta: 10.1MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4470.44ms. Allocated memory was 90.2MB in the beginning and 138.4MB in the end (delta: 48.2MB). Free memory was 50.9MB in the beginning and 79.1MB in the end (delta: -28.3MB). Peak memory consumption was 62.8MB. Max. memory is 16.1GB. * Witness Printer took 32.72ms. Allocated memory is still 138.4MB. Free memory was 79.1MB in the beginning and 76.0MB 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: 2.9s, 123 PlacesBefore, 41 PlacesAfterwards, 115 TransitionsBefore, 32 TransitionsAfterwards, 2684 CoEnabledTransitionPairs, 6 FixpointIterations, 41 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 92 TotalNumberOfCompositions, 9339 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4008, independent: 3734, independent conditional: 0, independent unconditional: 3734, dependent: 274, dependent conditional: 0, dependent unconditional: 274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1429, independent: 1382, independent conditional: 0, independent unconditional: 1382, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4008, independent: 2352, independent conditional: 0, independent unconditional: 2352, dependent: 227, dependent conditional: 0, dependent unconditional: 227, unknown: 1429, unknown conditional: 0, unknown unconditional: 1429] , Statistics on independence cache: Total cache size (in pairs): 178, Positive cache size: 156, Positive conditional cache size: 0, Positive unconditional cache size: 156, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 820]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 820]: 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, 153 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: 4.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 111 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 90 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 257 IncrementalHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 10 mSDtfsCounter, 257 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=121occurred 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, 0.4s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 12:56:58,537 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