./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix015.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix015.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f8371a34a183593aa0efc399c0d4d9ea84f8dd0da99bba9eb7bddd73e7a457d --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 08:39:17,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:39:17,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:39:17,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:39:17,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:39:17,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:39:17,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:39:17,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:39:17,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:39:17,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:39:17,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:39:17,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:39:17,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:39:17,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:39:17,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:39:17,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:39:17,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:39:17,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:39:17,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:39:17,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:39:17,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:39:17,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:39:17,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:39:17,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:39:17,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:39:17,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:39:17,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:39:17,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:39:17,918 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:39:17,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:39:17,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:39:17,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:39:17,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:39:17,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:39:17,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:39:17,922 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:39:17,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:39:17,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:39:17,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:39:17,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:39:17,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:39:17,925 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:39:17,950 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:39:17,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:39:17,951 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:39:17,952 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:39:17,952 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:39:17,953 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:39:17,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:39:17,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:39:17,954 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:39:17,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:39:17,955 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:39:17,955 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:39:17,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:39:17,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:39:17,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:39:17,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:39:17,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:39:17,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:39:17,957 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:39:17,957 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:39:17,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:39:17,957 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:39:17,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:39:17,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:39:17,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:39:17,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:39:17,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:39:17,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:39:17,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:39:17,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:39:17,959 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:39:17,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:39:17,959 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:39:17,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:39:17,960 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:39:17,960 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:39:17,960 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:39:17,960 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f8371a34a183593aa0efc399c0d4d9ea84f8dd0da99bba9eb7bddd73e7a457d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:39:18,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:39:18,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:39:18,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:39:18,281 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:39:18,281 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:39:18,283 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix015.opt.i [2023-08-30 08:39:19,494 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:39:19,777 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:39:19,778 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix015.opt.i [2023-08-30 08:39:19,807 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd6e16c3f/018f13ccf20b43ad95854b94dd9b2576/FLAGf564ad50a [2023-08-30 08:39:19,824 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd6e16c3f/018f13ccf20b43ad95854b94dd9b2576 [2023-08-30 08:39:19,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:39:19,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:39:19,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:39:19,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:39:19,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:39:19,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:39:19" (1/1) ... [2023-08-30 08:39:19,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a843577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:19, skipping insertion in model container [2023-08-30 08:39:19,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:39:19" (1/1) ... [2023-08-30 08:39:19,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:39:19,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:39:20,060 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/mix015.opt.i[944,957] [2023-08-30 08:39:20,269 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:39:20,281 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:39:20,292 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/mix015.opt.i[944,957] [2023-08-30 08:39:20,346 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:39:20,379 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:39:20,379 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:39:20,385 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:39:20,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:20 WrapperNode [2023-08-30 08:39:20,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:39:20,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:39:20,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:39:20,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:39:20,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:20" (1/1) ... [2023-08-30 08:39:20,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:20" (1/1) ... [2023-08-30 08:39:20,455 INFO L138 Inliner]: procedures = 176, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 154 [2023-08-30 08:39:20,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:39:20,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:39:20,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:39:20,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:39:20,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:20" (1/1) ... [2023-08-30 08:39:20,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:20" (1/1) ... [2023-08-30 08:39:20,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:20" (1/1) ... [2023-08-30 08:39:20,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:20" (1/1) ... [2023-08-30 08:39:20,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:20" (1/1) ... [2023-08-30 08:39:20,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:20" (1/1) ... [2023-08-30 08:39:20,498 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:20" (1/1) ... [2023-08-30 08:39:20,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:20" (1/1) ... [2023-08-30 08:39:20,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:39:20,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:39:20,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:39:20,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:39:20,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:20" (1/1) ... [2023-08-30 08:39:20,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:39:20,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:39:20,554 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 08:39:20,561 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 08:39:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:39:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:39:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:39:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:39:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:39:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 08:39:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 08:39:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 08:39:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 08:39:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 08:39:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 08:39:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:39:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:39:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:39:20,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:39:20,588 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 08:39:20,793 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:39:20,803 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:39:21,208 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:39:21,330 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:39:21,330 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:39:21,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:39:21 BoogieIcfgContainer [2023-08-30 08:39:21,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:39:21,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:39:21,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:39:21,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:39:21,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:39:19" (1/3) ... [2023-08-30 08:39:21,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@94d00c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:39:21, skipping insertion in model container [2023-08-30 08:39:21,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:39:20" (2/3) ... [2023-08-30 08:39:21,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@94d00c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:39:21, skipping insertion in model container [2023-08-30 08:39:21,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:39:21" (3/3) ... [2023-08-30 08:39:21,340 INFO L112 eAbstractionObserver]: Analyzing ICFG mix015.opt.i [2023-08-30 08:39:21,349 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:39:21,357 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:39:21,358 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 08:39:21,358 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:39:21,406 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 08:39:21,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 125 places, 117 transitions, 249 flow [2023-08-30 08:39:21,489 INFO L130 PetriNetUnfolder]: 2/114 cut-off events. [2023-08-30 08:39:21,489 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:39:21,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 2/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 76 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-08-30 08:39:21,495 INFO L82 GeneralOperation]: Start removeDead. Operand has 125 places, 117 transitions, 249 flow [2023-08-30 08:39:21,499 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 114 transitions, 237 flow [2023-08-30 08:39:21,503 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:39:21,512 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 114 transitions, 237 flow [2023-08-30 08:39:21,514 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 114 transitions, 237 flow [2023-08-30 08:39:21,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 114 transitions, 237 flow [2023-08-30 08:39:21,557 INFO L130 PetriNetUnfolder]: 2/114 cut-off events. [2023-08-30 08:39:21,558 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:39:21,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 2/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 76 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-08-30 08:39:21,562 INFO L119 LiptonReduction]: Number of co-enabled transitions 2480 [2023-08-30 08:39:25,164 INFO L134 LiptonReduction]: Checked pairs total: 8221 [2023-08-30 08:39:25,165 INFO L136 LiptonReduction]: Total number of compositions: 95 [2023-08-30 08:39:25,178 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:39:25,184 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;@61f57d2e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:39:25,185 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-30 08:39:25,188 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 08:39:25,189 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:39:25,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:39:25,189 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 08:39:25,190 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 08:39:25,194 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:39:25,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1501734031, now seen corresponding path program 1 times [2023-08-30 08:39:25,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:39:25,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84156522] [2023-08-30 08:39:25,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:39:25,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:39:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:39:25,423 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 08:39:25,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:39:25,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84156522] [2023-08-30 08:39:25,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84156522] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:39:25,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:39:25,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:39:25,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990360175] [2023-08-30 08:39:25,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:39:25,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:39:25,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:39:25,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:39:25,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:39:25,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 212 [2023-08-30 08:39:25,469 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 65 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 08:39:25,469 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:39:25,470 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 212 [2023-08-30 08:39:25,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:39:25,766 INFO L130 PetriNetUnfolder]: 1101/1731 cut-off events. [2023-08-30 08:39:25,766 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-30 08:39:25,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3488 conditions, 1731 events. 1101/1731 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 8206 event pairs, 369 based on Foata normal form. 0/1433 useless extension candidates. Maximal degree in co-relation 3477. Up to 1241 conditions per place. [2023-08-30 08:39:25,777 INFO L137 encePairwiseOnDemand]: 201/212 looper letters, 38 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2023-08-30 08:39:25,778 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 44 transitions, 187 flow [2023-08-30 08:39:25,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:39:25,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:39:25,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2023-08-30 08:39:25,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5314465408805031 [2023-08-30 08:39:25,790 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 338 transitions. [2023-08-30 08:39:25,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 338 transitions. [2023-08-30 08:39:25,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:39:25,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 338 transitions. [2023-08-30 08:39:25,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 08:39:25,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 212.0) internal successors, (848), 4 states have internal predecessors, (848), 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 08:39:25,801 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 212.0) internal successors, (848), 4 states have internal predecessors, (848), 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 08:39:25,802 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 65 flow. Second operand 3 states and 338 transitions. [2023-08-30 08:39:25,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 44 transitions, 187 flow [2023-08-30 08:39:25,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 44 transitions, 182 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 08:39:25,806 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 96 flow [2023-08-30 08:39:25,808 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=212, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2023-08-30 08:39:25,810 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 0 predicate places. [2023-08-30 08:39:25,811 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 96 flow [2023-08-30 08:39:25,811 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 08:39:25,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:39:25,811 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:39:25,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:39:25,812 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 08:39:25,812 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:39:25,813 INFO L85 PathProgramCache]: Analyzing trace with hash 2081107966, now seen corresponding path program 1 times [2023-08-30 08:39:25,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:39:25,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056158810] [2023-08-30 08:39:25,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:39:25,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:39:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:39:25,951 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 08:39:25,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:39:25,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056158810] [2023-08-30 08:39:25,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056158810] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:39:25,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:39:25,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:39:25,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956985624] [2023-08-30 08:39:25,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:39:25,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:39:25,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:39:25,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:39:25,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:39:25,959 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 212 [2023-08-30 08:39:25,960 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:39:25,960 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:39:25,960 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 212 [2023-08-30 08:39:25,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:39:26,213 INFO L130 PetriNetUnfolder]: 885/1383 cut-off events. [2023-08-30 08:39:26,213 INFO L131 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2023-08-30 08:39:26,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3320 conditions, 1383 events. 885/1383 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 6120 event pairs, 321 based on Foata normal form. 0/1253 useless extension candidates. Maximal degree in co-relation 3309. Up to 892 conditions per place. [2023-08-30 08:39:26,221 INFO L137 encePairwiseOnDemand]: 205/212 looper letters, 35 selfloop transitions, 4 changer transitions 0/41 dead transitions. [2023-08-30 08:39:26,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 41 transitions, 194 flow [2023-08-30 08:39:26,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:39:26,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:39:26,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 426 transitions. [2023-08-30 08:39:26,227 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5023584905660378 [2023-08-30 08:39:26,227 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 426 transitions. [2023-08-30 08:39:26,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 426 transitions. [2023-08-30 08:39:26,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:39:26,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 426 transitions. [2023-08-30 08:39:26,230 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 08:39:26,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 212.0) internal successors, (1060), 5 states have internal predecessors, (1060), 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 08:39:26,234 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 212.0) internal successors, (1060), 5 states have internal predecessors, (1060), 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 08:39:26,234 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 96 flow. Second operand 4 states and 426 transitions. [2023-08-30 08:39:26,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 41 transitions, 194 flow [2023-08-30 08:39:26,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 41 transitions, 190 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:39:26,237 INFO L231 Difference]: Finished difference. Result has 36 places, 27 transitions, 88 flow [2023-08-30 08:39:26,237 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=212, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=88, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2023-08-30 08:39:26,238 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -1 predicate places. [2023-08-30 08:39:26,238 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 88 flow [2023-08-30 08:39:26,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:39:26,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:39:26,239 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:39:26,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:39:26,239 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 08:39:26,240 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:39:26,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1464682949, now seen corresponding path program 1 times [2023-08-30 08:39:26,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:39:26,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101285575] [2023-08-30 08:39:26,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:39:26,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:39:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:39:26,318 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 08:39:26,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:39:26,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101285575] [2023-08-30 08:39:26,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101285575] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:39:26,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:39:26,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:39:26,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073383021] [2023-08-30 08:39:26,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:39:26,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:39:26,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:39:26,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:39:26,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:39:26,328 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 212 [2023-08-30 08:39:26,333 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:39:26,333 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:39:26,333 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 212 [2023-08-30 08:39:26,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:39:26,547 INFO L130 PetriNetUnfolder]: 720/1122 cut-off events. [2023-08-30 08:39:26,548 INFO L131 PetriNetUnfolder]: For 366/366 co-relation queries the response was YES. [2023-08-30 08:39:26,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2663 conditions, 1122 events. 720/1122 cut-off events. For 366/366 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4697 event pairs, 293 based on Foata normal form. 0/1100 useless extension candidates. Maximal degree in co-relation 2651. Up to 462 conditions per place. [2023-08-30 08:39:26,554 INFO L137 encePairwiseOnDemand]: 205/212 looper letters, 44 selfloop transitions, 7 changer transitions 3/56 dead transitions. [2023-08-30 08:39:26,554 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 56 transitions, 266 flow [2023-08-30 08:39:26,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:39:26,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:39:26,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 441 transitions. [2023-08-30 08:39:26,556 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5200471698113207 [2023-08-30 08:39:26,557 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 441 transitions. [2023-08-30 08:39:26,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 441 transitions. [2023-08-30 08:39:26,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:39:26,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 441 transitions. [2023-08-30 08:39:26,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 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 08:39:26,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 212.0) internal successors, (1060), 5 states have internal predecessors, (1060), 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 08:39:26,561 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 212.0) internal successors, (1060), 5 states have internal predecessors, (1060), 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 08:39:26,561 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 88 flow. Second operand 4 states and 441 transitions. [2023-08-30 08:39:26,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 56 transitions, 266 flow [2023-08-30 08:39:26,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 56 transitions, 261 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 08:39:26,564 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 109 flow [2023-08-30 08:39:26,564 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=212, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=109, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2023-08-30 08:39:26,565 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 1 predicate places. [2023-08-30 08:39:26,568 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 109 flow [2023-08-30 08:39:26,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:39:26,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:39:26,570 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:39:26,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:39:26,570 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 08:39:26,571 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:39:26,571 INFO L85 PathProgramCache]: Analyzing trace with hash -143127214, now seen corresponding path program 1 times [2023-08-30 08:39:26,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:39:26,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971895803] [2023-08-30 08:39:26,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:39:26,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:39:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:39:26,744 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 08:39:26,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:39:26,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971895803] [2023-08-30 08:39:26,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971895803] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:39:26,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:39:26,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:39:26,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612570600] [2023-08-30 08:39:26,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:39:26,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:39:26,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:39:26,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:39:26,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:39:26,757 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 212 [2023-08-30 08:39:26,760 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 109 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 08:39:26,760 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:39:26,761 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 212 [2023-08-30 08:39:26,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:39:26,983 INFO L130 PetriNetUnfolder]: 700/1086 cut-off events. [2023-08-30 08:39:26,983 INFO L131 PetriNetUnfolder]: For 768/768 co-relation queries the response was YES. [2023-08-30 08:39:26,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2882 conditions, 1086 events. 700/1086 cut-off events. For 768/768 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4555 event pairs, 293 based on Foata normal form. 12/1088 useless extension candidates. Maximal degree in co-relation 2869. Up to 462 conditions per place. [2023-08-30 08:39:26,988 INFO L137 encePairwiseOnDemand]: 205/212 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2023-08-30 08:39:26,988 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 50 transitions, 245 flow [2023-08-30 08:39:26,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:39:26,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:39:26,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 531 transitions. [2023-08-30 08:39:26,994 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5009433962264151 [2023-08-30 08:39:26,994 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 531 transitions. [2023-08-30 08:39:26,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 531 transitions. [2023-08-30 08:39:26,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:39:26,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 531 transitions. [2023-08-30 08:39:26,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.2) internal successors, (531), 5 states have internal predecessors, (531), 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 08:39:26,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 212.0) internal successors, (1272), 6 states have internal predecessors, (1272), 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 08:39:26,999 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 212.0) internal successors, (1272), 6 states have internal predecessors, (1272), 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 08:39:26,999 INFO L175 Difference]: Start difference. First operand has 38 places, 27 transitions, 109 flow. Second operand 5 states and 531 transitions. [2023-08-30 08:39:26,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 50 transitions, 245 flow [2023-08-30 08:39:27,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 50 transitions, 221 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-30 08:39:27,006 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-30 08:39:27,006 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=212, 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 08:39:27,007 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places. [2023-08-30 08:39:27,008 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-30 08:39:27,008 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 08:39:27,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-08-30 08:39:27,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-08-30 08:39:27,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-08-30 08:39:27,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-08-30 08:39:27,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-08-30 08:39:27,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-08-30 08:39:27,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-30 08:39:27,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-08-30 08:39:27,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-08-30 08:39:27,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-08-30 08:39:27,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-08-30 08:39:27,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-08-30 08:39:27,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-08-30 08:39:27,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-08-30 08:39:27,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-08-30 08:39:27,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:39:27,015 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-30 08:39:27,021 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:39:27,021 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:39:27,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:39:27 BasicIcfg [2023-08-30 08:39:27,029 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:39:27,029 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:39:27,029 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:39:27,029 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:39:27,030 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:39:21" (3/4) ... [2023-08-30 08:39:27,032 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:39:27,035 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 08:39:27,036 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 08:39:27,036 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 08:39:27,041 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-08-30 08:39:27,041 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-08-30 08:39:27,041 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 08:39:27,042 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:39:27,082 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:39:27,083 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:39:27,083 INFO L158 Benchmark]: Toolchain (without parser) took 7254.52ms. Allocated memory was 67.1MB in the beginning and 144.7MB in the end (delta: 77.6MB). Free memory was 43.9MB in the beginning and 95.4MB in the end (delta: -51.5MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2023-08-30 08:39:27,084 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory was 32.5MB in the beginning and 32.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:39:27,084 INFO L158 Benchmark]: CACSL2BoogieTranslator took 556.03ms. Allocated memory is still 67.1MB. Free memory was 43.7MB in the beginning and 35.1MB in the end (delta: 8.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 08:39:27,084 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.68ms. Allocated memory is still 67.1MB. Free memory was 35.1MB in the beginning and 32.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:39:27,084 INFO L158 Benchmark]: Boogie Preprocessor took 47.17ms. Allocated memory is still 67.1MB. Free memory was 32.2MB in the beginning and 46.0MB in the end (delta: -13.8MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2023-08-30 08:39:27,085 INFO L158 Benchmark]: RCFGBuilder took 829.48ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 46.0MB in the beginning and 57.4MB in the end (delta: -11.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-08-30 08:39:27,085 INFO L158 Benchmark]: TraceAbstraction took 5693.74ms. Allocated memory was 81.8MB in the beginning and 144.7MB in the end (delta: 62.9MB). Free memory was 56.7MB in the beginning and 98.5MB in the end (delta: -41.9MB). Peak memory consumption was 83.2MB. Max. memory is 16.1GB. [2023-08-30 08:39:27,085 INFO L158 Benchmark]: Witness Printer took 53.81ms. Allocated memory is still 144.7MB. Free memory was 98.5MB in the beginning and 95.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:39:27,087 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory was 32.5MB in the beginning and 32.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 556.03ms. Allocated memory is still 67.1MB. Free memory was 43.7MB in the beginning and 35.1MB in the end (delta: 8.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.68ms. Allocated memory is still 67.1MB. Free memory was 35.1MB in the beginning and 32.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.17ms. Allocated memory is still 67.1MB. Free memory was 32.2MB in the beginning and 46.0MB in the end (delta: -13.8MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * RCFGBuilder took 829.48ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 46.0MB in the beginning and 57.4MB in the end (delta: -11.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5693.74ms. Allocated memory was 81.8MB in the beginning and 144.7MB in the end (delta: 62.9MB). Free memory was 56.7MB in the beginning and 98.5MB in the end (delta: -41.9MB). Peak memory consumption was 83.2MB. Max. memory is 16.1GB. * Witness Printer took 53.81ms. Allocated memory is still 144.7MB. Free memory was 98.5MB in the beginning and 95.4MB 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: 3.7s, 122 PlacesBefore, 37 PlacesAfterwards, 114 TransitionsBefore, 28 TransitionsAfterwards, 2480 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 95 TotalNumberOfCompositions, 8221 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3282, independent: 3011, independent conditional: 0, independent unconditional: 3011, dependent: 271, dependent conditional: 0, dependent unconditional: 271, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1347, independent: 1311, independent conditional: 0, independent unconditional: 1311, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3282, independent: 1700, independent conditional: 0, independent unconditional: 1700, dependent: 235, dependent conditional: 0, dependent unconditional: 235, unknown: 1347, unknown conditional: 0, unknown unconditional: 1347] , Statistics on independence cache: Total cache size (in pairs): 142, Positive cache size: 126, Positive conditional cache size: 0, Positive unconditional cache size: 126, 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: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 793]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 793]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: 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, 150 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: 5.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 119 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 246 IncrementalHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 6 mSDtfsCounter, 246 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=109occurred 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, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 126 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 08:39:27,117 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