./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix042.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix042.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 94656be5559ee6994f8d95e82c06571dfbe5b53833c4e842ade3fa022ec89a57 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 05:21:11,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:21:11,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:21:11,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:21:11,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:21:11,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:21:11,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:21:11,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:21:11,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:21:11,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:21:11,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:21:11,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:21:11,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:21:11,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:21:11,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:21:11,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:21:11,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:21:11,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:21:11,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:21:11,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:21:11,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:21:11,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:21:11,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:21:11,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:21:11,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:21:11,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:21:11,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:21:11,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:21:11,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:21:11,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:21:11,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:21:11,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:21:11,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:21:11,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:21:11,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:21:11,944 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:21:11,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:21:11,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:21:11,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:21:11,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:21:11,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:21:11,947 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:21:11,975 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:21:11,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:21:11,976 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:21:11,976 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:21:11,977 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:21:11,977 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:21:11,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:21:11,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:21:11,978 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:21:11,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:21:11,979 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:21:11,979 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:21:11,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:21:11,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:21:11,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:21:11,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:21:11,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:21:11,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:21:11,980 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:21:11,981 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:21:11,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:21:11,981 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:21:11,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:21:11,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:21:11,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:21:11,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:21:11,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:21:11,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:21:11,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:21:11,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:21:11,982 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:21:11,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:21:11,983 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:21:11,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:21:11,983 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:21:11,983 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:21:11,983 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:21:11,984 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94656be5559ee6994f8d95e82c06571dfbe5b53833c4e842ade3fa022ec89a57 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:21:12,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:21:12,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:21:12,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:21:12,255 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:21:12,256 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:21:12,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix042.opt.i [2023-09-01 05:21:13,373 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:21:13,662 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:21:13,662 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix042.opt.i [2023-09-01 05:21:13,675 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bd425398/f7179d2c575641b9bc31e6317119a2cf/FLAG8e7f43234 [2023-09-01 05:21:13,691 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bd425398/f7179d2c575641b9bc31e6317119a2cf [2023-09-01 05:21:13,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:21:13,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:21:13,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:21:13,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:21:13,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:21:13,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:21:13" (1/1) ... [2023-09-01 05:21:13,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b073cdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:21:13, skipping insertion in model container [2023-09-01 05:21:13,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:21:13" (1/1) ... [2023-09-01 05:21:13,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:21:13,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:21:13,911 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/mix042.opt.i[944,957] [2023-09-01 05:21:14,093 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:21:14,105 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:21:14,112 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/mix042.opt.i[944,957] [2023-09-01 05:21:14,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:21:14,188 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:21:14,188 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:21:14,193 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:21:14,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:21:14 WrapperNode [2023-09-01 05:21:14,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:21:14,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:21:14,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:21:14,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:21:14,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:21:14" (1/1) ... [2023-09-01 05:21:14,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:21:14" (1/1) ... [2023-09-01 05:21:14,252 INFO L138 Inliner]: procedures = 176, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 155 [2023-09-01 05:21:14,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:21:14,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:21:14,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:21:14,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:21:14,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:21:14" (1/1) ... [2023-09-01 05:21:14,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:21:14" (1/1) ... [2023-09-01 05:21:14,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:21:14" (1/1) ... [2023-09-01 05:21:14,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:21:14" (1/1) ... [2023-09-01 05:21:14,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:21:14" (1/1) ... [2023-09-01 05:21:14,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:21:14" (1/1) ... [2023-09-01 05:21:14,288 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:21:14" (1/1) ... [2023-09-01 05:21:14,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:21:14" (1/1) ... [2023-09-01 05:21:14,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:21:14,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:21:14,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:21:14,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:21:14,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:21:14" (1/1) ... [2023-09-01 05:21:14,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:21:14,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:21:14,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 05:21:14,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 05:21:14,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:21:14,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:21:14,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:21:14,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:21:14,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:21:14,386 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:21:14,387 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:21:14,387 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:21:14,387 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:21:14,387 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-09-01 05:21:14,387 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-09-01 05:21:14,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:21:14,387 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:21:14,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:21:14,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:21:14,389 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 05:21:14,562 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:21:14,564 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:21:14,831 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:21:14,939 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:21:14,940 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:21:14,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:21:14 BoogieIcfgContainer [2023-09-01 05:21:14,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:21:14,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:21:14,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:21:14,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:21:14,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:21:13" (1/3) ... [2023-09-01 05:21:14,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d24741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:21:14, skipping insertion in model container [2023-09-01 05:21:14,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:21:14" (2/3) ... [2023-09-01 05:21:14,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d24741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:21:14, skipping insertion in model container [2023-09-01 05:21:14,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:21:14" (3/3) ... [2023-09-01 05:21:14,951 INFO L112 eAbstractionObserver]: Analyzing ICFG mix042.opt.i [2023-09-01 05:21:14,957 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:21:14,966 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:21:14,966 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-09-01 05:21:14,966 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:21:15,037 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:21:15,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 115 transitions, 245 flow [2023-09-01 05:21:15,131 INFO L130 PetriNetUnfolder]: 2/112 cut-off events. [2023-09-01 05:21:15,131 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:21:15,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 112 events. 2/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 71 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-09-01 05:21:15,137 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 115 transitions, 245 flow [2023-09-01 05:21:15,141 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 112 transitions, 233 flow [2023-09-01 05:21:15,145 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:21:15,162 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 112 transitions, 233 flow [2023-09-01 05:21:15,165 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 112 transitions, 233 flow [2023-09-01 05:21:15,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 112 transitions, 233 flow [2023-09-01 05:21:15,182 INFO L130 PetriNetUnfolder]: 2/112 cut-off events. [2023-09-01 05:21:15,182 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:21:15,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 112 events. 2/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 71 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-09-01 05:21:15,186 INFO L119 LiptonReduction]: Number of co-enabled transitions 2436 [2023-09-01 05:21:18,590 INFO L134 LiptonReduction]: Checked pairs total: 8673 [2023-09-01 05:21:18,590 INFO L136 LiptonReduction]: Total number of compositions: 91 [2023-09-01 05:21:18,599 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:21:18,619 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;@1825c4a3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:21:18,620 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-09-01 05:21:18,622 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-09-01 05:21:18,622 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:21:18,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:21:18,622 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 05:21:18,623 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:21:18,626 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:21:18,626 INFO L85 PathProgramCache]: Analyzing trace with hash 473418925, now seen corresponding path program 1 times [2023-09-01 05:21:18,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:21:18,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199945804] [2023-09-01 05:21:18,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:21:18,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:21:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:21:18,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:21:18,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:21:18,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199945804] [2023-09-01 05:21:18,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199945804] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:21:18,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:21:18,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:21:18,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494198046] [2023-09-01 05:21:18,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:21:18,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:21:18,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:21:18,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:21:18,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:21:18,816 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 206 [2023-09-01 05:21:18,819 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:18,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:21:18,820 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 206 [2023-09-01 05:21:18,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:21:19,066 INFO L130 PetriNetUnfolder]: 1055/1698 cut-off events. [2023-09-01 05:21:19,066 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-09-01 05:21:19,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3425 conditions, 1698 events. 1055/1698 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 8838 event pairs, 455 based on Foata normal form. 114/1315 useless extension candidates. Maximal degree in co-relation 3414. Up to 1533 conditions per place. [2023-09-01 05:21:19,077 INFO L137 encePairwiseOnDemand]: 194/206 looper letters, 36 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2023-09-01 05:21:19,077 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 43 transitions, 181 flow [2023-09-01 05:21:19,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:21:19,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:21:19,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 331 transitions. [2023-09-01 05:21:19,089 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5355987055016181 [2023-09-01 05:21:19,090 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 331 transitions. [2023-09-01 05:21:19,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 331 transitions. [2023-09-01 05:21:19,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:21:19,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 331 transitions. [2023-09-01 05:21:19,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:19,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 206.0) internal successors, (824), 4 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:19,100 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 206.0) internal successors, (824), 4 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:19,102 INFO L175 Difference]: Start difference. First operand has 39 places, 30 transitions, 69 flow. Second operand 3 states and 331 transitions. [2023-09-01 05:21:19,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 43 transitions, 181 flow [2023-09-01 05:21:19,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 43 transitions, 176 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 05:21:19,105 INFO L231 Difference]: Finished difference. Result has 39 places, 32 transitions, 102 flow [2023-09-01 05:21:19,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2023-09-01 05:21:19,108 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 0 predicate places. [2023-09-01 05:21:19,108 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 102 flow [2023-09-01 05:21:19,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:19,109 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:21:19,109 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:21:19,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:21:19,109 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:21:19,110 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:21:19,110 INFO L85 PathProgramCache]: Analyzing trace with hash 336114678, now seen corresponding path program 1 times [2023-09-01 05:21:19,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:21:19,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264126125] [2023-09-01 05:21:19,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:21:19,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:21:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:21:19,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:21:19,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:21:19,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264126125] [2023-09-01 05:21:19,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264126125] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:21:19,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:21:19,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:21:19,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010873048] [2023-09-01 05:21:19,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:21:19,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:21:19,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:21:19,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:21:19,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:21:19,213 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 206 [2023-09-01 05:21:19,214 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 96.25) internal successors, (385), 4 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:19,214 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:21:19,214 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 206 [2023-09-01 05:21:19,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:21:19,372 INFO L130 PetriNetUnfolder]: 739/1198 cut-off events. [2023-09-01 05:21:19,372 INFO L131 PetriNetUnfolder]: For 119/119 co-relation queries the response was YES. [2023-09-01 05:21:19,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2941 conditions, 1198 events. 739/1198 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5747 event pairs, 263 based on Foata normal form. 0/1029 useless extension candidates. Maximal degree in co-relation 2930. Up to 1032 conditions per place. [2023-09-01 05:21:19,377 INFO L137 encePairwiseOnDemand]: 199/206 looper letters, 33 selfloop transitions, 4 changer transitions 0/40 dead transitions. [2023-09-01 05:21:19,377 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 40 transitions, 190 flow [2023-09-01 05:21:19,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:21:19,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:21:19,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 416 transitions. [2023-09-01 05:21:19,380 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5048543689320388 [2023-09-01 05:21:19,380 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 416 transitions. [2023-09-01 05:21:19,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 416 transitions. [2023-09-01 05:21:19,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:21:19,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 416 transitions. [2023-09-01 05:21:19,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:19,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:19,384 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:19,384 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 102 flow. Second operand 4 states and 416 transitions. [2023-09-01 05:21:19,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 40 transitions, 190 flow [2023-09-01 05:21:19,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 40 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:21:19,385 INFO L231 Difference]: Finished difference. Result has 38 places, 29 transitions, 94 flow [2023-09-01 05:21:19,385 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=38, PETRI_TRANSITIONS=29} [2023-09-01 05:21:19,386 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -1 predicate places. [2023-09-01 05:21:19,386 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 94 flow [2023-09-01 05:21:19,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.25) internal successors, (385), 4 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:19,386 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:21:19,387 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:21:19,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:21:19,387 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:21:19,387 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:21:19,387 INFO L85 PathProgramCache]: Analyzing trace with hash -463507157, now seen corresponding path program 1 times [2023-09-01 05:21:19,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:21:19,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248743894] [2023-09-01 05:21:19,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:21:19,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:21:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:21:19,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:21:19,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:21:19,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248743894] [2023-09-01 05:21:19,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248743894] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:21:19,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:21:19,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:21:19,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269573840] [2023-09-01 05:21:19,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:21:19,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:21:19,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:21:19,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:21:19,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:21:19,487 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 206 [2023-09-01 05:21:19,487 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 96.25) internal successors, (385), 4 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:19,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:21:19,487 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 206 [2023-09-01 05:21:19,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:21:19,598 INFO L130 PetriNetUnfolder]: 296/521 cut-off events. [2023-09-01 05:21:19,598 INFO L131 PetriNetUnfolder]: For 173/173 co-relation queries the response was YES. [2023-09-01 05:21:19,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1281 conditions, 521 events. 296/521 cut-off events. For 173/173 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2103 event pairs, 101 based on Foata normal form. 26/526 useless extension candidates. Maximal degree in co-relation 1269. Up to 180 conditions per place. [2023-09-01 05:21:19,601 INFO L137 encePairwiseOnDemand]: 198/206 looper letters, 39 selfloop transitions, 7 changer transitions 3/52 dead transitions. [2023-09-01 05:21:19,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 52 transitions, 250 flow [2023-09-01 05:21:19,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:21:19,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:21:19,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 429 transitions. [2023-09-01 05:21:19,602 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5206310679611651 [2023-09-01 05:21:19,602 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 429 transitions. [2023-09-01 05:21:19,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 429 transitions. [2023-09-01 05:21:19,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:21:19,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 429 transitions. [2023-09-01 05:21:19,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:19,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:19,624 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:19,624 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 94 flow. Second operand 4 states and 429 transitions. [2023-09-01 05:21:19,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 52 transitions, 250 flow [2023-09-01 05:21:19,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 52 transitions, 245 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:21:19,626 INFO L231 Difference]: Finished difference. Result has 40 places, 29 transitions, 117 flow [2023-09-01 05:21:19,626 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=117, PETRI_PLACES=40, PETRI_TRANSITIONS=29} [2023-09-01 05:21:19,626 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2023-09-01 05:21:19,627 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 29 transitions, 117 flow [2023-09-01 05:21:19,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.25) internal successors, (385), 4 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:19,627 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:21:19,627 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:21:19,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:21:19,627 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:21:19,628 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:21:19,628 INFO L85 PathProgramCache]: Analyzing trace with hash -561609908, now seen corresponding path program 1 times [2023-09-01 05:21:19,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:21:19,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210429279] [2023-09-01 05:21:19,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:21:19,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:21:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:21:19,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:21:19,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:21:19,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210429279] [2023-09-01 05:21:19,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210429279] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:21:19,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:21:19,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 05:21:19,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667127369] [2023-09-01 05:21:19,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:21:19,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:21:19,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:21:19,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:21:19,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:21:19,779 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 206 [2023-09-01 05:21:19,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 29 transitions, 117 flow. Second operand has 5 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:19,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:21:19,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 206 [2023-09-01 05:21:19,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:21:19,863 INFO L130 PetriNetUnfolder]: 240/405 cut-off events. [2023-09-01 05:21:19,863 INFO L131 PetriNetUnfolder]: For 342/342 co-relation queries the response was YES. [2023-09-01 05:21:19,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1145 conditions, 405 events. 240/405 cut-off events. For 342/342 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1571 event pairs, 85 based on Foata normal form. 15/417 useless extension candidates. Maximal degree in co-relation 1132. Up to 176 conditions per place. [2023-09-01 05:21:19,865 INFO L137 encePairwiseOnDemand]: 198/206 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2023-09-01 05:21:19,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 42 transitions, 211 flow [2023-09-01 05:21:19,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 05:21:19,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 05:21:19,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 513 transitions. [2023-09-01 05:21:19,866 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4980582524271845 [2023-09-01 05:21:19,866 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 513 transitions. [2023-09-01 05:21:19,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 513 transitions. [2023-09-01 05:21:19,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:21:19,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 513 transitions. [2023-09-01 05:21:19,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 102.6) internal successors, (513), 5 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:19,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:19,870 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:19,870 INFO L175 Difference]: Start difference. First operand has 40 places, 29 transitions, 117 flow. Second operand 5 states and 513 transitions. [2023-09-01 05:21:19,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 42 transitions, 211 flow [2023-09-01 05:21:19,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 42 transitions, 187 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-09-01 05:21:19,872 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2023-09-01 05:21:19,872 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2023-09-01 05:21:19,872 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -6 predicate places. [2023-09-01 05:21:19,872 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2023-09-01 05:21:19,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:19,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-09-01 05:21:19,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-09-01 05:21:19,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-09-01 05:21:19,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-09-01 05:21:19,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-09-01 05:21:19,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-09-01 05:21:19,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-09-01 05:21:19,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-09-01 05:21:19,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-09-01 05:21:19,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-09-01 05:21:19,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-09-01 05:21:19,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-09-01 05:21:19,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-09-01 05:21:19,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-09-01 05:21:19,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-09-01 05:21:19,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 05:21:19,877 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-09-01 05:21:19,881 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:21:19,881 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:21:19,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:21:19 BasicIcfg [2023-09-01 05:21:19,883 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:21:19,883 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:21:19,883 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:21:19,883 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:21:19,884 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:21:14" (3/4) ... [2023-09-01 05:21:19,885 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:21:19,888 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:21:19,888 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:21:19,889 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-09-01 05:21:19,892 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2023-09-01 05:21:19,892 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-09-01 05:21:19,892 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-09-01 05:21:19,892 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:21:19,916 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:21:19,916 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:21:19,916 INFO L158 Benchmark]: Toolchain (without parser) took 6223.09ms. Allocated memory was 60.8MB in the beginning and 130.0MB in the end (delta: 69.2MB). Free memory was 37.1MB in the beginning and 42.3MB in the end (delta: -5.1MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2023-09-01 05:21:19,917 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 50.3MB. Free memory was 28.6MB in the beginning and 28.6MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:21:19,917 INFO L158 Benchmark]: CACSL2BoogieTranslator took 499.78ms. Allocated memory is still 60.8MB. Free memory was 36.9MB in the beginning and 29.3MB in the end (delta: 7.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2023-09-01 05:21:19,917 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.03ms. Allocated memory is still 60.8MB. Free memory was 29.1MB in the beginning and 26.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:21:19,917 INFO L158 Benchmark]: Boogie Preprocessor took 45.24ms. Allocated memory is still 60.8MB. Free memory was 26.6MB in the beginning and 24.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:21:19,917 INFO L158 Benchmark]: RCFGBuilder took 645.16ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 24.6MB in the beginning and 34.1MB in the end (delta: -9.5MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2023-09-01 05:21:19,918 INFO L158 Benchmark]: TraceAbstraction took 4937.97ms. Allocated memory was 73.4MB in the beginning and 130.0MB in the end (delta: 56.6MB). Free memory was 33.3MB in the beginning and 45.4MB in the end (delta: -12.1MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. [2023-09-01 05:21:19,918 INFO L158 Benchmark]: Witness Printer took 32.76ms. Allocated memory is still 130.0MB. Free memory was 45.4MB in the beginning and 42.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:21:19,919 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 50.3MB. Free memory was 28.6MB in the beginning and 28.6MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 499.78ms. Allocated memory is still 60.8MB. Free memory was 36.9MB in the beginning and 29.3MB in the end (delta: 7.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.03ms. Allocated memory is still 60.8MB. Free memory was 29.1MB in the beginning and 26.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.24ms. Allocated memory is still 60.8MB. Free memory was 26.6MB in the beginning and 24.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 645.16ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 24.6MB in the beginning and 34.1MB in the end (delta: -9.5MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4937.97ms. Allocated memory was 73.4MB in the beginning and 130.0MB in the end (delta: 56.6MB). Free memory was 33.3MB in the beginning and 45.4MB in the end (delta: -12.1MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. * Witness Printer took 32.76ms. Allocated memory is still 130.0MB. Free memory was 45.4MB in the beginning and 42.3MB in the end (delta: 3.1MB). 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: 3.4s, 120 PlacesBefore, 39 PlacesAfterwards, 112 TransitionsBefore, 30 TransitionsAfterwards, 2436 CoEnabledTransitionPairs, 7 FixpointIterations, 40 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 91 TotalNumberOfCompositions, 8673 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3470, independent: 3188, independent conditional: 0, independent unconditional: 3188, dependent: 282, dependent conditional: 0, dependent unconditional: 282, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1293, independent: 1245, independent conditional: 0, independent unconditional: 1245, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3470, independent: 1943, independent conditional: 0, independent unconditional: 1943, dependent: 234, dependent conditional: 0, dependent unconditional: 234, unknown: 1293, unknown conditional: 0, unknown unconditional: 1293] , Statistics on independence cache: Total cache size (in pairs): 157, Positive cache size: 137, Positive conditional cache size: 0, Positive unconditional cache size: 137, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 755]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 755]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: 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, 148 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: 4.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 128 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 107 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 245 IncrementalHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 10 mSDtfsCounter, 245 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=117occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 123 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 05:21:19,938 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