./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.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/mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.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 ea86164637dd5d5bd9745ca8d3f5dc708b98bc3f75b645830d494ea6e5cae6ff --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 08:41:13,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:41:13,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:41:13,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:41:13,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:41:13,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:41:13,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:41:13,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:41:13,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:41:13,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:41:13,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:41:13,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:41:13,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:41:13,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:41:13,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:41:13,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:41:13,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:41:13,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:41:13,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:41:13,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:41:13,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:41:13,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:41:13,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:41:13,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:41:13,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:41:13,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:41:13,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:41:13,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:41:13,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:41:13,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:41:13,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:41:13,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:41:13,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:41:13,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:41:13,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:41:13,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:41:13,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:41:13,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:41:13,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:41:13,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:41:13,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:41:14,001 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:41:14,034 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:41:14,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:41:14,035 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:41:14,035 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:41:14,036 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:41:14,036 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:41:14,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:41:14,037 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:41:14,037 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:41:14,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:41:14,038 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:41:14,039 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:41:14,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:41:14,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:41:14,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:41:14,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:41:14,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:41:14,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:41:14,040 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:41:14,040 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:41:14,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:41:14,041 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:41:14,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:41:14,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:41:14,041 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:41:14,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:41:14,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:41:14,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:41:14,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:41:14,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:41:14,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:41:14,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:41:14,043 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:41:14,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:41:14,044 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:41:14,044 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:41:14,044 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:41:14,044 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea86164637dd5d5bd9745ca8d3f5dc708b98bc3f75b645830d494ea6e5cae6ff Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:41:14,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:41:14,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:41:14,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:41:14,363 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:41:14,363 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:41:14,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2023-08-30 08:41:15,433 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:41:15,724 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:41:15,725 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2023-08-30 08:41:15,743 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e8e0865a/643aa0d5787945c3bb161d73db9a2a25/FLAGa9aea4edc [2023-08-30 08:41:15,754 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e8e0865a/643aa0d5787945c3bb161d73db9a2a25 [2023-08-30 08:41:15,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:41:15,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:41:15,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:41:15,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:41:15,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:41:15,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:41:15" (1/1) ... [2023-08-30 08:41:15,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dda331c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:41:15, skipping insertion in model container [2023-08-30 08:41:15,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:41:15" (1/1) ... [2023-08-30 08:41:15,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:41:15,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:41:15,941 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/mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i[996,1009] [2023-08-30 08:41:16,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:41:16,177 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:41:16,190 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/mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i[996,1009] [2023-08-30 08:41:16,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:41:16,283 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:41:16,283 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:41:16,290 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:41:16,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:41:16 WrapperNode [2023-08-30 08:41:16,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:41:16,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:41:16,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:41:16,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:41:16,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:41:16" (1/1) ... [2023-08-30 08:41:16,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:41:16" (1/1) ... [2023-08-30 08:41:16,363 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 131 [2023-08-30 08:41:16,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:41:16,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:41:16,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:41:16,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:41:16,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:41:16" (1/1) ... [2023-08-30 08:41:16,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:41:16" (1/1) ... [2023-08-30 08:41:16,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:41:16" (1/1) ... [2023-08-30 08:41:16,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:41:16" (1/1) ... [2023-08-30 08:41:16,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:41:16" (1/1) ... [2023-08-30 08:41:16,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:41:16" (1/1) ... [2023-08-30 08:41:16,411 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:41:16" (1/1) ... [2023-08-30 08:41:16,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:41:16" (1/1) ... [2023-08-30 08:41:16,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:41:16,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:41:16,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:41:16,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:41:16,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:41:16" (1/1) ... [2023-08-30 08:41:16,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:41:16,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:41:16,455 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 08:41:16,482 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 08:41:16,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:41:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:41:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:41:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:41:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:41:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 08:41:16,496 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 08:41:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 08:41:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 08:41:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 08:41:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 08:41:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:41:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:41:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:41:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:41:16,499 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 08:41:16,707 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:41:16,709 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:41:17,033 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:41:17,160 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:41:17,160 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:41:17,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:41:17 BoogieIcfgContainer [2023-08-30 08:41:17,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:41:17,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:41:17,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:41:17,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:41:17,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:41:15" (1/3) ... [2023-08-30 08:41:17,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b646ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:41:17, skipping insertion in model container [2023-08-30 08:41:17,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:41:16" (2/3) ... [2023-08-30 08:41:17,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b646ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:41:17, skipping insertion in model container [2023-08-30 08:41:17,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:41:17" (3/3) ... [2023-08-30 08:41:17,172 INFO L112 eAbstractionObserver]: Analyzing ICFG mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2023-08-30 08:41:17,179 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:41:17,187 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:41:17,187 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 08:41:17,187 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:41:17,257 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 08:41:17,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 114 transitions, 243 flow [2023-08-30 08:41:17,331 INFO L130 PetriNetUnfolder]: 2/111 cut-off events. [2023-08-30 08:41:17,331 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:41:17,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 111 events. 2/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-08-30 08:41:17,336 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 114 transitions, 243 flow [2023-08-30 08:41:17,340 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 111 transitions, 231 flow [2023-08-30 08:41:17,343 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:41:17,350 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 111 transitions, 231 flow [2023-08-30 08:41:17,354 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 111 transitions, 231 flow [2023-08-30 08:41:17,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 111 transitions, 231 flow [2023-08-30 08:41:17,388 INFO L130 PetriNetUnfolder]: 2/111 cut-off events. [2023-08-30 08:41:17,388 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:41:17,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 111 events. 2/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-08-30 08:41:17,391 INFO L119 LiptonReduction]: Number of co-enabled transitions 2468 [2023-08-30 08:41:20,781 INFO L134 LiptonReduction]: Checked pairs total: 8682 [2023-08-30 08:41:20,782 INFO L136 LiptonReduction]: Total number of compositions: 90 [2023-08-30 08:41:20,803 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:41:20,809 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;@5478e913, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:41:20,810 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-30 08:41:20,818 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 08:41:20,818 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:41:20,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:41:20,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 08:41:20,820 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 08:41:20,826 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:41:20,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1940016303, now seen corresponding path program 1 times [2023-08-30 08:41:20,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:41:20,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723366959] [2023-08-30 08:41:20,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:41:20,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:41:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:41:21,092 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 08:41:21,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:41:21,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723366959] [2023-08-30 08:41:21,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723366959] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:41:21,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:41:21,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:41:21,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168261610] [2023-08-30 08:41:21,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:41:21,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:41:21,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:41:21,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:41:21,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:41:21,134 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 204 [2023-08-30 08:41:21,136 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 08:41:21,137 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:41:21,137 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 204 [2023-08-30 08:41:21,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:41:21,557 INFO L130 PetriNetUnfolder]: 1689/2598 cut-off events. [2023-08-30 08:41:21,558 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-08-30 08:41:21,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5219 conditions, 2598 events. 1689/2598 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 13212 event pairs, 557 based on Foata normal form. 138/2154 useless extension candidates. Maximal degree in co-relation 5208. Up to 1883 conditions per place. [2023-08-30 08:41:21,579 INFO L137 encePairwiseOnDemand]: 193/204 looper letters, 42 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2023-08-30 08:41:21,580 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 49 transitions, 205 flow [2023-08-30 08:41:21,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:41:21,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:41:21,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 330 transitions. [2023-08-30 08:41:21,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5392156862745098 [2023-08-30 08:41:21,597 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 330 transitions. [2023-08-30 08:41:21,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 330 transitions. [2023-08-30 08:41:21,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:41:21,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 330 transitions. [2023-08-30 08:41:21,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:21,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 204.0) internal successors, (816), 4 states have internal predecessors, (816), 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 08:41:21,613 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 204.0) internal successors, (816), 4 states have internal predecessors, (816), 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 08:41:21,615 INFO L175 Difference]: Start difference. First operand has 40 places, 31 transitions, 71 flow. Second operand 3 states and 330 transitions. [2023-08-30 08:41:21,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 49 transitions, 205 flow [2023-08-30 08:41:21,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 49 transitions, 200 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 08:41:21,621 INFO L231 Difference]: Finished difference. Result has 40 places, 33 transitions, 102 flow [2023-08-30 08:41:21,623 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=40, PETRI_TRANSITIONS=33} [2023-08-30 08:41:21,627 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2023-08-30 08:41:21,628 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 33 transitions, 102 flow [2023-08-30 08:41:21,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 08:41:21,632 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:41:21,632 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:41:21,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:41:21,633 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 08:41:21,634 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:41:21,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1609078554, now seen corresponding path program 1 times [2023-08-30 08:41:21,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:41:21,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93118705] [2023-08-30 08:41:21,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:41:21,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:41:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:41:21,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:41:21,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:41:21,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93118705] [2023-08-30 08:41:21,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93118705] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:41:21,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:41:21,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:41:21,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674482788] [2023-08-30 08:41:21,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:41:21,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:41:21,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:41:21,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:41:21,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:41:21,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 204 [2023-08-30 08:41:21,777 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 94.5) internal successors, (378), 4 states have internal predecessors, (378), 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 08:41:21,777 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:41:21,777 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 204 [2023-08-30 08:41:21,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:41:22,119 INFO L130 PetriNetUnfolder]: 1351/2064 cut-off events. [2023-08-30 08:41:22,120 INFO L131 PetriNetUnfolder]: For 153/153 co-relation queries the response was YES. [2023-08-30 08:41:22,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4927 conditions, 2064 events. 1351/2064 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 10105 event pairs, 485 based on Foata normal form. 0/1764 useless extension candidates. Maximal degree in co-relation 4916. Up to 1348 conditions per place. [2023-08-30 08:41:22,133 INFO L137 encePairwiseOnDemand]: 197/204 looper letters, 39 selfloop transitions, 4 changer transitions 0/46 dead transitions. [2023-08-30 08:41:22,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 46 transitions, 212 flow [2023-08-30 08:41:22,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:41:22,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:41:22,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 414 transitions. [2023-08-30 08:41:22,136 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5073529411764706 [2023-08-30 08:41:22,136 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 414 transitions. [2023-08-30 08:41:22,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 414 transitions. [2023-08-30 08:41:22,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:41:22,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 414 transitions. [2023-08-30 08:41:22,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 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 08:41:22,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 204.0) internal successors, (1020), 5 states have internal predecessors, (1020), 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 08:41:22,143 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 204.0) internal successors, (1020), 5 states have internal predecessors, (1020), 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 08:41:22,143 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 102 flow. Second operand 4 states and 414 transitions. [2023-08-30 08:41:22,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 46 transitions, 212 flow [2023-08-30 08:41:22,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 46 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:41:22,146 INFO L231 Difference]: Finished difference. Result has 39 places, 30 transitions, 94 flow [2023-08-30 08:41:22,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2023-08-30 08:41:22,147 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2023-08-30 08:41:22,148 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 30 transitions, 94 flow [2023-08-30 08:41:22,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.5) internal successors, (378), 4 states have internal predecessors, (378), 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 08:41:22,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:41:22,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:41:22,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:41:22,149 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 08:41:22,150 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:41:22,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1609078553, now seen corresponding path program 1 times [2023-08-30 08:41:22,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:41:22,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792990600] [2023-08-30 08:41:22,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:41:22,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:41:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:41:22,256 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 08:41:22,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:41:22,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792990600] [2023-08-30 08:41:22,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792990600] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:41:22,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:41:22,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:41:22,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925324172] [2023-08-30 08:41:22,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:41:22,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:41:22,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:41:22,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:41:22,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:41:22,265 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 204 [2023-08-30 08:41:22,266 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 94.5) internal successors, (378), 4 states have internal predecessors, (378), 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 08:41:22,266 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:41:22,266 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 204 [2023-08-30 08:41:22,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:41:22,539 INFO L130 PetriNetUnfolder]: 1094/1665 cut-off events. [2023-08-30 08:41:22,539 INFO L131 PetriNetUnfolder]: For 518/518 co-relation queries the response was YES. [2023-08-30 08:41:22,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3930 conditions, 1665 events. 1094/1665 cut-off events. For 518/518 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 7912 event pairs, 443 based on Foata normal form. 0/1548 useless extension candidates. Maximal degree in co-relation 3918. Up to 684 conditions per place. [2023-08-30 08:41:22,548 INFO L137 encePairwiseOnDemand]: 197/204 looper letters, 50 selfloop transitions, 7 changer transitions 3/63 dead transitions. [2023-08-30 08:41:22,548 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 63 transitions, 292 flow [2023-08-30 08:41:22,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:41:22,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:41:22,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 431 transitions. [2023-08-30 08:41:22,550 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5281862745098039 [2023-08-30 08:41:22,550 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 431 transitions. [2023-08-30 08:41:22,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 431 transitions. [2023-08-30 08:41:22,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:41:22,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 431 transitions. [2023-08-30 08:41:22,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 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 08:41:22,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 204.0) internal successors, (1020), 5 states have internal predecessors, (1020), 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 08:41:22,554 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 204.0) internal successors, (1020), 5 states have internal predecessors, (1020), 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 08:41:22,554 INFO L175 Difference]: Start difference. First operand has 39 places, 30 transitions, 94 flow. Second operand 4 states and 431 transitions. [2023-08-30 08:41:22,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 63 transitions, 292 flow [2023-08-30 08:41:22,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 63 transitions, 287 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 08:41:22,557 INFO L231 Difference]: Finished difference. Result has 41 places, 30 transitions, 115 flow [2023-08-30 08:41:22,557 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=115, PETRI_PLACES=41, PETRI_TRANSITIONS=30} [2023-08-30 08:41:22,558 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2023-08-30 08:41:22,558 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 115 flow [2023-08-30 08:41:22,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.5) internal successors, (378), 4 states have internal predecessors, (378), 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 08:41:22,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:41:22,559 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:41:22,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:41:22,559 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 08:41:22,559 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:41:22,560 INFO L85 PathProgramCache]: Analyzing trace with hash -2017315770, now seen corresponding path program 1 times [2023-08-30 08:41:22,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:41:22,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466654280] [2023-08-30 08:41:22,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:41:22,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:41:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:41:22,680 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 08:41:22,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:41:22,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466654280] [2023-08-30 08:41:22,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466654280] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:41:22,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:41:22,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:41:22,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338237699] [2023-08-30 08:41:22,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:41:22,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:41:22,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:41:22,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:41:22,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:41:22,702 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 204 [2023-08-30 08:41:22,703 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 95.2) internal successors, (476), 5 states have internal predecessors, (476), 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 08:41:22,703 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:41:22,704 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 204 [2023-08-30 08:41:22,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:41:22,970 INFO L130 PetriNetUnfolder]: 1062/1609 cut-off events. [2023-08-30 08:41:22,970 INFO L131 PetriNetUnfolder]: For 1095/1095 co-relation queries the response was YES. [2023-08-30 08:41:22,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4243 conditions, 1609 events. 1062/1609 cut-off events. For 1095/1095 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 7695 event pairs, 443 based on Foata normal form. 18/1532 useless extension candidates. Maximal degree in co-relation 4230. Up to 684 conditions per place. [2023-08-30 08:41:22,975 INFO L137 encePairwiseOnDemand]: 197/204 looper letters, 0 selfloop transitions, 0 changer transitions 57/57 dead transitions. [2023-08-30 08:41:22,976 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 57 transitions, 271 flow [2023-08-30 08:41:22,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:41:22,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:41:22,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 517 transitions. [2023-08-30 08:41:22,979 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5068627450980392 [2023-08-30 08:41:22,979 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 517 transitions. [2023-08-30 08:41:22,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 517 transitions. [2023-08-30 08:41:22,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:41:22,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 517 transitions. [2023-08-30 08:41:22,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.4) internal successors, (517), 5 states have internal predecessors, (517), 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 08:41:22,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 204.0) internal successors, (1224), 6 states have internal predecessors, (1224), 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 08:41:22,985 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 204.0) internal successors, (1224), 6 states have internal predecessors, (1224), 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 08:41:22,985 INFO L175 Difference]: Start difference. First operand has 41 places, 30 transitions, 115 flow. Second operand 5 states and 517 transitions. [2023-08-30 08:41:22,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 57 transitions, 271 flow [2023-08-30 08:41:22,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 57 transitions, 247 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-30 08:41:22,992 INFO L231 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2023-08-30 08:41:22,993 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2023-08-30 08:41:22,994 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2023-08-30 08:41:22,994 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 0 transitions, 0 flow [2023-08-30 08:41:22,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 95.2) internal successors, (476), 5 states have internal predecessors, (476), 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 08:41:22,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-08-30 08:41:22,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-08-30 08:41:22,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-08-30 08:41:22,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-08-30 08:41:22,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-08-30 08:41:22,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-08-30 08:41:22,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-30 08:41:23,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-08-30 08:41:23,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-08-30 08:41:23,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-08-30 08:41:23,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-08-30 08:41:23,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-08-30 08:41:23,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-08-30 08:41:23,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-08-30 08:41:23,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-08-30 08:41:23,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:41:23,003 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-30 08:41:23,008 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:41:23,008 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:41:23,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:41:23 BasicIcfg [2023-08-30 08:41:23,015 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:41:23,016 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:41:23,016 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:41:23,016 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:41:23,017 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:41:17" (3/4) ... [2023-08-30 08:41:23,019 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:41:23,023 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 08:41:23,023 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 08:41:23,023 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 08:41:23,029 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-30 08:41:23,030 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-30 08:41:23,030 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 08:41:23,030 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:41:23,065 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:41:23,067 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:41:23,069 INFO L158 Benchmark]: Toolchain (without parser) took 7311.94ms. Allocated memory was 79.7MB in the beginning and 172.0MB in the end (delta: 92.3MB). Free memory was 55.8MB in the beginning and 108.4MB in the end (delta: -52.6MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2023-08-30 08:41:23,069 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory was 42.8MB in the beginning and 42.8MB in the end (delta: 57.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:41:23,071 INFO L158 Benchmark]: CACSL2BoogieTranslator took 533.13ms. Allocated memory is still 79.7MB. Free memory was 55.6MB in the beginning and 51.2MB in the end (delta: 4.5MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2023-08-30 08:41:23,072 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.71ms. Allocated memory is still 79.7MB. Free memory was 51.2MB in the beginning and 48.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:41:23,072 INFO L158 Benchmark]: Boogie Preprocessor took 57.81ms. Allocated memory is still 79.7MB. Free memory was 48.6MB in the beginning and 46.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:41:23,072 INFO L158 Benchmark]: RCFGBuilder took 741.14ms. Allocated memory is still 79.7MB. Free memory was 46.9MB in the beginning and 38.0MB in the end (delta: 9.0MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2023-08-30 08:41:23,072 INFO L158 Benchmark]: TraceAbstraction took 5848.61ms. Allocated memory was 79.7MB in the beginning and 172.0MB in the end (delta: 92.3MB). Free memory was 37.1MB in the beginning and 111.6MB in the end (delta: -74.5MB). Peak memory consumption was 71.7MB. Max. memory is 16.1GB. [2023-08-30 08:41:23,073 INFO L158 Benchmark]: Witness Printer took 52.55ms. Allocated memory is still 172.0MB. Free memory was 111.6MB in the beginning and 108.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:41:23,074 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory was 42.8MB in the beginning and 42.8MB in the end (delta: 57.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 533.13ms. Allocated memory is still 79.7MB. Free memory was 55.6MB in the beginning and 51.2MB in the end (delta: 4.5MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.71ms. Allocated memory is still 79.7MB. Free memory was 51.2MB in the beginning and 48.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.81ms. Allocated memory is still 79.7MB. Free memory was 48.6MB in the beginning and 46.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 741.14ms. Allocated memory is still 79.7MB. Free memory was 46.9MB in the beginning and 38.0MB in the end (delta: 9.0MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5848.61ms. Allocated memory was 79.7MB in the beginning and 172.0MB in the end (delta: 92.3MB). Free memory was 37.1MB in the beginning and 111.6MB in the end (delta: -74.5MB). Peak memory consumption was 71.7MB. Max. memory is 16.1GB. * Witness Printer took 52.55ms. Allocated memory is still 172.0MB. Free memory was 111.6MB in the beginning and 108.4MB 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, 119 PlacesBefore, 40 PlacesAfterwards, 111 TransitionsBefore, 31 TransitionsAfterwards, 2468 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 90 TotalNumberOfCompositions, 8682 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3163, independent: 2903, independent conditional: 0, independent unconditional: 2903, dependent: 260, dependent conditional: 0, dependent unconditional: 260, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1277, independent: 1227, independent conditional: 0, independent unconditional: 1227, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3163, independent: 1676, independent conditional: 0, independent unconditional: 1676, dependent: 210, dependent conditional: 0, dependent unconditional: 210, unknown: 1277, unknown conditional: 0, unknown unconditional: 1277] , Statistics on independence cache: Total cache size (in pairs): 162, Positive cache size: 140, Positive conditional cache size: 0, Positive unconditional cache size: 140, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 823]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 823]: 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, 147 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: 5.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 158 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 136 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 283 IncrementalHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 5 mSDtfsCounter, 283 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=115occurred 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, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 135 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 08:41:23,097 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