/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:34:09,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:34:09,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:34:09,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:34:09,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:34:09,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:34:09,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:34:09,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:34:09,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:34:09,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:34:09,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:34:09,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:34:09,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:34:09,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:34:09,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:34:09,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:34:09,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:34:09,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:34:09,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:34:09,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:34:09,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:34:09,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:34:09,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:34:09,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:34:09,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:34:09,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:34:09,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:34:09,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:34:09,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:34:09,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:34:09,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:34:09,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:34:09,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:34:09,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:34:09,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:34:09,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:34:09,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:34:09,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:34:09,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:34:09,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:34:09,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:34:09,395 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-16 11:34:09,424 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:34:09,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:34:09,426 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:34:09,426 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:34:09,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:34:09,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:34:09,427 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:34:09,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:34:09,427 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:34:09,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:34:09,428 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:34:09,428 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:34:09,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:34:09,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:34:09,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:34:09,428 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:34:09,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:34:09,429 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:34:09,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:34:09,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:34:09,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:34:09,429 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:34:09,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:34:09,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:34:09,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:34:09,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:34:09,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:34:09,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:34:09,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:34:09,430 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:34:09,431 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:34:09,431 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:34:09,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:34:09,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:34:09,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:34:09,692 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:34:09,693 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:34:09,694 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-09-16 11:34:09,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a29f5c9ec/8ecbd99733e44e28ad672a01d2d2bcdd/FLAGe253190aa [2022-09-16 11:34:10,221 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:34:10,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-09-16 11:34:10,266 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a29f5c9ec/8ecbd99733e44e28ad672a01d2d2bcdd/FLAGe253190aa [2022-09-16 11:34:10,775 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a29f5c9ec/8ecbd99733e44e28ad672a01d2d2bcdd [2022-09-16 11:34:10,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:34:10,779 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:34:10,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:34:10,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:34:10,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:34:10,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:34:10" (1/1) ... [2022-09-16 11:34:10,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@451b1d76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:10, skipping insertion in model container [2022-09-16 11:34:10,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:34:10" (1/1) ... [2022-09-16 11:34:10,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:34:10,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:34:10,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[995,1008] [2022-09-16 11:34:11,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:34:11,209 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:34:11,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[995,1008] [2022-09-16 11:34:11,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:34:11,299 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:34:11,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:11 WrapperNode [2022-09-16 11:34:11,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:34:11,301 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:34:11,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:34:11,302 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:34:11,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:11" (1/1) ... [2022-09-16 11:34:11,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:11" (1/1) ... [2022-09-16 11:34:11,377 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 163 [2022-09-16 11:34:11,378 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:34:11,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:34:11,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:34:11,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:34:11,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:11" (1/1) ... [2022-09-16 11:34:11,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:11" (1/1) ... [2022-09-16 11:34:11,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:11" (1/1) ... [2022-09-16 11:34:11,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:11" (1/1) ... [2022-09-16 11:34:11,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:11" (1/1) ... [2022-09-16 11:34:11,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:11" (1/1) ... [2022-09-16 11:34:11,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:11" (1/1) ... [2022-09-16 11:34:11,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:34:11,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:34:11,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:34:11,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:34:11,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:11" (1/1) ... [2022-09-16 11:34:11,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:34:11,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:34:11,477 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) [2022-09-16 11:34:11,499 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 [2022-09-16 11:34:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:34:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:34:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:34:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:34:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:34:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:34:11,523 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:34:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:34:11,523 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:34:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:34:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:34:11,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:34:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:34:11,525 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:34:11,685 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:34:11,686 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:34:12,193 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:34:12,600 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:34:12,600 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:34:12,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:34:12 BoogieIcfgContainer [2022-09-16 11:34:12,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:34:12,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:34:12,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:34:12,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:34:12,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:34:10" (1/3) ... [2022-09-16 11:34:12,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bff1e53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:34:12, skipping insertion in model container [2022-09-16 11:34:12,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:11" (2/3) ... [2022-09-16 11:34:12,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bff1e53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:34:12, skipping insertion in model container [2022-09-16 11:34:12,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:34:12" (3/3) ... [2022-09-16 11:34:12,614 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-09-16 11:34:12,631 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:34:12,631 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-09-16 11:34:12,632 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:34:12,690 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:34:12,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 98 transitions, 206 flow [2022-09-16 11:34:12,773 INFO L130 PetriNetUnfolder]: 2/96 cut-off events. [2022-09-16 11:34:12,774 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:34:12,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 96 events. 2/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-09-16 11:34:12,781 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 98 transitions, 206 flow [2022-09-16 11:34:12,784 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 96 transitions, 198 flow [2022-09-16 11:34:12,798 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:34:12,805 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=false, 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;@317eb883, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:34:12,806 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-09-16 11:34:12,830 INFO L130 PetriNetUnfolder]: 0/49 cut-off events. [2022-09-16 11:34:12,830 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:34:12,830 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:12,831 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:34:12,832 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:34:12,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:12,838 INFO L85 PathProgramCache]: Analyzing trace with hash 739946880, now seen corresponding path program 1 times [2022-09-16 11:34:12,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:12,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443791018] [2022-09-16 11:34:12,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:12,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:13,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:34:13,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:13,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443791018] [2022-09-16 11:34:13,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443791018] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:13,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:13,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:34:13,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151637009] [2022-09-16 11:34:13,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:13,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:34:13,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:13,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:34:13,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:34:13,189 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 98 [2022-09-16 11:34:13,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 96 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2022-09-16 11:34:13,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:13,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 98 [2022-09-16 11:34:13,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:13,390 INFO L130 PetriNetUnfolder]: 68/357 cut-off events. [2022-09-16 11:34:13,391 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-09-16 11:34:13,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 504 conditions, 357 events. 68/357 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1602 event pairs, 40 based on Foata normal form. 18/336 useless extension candidates. Maximal degree in co-relation 456. Up to 73 conditions per place. [2022-09-16 11:34:13,397 INFO L137 encePairwiseOnDemand]: 89/98 looper letters, 19 selfloop transitions, 3 changer transitions 2/102 dead transitions. [2022-09-16 11:34:13,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 102 transitions, 261 flow [2022-09-16 11:34:13,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:34:13,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:34:13,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 272 transitions. [2022-09-16 11:34:13,417 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9251700680272109 [2022-09-16 11:34:13,418 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 272 transitions. [2022-09-16 11:34:13,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 272 transitions. [2022-09-16 11:34:13,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:13,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 272 transitions. [2022-09-16 11:34:13,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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) [2022-09-16 11:34:13,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2022-09-16 11:34:13,437 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2022-09-16 11:34:13,439 INFO L175 Difference]: Start difference. First operand has 101 places, 96 transitions, 198 flow. Second operand 3 states and 272 transitions. [2022-09-16 11:34:13,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 102 transitions, 261 flow [2022-09-16 11:34:13,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 102 transitions, 258 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:34:13,448 INFO L231 Difference]: Finished difference. Result has 101 places, 93 transitions, 207 flow [2022-09-16 11:34:13,449 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=207, PETRI_PLACES=101, PETRI_TRANSITIONS=93} [2022-09-16 11:34:13,454 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 0 predicate places. [2022-09-16 11:34:13,455 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 93 transitions, 207 flow [2022-09-16 11:34:13,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2022-09-16 11:34:13,455 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:13,455 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:34:13,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:34:13,456 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:34:13,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:13,457 INFO L85 PathProgramCache]: Analyzing trace with hash -471367323, now seen corresponding path program 1 times [2022-09-16 11:34:13,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:13,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314655101] [2022-09-16 11:34:13,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:13,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:13,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:34:13,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:13,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314655101] [2022-09-16 11:34:13,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314655101] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:13,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:13,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:34:13,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739818405] [2022-09-16 11:34:13,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:13,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:34:13,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:13,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:34:13,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:34:13,650 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 98 [2022-09-16 11:34:13,651 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 93 transitions, 207 flow. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2022-09-16 11:34:13,651 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:13,651 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 98 [2022-09-16 11:34:13,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:13,761 INFO L130 PetriNetUnfolder]: 59/300 cut-off events. [2022-09-16 11:34:13,763 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-09-16 11:34:13,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 300 events. 59/300 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1249 event pairs, 30 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 425. Up to 61 conditions per place. [2022-09-16 11:34:13,769 INFO L137 encePairwiseOnDemand]: 93/98 looper letters, 17 selfloop transitions, 3 changer transitions 0/98 dead transitions. [2022-09-16 11:34:13,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 98 transitions, 255 flow [2022-09-16 11:34:13,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:34:13,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:34:13,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 342 transitions. [2022-09-16 11:34:13,777 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8724489795918368 [2022-09-16 11:34:13,778 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 342 transitions. [2022-09-16 11:34:13,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 342 transitions. [2022-09-16 11:34:13,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:13,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 342 transitions. [2022-09-16 11:34:13,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.5) internal successors, (342), 4 states have internal predecessors, (342), 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) [2022-09-16 11:34:13,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 98.0) internal successors, (490), 5 states have internal predecessors, (490), 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) [2022-09-16 11:34:13,783 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 98.0) internal successors, (490), 5 states have internal predecessors, (490), 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) [2022-09-16 11:34:13,783 INFO L175 Difference]: Start difference. First operand has 101 places, 93 transitions, 207 flow. Second operand 4 states and 342 transitions. [2022-09-16 11:34:13,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 98 transitions, 255 flow [2022-09-16 11:34:13,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 98 transitions, 252 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:34:13,787 INFO L231 Difference]: Finished difference. Result has 101 places, 91 transitions, 202 flow [2022-09-16 11:34:13,787 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=101, PETRI_TRANSITIONS=91} [2022-09-16 11:34:13,788 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 0 predicate places. [2022-09-16 11:34:13,788 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 91 transitions, 202 flow [2022-09-16 11:34:13,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2022-09-16 11:34:13,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:13,789 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:34:13,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:34:13,789 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:34:13,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:13,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1730089032, now seen corresponding path program 1 times [2022-09-16 11:34:13,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:13,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570922474] [2022-09-16 11:34:13,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:13,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:13,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:34:13,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:13,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570922474] [2022-09-16 11:34:13,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570922474] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:13,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:13,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:34:13,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314352035] [2022-09-16 11:34:13,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:13,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:34:13,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:13,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:34:13,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:34:13,937 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 98 [2022-09-16 11:34:13,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 91 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2022-09-16 11:34:13,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:13,937 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 98 [2022-09-16 11:34:13,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:14,026 INFO L130 PetriNetUnfolder]: 55/290 cut-off events. [2022-09-16 11:34:14,026 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-09-16 11:34:14,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 290 events. 55/290 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1151 event pairs, 30 based on Foata normal form. 6/277 useless extension candidates. Maximal degree in co-relation 399. Up to 61 conditions per place. [2022-09-16 11:34:14,028 INFO L137 encePairwiseOnDemand]: 93/98 looper letters, 0 selfloop transitions, 0 changer transitions 96/96 dead transitions. [2022-09-16 11:34:14,028 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 96 transitions, 246 flow [2022-09-16 11:34:14,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:34:14,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:34:14,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 340 transitions. [2022-09-16 11:34:14,030 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8673469387755102 [2022-09-16 11:34:14,031 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 340 transitions. [2022-09-16 11:34:14,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 340 transitions. [2022-09-16 11:34:14,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:14,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 340 transitions. [2022-09-16 11:34:14,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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) [2022-09-16 11:34:14,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 98.0) internal successors, (490), 5 states have internal predecessors, (490), 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) [2022-09-16 11:34:14,033 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 98.0) internal successors, (490), 5 states have internal predecessors, (490), 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) [2022-09-16 11:34:14,033 INFO L175 Difference]: Start difference. First operand has 101 places, 91 transitions, 202 flow. Second operand 4 states and 340 transitions. [2022-09-16 11:34:14,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 96 transitions, 246 flow [2022-09-16 11:34:14,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 96 transitions, 239 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:34:14,038 INFO L231 Difference]: Finished difference. Result has 99 places, 0 transitions, 0 flow [2022-09-16 11:34:14,038 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=99, PETRI_TRANSITIONS=0} [2022-09-16 11:34:14,040 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, -2 predicate places. [2022-09-16 11:34:14,040 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 0 transitions, 0 flow [2022-09-16 11:34:14,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2022-09-16 11:34:14,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-09-16 11:34:14,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-09-16 11:34:14,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-09-16 11:34:14,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-09-16 11:34:14,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-09-16 11:34:14,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-09-16 11:34:14,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-09-16 11:34:14,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-09-16 11:34:14,048 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-09-16 11:34:14,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-09-16 11:34:14,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:34:14,049 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-09-16 11:34:14,056 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:34:14,056 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:34:14,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:34:14 BasicIcfg [2022-09-16 11:34:14,062 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:34:14,063 INFO L158 Benchmark]: Toolchain (without parser) took 3283.93ms. Allocated memory was 179.3MB in the beginning and 216.0MB in the end (delta: 36.7MB). Free memory was 159.9MB in the beginning and 123.4MB in the end (delta: 36.5MB). Peak memory consumption was 73.1MB. Max. memory is 8.0GB. [2022-09-16 11:34:14,065 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 179.3MB. Free memory was 141.9MB in the beginning and 141.8MB in the end (delta: 87.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:34:14,065 INFO L158 Benchmark]: CACSL2BoogieTranslator took 520.91ms. Allocated memory is still 179.3MB. Free memory was 159.7MB in the beginning and 143.6MB in the end (delta: 16.1MB). Peak memory consumption was 20.3MB. Max. memory is 8.0GB. [2022-09-16 11:34:14,067 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.44ms. Allocated memory is still 179.3MB. Free memory was 143.6MB in the beginning and 141.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:34:14,068 INFO L158 Benchmark]: Boogie Preprocessor took 59.65ms. Allocated memory is still 179.3MB. Free memory was 141.1MB in the beginning and 139.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:34:14,068 INFO L158 Benchmark]: RCFGBuilder took 1164.41ms. Allocated memory is still 179.3MB. Free memory was 139.1MB in the beginning and 132.8MB in the end (delta: 6.3MB). Peak memory consumption was 69.2MB. Max. memory is 8.0GB. [2022-09-16 11:34:14,068 INFO L158 Benchmark]: TraceAbstraction took 1456.69ms. Allocated memory was 179.3MB in the beginning and 216.0MB in the end (delta: 36.7MB). Free memory was 132.2MB in the beginning and 123.4MB in the end (delta: 8.8MB). Peak memory consumption was 47.1MB. Max. memory is 8.0GB. [2022-09-16 11:34:14,073 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 179.3MB. Free memory was 141.9MB in the beginning and 141.8MB in the end (delta: 87.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 520.91ms. Allocated memory is still 179.3MB. Free memory was 159.7MB in the beginning and 143.6MB in the end (delta: 16.1MB). Peak memory consumption was 20.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 76.44ms. Allocated memory is still 179.3MB. Free memory was 143.6MB in the beginning and 141.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 59.65ms. Allocated memory is still 179.3MB. Free memory was 141.1MB in the beginning and 139.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1164.41ms. Allocated memory is still 179.3MB. Free memory was 139.1MB in the beginning and 132.8MB in the end (delta: 6.3MB). Peak memory consumption was 69.2MB. Max. memory is 8.0GB. * TraceAbstraction took 1456.69ms. Allocated memory was 179.3MB in the beginning and 216.0MB in the end (delta: 36.7MB). Free memory was 132.2MB in the beginning and 123.4MB in the end (delta: 8.8MB). Peak memory consumption was 47.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 759]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 759]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: 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 5 procedures, 120 locations, 10 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: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 84 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 5 mSDtfsCounter, 84 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=207occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 426 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:34:14,113 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...