/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/rfi000_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:33:57,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:33:57,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:33:57,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:33:57,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:33:57,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:33:57,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:33:57,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:33:57,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:33:57,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:33:57,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:33:57,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:33:57,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:33:57,364 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:33:57,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:33:57,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:33:57,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:33:57,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:33:57,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:33:57,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:33:57,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:33:57,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:33:57,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:33:57,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:33:57,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:33:57,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:33:57,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:33:57,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:33:57,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:33:57,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:33:57,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:33:57,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:33:57,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:33:57,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:33:57,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:33:57,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:33:57,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:33:57,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:33:57,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:33:57,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:33:57,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:33:57,401 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 11:33:57,425 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:33:57,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:33:57,426 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:33:57,426 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:33:57,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:33:57,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:33:57,427 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:33:57,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:33:57,427 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:33:57,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:33:57,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:33:57,428 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:33:57,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:33:57,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:33:57,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:33:57,428 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:33:57,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:33:57,428 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:33:57,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:33:57,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:33:57,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:33:57,428 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:33:57,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:33:57,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:33:57,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:33:57,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:33:57,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:33:57,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:33:57,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:33:57,429 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:33:57,429 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:33:57,429 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:33:57,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:33:57,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:33:57,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:33:57,668 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:33:57,668 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:33:57,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2022-09-16 11:33:57,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/725c3de20/8cece9f0c1f94d8c97266d8499bb7c92/FLAG33e5bef03 [2022-09-16 11:33:58,080 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:33:58,080 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2022-09-16 11:33:58,093 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/725c3de20/8cece9f0c1f94d8c97266d8499bb7c92/FLAG33e5bef03 [2022-09-16 11:33:58,455 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/725c3de20/8cece9f0c1f94d8c97266d8499bb7c92 [2022-09-16 11:33:58,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:33:58,459 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:33:58,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:33:58,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:33:58,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:33:58,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:58,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a527b34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58, skipping insertion in model container [2022-09-16 11:33:58,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:58,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:33:58,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:33:58,679 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/rfi000_tso.i[944,957] [2022-09-16 11:33:58,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:33:58,873 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:33:58,887 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/rfi000_tso.i[944,957] [2022-09-16 11:33:58,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:33:58,968 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:33:58,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58 WrapperNode [2022-09-16 11:33:58,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:33:58,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:33:58,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:33:58,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:33:58,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:58,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:59,025 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 466 [2022-09-16 11:33:59,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:33:59,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:33:59,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:33:59,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:33:59,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:59,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:59,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:59,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:59,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:59,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:59,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:59,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:33:59,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:33:59,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:33:59,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:33:59,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:59,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:33:59,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:33:59,115 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 11:33:59,133 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 11:33:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:33:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:33:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:33:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:33:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:33:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:33:59,146 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:33:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:33:59,146 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:33:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:33:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:33:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:33:59,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:33:59,148 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 11:33:59,308 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:33:59,309 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:33:59,963 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:34:00,387 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:34:00,387 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:34:00,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:34:00 BoogieIcfgContainer [2022-09-16 11:34:00,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:34:00,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:34:00,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:34:00,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:34:00,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:33:58" (1/3) ... [2022-09-16 11:34:00,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107bf818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:34:00, skipping insertion in model container [2022-09-16 11:34:00,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (2/3) ... [2022-09-16 11:34:00,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107bf818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:34:00, skipping insertion in model container [2022-09-16 11:34:00,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:34:00" (3/3) ... [2022-09-16 11:34:00,395 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2022-09-16 11:34:00,409 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:34:00,409 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-09-16 11:34:00,409 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:34:00,461 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:34:00,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 99 transitions, 208 flow [2022-09-16 11:34:00,511 INFO L130 PetriNetUnfolder]: 2/97 cut-off events. [2022-09-16 11:34:00,512 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:34:00,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 97 events. 2/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2022-09-16 11:34:00,514 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 99 transitions, 208 flow [2022-09-16 11:34:00,517 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 97 transitions, 200 flow [2022-09-16 11:34:00,523 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:34:00,527 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;@85459c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:34:00,528 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-09-16 11:34:00,535 INFO L130 PetriNetUnfolder]: 0/50 cut-off events. [2022-09-16 11:34:00,535 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:34:00,535 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:00,536 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 11:34:00,536 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:34:00,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:00,540 INFO L85 PathProgramCache]: Analyzing trace with hash 479810386, now seen corresponding path program 1 times [2022-09-16 11:34:00,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:00,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68277209] [2022-09-16 11:34:00,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:00,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:00,756 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 11:34:00,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:00,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68277209] [2022-09-16 11:34:00,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68277209] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:00,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:00,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:34:00,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750731451] [2022-09-16 11:34:00,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:00,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:34:00,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:00,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:34:00,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:34:00,793 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 99 [2022-09-16 11:34:00,798 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 97 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 11:34:00,799 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:00,799 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 99 [2022-09-16 11:34:00,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:00,982 INFO L130 PetriNetUnfolder]: 105/560 cut-off events. [2022-09-16 11:34:00,982 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-09-16 11:34:00,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 769 conditions, 560 events. 105/560 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3263 event pairs, 65 based on Foata normal form. 35/549 useless extension candidates. Maximal degree in co-relation 721. Up to 111 conditions per place. [2022-09-16 11:34:00,986 INFO L137 encePairwiseOnDemand]: 90/99 looper letters, 23 selfloop transitions, 3 changer transitions 2/105 dead transitions. [2022-09-16 11:34:00,986 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 105 transitions, 275 flow [2022-09-16 11:34:00,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:34:00,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:34:00,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2022-09-16 11:34:00,996 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9191919191919192 [2022-09-16 11:34:00,997 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2022-09-16 11:34:00,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2022-09-16 11:34:00,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:01,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2022-09-16 11:34:01,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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 11:34:01,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 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 11:34:01,006 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 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 11:34:01,007 INFO L175 Difference]: Start difference. First operand has 102 places, 97 transitions, 200 flow. Second operand 3 states and 273 transitions. [2022-09-16 11:34:01,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 105 transitions, 275 flow [2022-09-16 11:34:01,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 105 transitions, 272 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:34:01,012 INFO L231 Difference]: Finished difference. Result has 102 places, 94 transitions, 209 flow [2022-09-16 11:34:01,014 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=209, PETRI_PLACES=102, PETRI_TRANSITIONS=94} [2022-09-16 11:34:01,016 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 0 predicate places. [2022-09-16 11:34:01,017 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 209 flow [2022-09-16 11:34:01,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 11:34:01,017 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:01,017 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, 1] [2022-09-16 11:34:01,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:34:01,018 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 11:34:01,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:01,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1855302049, now seen corresponding path program 1 times [2022-09-16 11:34:01,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:01,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180806662] [2022-09-16 11:34:01,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:01,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:01,116 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 11:34:01,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:01,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180806662] [2022-09-16 11:34:01,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180806662] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:01,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:01,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:34:01,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570849079] [2022-09-16 11:34:01,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:01,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:34:01,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:01,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:34:01,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:34:01,119 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 99 [2022-09-16 11:34:01,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 209 flow. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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 11:34:01,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:01,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 99 [2022-09-16 11:34:01,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:01,223 INFO L130 PetriNetUnfolder]: 92/499 cut-off events. [2022-09-16 11:34:01,223 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-09-16 11:34:01,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 750 conditions, 499 events. 92/499 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2791 event pairs, 59 based on Foata normal form. 0/471 useless extension candidates. Maximal degree in co-relation 701. Up to 87 conditions per place. [2022-09-16 11:34:01,226 INFO L137 encePairwiseOnDemand]: 94/99 looper letters, 21 selfloop transitions, 3 changer transitions 0/101 dead transitions. [2022-09-16 11:34:01,226 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 101 transitions, 269 flow [2022-09-16 11:34:01,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:34:01,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:34:01,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 342 transitions. [2022-09-16 11:34:01,229 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8636363636363636 [2022-09-16 11:34:01,229 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 342 transitions. [2022-09-16 11:34:01,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 342 transitions. [2022-09-16 11:34:01,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:01,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 342 transitions. [2022-09-16 11:34:01,230 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 11:34:01,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 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 11:34:01,231 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 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 11:34:01,231 INFO L175 Difference]: Start difference. First operand has 102 places, 94 transitions, 209 flow. Second operand 4 states and 342 transitions. [2022-09-16 11:34:01,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 101 transitions, 269 flow [2022-09-16 11:34:01,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 101 transitions, 266 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:34:01,234 INFO L231 Difference]: Finished difference. Result has 102 places, 92 transitions, 204 flow [2022-09-16 11:34:01,234 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=204, PETRI_PLACES=102, PETRI_TRANSITIONS=92} [2022-09-16 11:34:01,234 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 0 predicate places. [2022-09-16 11:34:01,235 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 92 transitions, 204 flow [2022-09-16 11:34:01,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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 11:34:01,235 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:01,235 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, 1] [2022-09-16 11:34:01,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:34:01,236 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 11:34:01,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:01,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1855302048, now seen corresponding path program 1 times [2022-09-16 11:34:01,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:01,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579917448] [2022-09-16 11:34:01,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:01,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:01,309 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 11:34:01,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:01,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579917448] [2022-09-16 11:34:01,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579917448] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:01,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:01,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:34:01,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909360646] [2022-09-16 11:34:01,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:01,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:34:01,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:01,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:34:01,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:34:01,312 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 99 [2022-09-16 11:34:01,312 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 92 transitions, 204 flow. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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 11:34:01,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:01,312 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 99 [2022-09-16 11:34:01,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:01,433 INFO L130 PetriNetUnfolder]: 86/470 cut-off events. [2022-09-16 11:34:01,433 INFO L131 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2022-09-16 11:34:01,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 700 conditions, 470 events. 86/470 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2533 event pairs, 56 based on Foata normal form. 8/451 useless extension candidates. Maximal degree in co-relation 650. Up to 87 conditions per place. [2022-09-16 11:34:01,435 INFO L137 encePairwiseOnDemand]: 94/99 looper letters, 0 selfloop transitions, 0 changer transitions 99/99 dead transitions. [2022-09-16 11:34:01,435 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 99 transitions, 260 flow [2022-09-16 11:34:01,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:34:01,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:34:01,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 340 transitions. [2022-09-16 11:34:01,436 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8585858585858586 [2022-09-16 11:34:01,437 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 340 transitions. [2022-09-16 11:34:01,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 340 transitions. [2022-09-16 11:34:01,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:01,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 340 transitions. [2022-09-16 11:34:01,438 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 11:34:01,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 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 11:34:01,439 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 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 11:34:01,439 INFO L175 Difference]: Start difference. First operand has 102 places, 92 transitions, 204 flow. Second operand 4 states and 340 transitions. [2022-09-16 11:34:01,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 99 transitions, 260 flow [2022-09-16 11:34:01,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 99 transitions, 253 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:34:01,440 INFO L231 Difference]: Finished difference. Result has 100 places, 0 transitions, 0 flow [2022-09-16 11:34:01,441 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=100, PETRI_TRANSITIONS=0} [2022-09-16 11:34:01,441 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, -2 predicate places. [2022-09-16 11:34:01,441 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 0 transitions, 0 flow [2022-09-16 11:34:01,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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 11:34:01,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-09-16 11:34:01,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-09-16 11:34:01,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-09-16 11:34:01,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-09-16 11:34:01,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-09-16 11:34:01,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-09-16 11:34:01,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-09-16 11:34:01,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-09-16 11:34:01,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-09-16 11:34:01,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-09-16 11:34:01,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:34:01,446 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-09-16 11:34:01,449 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:34:01,450 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:34:01,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:34:01 BasicIcfg [2022-09-16 11:34:01,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:34:01,454 INFO L158 Benchmark]: Toolchain (without parser) took 2995.67ms. Allocated memory was 178.3MB in the beginning and 230.7MB in the end (delta: 52.4MB). Free memory was 115.7MB in the beginning and 159.0MB in the end (delta: -43.2MB). Peak memory consumption was 108.1MB. Max. memory is 8.0GB. [2022-09-16 11:34:01,455 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 178.3MB. Free memory was 133.4MB in the beginning and 133.3MB in the end (delta: 151.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:34:01,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 509.42ms. Allocated memory was 178.3MB in the beginning and 230.7MB in the end (delta: 52.4MB). Free memory was 115.6MB in the beginning and 186.1MB in the end (delta: -70.5MB). Peak memory consumption was 14.6MB. Max. memory is 8.0GB. [2022-09-16 11:34:01,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.69ms. Allocated memory is still 230.7MB. Free memory was 186.1MB in the beginning and 182.4MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:34:01,456 INFO L158 Benchmark]: Boogie Preprocessor took 63.13ms. Allocated memory is still 230.7MB. Free memory was 182.4MB in the beginning and 179.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:34:01,456 INFO L158 Benchmark]: RCFGBuilder took 1299.08ms. Allocated memory is still 230.7MB. Free memory was 179.8MB in the beginning and 119.1MB in the end (delta: 60.6MB). Peak memory consumption was 123.7MB. Max. memory is 8.0GB. [2022-09-16 11:34:01,456 INFO L158 Benchmark]: TraceAbstraction took 1063.38ms. Allocated memory is still 230.7MB. Free memory was 118.6MB in the beginning and 159.0MB in the end (delta: -40.4MB). Peak memory consumption was 60.3MB. Max. memory is 8.0GB. [2022-09-16 11:34:01,458 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 178.3MB. Free memory was 133.4MB in the beginning and 133.3MB in the end (delta: 151.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 509.42ms. Allocated memory was 178.3MB in the beginning and 230.7MB in the end (delta: 52.4MB). Free memory was 115.6MB in the beginning and 186.1MB in the end (delta: -70.5MB). Peak memory consumption was 14.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.69ms. Allocated memory is still 230.7MB. Free memory was 186.1MB in the beginning and 182.4MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 63.13ms. Allocated memory is still 230.7MB. Free memory was 182.4MB in the beginning and 179.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1299.08ms. Allocated memory is still 230.7MB. Free memory was 179.8MB in the beginning and 119.1MB in the end (delta: 60.6MB). Peak memory consumption was 123.7MB. Max. memory is 8.0GB. * TraceAbstraction took 1063.38ms. Allocated memory is still 230.7MB. Free memory was 118.6MB in the beginning and 159.0MB in the end (delta: -40.4MB). Peak memory consumption was 60.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 751]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 751]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: 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, 122 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: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 101 IncrementalHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 5 mSDtfsCounter, 101 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=209occurred 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, 0.2s InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 432 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 11:34:01,494 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...