/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/mix000.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:30:45,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:30:45,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:30:45,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:30:45,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:30:45,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:30:45,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:30:45,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:30:45,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:30:45,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:30:45,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:30:45,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:30:45,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:30:45,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:30:45,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:30:45,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:30:45,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:30:45,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:30:45,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:30:45,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:30:45,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:30:45,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:30:45,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:30:45,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:30:45,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:30:45,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:30:45,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:30:45,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:30:45,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:30:45,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:30:45,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:30:45,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:30:45,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:30:45,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:30:45,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:30:45,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:30:45,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:30:45,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:30:45,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:30:45,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:30:45,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:30:45,477 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 11:30:45,513 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:30:45,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:30:45,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:30:45,515 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:30:45,515 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:30:45,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:30:45,516 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:30:45,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:30:45,516 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:30:45,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:30:45,517 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:30:45,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:30:45,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:30:45,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:30:45,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:30:45,517 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:30:45,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:30:45,518 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:30:45,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:30:45,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:30:45,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:30:45,518 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:30:45,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:30:45,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:30:45,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:30:45,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:30:45,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:30:45,519 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:30:45,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:30:45,519 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:30:45,519 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:30:45,520 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:30:45,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:30:45,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:30:45,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:30:45,794 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:30:45,794 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:30:45,795 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix000.oepc.i [2022-09-16 11:30:45,855 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1105fde5b/828ab0003dc94c2faeb317489f870396/FLAG61d00e7df [2022-09-16 11:30:46,433 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:30:46,434 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix000.oepc.i [2022-09-16 11:30:46,457 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1105fde5b/828ab0003dc94c2faeb317489f870396/FLAG61d00e7df [2022-09-16 11:30:46,862 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1105fde5b/828ab0003dc94c2faeb317489f870396 [2022-09-16 11:30:46,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:30:46,866 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:30:46,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:30:46,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:30:46,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:30:46,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:30:46" (1/1) ... [2022-09-16 11:30:46,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ab872d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:46, skipping insertion in model container [2022-09-16 11:30:46,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:30:46" (1/1) ... [2022-09-16 11:30:46,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:30:46,922 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:30:47,080 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/mix000.oepc.i[988,1001] [2022-09-16 11:30:47,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:30:47,294 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:30:47,304 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/mix000.oepc.i[988,1001] [2022-09-16 11:30:47,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:30:47,378 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:30:47,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:47 WrapperNode [2022-09-16 11:30:47,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:30:47,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:30:47,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:30:47,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:30:47,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:47" (1/1) ... [2022-09-16 11:30:47,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:47" (1/1) ... [2022-09-16 11:30:47,462 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 267 [2022-09-16 11:30:47,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:30:47,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:30:47,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:30:47,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:30:47,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:47" (1/1) ... [2022-09-16 11:30:47,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:47" (1/1) ... [2022-09-16 11:30:47,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:47" (1/1) ... [2022-09-16 11:30:47,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:47" (1/1) ... [2022-09-16 11:30:47,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:47" (1/1) ... [2022-09-16 11:30:47,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:47" (1/1) ... [2022-09-16 11:30:47,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:47" (1/1) ... [2022-09-16 11:30:47,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:30:47,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:30:47,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:30:47,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:30:47,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:47" (1/1) ... [2022-09-16 11:30:47,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:30:47,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:30:47,544 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 11:30:47,581 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 11:30:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:30:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:30:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:30:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:30:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:30:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:30:47,606 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:30:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:30:47,606 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:30:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:30:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:30:47,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:30:47,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:30:47,609 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 11:30:47,727 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:30:47,728 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:30:48,298 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:30:48,767 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:30:48,767 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:30:48,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:30:48 BoogieIcfgContainer [2022-09-16 11:30:48,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:30:48,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:30:48,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:30:48,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:30:48,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:30:46" (1/3) ... [2022-09-16 11:30:48,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560f3c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:30:48, skipping insertion in model container [2022-09-16 11:30:48,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:30:47" (2/3) ... [2022-09-16 11:30:48,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560f3c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:30:48, skipping insertion in model container [2022-09-16 11:30:48,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:30:48" (3/3) ... [2022-09-16 11:30:48,777 INFO L112 eAbstractionObserver]: Analyzing ICFG mix000.oepc.i [2022-09-16 11:30:48,794 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:30:48,794 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-09-16 11:30:48,794 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:30:48,870 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:30:48,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 101 transitions, 212 flow [2022-09-16 11:30:48,968 INFO L130 PetriNetUnfolder]: 2/99 cut-off events. [2022-09-16 11:30:48,968 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:30:48,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 99 events. 2/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2022-09-16 11:30:48,972 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 101 transitions, 212 flow [2022-09-16 11:30:48,977 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 99 transitions, 204 flow [2022-09-16 11:30:48,992 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:30:49,000 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;@4b081c4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:30:49,000 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-09-16 11:30:49,021 INFO L130 PetriNetUnfolder]: 0/53 cut-off events. [2022-09-16 11:30:49,021 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:30:49,022 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:30:49,023 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] [2022-09-16 11:30:49,024 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 11:30:49,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:30:49,028 INFO L85 PathProgramCache]: Analyzing trace with hash -441067073, now seen corresponding path program 1 times [2022-09-16 11:30:49,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:30:49,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410461213] [2022-09-16 11:30:49,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:30:49,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:30:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:30:49,395 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 11:30:49,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:30:49,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410461213] [2022-09-16 11:30:49,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410461213] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:30:49,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:30:49,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:30:49,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283549447] [2022-09-16 11:30:49,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:30:49,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:30:49,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:30:49,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:30:49,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:30:49,446 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 101 [2022-09-16 11:30:49,460 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 99 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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 11:30:49,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:30:49,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 101 [2022-09-16 11:30:49,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:30:49,722 INFO L130 PetriNetUnfolder]: 86/386 cut-off events. [2022-09-16 11:30:49,722 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-09-16 11:30:49,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 566 conditions, 386 events. 86/386 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1850 event pairs, 43 based on Foata normal form. 20/364 useless extension candidates. Maximal degree in co-relation 516. Up to 84 conditions per place. [2022-09-16 11:30:49,731 INFO L137 encePairwiseOnDemand]: 92/101 looper letters, 21 selfloop transitions, 3 changer transitions 2/106 dead transitions. [2022-09-16 11:30:49,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 106 transitions, 273 flow [2022-09-16 11:30:49,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:30:49,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:30:49,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2022-09-16 11:30:49,749 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9240924092409241 [2022-09-16 11:30:49,750 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 280 transitions. [2022-09-16 11:30:49,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 280 transitions. [2022-09-16 11:30:49,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:30:49,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 280 transitions. [2022-09-16 11:30:49,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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 11:30:49,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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 11:30:49,770 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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 11:30:49,772 INFO L175 Difference]: Start difference. First operand has 104 places, 99 transitions, 204 flow. Second operand 3 states and 280 transitions. [2022-09-16 11:30:49,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 106 transitions, 273 flow [2022-09-16 11:30:49,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 106 transitions, 270 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:30:49,781 INFO L231 Difference]: Finished difference. Result has 104 places, 96 transitions, 213 flow [2022-09-16 11:30:49,783 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=104, PETRI_TRANSITIONS=96} [2022-09-16 11:30:49,787 INFO L287 CegarLoopForPetriNet]: 104 programPoint places, 0 predicate places. [2022-09-16 11:30:49,787 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 96 transitions, 213 flow [2022-09-16 11:30:49,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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 11:30:49,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:30:49,788 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, 1, 1] [2022-09-16 11:30:49,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:30:49,789 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:30:49,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:30:49,789 INFO L85 PathProgramCache]: Analyzing trace with hash 750651887, now seen corresponding path program 1 times [2022-09-16 11:30:49,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:30:49,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727423171] [2022-09-16 11:30:49,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:30:49,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:30:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:30:49,964 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 11:30:49,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:30:49,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727423171] [2022-09-16 11:30:49,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727423171] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:30:49,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:30:49,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:30:49,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887379829] [2022-09-16 11:30:49,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:30:49,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:30:49,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:30:49,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:30:49,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:30:49,968 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 101 [2022-09-16 11:30:49,969 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 96 transitions, 213 flow. Second operand has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:30:49,969 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:30:49,969 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 101 [2022-09-16 11:30:49,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:30:50,109 INFO L130 PetriNetUnfolder]: 77/362 cut-off events. [2022-09-16 11:30:50,111 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-09-16 11:30:50,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 575 conditions, 362 events. 77/362 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1653 event pairs, 43 based on Foata normal form. 0/335 useless extension candidates. Maximal degree in co-relation 524. Up to 84 conditions per place. [2022-09-16 11:30:50,116 INFO L137 encePairwiseOnDemand]: 96/101 looper letters, 19 selfloop transitions, 3 changer transitions 0/102 dead transitions. [2022-09-16 11:30:50,122 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 102 transitions, 267 flow [2022-09-16 11:30:50,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:30:50,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:30:50,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 352 transitions. [2022-09-16 11:30:50,124 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8712871287128713 [2022-09-16 11:30:50,125 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 352 transitions. [2022-09-16 11:30:50,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 352 transitions. [2022-09-16 11:30:50,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:30:50,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 352 transitions. [2022-09-16 11:30:50,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 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 11:30:50,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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 11:30:50,129 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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 11:30:50,130 INFO L175 Difference]: Start difference. First operand has 104 places, 96 transitions, 213 flow. Second operand 4 states and 352 transitions. [2022-09-16 11:30:50,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 102 transitions, 267 flow [2022-09-16 11:30:50,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 102 transitions, 264 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:30:50,134 INFO L231 Difference]: Finished difference. Result has 104 places, 94 transitions, 208 flow [2022-09-16 11:30:50,134 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=101, 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=4, PETRI_FLOW=208, PETRI_PLACES=104, PETRI_TRANSITIONS=94} [2022-09-16 11:30:50,135 INFO L287 CegarLoopForPetriNet]: 104 programPoint places, 0 predicate places. [2022-09-16 11:30:50,135 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 94 transitions, 208 flow [2022-09-16 11:30:50,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:30:50,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:30:50,136 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, 1, 1] [2022-09-16 11:30:50,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:30:50,136 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:30:50,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:30:50,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1656220350, now seen corresponding path program 1 times [2022-09-16 11:30:50,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:30:50,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334723831] [2022-09-16 11:30:50,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:30:50,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:30:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:30:50,243 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 11:30:50,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:30:50,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334723831] [2022-09-16 11:30:50,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334723831] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:30:50,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:30:50,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:30:50,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067278122] [2022-09-16 11:30:50,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:30:50,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:30:50,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:30:50,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:30:50,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:30:50,247 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 101 [2022-09-16 11:30:50,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 94 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:30:50,248 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:30:50,248 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 101 [2022-09-16 11:30:50,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:30:50,351 INFO L130 PetriNetUnfolder]: 73/450 cut-off events. [2022-09-16 11:30:50,351 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-09-16 11:30:50,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 648 conditions, 450 events. 73/450 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2291 event pairs, 43 based on Foata normal form. 6/424 useless extension candidates. Maximal degree in co-relation 596. Up to 84 conditions per place. [2022-09-16 11:30:50,353 INFO L137 encePairwiseOnDemand]: 96/101 looper letters, 0 selfloop transitions, 0 changer transitions 100/100 dead transitions. [2022-09-16 11:30:50,353 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 100 transitions, 258 flow [2022-09-16 11:30:50,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:30:50,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:30:50,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 350 transitions. [2022-09-16 11:30:50,354 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8663366336633663 [2022-09-16 11:30:50,354 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 350 transitions. [2022-09-16 11:30:50,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 350 transitions. [2022-09-16 11:30:50,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:30:50,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 350 transitions. [2022-09-16 11:30:50,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 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 11:30:50,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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 11:30:50,357 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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 11:30:50,357 INFO L175 Difference]: Start difference. First operand has 104 places, 94 transitions, 208 flow. Second operand 4 states and 350 transitions. [2022-09-16 11:30:50,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 100 transitions, 258 flow [2022-09-16 11:30:50,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 100 transitions, 251 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:30:50,359 INFO L231 Difference]: Finished difference. Result has 102 places, 0 transitions, 0 flow [2022-09-16 11:30:50,360 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=102, PETRI_TRANSITIONS=0} [2022-09-16 11:30:50,360 INFO L287 CegarLoopForPetriNet]: 104 programPoint places, -2 predicate places. [2022-09-16 11:30:50,360 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 0 transitions, 0 flow [2022-09-16 11:30:50,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:30:50,363 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-09-16 11:30:50,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-09-16 11:30:50,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-09-16 11:30:50,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-09-16 11:30:50,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-09-16 11:30:50,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-09-16 11:30:50,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-09-16 11:30:50,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-09-16 11:30:50,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-09-16 11:30:50,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-09-16 11:30:50,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:30:50,366 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-09-16 11:30:50,371 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:30:50,371 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:30:50,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:30:50 BasicIcfg [2022-09-16 11:30:50,376 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:30:50,377 INFO L158 Benchmark]: Toolchain (without parser) took 3510.88ms. Allocated memory was 191.9MB in the beginning and 273.7MB in the end (delta: 81.8MB). Free memory was 161.0MB in the beginning and 107.4MB in the end (delta: 53.6MB). Peak memory consumption was 135.9MB. Max. memory is 8.0GB. [2022-09-16 11:30:50,377 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory is still 147.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:30:50,378 INFO L158 Benchmark]: CACSL2BoogieTranslator took 512.47ms. Allocated memory was 191.9MB in the beginning and 273.7MB in the end (delta: 81.8MB). Free memory was 160.7MB in the beginning and 229.7MB in the end (delta: -69.0MB). Peak memory consumption was 15.8MB. Max. memory is 8.0GB. [2022-09-16 11:30:50,378 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.43ms. Allocated memory is still 273.7MB. Free memory was 229.7MB in the beginning and 226.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:30:50,379 INFO L158 Benchmark]: Boogie Preprocessor took 50.76ms. Allocated memory is still 273.7MB. Free memory was 226.6MB in the beginning and 224.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:30:50,379 INFO L158 Benchmark]: RCFGBuilder took 1254.66ms. Allocated memory is still 273.7MB. Free memory was 224.0MB in the beginning and 168.7MB in the end (delta: 55.4MB). Peak memory consumption was 67.2MB. Max. memory is 8.0GB. [2022-09-16 11:30:50,380 INFO L158 Benchmark]: TraceAbstraction took 1604.76ms. Allocated memory is still 273.7MB. Free memory was 168.1MB in the beginning and 107.4MB in the end (delta: 60.8MB). Peak memory consumption was 61.3MB. Max. memory is 8.0GB. [2022-09-16 11:30:50,381 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory is still 147.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 512.47ms. Allocated memory was 191.9MB in the beginning and 273.7MB in the end (delta: 81.8MB). Free memory was 160.7MB in the beginning and 229.7MB in the end (delta: -69.0MB). Peak memory consumption was 15.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 82.43ms. Allocated memory is still 273.7MB. Free memory was 229.7MB in the beginning and 226.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 50.76ms. Allocated memory is still 273.7MB. Free memory was 226.6MB in the beginning and 224.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1254.66ms. Allocated memory is still 273.7MB. Free memory was 224.0MB in the beginning and 168.7MB in the end (delta: 55.4MB). Peak memory consumption was 67.2MB. Max. memory is 8.0GB. * TraceAbstraction took 1604.76ms. Allocated memory is still 273.7MB. Free memory was 168.1MB in the beginning and 107.4MB in the end (delta: 60.8MB). Peak memory consumption was 61.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: 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, 124 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: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 5 mSDtfsCounter, 92 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=213occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 170 NumberOfCodeBlocks, 170 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 167 ConstructedInterpolants, 0 QuantifiedInterpolants, 453 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 11:30:50,417 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...