./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e02ca79ae11b312cb156178ccd52c5da7b51884a938996d16b5a625457869bce --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 13:03:12,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:03:12,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:03:12,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:03:12,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:03:12,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:03:12,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:03:12,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:03:12,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:03:12,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:03:12,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:03:12,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:03:12,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:03:12,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:03:12,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:03:12,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:03:12,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:03:12,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:03:12,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:03:12,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:03:12,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:03:12,359 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:03:12,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:03:12,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:03:12,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:03:12,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:03:12,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:03:12,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:03:12,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:03:12,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:03:12,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:03:12,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:03:12,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:03:12,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:03:12,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:03:12,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:03:12,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:03:12,375 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:03:12,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:03:12,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:03:12,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:03:12,381 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:03:12,405 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:03:12,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:03:12,406 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:03:12,407 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:03:12,407 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:03:12,407 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:03:12,408 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:03:12,408 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:03:12,408 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:03:12,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:03:12,409 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:03:12,409 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:03:12,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:03:12,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:03:12,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:03:12,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:03:12,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:03:12,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:03:12,410 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:03:12,410 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:03:12,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:03:12,410 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:03:12,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:03:12,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:03:12,411 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:03:12,411 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:03:12,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:03:12,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:03:12,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:03:12,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:03:12,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:03:12,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:03:12,412 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:03:12,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:03:12,412 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:03:12,412 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:03:12,412 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:03:12,412 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e02ca79ae11b312cb156178ccd52c5da7b51884a938996d16b5a625457869bce Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:03:12,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:03:12,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:03:12,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:03:12,660 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:03:12,660 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:03:12,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 13:03:13,510 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:03:13,738 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:03:13,740 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 13:03:13,756 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d182f0a55/12530a85baea4fe1909f728a4dd1d5a2/FLAG847554f99 [2023-08-30 13:03:13,775 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d182f0a55/12530a85baea4fe1909f728a4dd1d5a2 [2023-08-30 13:03:13,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:03:13,778 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:03:13,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:03:13,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:03:13,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:03:13,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:03:13" (1/1) ... [2023-08-30 13:03:13,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@465fe9dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:13, skipping insertion in model container [2023-08-30 13:03:13,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:03:13" (1/1) ... [2023-08-30 13:03:13,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:03:13,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:03:13,948 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-08-30 13:03:14,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:03:14,102 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:03:14,112 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-08-30 13:03:14,136 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:03:14,163 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:03:14,163 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:03:14,168 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:03:14,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:14 WrapperNode [2023-08-30 13:03:14,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:03:14,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:03:14,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:03:14,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:03:14,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:14" (1/1) ... [2023-08-30 13:03:14,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:14" (1/1) ... [2023-08-30 13:03:14,222 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2023-08-30 13:03:14,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:03:14,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:03:14,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:03:14,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:03:14,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:14" (1/1) ... [2023-08-30 13:03:14,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:14" (1/1) ... [2023-08-30 13:03:14,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:14" (1/1) ... [2023-08-30 13:03:14,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:14" (1/1) ... [2023-08-30 13:03:14,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:14" (1/1) ... [2023-08-30 13:03:14,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:14" (1/1) ... [2023-08-30 13:03:14,257 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:14" (1/1) ... [2023-08-30 13:03:14,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:14" (1/1) ... [2023-08-30 13:03:14,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:03:14,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:03:14,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:03:14,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:03:14,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:14" (1/1) ... [2023-08-30 13:03:14,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:03:14,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:03:14,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 13:03:14,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 13:03:14,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:03:14,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 13:03:14,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:03:14,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:03:14,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:03:14,319 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 13:03:14,319 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 13:03:14,319 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 13:03:14,319 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 13:03:14,320 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 13:03:14,320 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 13:03:14,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:03:14,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 13:03:14,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:03:14,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:03:14,321 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 13:03:14,471 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:03:14,472 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:03:14,623 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:03:14,642 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:03:14,643 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:03:14,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:03:14 BoogieIcfgContainer [2023-08-30 13:03:14,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:03:14,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:03:14,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:03:14,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:03:14,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:03:13" (1/3) ... [2023-08-30 13:03:14,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10067923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:03:14, skipping insertion in model container [2023-08-30 13:03:14,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:03:14" (2/3) ... [2023-08-30 13:03:14,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10067923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:03:14, skipping insertion in model container [2023-08-30 13:03:14,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:03:14" (3/3) ... [2023-08-30 13:03:14,650 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 13:03:14,654 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:03:14,660 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:03:14,660 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 13:03:14,660 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:03:14,700 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 13:03:14,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 88 transitions, 191 flow [2023-08-30 13:03:14,744 INFO L130 PetriNetUnfolder]: 2/85 cut-off events. [2023-08-30 13:03:14,744 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:03:14,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 85 events. 2/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2023-08-30 13:03:14,748 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 88 transitions, 191 flow [2023-08-30 13:03:14,750 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 85 transitions, 179 flow [2023-08-30 13:03:14,752 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:03:14,758 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 85 transitions, 179 flow [2023-08-30 13:03:14,759 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 85 transitions, 179 flow [2023-08-30 13:03:14,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 179 flow [2023-08-30 13:03:14,777 INFO L130 PetriNetUnfolder]: 2/85 cut-off events. [2023-08-30 13:03:14,777 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:03:14,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 85 events. 2/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2023-08-30 13:03:14,778 INFO L119 LiptonReduction]: Number of co-enabled transitions 1930 [2023-08-30 13:03:16,567 INFO L134 LiptonReduction]: Checked pairs total: 5097 [2023-08-30 13:03:16,568 INFO L136 LiptonReduction]: Total number of compositions: 74 [2023-08-30 13:03:16,577 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:03:16,580 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3a4bbdc7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:03:16,581 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-30 13:03:16,583 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-30 13:03:16,583 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:03:16,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:03:16,583 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 13:03:16,584 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 13:03:16,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:03:16,587 INFO L85 PathProgramCache]: Analyzing trace with hash 309810666, now seen corresponding path program 1 times [2023-08-30 13:03:16,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:03:16,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75616062] [2023-08-30 13:03:16,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:03:16,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:03:16,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:03:16,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:03:16,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:03:16,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75616062] [2023-08-30 13:03:16,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75616062] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:03:16,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:03:16,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:03:16,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585921221] [2023-08-30 13:03:16,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:03:16,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:03:16,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:03:16,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:03:16,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:03:16,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 162 [2023-08-30 13:03:16,771 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:03:16,772 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:03:16,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 162 [2023-08-30 13:03:16,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:03:16,891 INFO L130 PetriNetUnfolder]: 316/546 cut-off events. [2023-08-30 13:03:16,892 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2023-08-30 13:03:16,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1125 conditions, 546 events. 316/546 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 2712 event pairs, 170 based on Foata normal form. 8/381 useless extension candidates. Maximal degree in co-relation 1114. Up to 505 conditions per place. [2023-08-30 13:03:16,899 INFO L137 encePairwiseOnDemand]: 150/162 looper letters, 26 selfloop transitions, 4 changer transitions 0/32 dead transitions. [2023-08-30 13:03:16,900 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 32 transitions, 139 flow [2023-08-30 13:03:16,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:03:16,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:03:16,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2023-08-30 13:03:16,908 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5246913580246914 [2023-08-30 13:03:16,909 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 255 transitions. [2023-08-30 13:03:16,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 255 transitions. [2023-08-30 13:03:16,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:03:16,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 255 transitions. [2023-08-30 13:03:16,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:03:16,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:03:16,916 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:03:16,917 INFO L175 Difference]: Start difference. First operand has 32 places, 23 transitions, 55 flow. Second operand 3 states and 255 transitions. [2023-08-30 13:03:16,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 32 transitions, 139 flow [2023-08-30 13:03:16,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 32 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 13:03:16,920 INFO L231 Difference]: Finished difference. Result has 32 places, 25 transitions, 88 flow [2023-08-30 13:03:16,921 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=32, PETRI_TRANSITIONS=25} [2023-08-30 13:03:16,923 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 0 predicate places. [2023-08-30 13:03:16,923 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 88 flow [2023-08-30 13:03:16,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:03:16,924 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:03:16,924 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:03:16,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:03:16,924 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 13:03:16,924 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:03:16,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1073353434, now seen corresponding path program 1 times [2023-08-30 13:03:16,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:03:16,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373900926] [2023-08-30 13:03:16,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:03:16,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:03:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:03:17,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:03:17,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:03:17,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373900926] [2023-08-30 13:03:17,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373900926] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:03:17,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:03:17,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:03:17,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248578090] [2023-08-30 13:03:17,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:03:17,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:03:17,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:03:17,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:03:17,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:03:17,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 162 [2023-08-30 13:03:17,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:03:17,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:03:17,024 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 162 [2023-08-30 13:03:17,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:03:17,091 INFO L130 PetriNetUnfolder]: 201/355 cut-off events. [2023-08-30 13:03:17,092 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2023-08-30 13:03:17,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 954 conditions, 355 events. 201/355 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1490 event pairs, 86 based on Foata normal form. 0/285 useless extension candidates. Maximal degree in co-relation 943. Up to 313 conditions per place. [2023-08-30 13:03:17,093 INFO L137 encePairwiseOnDemand]: 155/162 looper letters, 23 selfloop transitions, 4 changer transitions 0/29 dead transitions. [2023-08-30 13:03:17,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 29 transitions, 148 flow [2023-08-30 13:03:17,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:03:17,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:03:17,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 318 transitions. [2023-08-30 13:03:17,098 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49074074074074076 [2023-08-30 13:03:17,098 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 318 transitions. [2023-08-30 13:03:17,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 318 transitions. [2023-08-30 13:03:17,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:03:17,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 318 transitions. [2023-08-30 13:03:17,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:03:17,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:03:17,103 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:03:17,103 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 88 flow. Second operand 4 states and 318 transitions. [2023-08-30 13:03:17,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 29 transitions, 148 flow [2023-08-30 13:03:17,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 29 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:03:17,105 INFO L231 Difference]: Finished difference. Result has 31 places, 22 transitions, 80 flow [2023-08-30 13:03:17,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=80, PETRI_PLACES=31, PETRI_TRANSITIONS=22} [2023-08-30 13:03:17,105 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2023-08-30 13:03:17,105 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 80 flow [2023-08-30 13:03:17,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:03:17,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:03:17,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:03:17,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:03:17,106 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 13:03:17,109 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:03:17,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1073531065, now seen corresponding path program 1 times [2023-08-30 13:03:17,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:03:17,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306276144] [2023-08-30 13:03:17,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:03:17,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:03:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:03:17,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:03:17,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:03:17,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306276144] [2023-08-30 13:03:17,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306276144] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:03:17,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:03:17,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:03:17,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409298111] [2023-08-30 13:03:17,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:03:17,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:03:17,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:03:17,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:03:17,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:03:17,174 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 162 [2023-08-30 13:03:17,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 80 flow. Second operand has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:03:17,175 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:03:17,175 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 162 [2023-08-30 13:03:17,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:03:17,225 INFO L130 PetriNetUnfolder]: 74/155 cut-off events. [2023-08-30 13:03:17,225 INFO L131 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2023-08-30 13:03:17,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 155 events. 74/155 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 500 event pairs, 23 based on Foata normal form. 12/155 useless extension candidates. Maximal degree in co-relation 412. Up to 67 conditions per place. [2023-08-30 13:03:17,226 INFO L137 encePairwiseOnDemand]: 154/162 looper letters, 25 selfloop transitions, 7 changer transitions 3/37 dead transitions. [2023-08-30 13:03:17,226 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 37 transitions, 192 flow [2023-08-30 13:03:17,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:03:17,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:03:17,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 327 transitions. [2023-08-30 13:03:17,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5046296296296297 [2023-08-30 13:03:17,228 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 327 transitions. [2023-08-30 13:03:17,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 327 transitions. [2023-08-30 13:03:17,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:03:17,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 327 transitions. [2023-08-30 13:03:17,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:03:17,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:03:17,230 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:03:17,230 INFO L175 Difference]: Start difference. First operand has 31 places, 22 transitions, 80 flow. Second operand 4 states and 327 transitions. [2023-08-30 13:03:17,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 37 transitions, 192 flow [2023-08-30 13:03:17,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 37 transitions, 187 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:03:17,232 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 103 flow [2023-08-30 13:03:17,232 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=103, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2023-08-30 13:03:17,232 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2023-08-30 13:03:17,233 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 103 flow [2023-08-30 13:03:17,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:03:17,233 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:03:17,233 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:03:17,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:03:17,234 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 13:03:17,234 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:03:17,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1119406262, now seen corresponding path program 1 times [2023-08-30 13:03:17,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:03:17,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108881142] [2023-08-30 13:03:17,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:03:17,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:03:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:03:17,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:03:17,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:03:17,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108881142] [2023-08-30 13:03:17,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108881142] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:03:17,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:03:17,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:03:17,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270807552] [2023-08-30 13:03:17,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:03:17,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:03:17,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:03:17,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:03:17,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:03:17,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 162 [2023-08-30 13:03:17,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 22 transitions, 103 flow. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:03:17,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:03:17,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 162 [2023-08-30 13:03:17,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:03:17,376 INFO L130 PetriNetUnfolder]: 54/111 cut-off events. [2023-08-30 13:03:17,376 INFO L131 PetriNetUnfolder]: For 120/120 co-relation queries the response was YES. [2023-08-30 13:03:17,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 111 events. 54/111 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 344 event pairs, 15 based on Foata normal form. 9/117 useless extension candidates. Maximal degree in co-relation 350. Up to 48 conditions per place. [2023-08-30 13:03:17,377 INFO L137 encePairwiseOnDemand]: 154/162 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2023-08-30 13:03:17,377 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 29 transitions, 161 flow [2023-08-30 13:03:17,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:03:17,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:03:17,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 391 transitions. [2023-08-30 13:03:17,379 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48271604938271606 [2023-08-30 13:03:17,379 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 391 transitions. [2023-08-30 13:03:17,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 391 transitions. [2023-08-30 13:03:17,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:03:17,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 391 transitions. [2023-08-30 13:03:17,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 78.2) internal successors, (391), 5 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:03:17,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:03:17,381 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:03:17,382 INFO L175 Difference]: Start difference. First operand has 33 places, 22 transitions, 103 flow. Second operand 5 states and 391 transitions. [2023-08-30 13:03:17,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 29 transitions, 161 flow [2023-08-30 13:03:17,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 29 transitions, 137 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-30 13:03:17,383 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2023-08-30 13:03:17,383 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2023-08-30 13:03:17,383 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -4 predicate places. [2023-08-30 13:03:17,384 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2023-08-30 13:03:17,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:03:17,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-08-30 13:03:17,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-08-30 13:03:17,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-08-30 13:03:17,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-08-30 13:03:17,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-08-30 13:03:17,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-08-30 13:03:17,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-30 13:03:17,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-08-30 13:03:17,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-08-30 13:03:17,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-08-30 13:03:17,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-08-30 13:03:17,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-08-30 13:03:17,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-08-30 13:03:17,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-08-30 13:03:17,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-08-30 13:03:17,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:03:17,388 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-30 13:03:17,392 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:03:17,392 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:03:17,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:03:17 BasicIcfg [2023-08-30 13:03:17,394 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:03:17,394 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:03:17,394 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:03:17,394 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:03:17,395 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:03:14" (3/4) ... [2023-08-30 13:03:17,396 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:03:17,399 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 13:03:17,400 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 13:03:17,400 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 13:03:17,402 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-08-30 13:03:17,402 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 13:03:17,402 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 13:03:17,403 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 13:03:17,432 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:03:17,432 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:03:17,433 INFO L158 Benchmark]: Toolchain (without parser) took 3655.05ms. Allocated memory was 58.7MB in the beginning and 104.9MB in the end (delta: 46.1MB). Free memory was 36.0MB in the beginning and 81.0MB in the end (delta: -45.0MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. [2023-08-30 13:03:17,433 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 48.2MB. Free memory was 26.6MB in the beginning and 26.6MB in the end (delta: 37.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:03:17,433 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.15ms. Allocated memory is still 58.7MB. Free memory was 35.8MB in the beginning and 30.9MB in the end (delta: 4.9MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2023-08-30 13:03:17,433 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.80ms. Allocated memory is still 58.7MB. Free memory was 30.9MB in the beginning and 28.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:03:17,433 INFO L158 Benchmark]: Boogie Preprocessor took 41.17ms. Allocated memory is still 58.7MB. Free memory was 28.8MB in the beginning and 27.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:03:17,434 INFO L158 Benchmark]: RCFGBuilder took 378.86ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 27.2MB in the beginning and 38.9MB in the end (delta: -11.7MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2023-08-30 13:03:17,434 INFO L158 Benchmark]: TraceAbstraction took 2748.28ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 38.3MB in the beginning and 41.2MB in the end (delta: -2.9MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2023-08-30 13:03:17,434 INFO L158 Benchmark]: Witness Printer took 38.06ms. Allocated memory is still 104.9MB. Free memory was 41.2MB in the beginning and 81.0MB in the end (delta: -39.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:03:17,435 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 48.2MB. Free memory was 26.6MB in the beginning and 26.6MB in the end (delta: 37.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.15ms. Allocated memory is still 58.7MB. Free memory was 35.8MB in the beginning and 30.9MB in the end (delta: 4.9MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.80ms. Allocated memory is still 58.7MB. Free memory was 30.9MB in the beginning and 28.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.17ms. Allocated memory is still 58.7MB. Free memory was 28.8MB in the beginning and 27.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 378.86ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 27.2MB in the beginning and 38.9MB in the end (delta: -11.7MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2748.28ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 38.3MB in the beginning and 41.2MB in the end (delta: -2.9MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. * Witness Printer took 38.06ms. Allocated memory is still 104.9MB. Free memory was 41.2MB in the beginning and 81.0MB in the end (delta: -39.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 93 PlacesBefore, 32 PlacesAfterwards, 85 TransitionsBefore, 23 TransitionsAfterwards, 1930 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 74 TotalNumberOfCompositions, 5097 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2469, independent: 2308, independent conditional: 0, independent unconditional: 2308, dependent: 161, dependent conditional: 0, dependent unconditional: 161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1033, independent: 1003, independent conditional: 0, independent unconditional: 1003, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2469, independent: 1305, independent conditional: 0, independent unconditional: 1305, dependent: 131, dependent conditional: 0, dependent unconditional: 131, unknown: 1033, unknown conditional: 0, unknown unconditional: 1033] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 731]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 731]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 746]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 746]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 758]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 758]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 116 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 182 IncrementalHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 10 mSDtfsCounter, 182 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 13:03:17,449 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE