./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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 ../sv-benchmarks/c/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fb302bfc042709458f72100356b9fd74bb7921271e539fc7dcbd801222f139c8 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 21:50:36,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 21:50:36,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 21:50:36,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 21:50:36,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 21:50:36,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 21:50:36,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 21:50:36,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 21:50:36,480 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 21:50:36,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 21:50:36,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 21:50:36,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 21:50:36,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 21:50:36,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 21:50:36,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 21:50:36,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 21:50:36,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 21:50:36,492 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 21:50:36,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 21:50:36,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 21:50:36,499 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 21:50:36,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 21:50:36,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 21:50:36,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 21:50:36,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 21:50:36,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 21:50:36,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 21:50:36,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 21:50:36,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 21:50:36,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 21:50:36,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 21:50:36,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 21:50:36,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 21:50:36,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 21:50:36,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 21:50:36,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 21:50:36,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 21:50:36,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 21:50:36,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 21:50:36,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 21:50:36,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 21:50:36,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 21:50:36,517 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 21:50:36,533 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 21:50:36,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 21:50:36,535 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 21:50:36,535 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 21:50:36,536 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 21:50:36,536 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 21:50:36,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 21:50:36,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 21:50:36,536 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 21:50:36,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 21:50:36,537 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 21:50:36,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 21:50:36,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 21:50:36,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 21:50:36,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 21:50:36,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 21:50:36,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 21:50:36,538 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 21:50:36,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 21:50:36,539 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 21:50:36,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 21:50:36,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 21:50:36,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 21:50:36,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 21:50:36,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:50:36,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 21:50:36,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 21:50:36,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 21:50:36,541 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 21:50:36,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 21:50:36,552 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 21:50:36,552 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 21:50:36,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 21:50:36,552 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb302bfc042709458f72100356b9fd74bb7921271e539fc7dcbd801222f139c8 [2022-07-13 21:50:36,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 21:50:36,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 21:50:36,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 21:50:36,789 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 21:50:36,789 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 21:50:36,790 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i [2022-07-13 21:50:36,839 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e535db768/8ede2d4fbb99478abe0b76f1ced229aa/FLAG015862694 [2022-07-13 21:50:37,244 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 21:50:37,246 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i [2022-07-13 21:50:37,260 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e535db768/8ede2d4fbb99478abe0b76f1ced229aa/FLAG015862694 [2022-07-13 21:50:37,623 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e535db768/8ede2d4fbb99478abe0b76f1ced229aa [2022-07-13 21:50:37,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 21:50:37,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 21:50:37,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 21:50:37,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 21:50:37,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 21:50:37,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:50:37" (1/1) ... [2022-07-13 21:50:37,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a80cfe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:50:37, skipping insertion in model container [2022-07-13 21:50:37,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:50:37" (1/1) ... [2022-07-13 21:50:37,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 21:50:37,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 21:50:37,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i[992,1005] [2022-07-13 21:50:37,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:50:37,917 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 21:50:37,934 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i[992,1005] [2022-07-13 21:50:37,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:50:38,002 INFO L208 MainTranslator]: Completed translation [2022-07-13 21:50:38,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:50:38 WrapperNode [2022-07-13 21:50:38,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 21:50:38,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 21:50:38,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 21:50:38,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 21:50:38,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:50:38" (1/1) ... [2022-07-13 21:50:38,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:50:38" (1/1) ... [2022-07-13 21:50:38,052 INFO L137 Inliner]: procedures = 176, calls = 59, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-07-13 21:50:38,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 21:50:38,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 21:50:38,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 21:50:38,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 21:50:38,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:50:38" (1/1) ... [2022-07-13 21:50:38,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:50:38" (1/1) ... [2022-07-13 21:50:38,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:50:38" (1/1) ... [2022-07-13 21:50:38,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:50:38" (1/1) ... [2022-07-13 21:50:38,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:50:38" (1/1) ... [2022-07-13 21:50:38,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:50:38" (1/1) ... [2022-07-13 21:50:38,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:50:38" (1/1) ... [2022-07-13 21:50:38,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 21:50:38,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 21:50:38,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 21:50:38,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 21:50:38,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:50:38" (1/1) ... [2022-07-13 21:50:38,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:50:38,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 21:50:38,124 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) [2022-07-13 21:50:38,164 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 [2022-07-13 21:50:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 21:50:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-13 21:50:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 21:50:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 21:50:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 21:50:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-07-13 21:50:38,181 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-07-13 21:50:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-07-13 21:50:38,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-07-13 21:50:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-07-13 21:50:38,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-07-13 21:50:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 21:50:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-13 21:50:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 21:50:38,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 21:50:38,184 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 21:50:38,311 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 21:50:38,312 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 21:50:38,479 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 21:50:38,484 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 21:50:38,484 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 21:50:38,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:50:38 BoogieIcfgContainer [2022-07-13 21:50:38,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 21:50:38,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 21:50:38,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 21:50:38,490 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 21:50:38,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 09:50:37" (1/3) ... [2022-07-13 21:50:38,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a77df36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:50:38, skipping insertion in model container [2022-07-13 21:50:38,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:50:38" (2/3) ... [2022-07-13 21:50:38,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a77df36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:50:38, skipping insertion in model container [2022-07-13 21:50:38,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:50:38" (3/3) ... [2022-07-13 21:50:38,492 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i [2022-07-13 21:50:38,496 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 21:50:38,502 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 21:50:38,502 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 21:50:38,502 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 21:50:38,533 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-13 21:50:38,556 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 199 flow [2022-07-13 21:50:38,586 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2022-07-13 21:50:38,587 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-13 21:50:38,589 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 89 events. 2/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2022-07-13 21:50:38,590 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 92 transitions, 199 flow [2022-07-13 21:50:38,593 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 75 transitions, 159 flow [2022-07-13 21:50:38,600 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 21:50:38,604 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@43bfbdd7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6764ebd1 [2022-07-13 21:50:38,605 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-13 21:50:38,618 INFO L129 PetriNetUnfolder]: 1/74 cut-off events. [2022-07-13 21:50:38,618 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-13 21:50:38,619 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:50:38,619 INFO L200 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] [2022-07-13 21:50:38,620 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 21:50:38,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:50:38,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1426205310, now seen corresponding path program 1 times [2022-07-13 21:50:38,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:50:38,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303667779] [2022-07-13 21:50:38,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:50:38,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:50:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:50:39,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:50:39,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:50:39,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303667779] [2022-07-13 21:50:39,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303667779] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:50:39,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:50:39,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 21:50:39,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132532514] [2022-07-13 21:50:39,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:50:39,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 21:50:39,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:50:39,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 21:50:39,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 21:50:39,111 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 92 [2022-07-13 21:50:39,116 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 75 transitions, 159 flow. Second operand has 7 states, 7 states have (on average 71.85714285714286) internal successors, (503), 7 states have internal predecessors, (503), 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) [2022-07-13 21:50:39,117 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:50:39,117 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 92 [2022-07-13 21:50:39,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:50:39,415 INFO L129 PetriNetUnfolder]: 192/531 cut-off events. [2022-07-13 21:50:39,416 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-07-13 21:50:39,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 902 conditions, 531 events. 192/531 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2624 event pairs, 18 based on Foata normal form. 27/530 useless extension candidates. Maximal degree in co-relation 864. Up to 68 conditions per place. [2022-07-13 21:50:39,423 INFO L132 encePairwiseOnDemand]: 82/92 looper letters, 21 selfloop transitions, 5 changer transitions 42/124 dead transitions. [2022-07-13 21:50:39,424 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 124 transitions, 393 flow [2022-07-13 21:50:39,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 21:50:39,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-13 21:50:39,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 984 transitions. [2022-07-13 21:50:39,441 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.822742474916388 [2022-07-13 21:50:39,442 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 984 transitions. [2022-07-13 21:50:39,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 984 transitions. [2022-07-13 21:50:39,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:50:39,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 984 transitions. [2022-07-13 21:50:39,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 75.6923076923077) internal successors, (984), 13 states have internal predecessors, (984), 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) [2022-07-13 21:50:39,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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) [2022-07-13 21:50:39,456 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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) [2022-07-13 21:50:39,457 INFO L186 Difference]: Start difference. First operand has 84 places, 75 transitions, 159 flow. Second operand 13 states and 984 transitions. [2022-07-13 21:50:39,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 124 transitions, 393 flow [2022-07-13 21:50:39,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 124 transitions, 390 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-07-13 21:50:39,465 INFO L242 Difference]: Finished difference. Result has 105 places, 77 transitions, 226 flow [2022-07-13 21:50:39,466 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=226, PETRI_PLACES=105, PETRI_TRANSITIONS=77} [2022-07-13 21:50:39,468 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, 21 predicate places. [2022-07-13 21:50:39,469 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 77 transitions, 226 flow [2022-07-13 21:50:39,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 71.85714285714286) internal successors, (503), 7 states have internal predecessors, (503), 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) [2022-07-13 21:50:39,469 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:50:39,470 INFO L200 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] [2022-07-13 21:50:39,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 21:50:39,470 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 21:50:39,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:50:39,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1559330380, now seen corresponding path program 1 times [2022-07-13 21:50:39,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:50:39,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504671135] [2022-07-13 21:50:39,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:50:39,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:50:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:50:39,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:50:39,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:50:39,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504671135] [2022-07-13 21:50:39,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504671135] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:50:39,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:50:39,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 21:50:39,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30366682] [2022-07-13 21:50:39,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:50:39,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 21:50:39,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:50:39,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 21:50:39,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 21:50:39,559 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 92 [2022-07-13 21:50:39,560 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 77 transitions, 226 flow. Second operand has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 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) [2022-07-13 21:50:39,560 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:50:39,560 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 92 [2022-07-13 21:50:39,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:50:39,743 INFO L129 PetriNetUnfolder]: 401/951 cut-off events. [2022-07-13 21:50:39,743 INFO L130 PetriNetUnfolder]: For 274/297 co-relation queries the response was YES. [2022-07-13 21:50:39,748 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1888 conditions, 951 events. 401/951 cut-off events. For 274/297 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 6142 event pairs, 4 based on Foata normal form. 10/843 useless extension candidates. Maximal degree in co-relation 1842. Up to 257 conditions per place. [2022-07-13 21:50:39,750 INFO L132 encePairwiseOnDemand]: 82/92 looper letters, 25 selfloop transitions, 15 changer transitions 6/109 dead transitions. [2022-07-13 21:50:39,751 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 109 transitions, 386 flow [2022-07-13 21:50:39,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 21:50:39,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-13 21:50:39,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 798 transitions. [2022-07-13 21:50:39,753 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8673913043478261 [2022-07-13 21:50:39,753 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 798 transitions. [2022-07-13 21:50:39,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 798 transitions. [2022-07-13 21:50:39,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:50:39,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 798 transitions. [2022-07-13 21:50:39,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.8) internal successors, (798), 10 states have internal predecessors, (798), 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) [2022-07-13 21:50:39,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 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) [2022-07-13 21:50:39,756 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 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) [2022-07-13 21:50:39,757 INFO L186 Difference]: Start difference. First operand has 105 places, 77 transitions, 226 flow. Second operand 10 states and 798 transitions. [2022-07-13 21:50:39,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 109 transitions, 386 flow [2022-07-13 21:50:39,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 109 transitions, 366 flow, removed 9 selfloop flow, removed 4 redundant places. [2022-07-13 21:50:39,763 INFO L242 Difference]: Finished difference. Result has 107 places, 90 transitions, 315 flow [2022-07-13 21:50:39,763 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=315, PETRI_PLACES=107, PETRI_TRANSITIONS=90} [2022-07-13 21:50:39,764 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, 23 predicate places. [2022-07-13 21:50:39,764 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 90 transitions, 315 flow [2022-07-13 21:50:39,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 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) [2022-07-13 21:50:39,764 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:50:39,764 INFO L200 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] [2022-07-13 21:50:39,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 21:50:39,765 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 21:50:39,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:50:39,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1894440477, now seen corresponding path program 1 times [2022-07-13 21:50:39,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:50:39,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034385314] [2022-07-13 21:50:39,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:50:39,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:50:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:50:39,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:50:39,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:50:39,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034385314] [2022-07-13 21:50:39,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034385314] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:50:39,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:50:39,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 21:50:39,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092662175] [2022-07-13 21:50:39,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:50:39,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 21:50:39,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:50:39,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 21:50:39,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 21:50:39,889 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 92 [2022-07-13 21:50:39,890 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 90 transitions, 315 flow. Second operand has 7 states, 7 states have (on average 76.57142857142857) internal successors, (536), 7 states have internal predecessors, (536), 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) [2022-07-13 21:50:39,890 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:50:39,890 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 92 [2022-07-13 21:50:39,890 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:50:40,114 INFO L129 PetriNetUnfolder]: 381/922 cut-off events. [2022-07-13 21:50:40,114 INFO L130 PetriNetUnfolder]: For 2309/2559 co-relation queries the response was YES. [2022-07-13 21:50:40,118 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3222 conditions, 922 events. 381/922 cut-off events. For 2309/2559 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 5973 event pairs, 0 based on Foata normal form. 66/903 useless extension candidates. Maximal degree in co-relation 3171. Up to 405 conditions per place. [2022-07-13 21:50:40,120 INFO L132 encePairwiseOnDemand]: 82/92 looper letters, 24 selfloop transitions, 28 changer transitions 13/128 dead transitions. [2022-07-13 21:50:40,121 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 128 transitions, 681 flow [2022-07-13 21:50:40,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 21:50:40,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-13 21:50:40,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1036 transitions. [2022-07-13 21:50:40,124 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8662207357859532 [2022-07-13 21:50:40,124 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1036 transitions. [2022-07-13 21:50:40,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1036 transitions. [2022-07-13 21:50:40,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:50:40,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1036 transitions. [2022-07-13 21:50:40,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 79.6923076923077) internal successors, (1036), 13 states have internal predecessors, (1036), 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) [2022-07-13 21:50:40,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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) [2022-07-13 21:50:40,130 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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) [2022-07-13 21:50:40,130 INFO L186 Difference]: Start difference. First operand has 107 places, 90 transitions, 315 flow. Second operand 13 states and 1036 transitions. [2022-07-13 21:50:40,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 128 transitions, 681 flow [2022-07-13 21:50:40,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 128 transitions, 673 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-07-13 21:50:40,139 INFO L242 Difference]: Finished difference. Result has 121 places, 107 transitions, 533 flow [2022-07-13 21:50:40,139 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=533, PETRI_PLACES=121, PETRI_TRANSITIONS=107} [2022-07-13 21:50:40,141 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, 37 predicate places. [2022-07-13 21:50:40,141 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 107 transitions, 533 flow [2022-07-13 21:50:40,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.57142857142857) internal successors, (536), 7 states have internal predecessors, (536), 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) [2022-07-13 21:50:40,141 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:50:40,142 INFO L200 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, 1, 1] [2022-07-13 21:50:40,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 21:50:40,142 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 21:50:40,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:50:40,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1258689636, now seen corresponding path program 1 times [2022-07-13 21:50:40,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:50:40,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538578917] [2022-07-13 21:50:40,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:50:40,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:50:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:50:40,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:50:40,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:50:40,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538578917] [2022-07-13 21:50:40,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538578917] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:50:40,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:50:40,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 21:50:40,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895987188] [2022-07-13 21:50:40,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:50:40,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 21:50:40,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:50:40,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 21:50:40,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 21:50:40,286 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 92 [2022-07-13 21:50:40,286 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 107 transitions, 533 flow. Second operand has 7 states, 7 states have (on average 72.42857142857143) internal successors, (507), 7 states have internal predecessors, (507), 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) [2022-07-13 21:50:40,286 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:50:40,286 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 92 [2022-07-13 21:50:40,287 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:50:40,486 INFO L129 PetriNetUnfolder]: 290/1445 cut-off events. [2022-07-13 21:50:40,486 INFO L130 PetriNetUnfolder]: For 3839/4068 co-relation queries the response was YES. [2022-07-13 21:50:40,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4716 conditions, 1445 events. 290/1445 cut-off events. For 3839/4068 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 14046 event pairs, 10 based on Foata normal form. 15/1392 useless extension candidates. Maximal degree in co-relation 4657. Up to 348 conditions per place. [2022-07-13 21:50:40,497 INFO L132 encePairwiseOnDemand]: 82/92 looper letters, 26 selfloop transitions, 11 changer transitions 7/130 dead transitions. [2022-07-13 21:50:40,498 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 130 transitions, 733 flow [2022-07-13 21:50:40,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 21:50:40,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-13 21:50:40,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 530 transitions. [2022-07-13 21:50:40,499 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8229813664596274 [2022-07-13 21:50:40,500 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 530 transitions. [2022-07-13 21:50:40,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 530 transitions. [2022-07-13 21:50:40,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:50:40,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 530 transitions. [2022-07-13 21:50:40,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 75.71428571428571) internal successors, (530), 7 states have internal predecessors, (530), 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) [2022-07-13 21:50:40,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 92.0) internal successors, (736), 8 states have internal predecessors, (736), 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) [2022-07-13 21:50:40,519 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 92.0) internal successors, (736), 8 states have internal predecessors, (736), 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) [2022-07-13 21:50:40,519 INFO L186 Difference]: Start difference. First operand has 121 places, 107 transitions, 533 flow. Second operand 7 states and 530 transitions. [2022-07-13 21:50:40,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 130 transitions, 733 flow [2022-07-13 21:50:40,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 130 transitions, 673 flow, removed 23 selfloop flow, removed 4 redundant places. [2022-07-13 21:50:40,552 INFO L242 Difference]: Finished difference. Result has 129 places, 114 transitions, 572 flow [2022-07-13 21:50:40,553 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=572, PETRI_PLACES=129, PETRI_TRANSITIONS=114} [2022-07-13 21:50:40,554 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, 45 predicate places. [2022-07-13 21:50:40,556 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 114 transitions, 572 flow [2022-07-13 21:50:40,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 72.42857142857143) internal successors, (507), 7 states have internal predecessors, (507), 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) [2022-07-13 21:50:40,557 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:50:40,557 INFO L200 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, 1, 1] [2022-07-13 21:50:40,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 21:50:40,558 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 21:50:40,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:50:40,558 INFO L85 PathProgramCache]: Analyzing trace with hash 981841986, now seen corresponding path program 2 times [2022-07-13 21:50:40,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:50:40,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247715206] [2022-07-13 21:50:40,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:50:40,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:50:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:50:40,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:50:40,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:50:40,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247715206] [2022-07-13 21:50:40,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247715206] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:50:40,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:50:40,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 21:50:40,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752979345] [2022-07-13 21:50:40,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:50:40,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 21:50:40,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:50:40,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 21:50:40,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-13 21:50:40,678 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 92 [2022-07-13 21:50:40,684 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 114 transitions, 572 flow. Second operand has 8 states, 8 states have (on average 76.5) internal successors, (612), 8 states have internal predecessors, (612), 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) [2022-07-13 21:50:40,684 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:50:40,684 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 92 [2022-07-13 21:50:40,684 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:50:41,003 INFO L129 PetriNetUnfolder]: 440/1488 cut-off events. [2022-07-13 21:50:41,003 INFO L130 PetriNetUnfolder]: For 4167/4859 co-relation queries the response was YES. [2022-07-13 21:50:41,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5448 conditions, 1488 events. 440/1488 cut-off events. For 4167/4859 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 14156 event pairs, 6 based on Foata normal form. 179/1564 useless extension candidates. Maximal degree in co-relation 5418. Up to 229 conditions per place. [2022-07-13 21:50:41,013 INFO L132 encePairwiseOnDemand]: 82/92 looper letters, 22 selfloop transitions, 32 changer transitions 19/143 dead transitions. [2022-07-13 21:50:41,013 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 143 transitions, 904 flow [2022-07-13 21:50:41,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 21:50:41,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-07-13 21:50:41,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1258 transitions. [2022-07-13 21:50:41,016 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8546195652173914 [2022-07-13 21:50:41,016 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1258 transitions. [2022-07-13 21:50:41,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1258 transitions. [2022-07-13 21:50:41,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:50:41,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1258 transitions. [2022-07-13 21:50:41,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 78.625) internal successors, (1258), 16 states have internal predecessors, (1258), 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) [2022-07-13 21:50:41,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 92.0) internal successors, (1564), 17 states have internal predecessors, (1564), 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) [2022-07-13 21:50:41,022 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 92.0) internal successors, (1564), 17 states have internal predecessors, (1564), 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) [2022-07-13 21:50:41,022 INFO L186 Difference]: Start difference. First operand has 129 places, 114 transitions, 572 flow. Second operand 16 states and 1258 transitions. [2022-07-13 21:50:41,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 143 transitions, 904 flow [2022-07-13 21:50:41,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 143 transitions, 875 flow, removed 13 selfloop flow, removed 7 redundant places. [2022-07-13 21:50:41,041 INFO L242 Difference]: Finished difference. Result has 141 places, 115 transitions, 649 flow [2022-07-13 21:50:41,041 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=543, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=649, PETRI_PLACES=141, PETRI_TRANSITIONS=115} [2022-07-13 21:50:41,043 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, 57 predicate places. [2022-07-13 21:50:41,043 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 115 transitions, 649 flow [2022-07-13 21:50:41,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 76.5) internal successors, (612), 8 states have internal predecessors, (612), 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) [2022-07-13 21:50:41,044 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:50:41,044 INFO L200 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, 1, 1, 1, 1, 1, 1] [2022-07-13 21:50:41,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 21:50:41,044 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 21:50:41,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:50:41,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1984361796, now seen corresponding path program 1 times [2022-07-13 21:50:41,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:50:41,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560101223] [2022-07-13 21:50:41,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:50:41,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:50:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:50:41,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:50:41,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:50:41,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560101223] [2022-07-13 21:50:41,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560101223] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:50:41,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:50:41,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 21:50:41,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662325596] [2022-07-13 21:50:41,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:50:41,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 21:50:41,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:50:41,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 21:50:41,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 21:50:41,144 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 92 [2022-07-13 21:50:41,144 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 115 transitions, 649 flow. Second operand has 7 states, 7 states have (on average 70.85714285714286) internal successors, (496), 7 states have internal predecessors, (496), 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) [2022-07-13 21:50:41,144 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:50:41,144 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 92 [2022-07-13 21:50:41,144 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:50:41,356 INFO L129 PetriNetUnfolder]: 294/1524 cut-off events. [2022-07-13 21:50:41,356 INFO L130 PetriNetUnfolder]: For 4195/4273 co-relation queries the response was YES. [2022-07-13 21:50:41,364 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5082 conditions, 1524 events. 294/1524 cut-off events. For 4195/4273 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 16056 event pairs, 0 based on Foata normal form. 1/1445 useless extension candidates. Maximal degree in co-relation 5013. Up to 215 conditions per place. [2022-07-13 21:50:41,366 INFO L132 encePairwiseOnDemand]: 81/92 looper letters, 0 selfloop transitions, 0 changer transitions 138/138 dead transitions. [2022-07-13 21:50:41,366 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 138 transitions, 917 flow [2022-07-13 21:50:41,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 21:50:41,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-07-13 21:50:41,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 580 transitions. [2022-07-13 21:50:41,368 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7880434782608695 [2022-07-13 21:50:41,368 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 580 transitions. [2022-07-13 21:50:41,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 580 transitions. [2022-07-13 21:50:41,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:50:41,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 580 transitions. [2022-07-13 21:50:41,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 72.5) internal successors, (580), 8 states have internal predecessors, (580), 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) [2022-07-13 21:50:41,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 92.0) internal successors, (828), 9 states have internal predecessors, (828), 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) [2022-07-13 21:50:41,372 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 92.0) internal successors, (828), 9 states have internal predecessors, (828), 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) [2022-07-13 21:50:41,372 INFO L186 Difference]: Start difference. First operand has 141 places, 115 transitions, 649 flow. Second operand 8 states and 580 transitions. [2022-07-13 21:50:41,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 138 transitions, 917 flow [2022-07-13 21:50:41,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 138 transitions, 820 flow, removed 15 selfloop flow, removed 15 redundant places. [2022-07-13 21:50:41,407 INFO L242 Difference]: Finished difference. Result has 128 places, 0 transitions, 0 flow [2022-07-13 21:50:41,407 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=128, PETRI_TRANSITIONS=0} [2022-07-13 21:50:41,409 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, 44 predicate places. [2022-07-13 21:50:41,409 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 0 transitions, 0 flow [2022-07-13 21:50:41,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.85714285714286) internal successors, (496), 7 states have internal predecessors, (496), 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) [2022-07-13 21:50:41,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-07-13 21:50:41,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-07-13 21:50:41,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-07-13 21:50:41,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-07-13 21:50:41,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 21:50:41,413 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2022-07-13 21:50:41,415 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-13 21:50:41,415 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 21:50:41,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 09:50:41 BasicIcfg [2022-07-13 21:50:41,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 21:50:41,422 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 21:50:41,422 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 21:50:41,425 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 21:50:41,425 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:50:38" (3/4) ... [2022-07-13 21:50:41,427 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 21:50:41,432 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-07-13 21:50:41,432 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-07-13 21:50:41,432 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-07-13 21:50:41,436 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-07-13 21:50:41,437 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-13 21:50:41,437 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 21:50:41,438 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 21:50:41,467 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 21:50:41,468 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 21:50:41,468 INFO L158 Benchmark]: Toolchain (without parser) took 3840.84ms. Allocated memory was 90.2MB in the beginning and 174.1MB in the end (delta: 83.9MB). Free memory was 46.3MB in the beginning and 97.8MB in the end (delta: -51.5MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2022-07-13 21:50:41,469 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 90.2MB. Free memory is still 64.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 21:50:41,469 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.29ms. Allocated memory is still 90.2MB. Free memory was 46.1MB in the beginning and 49.8MB in the end (delta: -3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 21:50:41,469 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.76ms. Allocated memory is still 90.2MB. Free memory was 49.8MB in the beginning and 47.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 21:50:41,469 INFO L158 Benchmark]: Boogie Preprocessor took 42.54ms. Allocated memory is still 90.2MB. Free memory was 47.7MB in the beginning and 46.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 21:50:41,470 INFO L158 Benchmark]: RCFGBuilder took 389.82ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 46.4MB in the beginning and 94.0MB in the end (delta: -47.6MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2022-07-13 21:50:41,470 INFO L158 Benchmark]: TraceAbstraction took 2934.41ms. Allocated memory was 119.5MB in the beginning and 174.1MB in the end (delta: 54.5MB). Free memory was 93.4MB in the beginning and 99.9MB in the end (delta: -6.6MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2022-07-13 21:50:41,470 INFO L158 Benchmark]: Witness Printer took 45.37ms. Allocated memory is still 174.1MB. Free memory was 99.9MB in the beginning and 97.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 21:50:41,471 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 90.2MB. Free memory is still 64.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.29ms. Allocated memory is still 90.2MB. Free memory was 46.1MB in the beginning and 49.8MB in the end (delta: -3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.76ms. Allocated memory is still 90.2MB. Free memory was 49.8MB in the beginning and 47.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.54ms. Allocated memory is still 90.2MB. Free memory was 47.7MB in the beginning and 46.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 389.82ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 46.4MB in the beginning and 94.0MB in the end (delta: -47.6MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2934.41ms. Allocated memory was 119.5MB in the beginning and 174.1MB in the end (delta: 54.5MB). Free memory was 93.4MB in the beginning and 99.9MB in the end (delta: -6.6MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * Witness Printer took 45.37ms. Allocated memory is still 174.1MB. Free memory was 99.9MB in the beginning and 97.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 115 locations, 4 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: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 253 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 253 mSDsluCounter, 296 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 299 mSDsCounter, 92 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 399 IncrementalHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 92 mSolverCounterUnsat, 67 mSDtfsCounter, 399 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=649occurred in iteration=5, InterpolantAutomatonStates: 67, 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, 0.6s InterpolantComputationTime, 369 NumberOfCodeBlocks, 369 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 363 ConstructedInterpolants, 0 QuantifiedInterpolants, 1759 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-13 21:50:41,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE