./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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/thin002_pso.oepc_pso.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 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 02:52:05,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 02:52:05,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 02:52:05,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 02:52:05,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 02:52:05,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 02:52:05,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 02:52:05,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 02:52:05,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 02:52:05,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 02:52:05,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 02:52:05,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 02:52:05,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 02:52:05,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 02:52:05,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 02:52:05,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 02:52:05,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 02:52:05,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 02:52:05,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 02:52:05,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 02:52:05,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 02:52:05,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 02:52:05,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 02:52:05,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 02:52:05,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 02:52:05,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 02:52:05,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 02:52:05,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 02:52:05,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 02:52:05,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 02:52:05,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 02:52:05,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 02:52:05,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 02:52:05,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 02:52:05,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 02:52:05,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 02:52:05,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 02:52:05,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 02:52:05,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 02:52:05,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 02:52:05,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 02:52:05,851 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 02:52:05,876 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 02:52:05,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 02:52:05,877 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 02:52:05,877 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 02:52:05,878 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 02:52:05,878 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 02:52:05,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 02:52:05,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 02:52:05,879 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 02:52:05,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 02:52:05,880 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 02:52:05,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 02:52:05,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 02:52:05,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 02:52:05,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 02:52:05,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 02:52:05,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 02:52:05,881 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 02:52:05,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 02:52:05,881 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 02:52:05,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 02:52:05,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 02:52:05,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 02:52:05,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 02:52:05,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 02:52:05,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 02:52:05,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 02:52:05,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 02:52:05,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 02:52:05,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 02:52:05,883 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 02:52:05,883 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 02:52:05,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 02:52:05,883 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f [2021-12-28 02:52:06,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 02:52:06,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 02:52:06,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 02:52:06,178 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 02:52:06,178 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 02:52:06,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2021-12-28 02:52:06,222 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc076d5dd/042f703f22e6490d8acd8a3f6d1bd14f/FLAGd7515044c [2021-12-28 02:52:06,663 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 02:52:06,665 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2021-12-28 02:52:06,681 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc076d5dd/042f703f22e6490d8acd8a3f6d1bd14f/FLAGd7515044c [2021-12-28 02:52:06,695 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc076d5dd/042f703f22e6490d8acd8a3f6d1bd14f [2021-12-28 02:52:06,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 02:52:06,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 02:52:06,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 02:52:06,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 02:52:06,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 02:52:06,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 02:52:06" (1/1) ... [2021-12-28 02:52:06,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78125d0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:52:06, skipping insertion in model container [2021-12-28 02:52:06,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 02:52:06" (1/1) ... [2021-12-28 02:52:06,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 02:52:06,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 02:52:06,934 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/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2021-12-28 02:52:07,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 02:52:07,081 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 02:52:07,094 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/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2021-12-28 02:52:07,136 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 02:52:07,168 INFO L208 MainTranslator]: Completed translation [2021-12-28 02:52:07,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:52:07 WrapperNode [2021-12-28 02:52:07,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 02:52:07,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 02:52:07,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 02:52:07,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 02:52:07,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:52:07" (1/1) ... [2021-12-28 02:52:07,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:52:07" (1/1) ... [2021-12-28 02:52:07,223 INFO L137 Inliner]: procedures = 177, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2021-12-28 02:52:07,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 02:52:07,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 02:52:07,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 02:52:07,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 02:52:07,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:52:07" (1/1) ... [2021-12-28 02:52:07,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:52:07" (1/1) ... [2021-12-28 02:52:07,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:52:07" (1/1) ... [2021-12-28 02:52:07,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:52:07" (1/1) ... [2021-12-28 02:52:07,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:52:07" (1/1) ... [2021-12-28 02:52:07,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:52:07" (1/1) ... [2021-12-28 02:52:07,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:52:07" (1/1) ... [2021-12-28 02:52:07,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 02:52:07,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 02:52:07,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 02:52:07,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 02:52:07,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:52:07" (1/1) ... [2021-12-28 02:52:07,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 02:52:07,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 02:52:07,329 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) [2021-12-28 02:52:07,390 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 [2021-12-28 02:52:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 02:52:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-28 02:52:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 02:52:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 02:52:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 02:52:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-12-28 02:52:07,419 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-12-28 02:52:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-12-28 02:52:07,419 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-12-28 02:52:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-12-28 02:52:07,419 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-12-28 02:52:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-12-28 02:52:07,420 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-12-28 02:52:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 02:52:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-28 02:52:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 02:52:07,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 02:52:07,421 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-28 02:52:07,532 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 02:52:07,533 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 02:52:07,682 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 02:52:07,688 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 02:52:07,688 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 02:52:07,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 02:52:07 BoogieIcfgContainer [2021-12-28 02:52:07,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 02:52:07,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 02:52:07,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 02:52:07,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 02:52:07,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 02:52:06" (1/3) ... [2021-12-28 02:52:07,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f0a9ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 02:52:07, skipping insertion in model container [2021-12-28 02:52:07,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:52:07" (2/3) ... [2021-12-28 02:52:07,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f0a9ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 02:52:07, skipping insertion in model container [2021-12-28 02:52:07,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 02:52:07" (3/3) ... [2021-12-28 02:52:07,695 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2021-12-28 02:52:07,698 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-28 02:52:07,698 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 02:52:07,698 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 02:52:07,698 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-28 02:52:07,723 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,723 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,724 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,724 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,724 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,724 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,724 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,724 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,725 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,725 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,725 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,725 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,726 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,726 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,726 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,726 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,726 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,726 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,727 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,727 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,727 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,727 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,727 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,728 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,728 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,728 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,728 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,728 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,728 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,729 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,729 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,729 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,729 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,729 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,730 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,730 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,730 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,730 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,730 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,731 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,731 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,731 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,731 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,731 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,732 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,732 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,732 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,732 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,734 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,735 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,735 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,735 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,737 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,737 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,737 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,737 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,738 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,738 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,738 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,738 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,739 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,739 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,739 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,739 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:52:07,740 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-28 02:52:07,796 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 02:52:07,802 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 02:52:07,803 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-12-28 02:52:07,818 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 122 places, 111 transitions, 242 flow [2021-12-28 02:52:07,872 INFO L129 PetriNetUnfolder]: 2/107 cut-off events. [2021-12-28 02:52:07,872 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-28 02:52:07,875 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 107 events. 2/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 85. Up to 2 conditions per place. [2021-12-28 02:52:07,875 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 111 transitions, 242 flow [2021-12-28 02:52:07,879 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 91 transitions, 194 flow [2021-12-28 02:52:07,901 INFO L129 PetriNetUnfolder]: 1/90 cut-off events. [2021-12-28 02:52:07,902 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-28 02:52:07,902 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:52:07,903 INFO L254 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] [2021-12-28 02:52:07,904 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 02:52:07,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:52:07,911 INFO L85 PathProgramCache]: Analyzing trace with hash -535922452, now seen corresponding path program 1 times [2021-12-28 02:52:07,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:52:07,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659929815] [2021-12-28 02:52:07,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:52:07,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:52:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:52:08,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:52:08,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:52:08,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659929815] [2021-12-28 02:52:08,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659929815] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:52:08,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:52:08,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 02:52:08,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968929700] [2021-12-28 02:52:08,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:52:08,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 02:52:08,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:52:08,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 02:52:08,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 02:52:08,393 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 111 [2021-12-28 02:52:08,399 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 91 transitions, 194 flow. Second operand has 6 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 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) [2021-12-28 02:52:08,400 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:52:08,400 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 111 [2021-12-28 02:52:08,401 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:52:08,684 INFO L129 PetriNetUnfolder]: 287/787 cut-off events. [2021-12-28 02:52:08,684 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2021-12-28 02:52:08,687 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1284 conditions, 787 events. 287/787 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4441 event pairs, 98 based on Foata normal form. 18/782 useless extension candidates. Maximal degree in co-relation 1242. Up to 276 conditions per place. [2021-12-28 02:52:08,690 INFO L132 encePairwiseOnDemand]: 101/111 looper letters, 20 selfloop transitions, 5 changer transitions 31/128 dead transitions. [2021-12-28 02:52:08,690 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 128 transitions, 389 flow [2021-12-28 02:52:08,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 02:52:08,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-28 02:52:08,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 861 transitions. [2021-12-28 02:52:08,702 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8618618618618619 [2021-12-28 02:52:08,702 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 861 transitions. [2021-12-28 02:52:08,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 861 transitions. [2021-12-28 02:52:08,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:52:08,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 861 transitions. [2021-12-28 02:52:08,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 95.66666666666667) internal successors, (861), 9 states have internal predecessors, (861), 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) [2021-12-28 02:52:08,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 111.0) internal successors, (1110), 10 states have internal predecessors, (1110), 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) [2021-12-28 02:52:08,722 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 111.0) internal successors, (1110), 10 states have internal predecessors, (1110), 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) [2021-12-28 02:52:08,723 INFO L186 Difference]: Start difference. First operand has 103 places, 91 transitions, 194 flow. Second operand 9 states and 861 transitions. [2021-12-28 02:52:08,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 128 transitions, 389 flow [2021-12-28 02:52:08,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 128 transitions, 382 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-28 02:52:08,731 INFO L242 Difference]: Finished difference. Result has 114 places, 94 transitions, 257 flow [2021-12-28 02:52:08,732 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=257, PETRI_PLACES=114, PETRI_TRANSITIONS=94} [2021-12-28 02:52:08,735 INFO L334 CegarLoopForPetriNet]: 103 programPoint places, 11 predicate places. [2021-12-28 02:52:08,735 INFO L470 AbstractCegarLoop]: Abstraction has has 114 places, 94 transitions, 257 flow [2021-12-28 02:52:08,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 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) [2021-12-28 02:52:08,736 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:52:08,736 INFO L254 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] [2021-12-28 02:52:08,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 02:52:08,737 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 02:52:08,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:52:08,738 INFO L85 PathProgramCache]: Analyzing trace with hash 161379723, now seen corresponding path program 1 times [2021-12-28 02:52:08,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:52:08,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153033604] [2021-12-28 02:52:08,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:52:08,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:52:08,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:52:08,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:52:08,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:52:08,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153033604] [2021-12-28 02:52:08,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153033604] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:52:08,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:52:08,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 02:52:08,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971212912] [2021-12-28 02:52:08,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:52:08,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 02:52:08,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:52:08,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 02:52:08,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-28 02:52:08,894 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 111 [2021-12-28 02:52:08,895 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 94 transitions, 257 flow. Second operand has 7 states, 7 states have (on average 91.14285714285714) internal successors, (638), 7 states have internal predecessors, (638), 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) [2021-12-28 02:52:08,895 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:52:08,895 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 111 [2021-12-28 02:52:08,895 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:52:09,058 INFO L129 PetriNetUnfolder]: 187/527 cut-off events. [2021-12-28 02:52:09,058 INFO L130 PetriNetUnfolder]: For 1298/1523 co-relation queries the response was YES. [2021-12-28 02:52:09,060 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1821 conditions, 527 events. 187/527 cut-off events. For 1298/1523 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2394 event pairs, 13 based on Foata normal form. 14/516 useless extension candidates. Maximal degree in co-relation 1774. Up to 225 conditions per place. [2021-12-28 02:52:09,062 INFO L132 encePairwiseOnDemand]: 104/111 looper letters, 21 selfloop transitions, 4 changer transitions 28/125 dead transitions. [2021-12-28 02:52:09,062 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 125 transitions, 635 flow [2021-12-28 02:52:09,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-28 02:52:09,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-28 02:52:09,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 941 transitions. [2021-12-28 02:52:09,064 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8477477477477477 [2021-12-28 02:52:09,064 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 941 transitions. [2021-12-28 02:52:09,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 941 transitions. [2021-12-28 02:52:09,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:52:09,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 941 transitions. [2021-12-28 02:52:09,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 94.1) internal successors, (941), 10 states have internal predecessors, (941), 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) [2021-12-28 02:52:09,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 111.0) internal successors, (1221), 11 states have internal predecessors, (1221), 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) [2021-12-28 02:52:09,072 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 111.0) internal successors, (1221), 11 states have internal predecessors, (1221), 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) [2021-12-28 02:52:09,072 INFO L186 Difference]: Start difference. First operand has 114 places, 94 transitions, 257 flow. Second operand 10 states and 941 transitions. [2021-12-28 02:52:09,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 125 transitions, 635 flow [2021-12-28 02:52:09,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 125 transitions, 616 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-12-28 02:52:09,080 INFO L242 Difference]: Finished difference. Result has 120 places, 94 transitions, 271 flow [2021-12-28 02:52:09,080 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=271, PETRI_PLACES=120, PETRI_TRANSITIONS=94} [2021-12-28 02:52:09,081 INFO L334 CegarLoopForPetriNet]: 103 programPoint places, 17 predicate places. [2021-12-28 02:52:09,081 INFO L470 AbstractCegarLoop]: Abstraction has has 120 places, 94 transitions, 271 flow [2021-12-28 02:52:09,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 91.14285714285714) internal successors, (638), 7 states have internal predecessors, (638), 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) [2021-12-28 02:52:09,082 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:52:09,082 INFO L254 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] [2021-12-28 02:52:09,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 02:52:09,082 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 02:52:09,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:52:09,082 INFO L85 PathProgramCache]: Analyzing trace with hash -632887251, now seen corresponding path program 1 times [2021-12-28 02:52:09,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:52:09,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516736582] [2021-12-28 02:52:09,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:52:09,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:52:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:52:09,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:52:09,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:52:09,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516736582] [2021-12-28 02:52:09,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516736582] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:52:09,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:52:09,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 02:52:09,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328050048] [2021-12-28 02:52:09,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:52:09,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 02:52:09,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:52:09,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 02:52:09,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 02:52:09,212 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 111 [2021-12-28 02:52:09,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 94 transitions, 271 flow. Second operand has 7 states, 7 states have (on average 89.28571428571429) internal successors, (625), 7 states have internal predecessors, (625), 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) [2021-12-28 02:52:09,213 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:52:09,213 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 111 [2021-12-28 02:52:09,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:52:09,585 INFO L129 PetriNetUnfolder]: 282/759 cut-off events. [2021-12-28 02:52:09,585 INFO L130 PetriNetUnfolder]: For 2032/3004 co-relation queries the response was YES. [2021-12-28 02:52:09,590 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2615 conditions, 759 events. 282/759 cut-off events. For 2032/3004 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3995 event pairs, 8 based on Foata normal form. 23/752 useless extension candidates. Maximal degree in co-relation 2561. Up to 284 conditions per place. [2021-12-28 02:52:09,595 INFO L132 encePairwiseOnDemand]: 100/111 looper letters, 29 selfloop transitions, 13 changer transitions 50/162 dead transitions. [2021-12-28 02:52:09,595 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 162 transitions, 984 flow [2021-12-28 02:52:09,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-28 02:52:09,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-12-28 02:52:09,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1572 transitions. [2021-12-28 02:52:09,599 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8330683624801272 [2021-12-28 02:52:09,599 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1572 transitions. [2021-12-28 02:52:09,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1572 transitions. [2021-12-28 02:52:09,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:52:09,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1572 transitions. [2021-12-28 02:52:09,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 92.47058823529412) internal successors, (1572), 17 states have internal predecessors, (1572), 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) [2021-12-28 02:52:09,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 111.0) internal successors, (1998), 18 states have internal predecessors, (1998), 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) [2021-12-28 02:52:09,606 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 111.0) internal successors, (1998), 18 states have internal predecessors, (1998), 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) [2021-12-28 02:52:09,606 INFO L186 Difference]: Start difference. First operand has 120 places, 94 transitions, 271 flow. Second operand 17 states and 1572 transitions. [2021-12-28 02:52:09,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 162 transitions, 984 flow [2021-12-28 02:52:09,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 162 transitions, 918 flow, removed 28 selfloop flow, removed 9 redundant places. [2021-12-28 02:52:09,620 INFO L242 Difference]: Finished difference. Result has 136 places, 101 transitions, 432 flow [2021-12-28 02:52:09,620 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=432, PETRI_PLACES=136, PETRI_TRANSITIONS=101} [2021-12-28 02:52:09,621 INFO L334 CegarLoopForPetriNet]: 103 programPoint places, 33 predicate places. [2021-12-28 02:52:09,622 INFO L470 AbstractCegarLoop]: Abstraction has has 136 places, 101 transitions, 432 flow [2021-12-28 02:52:09,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 89.28571428571429) internal successors, (625), 7 states have internal predecessors, (625), 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) [2021-12-28 02:52:09,622 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:52:09,622 INFO L254 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, 1, 1] [2021-12-28 02:52:09,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 02:52:09,623 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 02:52:09,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:52:09,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1387759690, now seen corresponding path program 1 times [2021-12-28 02:52:09,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:52:09,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382556188] [2021-12-28 02:52:09,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:52:09,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:52:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:52:09,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:52:09,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:52:09,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382556188] [2021-12-28 02:52:09,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382556188] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:52:09,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:52:09,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 02:52:09,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797930001] [2021-12-28 02:52:09,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:52:09,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 02:52:09,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:52:09,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 02:52:09,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-28 02:52:09,750 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 111 [2021-12-28 02:52:09,751 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 101 transitions, 432 flow. Second operand has 8 states, 8 states have (on average 89.125) internal successors, (713), 8 states have internal predecessors, (713), 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) [2021-12-28 02:52:09,751 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:52:09,751 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 111 [2021-12-28 02:52:09,751 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:52:09,891 INFO L129 PetriNetUnfolder]: 148/527 cut-off events. [2021-12-28 02:52:09,892 INFO L130 PetriNetUnfolder]: For 6385/7459 co-relation queries the response was YES. [2021-12-28 02:52:09,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2679 conditions, 527 events. 148/527 cut-off events. For 6385/7459 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2715 event pairs, 14 based on Foata normal form. 15/515 useless extension candidates. Maximal degree in co-relation 2615. Up to 170 conditions per place. [2021-12-28 02:52:09,906 INFO L132 encePairwiseOnDemand]: 102/111 looper letters, 23 selfloop transitions, 5 changer transitions 34/132 dead transitions. [2021-12-28 02:52:09,906 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 132 transitions, 1117 flow [2021-12-28 02:52:09,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 02:52:09,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-28 02:52:09,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1011 transitions. [2021-12-28 02:52:09,908 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.828009828009828 [2021-12-28 02:52:09,909 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1011 transitions. [2021-12-28 02:52:09,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1011 transitions. [2021-12-28 02:52:09,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:52:09,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1011 transitions. [2021-12-28 02:52:09,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 91.9090909090909) internal successors, (1011), 11 states have internal predecessors, (1011), 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) [2021-12-28 02:52:09,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 111.0) internal successors, (1332), 12 states have internal predecessors, (1332), 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) [2021-12-28 02:52:09,912 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 111.0) internal successors, (1332), 12 states have internal predecessors, (1332), 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) [2021-12-28 02:52:09,913 INFO L186 Difference]: Start difference. First operand has 136 places, 101 transitions, 432 flow. Second operand 11 states and 1011 transitions. [2021-12-28 02:52:09,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 132 transitions, 1117 flow [2021-12-28 02:52:09,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 132 transitions, 784 flow, removed 163 selfloop flow, removed 13 redundant places. [2021-12-28 02:52:09,935 INFO L242 Difference]: Finished difference. Result has 129 places, 93 transitions, 314 flow [2021-12-28 02:52:09,935 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=314, PETRI_PLACES=129, PETRI_TRANSITIONS=93} [2021-12-28 02:52:09,936 INFO L334 CegarLoopForPetriNet]: 103 programPoint places, 26 predicate places. [2021-12-28 02:52:09,936 INFO L470 AbstractCegarLoop]: Abstraction has has 129 places, 93 transitions, 314 flow [2021-12-28 02:52:09,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 89.125) internal successors, (713), 8 states have internal predecessors, (713), 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) [2021-12-28 02:52:09,936 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:52:09,937 INFO L254 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, 1, 1, 1] [2021-12-28 02:52:09,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 02:52:09,937 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 02:52:09,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:52:09,937 INFO L85 PathProgramCache]: Analyzing trace with hash 644322064, now seen corresponding path program 1 times [2021-12-28 02:52:09,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:52:09,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855929192] [2021-12-28 02:52:09,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:52:09,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:52:09,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:52:10,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:52:10,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:52:10,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855929192] [2021-12-28 02:52:10,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855929192] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:52:10,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:52:10,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 02:52:10,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983542064] [2021-12-28 02:52:10,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:52:10,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 02:52:10,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:52:10,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 02:52:10,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-28 02:52:10,081 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 111 [2021-12-28 02:52:10,082 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 93 transitions, 314 flow. Second operand has 7 states, 7 states have (on average 91.28571428571429) internal successors, (639), 7 states have internal predecessors, (639), 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) [2021-12-28 02:52:10,082 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:52:10,082 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 111 [2021-12-28 02:52:10,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:52:10,201 INFO L129 PetriNetUnfolder]: 45/258 cut-off events. [2021-12-28 02:52:10,202 INFO L130 PetriNetUnfolder]: For 719/859 co-relation queries the response was YES. [2021-12-28 02:52:10,203 INFO L84 FinitePrefix]: Finished finitePrefix Result has 824 conditions, 258 events. 45/258 cut-off events. For 719/859 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 914 event pairs, 5 based on Foata normal form. 4/250 useless extension candidates. Maximal degree in co-relation 785. Up to 63 conditions per place. [2021-12-28 02:52:10,204 INFO L132 encePairwiseOnDemand]: 104/111 looper letters, 22 selfloop transitions, 4 changer transitions 16/114 dead transitions. [2021-12-28 02:52:10,204 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 114 transitions, 624 flow [2021-12-28 02:52:10,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-28 02:52:10,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-28 02:52:10,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 931 transitions. [2021-12-28 02:52:10,207 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8387387387387387 [2021-12-28 02:52:10,207 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 931 transitions. [2021-12-28 02:52:10,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 931 transitions. [2021-12-28 02:52:10,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:52:10,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 931 transitions. [2021-12-28 02:52:10,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.1) internal successors, (931), 10 states have internal predecessors, (931), 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) [2021-12-28 02:52:10,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 111.0) internal successors, (1221), 11 states have internal predecessors, (1221), 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) [2021-12-28 02:52:10,211 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 111.0) internal successors, (1221), 11 states have internal predecessors, (1221), 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) [2021-12-28 02:52:10,211 INFO L186 Difference]: Start difference. First operand has 129 places, 93 transitions, 314 flow. Second operand 10 states and 931 transitions. [2021-12-28 02:52:10,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 114 transitions, 624 flow [2021-12-28 02:52:10,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 114 transitions, 490 flow, removed 50 selfloop flow, removed 17 redundant places. [2021-12-28 02:52:10,216 INFO L242 Difference]: Finished difference. Result has 122 places, 93 transitions, 275 flow [2021-12-28 02:52:10,216 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=275, PETRI_PLACES=122, PETRI_TRANSITIONS=93} [2021-12-28 02:52:10,218 INFO L334 CegarLoopForPetriNet]: 103 programPoint places, 19 predicate places. [2021-12-28 02:52:10,218 INFO L470 AbstractCegarLoop]: Abstraction has has 122 places, 93 transitions, 275 flow [2021-12-28 02:52:10,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 91.28571428571429) internal successors, (639), 7 states have internal predecessors, (639), 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) [2021-12-28 02:52:10,219 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:52:10,219 INFO L254 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, 1, 1, 1, 1, 1] [2021-12-28 02:52:10,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 02:52:10,219 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 02:52:10,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:52:10,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1288274173, now seen corresponding path program 1 times [2021-12-28 02:52:10,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:52:10,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666695524] [2021-12-28 02:52:10,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:52:10,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:52:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:52:10,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:52:10,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:52:10,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666695524] [2021-12-28 02:52:10,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666695524] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:52:10,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:52:10,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 02:52:10,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445369996] [2021-12-28 02:52:10,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:52:10,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 02:52:10,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:52:10,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 02:52:10,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-28 02:52:10,337 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 111 [2021-12-28 02:52:10,338 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 93 transitions, 275 flow. Second operand has 7 states, 7 states have (on average 91.42857142857143) internal successors, (640), 7 states have internal predecessors, (640), 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) [2021-12-28 02:52:10,338 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:52:10,338 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 111 [2021-12-28 02:52:10,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:52:10,426 INFO L129 PetriNetUnfolder]: 29/235 cut-off events. [2021-12-28 02:52:10,426 INFO L130 PetriNetUnfolder]: For 288/328 co-relation queries the response was YES. [2021-12-28 02:52:10,427 INFO L84 FinitePrefix]: Finished finitePrefix Result has 556 conditions, 235 events. 29/235 cut-off events. For 288/328 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 806 event pairs, 11 based on Foata normal form. 2/227 useless extension candidates. Maximal degree in co-relation 535. Up to 44 conditions per place. [2021-12-28 02:52:10,428 INFO L132 encePairwiseOnDemand]: 105/111 looper letters, 24 selfloop transitions, 3 changer transitions 10/109 dead transitions. [2021-12-28 02:52:10,428 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 109 transitions, 470 flow [2021-12-28 02:52:10,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 02:52:10,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-28 02:52:10,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 837 transitions. [2021-12-28 02:52:10,430 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8378378378378378 [2021-12-28 02:52:10,430 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 837 transitions. [2021-12-28 02:52:10,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 837 transitions. [2021-12-28 02:52:10,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:52:10,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 837 transitions. [2021-12-28 02:52:10,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 93.0) internal successors, (837), 9 states have internal predecessors, (837), 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) [2021-12-28 02:52:10,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 111.0) internal successors, (1110), 10 states have internal predecessors, (1110), 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) [2021-12-28 02:52:10,433 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 111.0) internal successors, (1110), 10 states have internal predecessors, (1110), 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) [2021-12-28 02:52:10,433 INFO L186 Difference]: Start difference. First operand has 122 places, 93 transitions, 275 flow. Second operand 9 states and 837 transitions. [2021-12-28 02:52:10,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 109 transitions, 470 flow [2021-12-28 02:52:10,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 109 transitions, 432 flow, removed 14 selfloop flow, removed 9 redundant places. [2021-12-28 02:52:10,435 INFO L242 Difference]: Finished difference. Result has 122 places, 93 transitions, 278 flow [2021-12-28 02:52:10,436 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=278, PETRI_PLACES=122, PETRI_TRANSITIONS=93} [2021-12-28 02:52:10,438 INFO L334 CegarLoopForPetriNet]: 103 programPoint places, 19 predicate places. [2021-12-28 02:52:10,438 INFO L470 AbstractCegarLoop]: Abstraction has has 122 places, 93 transitions, 278 flow [2021-12-28 02:52:10,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 91.42857142857143) internal successors, (640), 7 states have internal predecessors, (640), 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) [2021-12-28 02:52:10,438 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:52:10,438 INFO L254 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 02:52:10,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 02:52:10,438 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 02:52:10,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:52:10,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1788436744, now seen corresponding path program 1 times [2021-12-28 02:52:10,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:52:10,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736343765] [2021-12-28 02:52:10,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:52:10,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:52:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:52:10,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:52:10,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:52:10,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736343765] [2021-12-28 02:52:10,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736343765] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:52:10,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:52:10,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 02:52:10,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974901039] [2021-12-28 02:52:10,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:52:10,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 02:52:10,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:52:10,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 02:52:10,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-28 02:52:10,543 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 111 [2021-12-28 02:52:10,543 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 93 transitions, 278 flow. Second operand has 8 states, 8 states have (on average 89.375) internal successors, (715), 8 states have internal predecessors, (715), 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) [2021-12-28 02:52:10,543 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:52:10,543 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 111 [2021-12-28 02:52:10,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:52:10,633 INFO L129 PetriNetUnfolder]: 33/233 cut-off events. [2021-12-28 02:52:10,633 INFO L130 PetriNetUnfolder]: For 322/425 co-relation queries the response was YES. [2021-12-28 02:52:10,634 INFO L84 FinitePrefix]: Finished finitePrefix Result has 597 conditions, 233 events. 33/233 cut-off events. For 322/425 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 797 event pairs, 14 based on Foata normal form. 4/225 useless extension candidates. Maximal degree in co-relation 575. Up to 54 conditions per place. [2021-12-28 02:52:10,635 INFO L132 encePairwiseOnDemand]: 103/111 looper letters, 20 selfloop transitions, 4 changer transitions 13/107 dead transitions. [2021-12-28 02:52:10,635 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 107 transitions, 449 flow [2021-12-28 02:52:10,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-28 02:52:10,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-28 02:52:10,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 906 transitions. [2021-12-28 02:52:10,637 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8162162162162162 [2021-12-28 02:52:10,637 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 906 transitions. [2021-12-28 02:52:10,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 906 transitions. [2021-12-28 02:52:10,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:52:10,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 906 transitions. [2021-12-28 02:52:10,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 90.6) internal successors, (906), 10 states have internal predecessors, (906), 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) [2021-12-28 02:52:10,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 111.0) internal successors, (1221), 11 states have internal predecessors, (1221), 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) [2021-12-28 02:52:10,641 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 111.0) internal successors, (1221), 11 states have internal predecessors, (1221), 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) [2021-12-28 02:52:10,641 INFO L186 Difference]: Start difference. First operand has 122 places, 93 transitions, 278 flow. Second operand 10 states and 906 transitions. [2021-12-28 02:52:10,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 107 transitions, 449 flow [2021-12-28 02:52:10,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 107 transitions, 399 flow, removed 21 selfloop flow, removed 8 redundant places. [2021-12-28 02:52:10,644 INFO L242 Difference]: Finished difference. Result has 125 places, 92 transitions, 279 flow [2021-12-28 02:52:10,644 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=279, PETRI_PLACES=125, PETRI_TRANSITIONS=92} [2021-12-28 02:52:10,645 INFO L334 CegarLoopForPetriNet]: 103 programPoint places, 22 predicate places. [2021-12-28 02:52:10,645 INFO L470 AbstractCegarLoop]: Abstraction has has 125 places, 92 transitions, 279 flow [2021-12-28 02:52:10,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 89.375) internal successors, (715), 8 states have internal predecessors, (715), 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) [2021-12-28 02:52:10,645 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:52:10,645 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 02:52:10,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 02:52:10,646 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 02:52:10,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:52:10,647 INFO L85 PathProgramCache]: Analyzing trace with hash 12634660, now seen corresponding path program 1 times [2021-12-28 02:52:10,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:52:10,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473082951] [2021-12-28 02:52:10,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:52:10,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:52:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:52:10,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:52:10,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:52:10,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473082951] [2021-12-28 02:52:10,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473082951] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:52:10,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:52:10,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 02:52:10,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524552320] [2021-12-28 02:52:10,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:52:10,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 02:52:10,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:52:10,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 02:52:10,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-28 02:52:10,756 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 111 [2021-12-28 02:52:10,757 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 92 transitions, 279 flow. Second operand has 8 states, 8 states have (on average 89.375) internal successors, (715), 8 states have internal predecessors, (715), 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) [2021-12-28 02:52:10,757 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:52:10,757 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 111 [2021-12-28 02:52:10,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:52:10,861 INFO L129 PetriNetUnfolder]: 18/211 cut-off events. [2021-12-28 02:52:10,861 INFO L130 PetriNetUnfolder]: For 270/307 co-relation queries the response was YES. [2021-12-28 02:52:10,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 211 events. 18/211 cut-off events. For 270/307 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 725 event pairs, 4 based on Foata normal form. 4/208 useless extension candidates. Maximal degree in co-relation 436. Up to 25 conditions per place. [2021-12-28 02:52:10,863 INFO L132 encePairwiseOnDemand]: 102/111 looper letters, 18 selfloop transitions, 5 changer transitions 18/111 dead transitions. [2021-12-28 02:52:10,863 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 111 transitions, 497 flow [2021-12-28 02:52:10,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 02:52:10,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-28 02:52:10,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 998 transitions. [2021-12-28 02:52:10,865 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8173628173628174 [2021-12-28 02:52:10,865 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 998 transitions. [2021-12-28 02:52:10,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 998 transitions. [2021-12-28 02:52:10,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:52:10,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 998 transitions. [2021-12-28 02:52:10,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 90.72727272727273) internal successors, (998), 11 states have internal predecessors, (998), 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) [2021-12-28 02:52:10,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 111.0) internal successors, (1332), 12 states have internal predecessors, (1332), 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) [2021-12-28 02:52:10,868 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 111.0) internal successors, (1332), 12 states have internal predecessors, (1332), 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) [2021-12-28 02:52:10,868 INFO L186 Difference]: Start difference. First operand has 125 places, 92 transitions, 279 flow. Second operand 11 states and 998 transitions. [2021-12-28 02:52:10,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 111 transitions, 497 flow [2021-12-28 02:52:10,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 111 transitions, 379 flow, removed 50 selfloop flow, removed 14 redundant places. [2021-12-28 02:52:10,870 INFO L242 Difference]: Finished difference. Result has 123 places, 90 transitions, 248 flow [2021-12-28 02:52:10,870 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=248, PETRI_PLACES=123, PETRI_TRANSITIONS=90} [2021-12-28 02:52:10,872 INFO L334 CegarLoopForPetriNet]: 103 programPoint places, 20 predicate places. [2021-12-28 02:52:10,872 INFO L470 AbstractCegarLoop]: Abstraction has has 123 places, 90 transitions, 248 flow [2021-12-28 02:52:10,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 89.375) internal successors, (715), 8 states have internal predecessors, (715), 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) [2021-12-28 02:52:10,872 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:52:10,873 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 02:52:10,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 02:52:10,873 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-28 02:52:10,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:52:10,873 INFO L85 PathProgramCache]: Analyzing trace with hash -561098704, now seen corresponding path program 1 times [2021-12-28 02:52:10,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:52:10,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471715278] [2021-12-28 02:52:10,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:52:10,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:52:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:52:10,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:52:10,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:52:10,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471715278] [2021-12-28 02:52:10,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471715278] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:52:10,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:52:10,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 02:52:10,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584120567] [2021-12-28 02:52:10,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:52:10,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 02:52:10,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:52:10,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 02:52:10,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 02:52:10,949 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 111 [2021-12-28 02:52:10,950 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 90 transitions, 248 flow. Second operand has 7 states, 7 states have (on average 94.85714285714286) internal successors, (664), 7 states have internal predecessors, (664), 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) [2021-12-28 02:52:10,950 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:52:10,950 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 111 [2021-12-28 02:52:10,950 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:52:11,031 INFO L129 PetriNetUnfolder]: 6/116 cut-off events. [2021-12-28 02:52:11,031 INFO L130 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2021-12-28 02:52:11,031 INFO L84 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 116 events. 6/116 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 134 event pairs, 2 based on Foata normal form. 2/115 useless extension candidates. Maximal degree in co-relation 202. Up to 10 conditions per place. [2021-12-28 02:52:11,032 INFO L132 encePairwiseOnDemand]: 104/111 looper letters, 0 selfloop transitions, 0 changer transitions 95/95 dead transitions. [2021-12-28 02:52:11,032 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 95 transitions, 312 flow [2021-12-28 02:52:11,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-28 02:52:11,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-28 02:52:11,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 952 transitions. [2021-12-28 02:52:11,033 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8576576576576577 [2021-12-28 02:52:11,033 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 952 transitions. [2021-12-28 02:52:11,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 952 transitions. [2021-12-28 02:52:11,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:52:11,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 952 transitions. [2021-12-28 02:52:11,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 95.2) internal successors, (952), 10 states have internal predecessors, (952), 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) [2021-12-28 02:52:11,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 111.0) internal successors, (1221), 11 states have internal predecessors, (1221), 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) [2021-12-28 02:52:11,037 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 111.0) internal successors, (1221), 11 states have internal predecessors, (1221), 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) [2021-12-28 02:52:11,037 INFO L186 Difference]: Start difference. First operand has 123 places, 90 transitions, 248 flow. Second operand 10 states and 952 transitions. [2021-12-28 02:52:11,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 95 transitions, 312 flow [2021-12-28 02:52:11,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 95 transitions, 264 flow, removed 16 selfloop flow, removed 11 redundant places. [2021-12-28 02:52:11,038 INFO L242 Difference]: Finished difference. Result has 113 places, 0 transitions, 0 flow [2021-12-28 02:52:11,038 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=113, PETRI_TRANSITIONS=0} [2021-12-28 02:52:11,039 INFO L334 CegarLoopForPetriNet]: 103 programPoint places, 10 predicate places. [2021-12-28 02:52:11,039 INFO L470 AbstractCegarLoop]: Abstraction has has 113 places, 0 transitions, 0 flow [2021-12-28 02:52:11,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 94.85714285714286) internal successors, (664), 7 states have internal predecessors, (664), 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) [2021-12-28 02:52:11,041 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2021-12-28 02:52:11,042 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2021-12-28 02:52:11,042 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2021-12-28 02:52:11,042 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2021-12-28 02:52:11,042 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2021-12-28 02:52:11,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 02:52:11,046 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 02:52:11,048 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-28 02:52:11,048 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-28 02:52:11,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 02:52:11 BasicIcfg [2021-12-28 02:52:11,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-28 02:52:11,054 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 02:52:11,055 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 02:52:11,055 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 02:52:11,055 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 02:52:07" (3/4) ... [2021-12-28 02:52:11,057 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-28 02:52:11,061 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-12-28 02:52:11,061 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-12-28 02:52:11,061 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-12-28 02:52:11,061 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2021-12-28 02:52:11,065 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-12-28 02:52:11,065 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-28 02:52:11,065 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-28 02:52:11,065 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-28 02:52:11,097 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 02:52:11,097 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 02:52:11,098 INFO L158 Benchmark]: Toolchain (without parser) took 4397.99ms. Allocated memory was 52.4MB in the beginning and 132.1MB in the end (delta: 79.7MB). Free memory was 28.2MB in the beginning and 98.7MB in the end (delta: -70.5MB). Peak memory consumption was 78.4MB. Max. memory is 16.1GB. [2021-12-28 02:52:11,098 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 52.4MB. Free memory was 35.0MB in the beginning and 34.9MB in the end (delta: 32.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 02:52:11,098 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.45ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 28.0MB in the beginning and 42.3MB in the end (delta: -14.3MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-12-28 02:52:11,098 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.40ms. Allocated memory is still 69.2MB. Free memory was 42.3MB in the beginning and 40.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 02:52:11,099 INFO L158 Benchmark]: Boogie Preprocessor took 39.58ms. Allocated memory is still 69.2MB. Free memory was 40.3MB in the beginning and 38.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 02:52:11,099 INFO L158 Benchmark]: RCFGBuilder took 425.14ms. Allocated memory is still 69.2MB. Free memory was 38.7MB in the beginning and 39.8MB in the end (delta: -1.2MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2021-12-28 02:52:11,099 INFO L158 Benchmark]: TraceAbstraction took 3363.50ms. Allocated memory was 69.2MB in the beginning and 132.1MB in the end (delta: 62.9MB). Free memory was 39.6MB in the beginning and 33.5MB in the end (delta: 6.1MB). Peak memory consumption was 68.0MB. Max. memory is 16.1GB. [2021-12-28 02:52:11,099 INFO L158 Benchmark]: Witness Printer took 42.61ms. Allocated memory is still 132.1MB. Free memory was 33.5MB in the beginning and 98.7MB in the end (delta: -65.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-28 02:52:11,101 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 52.4MB. Free memory was 35.0MB in the beginning and 34.9MB in the end (delta: 32.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 468.45ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 28.0MB in the beginning and 42.3MB in the end (delta: -14.3MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.40ms. Allocated memory is still 69.2MB. Free memory was 42.3MB in the beginning and 40.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.58ms. Allocated memory is still 69.2MB. Free memory was 40.3MB in the beginning and 38.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 425.14ms. Allocated memory is still 69.2MB. Free memory was 38.7MB in the beginning and 39.8MB in the end (delta: -1.2MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3363.50ms. Allocated memory was 69.2MB in the beginning and 132.1MB in the end (delta: 62.9MB). Free memory was 39.6MB in the beginning and 33.5MB in the end (delta: 6.1MB). Peak memory consumption was 68.0MB. Max. memory is 16.1GB. * Witness Printer took 42.61ms. Allocated memory is still 132.1MB. Free memory was 33.5MB in the beginning and 98.7MB in the end (delta: -65.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 9 procedures, 142 locations, 5 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: 3.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 422 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 422 mSDsluCounter, 634 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 606 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 460 IncrementalHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 164 mSDtfsCounter, 460 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=432occurred in iteration=3, InterpolantAutomatonStates: 97, 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, 1.0s InterpolantComputationTime, 635 NumberOfCodeBlocks, 635 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 626 ConstructedInterpolants, 0 QuantifiedInterpolants, 3378 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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! [2021-12-28 02:52:11,152 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