./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix040.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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/mix040.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 9adb0e975425d9a1b173bce1a766592f39d0541cd50cefd6e228e1140c2f9f3e --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 22:19:25,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 22:19:25,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 22:19:25,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 22:19:25,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 22:19:25,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 22:19:25,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 22:19:25,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 22:19:25,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 22:19:25,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 22:19:25,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 22:19:25,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 22:19:25,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 22:19:25,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 22:19:25,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 22:19:25,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 22:19:25,900 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 22:19:25,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 22:19:25,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 22:19:25,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 22:19:25,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 22:19:25,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 22:19:25,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 22:19:25,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 22:19:25,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 22:19:25,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 22:19:25,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 22:19:25,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 22:19:25,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 22:19:25,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 22:19:25,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 22:19:25,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 22:19:25,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 22:19:25,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 22:19:25,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 22:19:25,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 22:19:25,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 22:19:25,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 22:19:25,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 22:19:25,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 22:19:25,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 22:19:25,936 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 22:19:25,951 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 22:19:25,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 22:19:25,962 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 22:19:25,962 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 22:19:25,963 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 22:19:25,963 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 22:19:25,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 22:19:25,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 22:19:25,965 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 22:19:25,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 22:19:25,966 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 22:19:25,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 22:19:25,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 22:19:25,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 22:19:25,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 22:19:25,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 22:19:25,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 22:19:25,967 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 22:19:25,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 22:19:25,967 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 22:19:25,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 22:19:25,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 22:19:25,968 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 22:19:25,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 22:19:25,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 22:19:25,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 22:19:25,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 22:19:25,969 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 22:19:25,969 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 22:19:25,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 22:19:25,969 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 22:19:25,969 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 22:19:25,970 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 22:19:25,970 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 22:19:25,970 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9adb0e975425d9a1b173bce1a766592f39d0541cd50cefd6e228e1140c2f9f3e [2021-12-17 22:19:26,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 22:19:26,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 22:19:26,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 22:19:26,214 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 22:19:26,215 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 22:19:26,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix040.opt.i [2021-12-17 22:19:26,273 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6794193c/e579f27ab6764169b6752033058bdfd0/FLAGf522dd009 [2021-12-17 22:19:26,659 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 22:19:26,664 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix040.opt.i [2021-12-17 22:19:26,679 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6794193c/e579f27ab6764169b6752033058bdfd0/FLAGf522dd009 [2021-12-17 22:19:27,008 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6794193c/e579f27ab6764169b6752033058bdfd0 [2021-12-17 22:19:27,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 22:19:27,011 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 22:19:27,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 22:19:27,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 22:19:27,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 22:19:27,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:19:27" (1/1) ... [2021-12-17 22:19:27,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1008147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:27, skipping insertion in model container [2021-12-17 22:19:27,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:19:27" (1/1) ... [2021-12-17 22:19:27,021 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 22:19:27,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 22:19:27,178 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/mix040.opt.i[944,957] [2021-12-17 22:19:27,299 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 22:19:27,313 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 22:19:27,327 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/mix040.opt.i[944,957] [2021-12-17 22:19:27,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 22:19:27,392 INFO L208 MainTranslator]: Completed translation [2021-12-17 22:19:27,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:27 WrapperNode [2021-12-17 22:19:27,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 22:19:27,394 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 22:19:27,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 22:19:27,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 22:19:27,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:27" (1/1) ... [2021-12-17 22:19:27,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:27" (1/1) ... [2021-12-17 22:19:27,458 INFO L137 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 199 [2021-12-17 22:19:27,462 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 22:19:27,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 22:19:27,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 22:19:27,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 22:19:27,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:27" (1/1) ... [2021-12-17 22:19:27,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:27" (1/1) ... [2021-12-17 22:19:27,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:27" (1/1) ... [2021-12-17 22:19:27,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:27" (1/1) ... [2021-12-17 22:19:27,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:27" (1/1) ... [2021-12-17 22:19:27,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:27" (1/1) ... [2021-12-17 22:19:27,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:27" (1/1) ... [2021-12-17 22:19:27,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 22:19:27,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 22:19:27,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 22:19:27,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 22:19:27,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:27" (1/1) ... [2021-12-17 22:19:27,511 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 22:19:27,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 22:19:27,528 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) [2021-12-17 22:19:27,536 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 [2021-12-17 22:19:27,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 22:19:27,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-17 22:19:27,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 22:19:27,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 22:19:27,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 22:19:27,554 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-12-17 22:19:27,554 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-12-17 22:19:27,554 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-12-17 22:19:27,555 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-12-17 22:19:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-12-17 22:19:27,555 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-12-17 22:19:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-12-17 22:19:27,555 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-12-17 22:19:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 22:19:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-17 22:19:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 22:19:27,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 22:19:27,557 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-17 22:19:27,642 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 22:19:27,644 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 22:19:28,041 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 22:19:28,294 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 22:19:28,294 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-17 22:19:28,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:19:28 BoogieIcfgContainer [2021-12-17 22:19:28,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 22:19:28,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 22:19:28,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 22:19:28,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 22:19:28,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 10:19:27" (1/3) ... [2021-12-17 22:19:28,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d4ea38e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:19:28, skipping insertion in model container [2021-12-17 22:19:28,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:27" (2/3) ... [2021-12-17 22:19:28,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d4ea38e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:19:28, skipping insertion in model container [2021-12-17 22:19:28,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:19:28" (3/3) ... [2021-12-17 22:19:28,303 INFO L111 eAbstractionObserver]: Analyzing ICFG mix040.opt.i [2021-12-17 22:19:28,307 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-17 22:19:28,307 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 22:19:28,307 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-17 22:19:28,308 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-17 22:19:28,350 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,350 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,351 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,351 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,351 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,351 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,351 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,351 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,352 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,352 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,352 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,352 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,352 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,352 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,353 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,353 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,353 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,353 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,353 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,353 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,353 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,354 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,354 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,354 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,354 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,354 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,354 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,354 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,355 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,355 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,355 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,355 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,355 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,355 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,355 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,356 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,356 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,356 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,356 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,356 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,356 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,356 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,356 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,357 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,357 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,357 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,357 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,357 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,357 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,357 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,357 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,358 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,358 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,358 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,358 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,358 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,358 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,358 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,359 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,359 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,359 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,359 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,359 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,359 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,359 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,359 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,360 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,360 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,360 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,360 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,361 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,361 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,362 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,362 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,362 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,362 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,362 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,362 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,362 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,362 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,363 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,363 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,363 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,363 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,363 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,363 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,363 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,364 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,364 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,364 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,364 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,364 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,387 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,387 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,387 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,388 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,388 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,388 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,388 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,388 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,388 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,388 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,389 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,389 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,389 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,389 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,389 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,389 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,391 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,391 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,391 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,391 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,391 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,392 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,392 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,392 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,392 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,392 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,392 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,392 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,393 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,393 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,393 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,393 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,393 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,393 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,393 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,394 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,394 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,394 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,394 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,394 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,394 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,394 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,395 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,395 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,395 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,395 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,395 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,396 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,396 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,396 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,396 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,396 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,396 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,397 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,399 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,399 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,399 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,399 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,400 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,400 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,400 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,401 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,401 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,401 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,401 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,401 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,401 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,401 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,402 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,402 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,402 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,402 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,402 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,402 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,402 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,403 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,403 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,403 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,403 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,403 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,403 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,403 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,404 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,404 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,404 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,404 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,405 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,405 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,405 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,405 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,405 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,405 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,406 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,406 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,406 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,406 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,406 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,406 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,406 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,407 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,407 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:28,407 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-17 22:19:28,438 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 22:19:28,443 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 [2021-12-17 22:19:28,443 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-12-17 22:19:28,452 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 147 places, 136 transitions, 292 flow [2021-12-17 22:19:28,502 INFO L129 PetriNetUnfolder]: 2/132 cut-off events. [2021-12-17 22:19:28,502 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-17 22:19:28,506 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2021-12-17 22:19:28,506 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 136 transitions, 292 flow [2021-12-17 22:19:28,511 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 132 transitions, 276 flow [2021-12-17 22:19:28,526 INFO L129 PetriNetUnfolder]: 0/90 cut-off events. [2021-12-17 22:19:28,526 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-17 22:19:28,527 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:28,527 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] [2021-12-17 22:19:28,528 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:28,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:28,532 INFO L85 PathProgramCache]: Analyzing trace with hash 654708956, now seen corresponding path program 1 times [2021-12-17 22:19:28,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:28,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684232434] [2021-12-17 22:19:28,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:28,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:19:28,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:19:28,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:19:28,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684232434] [2021-12-17 22:19:28,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684232434] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:19:28,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:19:28,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 22:19:28,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624926342] [2021-12-17 22:19:28,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:19:28,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 22:19:28,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:19:29,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 22:19:29,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 22:19:29,038 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 136 [2021-12-17 22:19:29,048 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 132 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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) [2021-12-17 22:19:29,048 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:19:29,048 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 136 [2021-12-17 22:19:29,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:19:29,140 INFO L129 PetriNetUnfolder]: 10/170 cut-off events. [2021-12-17 22:19:29,140 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-12-17 22:19:29,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 170 events. 10/170 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 262 event pairs, 2 based on Foata normal form. 6/169 useless extension candidates. Maximal degree in co-relation 155. Up to 17 conditions per place. [2021-12-17 22:19:29,142 INFO L132 encePairwiseOnDemand]: 131/136 looper letters, 9 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2021-12-17 22:19:29,142 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 130 transitions, 294 flow [2021-12-17 22:19:29,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 22:19:29,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-17 22:19:29,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2021-12-17 22:19:29,152 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9436274509803921 [2021-12-17 22:19:29,152 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 385 transitions. [2021-12-17 22:19:29,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 385 transitions. [2021-12-17 22:19:29,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:19:29,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 385 transitions. [2021-12-17 22:19:29,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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) [2021-12-17 22:19:29,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2021-12-17 22:19:29,162 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2021-12-17 22:19:29,164 INFO L186 Difference]: Start difference. First operand has 143 places, 132 transitions, 276 flow. Second operand 3 states and 385 transitions. [2021-12-17 22:19:29,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 130 transitions, 294 flow [2021-12-17 22:19:29,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 130 transitions, 290 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-17 22:19:29,169 INFO L242 Difference]: Finished difference. Result has 139 places, 128 transitions, 268 flow [2021-12-17 22:19:29,171 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=139, PETRI_TRANSITIONS=128} [2021-12-17 22:19:29,173 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -4 predicate places. [2021-12-17 22:19:29,173 INFO L470 AbstractCegarLoop]: Abstraction has has 139 places, 128 transitions, 268 flow [2021-12-17 22:19:29,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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) [2021-12-17 22:19:29,174 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:29,174 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:19:29,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 22:19:29,174 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:29,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:29,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1854054527, now seen corresponding path program 1 times [2021-12-17 22:19:29,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:29,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126567406] [2021-12-17 22:19:29,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:29,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:29,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:19:29,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:19:29,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:19:29,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126567406] [2021-12-17 22:19:29,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126567406] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:19:29,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:19:29,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 22:19:29,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731917503] [2021-12-17 22:19:29,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:19:29,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 22:19:29,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:19:29,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 22:19:29,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 22:19:29,373 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2021-12-17 22:19:29,373 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 128 transitions, 268 flow. Second operand has 7 states, 7 states have (on average 108.28571428571429) internal successors, (758), 7 states have internal predecessors, (758), 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) [2021-12-17 22:19:29,373 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:19:29,373 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2021-12-17 22:19:29,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:19:30,794 INFO L129 PetriNetUnfolder]: 3865/10037 cut-off events. [2021-12-17 22:19:30,794 INFO L130 PetriNetUnfolder]: For 315/315 co-relation queries the response was YES. [2021-12-17 22:19:30,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16029 conditions, 10037 events. 3865/10037 cut-off events. For 315/315 co-relation queries the response was YES. Maximal size of possible extension queue 494. Compared 99147 event pairs, 629 based on Foata normal form. 0/9778 useless extension candidates. Maximal degree in co-relation 15968. Up to 1890 conditions per place. [2021-12-17 22:19:30,847 INFO L132 encePairwiseOnDemand]: 122/136 looper letters, 41 selfloop transitions, 12 changer transitions 107/249 dead transitions. [2021-12-17 22:19:30,847 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 249 transitions, 836 flow [2021-12-17 22:19:30,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-17 22:19:30,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-17 22:19:30,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1528 transitions. [2021-12-17 22:19:30,851 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8642533936651584 [2021-12-17 22:19:30,852 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1528 transitions. [2021-12-17 22:19:30,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1528 transitions. [2021-12-17 22:19:30,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:19:30,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1528 transitions. [2021-12-17 22:19:30,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.53846153846153) internal successors, (1528), 13 states have internal predecessors, (1528), 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) [2021-12-17 22:19:30,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2021-12-17 22:19:30,860 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2021-12-17 22:19:30,860 INFO L186 Difference]: Start difference. First operand has 139 places, 128 transitions, 268 flow. Second operand 13 states and 1528 transitions. [2021-12-17 22:19:30,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 249 transitions, 836 flow [2021-12-17 22:19:30,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 249 transitions, 810 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-17 22:19:30,866 INFO L242 Difference]: Finished difference. Result has 161 places, 123 transitions, 368 flow [2021-12-17 22:19:30,866 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=368, PETRI_PLACES=161, PETRI_TRANSITIONS=123} [2021-12-17 22:19:30,867 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 18 predicate places. [2021-12-17 22:19:30,867 INFO L470 AbstractCegarLoop]: Abstraction has has 161 places, 123 transitions, 368 flow [2021-12-17 22:19:30,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.28571428571429) internal successors, (758), 7 states have internal predecessors, (758), 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) [2021-12-17 22:19:30,867 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:30,867 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:19:30,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 22:19:30,868 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:30,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:30,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1613585950, now seen corresponding path program 1 times [2021-12-17 22:19:30,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:30,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959456993] [2021-12-17 22:19:30,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:30,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:19:31,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:19:31,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:19:31,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959456993] [2021-12-17 22:19:31,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959456993] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:19:31,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:19:31,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 22:19:31,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392502757] [2021-12-17 22:19:31,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:19:31,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 22:19:31,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:19:31,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 22:19:31,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 22:19:31,060 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2021-12-17 22:19:31,061 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 123 transitions, 368 flow. Second operand has 7 states, 7 states have (on average 108.42857142857143) internal successors, (759), 7 states have internal predecessors, (759), 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) [2021-12-17 22:19:31,061 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:19:31,061 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2021-12-17 22:19:31,061 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:19:31,892 INFO L129 PetriNetUnfolder]: 2328/4779 cut-off events. [2021-12-17 22:19:31,893 INFO L130 PetriNetUnfolder]: For 9419/9419 co-relation queries the response was YES. [2021-12-17 22:19:31,910 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15515 conditions, 4779 events. 2328/4779 cut-off events. For 9419/9419 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 36360 event pairs, 344 based on Foata normal form. 111/4774 useless extension candidates. Maximal degree in co-relation 15438. Up to 1244 conditions per place. [2021-12-17 22:19:31,932 INFO L132 encePairwiseOnDemand]: 124/136 looper letters, 43 selfloop transitions, 10 changer transitions 85/227 dead transitions. [2021-12-17 22:19:31,932 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 227 transitions, 1302 flow [2021-12-17 22:19:31,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-17 22:19:31,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-17 22:19:31,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1494 transitions. [2021-12-17 22:19:31,935 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8450226244343891 [2021-12-17 22:19:31,935 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1494 transitions. [2021-12-17 22:19:31,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1494 transitions. [2021-12-17 22:19:31,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:19:31,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1494 transitions. [2021-12-17 22:19:31,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.92307692307692) internal successors, (1494), 13 states have internal predecessors, (1494), 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) [2021-12-17 22:19:31,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2021-12-17 22:19:31,953 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2021-12-17 22:19:31,953 INFO L186 Difference]: Start difference. First operand has 161 places, 123 transitions, 368 flow. Second operand 13 states and 1494 transitions. [2021-12-17 22:19:31,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 227 transitions, 1302 flow [2021-12-17 22:19:31,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 227 transitions, 1278 flow, removed 12 selfloop flow, removed 3 redundant places. [2021-12-17 22:19:31,980 INFO L242 Difference]: Finished difference. Result has 159 places, 129 transitions, 494 flow [2021-12-17 22:19:31,980 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=494, PETRI_PLACES=159, PETRI_TRANSITIONS=129} [2021-12-17 22:19:31,981 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 16 predicate places. [2021-12-17 22:19:31,981 INFO L470 AbstractCegarLoop]: Abstraction has has 159 places, 129 transitions, 494 flow [2021-12-17 22:19:31,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.42857142857143) internal successors, (759), 7 states have internal predecessors, (759), 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) [2021-12-17 22:19:31,982 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:31,982 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:19:31,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 22:19:31,982 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:31,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:31,983 INFO L85 PathProgramCache]: Analyzing trace with hash 662635005, now seen corresponding path program 1 times [2021-12-17 22:19:31,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:31,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492634696] [2021-12-17 22:19:31,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:31,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:19:32,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:19:32,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:19:32,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492634696] [2021-12-17 22:19:32,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492634696] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:19:32,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:19:32,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 22:19:32,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472624] [2021-12-17 22:19:32,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:19:32,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 22:19:32,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:19:32,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 22:19:32,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 22:19:32,101 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2021-12-17 22:19:32,102 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 129 transitions, 494 flow. Second operand has 7 states, 7 states have (on average 108.71428571428571) internal successors, (761), 7 states have internal predecessors, (761), 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) [2021-12-17 22:19:32,102 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:19:32,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2021-12-17 22:19:32,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:19:32,849 INFO L129 PetriNetUnfolder]: 1733/3888 cut-off events. [2021-12-17 22:19:32,849 INFO L130 PetriNetUnfolder]: For 15395/15427 co-relation queries the response was YES. [2021-12-17 22:19:32,863 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14496 conditions, 3888 events. 1733/3888 cut-off events. For 15395/15427 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 29463 event pairs, 318 based on Foata normal form. 70/3807 useless extension candidates. Maximal degree in co-relation 14408. Up to 1027 conditions per place. [2021-12-17 22:19:32,880 INFO L132 encePairwiseOnDemand]: 121/136 looper letters, 47 selfloop transitions, 24 changer transitions 76/236 dead transitions. [2021-12-17 22:19:32,881 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 236 transitions, 1652 flow [2021-12-17 22:19:32,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-17 22:19:32,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-17 22:19:32,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1499 transitions. [2021-12-17 22:19:32,884 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8478506787330317 [2021-12-17 22:19:32,884 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1499 transitions. [2021-12-17 22:19:32,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1499 transitions. [2021-12-17 22:19:32,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:19:32,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1499 transitions. [2021-12-17 22:19:32,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.3076923076923) internal successors, (1499), 13 states have internal predecessors, (1499), 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) [2021-12-17 22:19:32,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2021-12-17 22:19:32,890 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2021-12-17 22:19:32,890 INFO L186 Difference]: Start difference. First operand has 159 places, 129 transitions, 494 flow. Second operand 13 states and 1499 transitions. [2021-12-17 22:19:32,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 236 transitions, 1652 flow [2021-12-17 22:19:32,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 236 transitions, 1575 flow, removed 36 selfloop flow, removed 4 redundant places. [2021-12-17 22:19:32,919 INFO L242 Difference]: Finished difference. Result has 170 places, 143 transitions, 780 flow [2021-12-17 22:19:32,919 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=780, PETRI_PLACES=170, PETRI_TRANSITIONS=143} [2021-12-17 22:19:32,920 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 27 predicate places. [2021-12-17 22:19:32,920 INFO L470 AbstractCegarLoop]: Abstraction has has 170 places, 143 transitions, 780 flow [2021-12-17 22:19:32,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.71428571428571) internal successors, (761), 7 states have internal predecessors, (761), 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) [2021-12-17 22:19:32,920 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:32,920 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:19:32,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 22:19:32,921 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:32,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:32,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1474955095, now seen corresponding path program 1 times [2021-12-17 22:19:32,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:32,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927288966] [2021-12-17 22:19:32,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:32,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:19:32,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:19:32,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:19:32,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927288966] [2021-12-17 22:19:32,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927288966] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:19:32,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:19:32,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 22:19:32,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683309707] [2021-12-17 22:19:32,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:19:32,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 22:19:32,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:19:32,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 22:19:32,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 22:19:32,989 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 136 [2021-12-17 22:19:32,990 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 143 transitions, 780 flow. Second operand has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 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) [2021-12-17 22:19:32,990 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:19:32,990 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 136 [2021-12-17 22:19:32,990 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:19:33,513 INFO L129 PetriNetUnfolder]: 1036/2879 cut-off events. [2021-12-17 22:19:33,513 INFO L130 PetriNetUnfolder]: For 16730/17130 co-relation queries the response was YES. [2021-12-17 22:19:33,529 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11453 conditions, 2879 events. 1036/2879 cut-off events. For 16730/17130 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 23747 event pairs, 305 based on Foata normal form. 160/2934 useless extension candidates. Maximal degree in co-relation 11353. Up to 771 conditions per place. [2021-12-17 22:19:33,540 INFO L132 encePairwiseOnDemand]: 130/136 looper letters, 31 selfloop transitions, 8 changer transitions 33/186 dead transitions. [2021-12-17 22:19:33,540 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 186 transitions, 1332 flow [2021-12-17 22:19:33,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 22:19:33,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-17 22:19:33,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1078 transitions. [2021-12-17 22:19:33,542 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.880718954248366 [2021-12-17 22:19:33,542 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1078 transitions. [2021-12-17 22:19:33,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1078 transitions. [2021-12-17 22:19:33,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:19:33,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1078 transitions. [2021-12-17 22:19:33,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 119.77777777777777) internal successors, (1078), 9 states have internal predecessors, (1078), 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) [2021-12-17 22:19:33,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2021-12-17 22:19:33,546 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2021-12-17 22:19:33,546 INFO L186 Difference]: Start difference. First operand has 170 places, 143 transitions, 780 flow. Second operand 9 states and 1078 transitions. [2021-12-17 22:19:33,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 186 transitions, 1332 flow [2021-12-17 22:19:33,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 186 transitions, 1230 flow, removed 51 selfloop flow, removed 6 redundant places. [2021-12-17 22:19:33,577 INFO L242 Difference]: Finished difference. Result has 170 places, 142 transitions, 744 flow [2021-12-17 22:19:33,578 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=744, PETRI_PLACES=170, PETRI_TRANSITIONS=142} [2021-12-17 22:19:33,578 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 27 predicate places. [2021-12-17 22:19:33,578 INFO L470 AbstractCegarLoop]: Abstraction has has 170 places, 142 transitions, 744 flow [2021-12-17 22:19:33,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 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) [2021-12-17 22:19:33,579 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:33,579 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:19:33,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 22:19:33,579 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:33,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:33,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1347978356, now seen corresponding path program 1 times [2021-12-17 22:19:33,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:33,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857463165] [2021-12-17 22:19:33,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:33,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:19:33,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:19:33,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:19:33,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857463165] [2021-12-17 22:19:33,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857463165] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:19:33,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:19:33,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 22:19:33,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471347628] [2021-12-17 22:19:33,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:19:33,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 22:19:33,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:19:33,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 22:19:33,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 22:19:33,649 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 136 [2021-12-17 22:19:33,650 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 142 transitions, 744 flow. Second operand has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 6 states have internal predecessors, (685), 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) [2021-12-17 22:19:33,650 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:19:33,650 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 136 [2021-12-17 22:19:33,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:19:36,136 INFO L129 PetriNetUnfolder]: 10498/19254 cut-off events. [2021-12-17 22:19:36,136 INFO L130 PetriNetUnfolder]: For 38780/48806 co-relation queries the response was YES. [2021-12-17 22:19:36,326 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50238 conditions, 19254 events. 10498/19254 cut-off events. For 38780/48806 co-relation queries the response was YES. Maximal size of possible extension queue 1601. Compared 177326 event pairs, 582 based on Foata normal form. 282/17869 useless extension candidates. Maximal degree in co-relation 50168. Up to 6698 conditions per place. [2021-12-17 22:19:36,383 INFO L132 encePairwiseOnDemand]: 125/136 looper letters, 77 selfloop transitions, 20 changer transitions 0/217 dead transitions. [2021-12-17 22:19:36,383 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 217 transitions, 1304 flow [2021-12-17 22:19:36,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-17 22:19:36,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-17 22:19:36,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1203 transitions. [2021-12-17 22:19:36,386 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8845588235294117 [2021-12-17 22:19:36,386 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1203 transitions. [2021-12-17 22:19:36,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1203 transitions. [2021-12-17 22:19:36,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:19:36,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1203 transitions. [2021-12-17 22:19:36,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 120.3) internal successors, (1203), 10 states have internal predecessors, (1203), 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) [2021-12-17 22:19:36,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 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) [2021-12-17 22:19:36,390 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 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) [2021-12-17 22:19:36,390 INFO L186 Difference]: Start difference. First operand has 170 places, 142 transitions, 744 flow. Second operand 10 states and 1203 transitions. [2021-12-17 22:19:36,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 217 transitions, 1304 flow [2021-12-17 22:19:36,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 217 transitions, 1254 flow, removed 21 selfloop flow, removed 16 redundant places. [2021-12-17 22:19:36,428 INFO L242 Difference]: Finished difference. Result has 163 places, 160 transitions, 837 flow [2021-12-17 22:19:36,429 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=837, PETRI_PLACES=163, PETRI_TRANSITIONS=160} [2021-12-17 22:19:36,429 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 20 predicate places. [2021-12-17 22:19:36,429 INFO L470 AbstractCegarLoop]: Abstraction has has 163 places, 160 transitions, 837 flow [2021-12-17 22:19:36,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 6 states have internal predecessors, (685), 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) [2021-12-17 22:19:36,430 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:36,430 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:19:36,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 22:19:36,430 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:36,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:36,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1049308865, now seen corresponding path program 1 times [2021-12-17 22:19:36,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:36,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285394271] [2021-12-17 22:19:36,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:36,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:19:36,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:19:36,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:19:36,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285394271] [2021-12-17 22:19:36,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285394271] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:19:36,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:19:36,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 22:19:36,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23425404] [2021-12-17 22:19:36,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:19:36,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 22:19:36,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:19:36,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 22:19:36,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 22:19:36,496 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 136 [2021-12-17 22:19:36,497 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 160 transitions, 837 flow. Second operand has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 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) [2021-12-17 22:19:36,497 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:19:36,497 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 136 [2021-12-17 22:19:36,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:19:37,996 INFO L129 PetriNetUnfolder]: 3327/11299 cut-off events. [2021-12-17 22:19:37,996 INFO L130 PetriNetUnfolder]: For 20876/25561 co-relation queries the response was YES. [2021-12-17 22:19:38,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32843 conditions, 11299 events. 3327/11299 cut-off events. For 20876/25561 co-relation queries the response was YES. Maximal size of possible extension queue 873. Compared 139153 event pairs, 1266 based on Foata normal form. 408/10567 useless extension candidates. Maximal degree in co-relation 32748. Up to 3334 conditions per place. [2021-12-17 22:19:38,140 INFO L132 encePairwiseOnDemand]: 130/136 looper letters, 47 selfloop transitions, 21 changer transitions 4/200 dead transitions. [2021-12-17 22:19:38,140 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 200 transitions, 1251 flow [2021-12-17 22:19:38,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 22:19:38,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-17 22:19:38,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1079 transitions. [2021-12-17 22:19:38,143 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8815359477124183 [2021-12-17 22:19:38,143 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1079 transitions. [2021-12-17 22:19:38,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1079 transitions. [2021-12-17 22:19:38,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:19:38,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1079 transitions. [2021-12-17 22:19:38,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 119.88888888888889) internal successors, (1079), 9 states have internal predecessors, (1079), 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) [2021-12-17 22:19:38,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2021-12-17 22:19:38,148 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2021-12-17 22:19:38,148 INFO L186 Difference]: Start difference. First operand has 163 places, 160 transitions, 837 flow. Second operand 9 states and 1079 transitions. [2021-12-17 22:19:38,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 200 transitions, 1251 flow [2021-12-17 22:19:38,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 200 transitions, 1249 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-17 22:19:38,221 INFO L242 Difference]: Finished difference. Result has 177 places, 167 transitions, 958 flow [2021-12-17 22:19:38,222 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=835, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=958, PETRI_PLACES=177, PETRI_TRANSITIONS=167} [2021-12-17 22:19:38,223 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 34 predicate places. [2021-12-17 22:19:38,223 INFO L470 AbstractCegarLoop]: Abstraction has has 177 places, 167 transitions, 958 flow [2021-12-17 22:19:38,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 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) [2021-12-17 22:19:38,223 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:38,224 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:19:38,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 22:19:38,224 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:38,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:38,224 INFO L85 PathProgramCache]: Analyzing trace with hash 930717771, now seen corresponding path program 1 times [2021-12-17 22:19:38,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:38,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516352385] [2021-12-17 22:19:38,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:38,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:19:38,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:19:38,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:19:38,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516352385] [2021-12-17 22:19:38,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516352385] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:19:38,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:19:38,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 22:19:38,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351394774] [2021-12-17 22:19:38,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:19:38,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 22:19:38,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:19:38,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 22:19:38,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 22:19:38,353 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 136 [2021-12-17 22:19:38,354 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 167 transitions, 958 flow. Second operand has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 22:19:38,354 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:19:38,354 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 136 [2021-12-17 22:19:38,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:19:42,653 INFO L129 PetriNetUnfolder]: 15018/28700 cut-off events. [2021-12-17 22:19:42,653 INFO L130 PetriNetUnfolder]: For 91673/106406 co-relation queries the response was YES. [2021-12-17 22:19:42,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104990 conditions, 28700 events. 15018/28700 cut-off events. For 91673/106406 co-relation queries the response was YES. Maximal size of possible extension queue 2454. Compared 295868 event pairs, 279 based on Foata normal form. 1519/28656 useless extension candidates. Maximal degree in co-relation 104888. Up to 9654 conditions per place. [2021-12-17 22:19:43,010 INFO L132 encePairwiseOnDemand]: 125/136 looper letters, 99 selfloop transitions, 38 changer transitions 0/264 dead transitions. [2021-12-17 22:19:43,011 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 264 transitions, 1932 flow [2021-12-17 22:19:43,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-17 22:19:43,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-17 22:19:43,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1567 transitions. [2021-12-17 22:19:43,014 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8863122171945701 [2021-12-17 22:19:43,014 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1567 transitions. [2021-12-17 22:19:43,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1567 transitions. [2021-12-17 22:19:43,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:19:43,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1567 transitions. [2021-12-17 22:19:43,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 120.53846153846153) internal successors, (1567), 13 states have internal predecessors, (1567), 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) [2021-12-17 22:19:43,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2021-12-17 22:19:43,019 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2021-12-17 22:19:43,020 INFO L186 Difference]: Start difference. First operand has 177 places, 167 transitions, 958 flow. Second operand 13 states and 1567 transitions. [2021-12-17 22:19:43,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 264 transitions, 1932 flow [2021-12-17 22:19:43,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 264 transitions, 1909 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-12-17 22:19:43,358 INFO L242 Difference]: Finished difference. Result has 194 places, 187 transitions, 1228 flow [2021-12-17 22:19:43,358 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=935, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1228, PETRI_PLACES=194, PETRI_TRANSITIONS=187} [2021-12-17 22:19:43,359 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 51 predicate places. [2021-12-17 22:19:43,359 INFO L470 AbstractCegarLoop]: Abstraction has has 194 places, 187 transitions, 1228 flow [2021-12-17 22:19:43,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 22:19:43,359 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:43,359 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:19:43,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 22:19:43,360 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:43,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:43,360 INFO L85 PathProgramCache]: Analyzing trace with hash -980132774, now seen corresponding path program 1 times [2021-12-17 22:19:43,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:43,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805947971] [2021-12-17 22:19:43,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:43,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:19:43,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:19:43,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:19:43,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805947971] [2021-12-17 22:19:43,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805947971] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:19:43,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:19:43,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 22:19:43,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633474309] [2021-12-17 22:19:43,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:19:43,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 22:19:43,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:19:43,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 22:19:43,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-17 22:19:43,713 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 136 [2021-12-17 22:19:43,714 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 187 transitions, 1228 flow. Second operand has 8 states, 8 states have (on average 114.0) internal successors, (912), 8 states have internal predecessors, (912), 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) [2021-12-17 22:19:43,714 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:19:43,714 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 136 [2021-12-17 22:19:43,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:19:48,649 INFO L129 PetriNetUnfolder]: 14330/28213 cut-off events. [2021-12-17 22:19:48,650 INFO L130 PetriNetUnfolder]: For 161187/179441 co-relation queries the response was YES. [2021-12-17 22:19:49,072 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129118 conditions, 28213 events. 14330/28213 cut-off events. For 161187/179441 co-relation queries the response was YES. Maximal size of possible extension queue 2467. Compared 301192 event pairs, 194 based on Foata normal form. 1993/28713 useless extension candidates. Maximal degree in co-relation 129008. Up to 9080 conditions per place. [2021-12-17 22:19:49,161 INFO L132 encePairwiseOnDemand]: 125/136 looper letters, 93 selfloop transitions, 58 changer transitions 31/301 dead transitions. [2021-12-17 22:19:49,161 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 301 transitions, 2566 flow [2021-12-17 22:19:49,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-17 22:19:49,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-12-17 22:19:49,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1930 transitions. [2021-12-17 22:19:49,166 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8869485294117647 [2021-12-17 22:19:49,166 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1930 transitions. [2021-12-17 22:19:49,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1930 transitions. [2021-12-17 22:19:49,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:19:49,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1930 transitions. [2021-12-17 22:19:49,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 120.625) internal successors, (1930), 16 states have internal predecessors, (1930), 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) [2021-12-17 22:19:49,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 136.0) internal successors, (2312), 17 states have internal predecessors, (2312), 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) [2021-12-17 22:19:49,175 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 136.0) internal successors, (2312), 17 states have internal predecessors, (2312), 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) [2021-12-17 22:19:49,176 INFO L186 Difference]: Start difference. First operand has 194 places, 187 transitions, 1228 flow. Second operand 16 states and 1930 transitions. [2021-12-17 22:19:49,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 301 transitions, 2566 flow [2021-12-17 22:19:53,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 301 transitions, 2445 flow, removed 48 selfloop flow, removed 5 redundant places. [2021-12-17 22:19:53,518 INFO L242 Difference]: Finished difference. Result has 208 places, 205 transitions, 1510 flow [2021-12-17 22:19:53,518 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1115, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1510, PETRI_PLACES=208, PETRI_TRANSITIONS=205} [2021-12-17 22:19:53,519 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 65 predicate places. [2021-12-17 22:19:53,519 INFO L470 AbstractCegarLoop]: Abstraction has has 208 places, 205 transitions, 1510 flow [2021-12-17 22:19:53,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 114.0) internal successors, (912), 8 states have internal predecessors, (912), 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) [2021-12-17 22:19:53,520 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:53,520 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:19:53,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 22:19:53,521 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:53,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:53,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1507813486, now seen corresponding path program 1 times [2021-12-17 22:19:53,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:53,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512800105] [2021-12-17 22:19:53,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:53,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:19:53,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:19:53,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:19:53,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512800105] [2021-12-17 22:19:53,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512800105] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:19:53,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:19:53,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 22:19:53,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964606648] [2021-12-17 22:19:53,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:19:53,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 22:19:53,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:19:53,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 22:19:53,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-17 22:19:53,683 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 136 [2021-12-17 22:19:53,684 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 205 transitions, 1510 flow. Second operand has 9 states, 9 states have (on average 114.0) internal successors, (1026), 9 states have internal predecessors, (1026), 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) [2021-12-17 22:19:53,684 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:19:53,685 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 136 [2021-12-17 22:19:53,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:19:58,435 INFO L129 PetriNetUnfolder]: 13837/27479 cut-off events. [2021-12-17 22:19:58,435 INFO L130 PetriNetUnfolder]: For 170634/185856 co-relation queries the response was YES. [2021-12-17 22:19:58,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124689 conditions, 27479 events. 13837/27479 cut-off events. For 170634/185856 co-relation queries the response was YES. Maximal size of possible extension queue 2467. Compared 296973 event pairs, 190 based on Foata normal form. 1582/27572 useless extension candidates. Maximal degree in co-relation 124644. Up to 5663 conditions per place. [2021-12-17 22:19:58,925 INFO L132 encePairwiseOnDemand]: 125/136 looper letters, 83 selfloop transitions, 63 changer transitions 33/298 dead transitions. [2021-12-17 22:19:58,926 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 298 transitions, 2607 flow [2021-12-17 22:19:58,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-17 22:19:58,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-12-17 22:19:58,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2257 transitions. [2021-12-17 22:19:58,933 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8734520123839009 [2021-12-17 22:19:58,934 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2257 transitions. [2021-12-17 22:19:58,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2257 transitions. [2021-12-17 22:19:58,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:19:58,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2257 transitions. [2021-12-17 22:19:58,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 118.78947368421052) internal successors, (2257), 19 states have internal predecessors, (2257), 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) [2021-12-17 22:19:58,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 136.0) internal successors, (2720), 20 states have internal predecessors, (2720), 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) [2021-12-17 22:19:58,964 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 136.0) internal successors, (2720), 20 states have internal predecessors, (2720), 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) [2021-12-17 22:19:58,964 INFO L186 Difference]: Start difference. First operand has 208 places, 205 transitions, 1510 flow. Second operand 19 states and 2257 transitions. [2021-12-17 22:19:58,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 298 transitions, 2607 flow [2021-12-17 22:20:08,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 298 transitions, 2190 flow, removed 164 selfloop flow, removed 21 redundant places. [2021-12-17 22:20:08,929 INFO L242 Difference]: Finished difference. Result has 206 places, 204 transitions, 1336 flow [2021-12-17 22:20:08,930 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1165, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1336, PETRI_PLACES=206, PETRI_TRANSITIONS=204} [2021-12-17 22:20:08,930 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 63 predicate places. [2021-12-17 22:20:08,930 INFO L470 AbstractCegarLoop]: Abstraction has has 206 places, 204 transitions, 1336 flow [2021-12-17 22:20:08,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 114.0) internal successors, (1026), 9 states have internal predecessors, (1026), 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) [2021-12-17 22:20:08,931 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:20:08,931 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:20:08,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 22:20:08,932 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:20:08,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:20:08,933 INFO L85 PathProgramCache]: Analyzing trace with hash 434708838, now seen corresponding path program 1 times [2021-12-17 22:20:08,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:20:08,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940543850] [2021-12-17 22:20:08,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:20:08,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:20:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:20:09,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:20:09,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:20:09,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940543850] [2021-12-17 22:20:09,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940543850] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:20:09,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:20:09,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 22:20:09,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964945948] [2021-12-17 22:20:09,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:20:09,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 22:20:09,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:20:09,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 22:20:09,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 22:20:09,085 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 136 [2021-12-17 22:20:09,095 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 204 transitions, 1336 flow. Second operand has 7 states, 7 states have (on average 107.85714285714286) internal successors, (755), 7 states have internal predecessors, (755), 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) [2021-12-17 22:20:09,095 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:20:09,095 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 136 [2021-12-17 22:20:09,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:20:10,816 INFO L129 PetriNetUnfolder]: 5346/16817 cut-off events. [2021-12-17 22:20:10,817 INFO L130 PetriNetUnfolder]: For 41229/42725 co-relation queries the response was YES. [2021-12-17 22:20:10,918 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55130 conditions, 16817 events. 5346/16817 cut-off events. For 41229/42725 co-relation queries the response was YES. Maximal size of possible extension queue 2016. Compared 228657 event pairs, 82 based on Foata normal form. 7/15766 useless extension candidates. Maximal degree in co-relation 55017. Up to 1687 conditions per place. [2021-12-17 22:20:10,957 INFO L132 encePairwiseOnDemand]: 121/136 looper letters, 52 selfloop transitions, 41 changer transitions 9/252 dead transitions. [2021-12-17 22:20:10,957 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 252 transitions, 1957 flow [2021-12-17 22:20:10,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 22:20:10,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-17 22:20:10,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 897 transitions. [2021-12-17 22:20:10,968 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8244485294117647 [2021-12-17 22:20:10,968 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 897 transitions. [2021-12-17 22:20:10,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 897 transitions. [2021-12-17 22:20:10,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:20:10,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 897 transitions. [2021-12-17 22:20:10,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 112.125) internal successors, (897), 8 states have internal predecessors, (897), 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) [2021-12-17 22:20:10,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 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) [2021-12-17 22:20:10,972 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 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) [2021-12-17 22:20:10,972 INFO L186 Difference]: Start difference. First operand has 206 places, 204 transitions, 1336 flow. Second operand 8 states and 897 transitions. [2021-12-17 22:20:10,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 252 transitions, 1957 flow [2021-12-17 22:20:13,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 252 transitions, 1757 flow, removed 52 selfloop flow, removed 17 redundant places. [2021-12-17 22:20:13,476 INFO L242 Difference]: Finished difference. Result has 199 places, 226 transitions, 1622 flow [2021-12-17 22:20:13,476 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1202, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1622, PETRI_PLACES=199, PETRI_TRANSITIONS=226} [2021-12-17 22:20:13,477 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 56 predicate places. [2021-12-17 22:20:13,477 INFO L470 AbstractCegarLoop]: Abstraction has has 199 places, 226 transitions, 1622 flow [2021-12-17 22:20:13,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 107.85714285714286) internal successors, (755), 7 states have internal predecessors, (755), 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) [2021-12-17 22:20:13,477 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:20:13,477 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:20:13,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 22:20:13,478 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:20:13,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:20:13,478 INFO L85 PathProgramCache]: Analyzing trace with hash -2114094082, now seen corresponding path program 2 times [2021-12-17 22:20:13,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:20:13,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89348474] [2021-12-17 22:20:13,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:20:13,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:20:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:20:13,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:20:13,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:20:13,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89348474] [2021-12-17 22:20:13,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89348474] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:20:13,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:20:13,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 22:20:13,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985069602] [2021-12-17 22:20:13,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:20:13,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 22:20:13,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:20:13,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 22:20:13,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 22:20:13,604 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 136 [2021-12-17 22:20:13,605 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 226 transitions, 1622 flow. Second operand has 7 states, 7 states have (on average 115.57142857142857) internal successors, (809), 7 states have internal predecessors, (809), 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) [2021-12-17 22:20:13,605 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:20:13,605 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 136 [2021-12-17 22:20:13,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:20:16,105 INFO L129 PetriNetUnfolder]: 7425/22592 cut-off events. [2021-12-17 22:20:16,105 INFO L130 PetriNetUnfolder]: For 41085/41694 co-relation queries the response was YES. [2021-12-17 22:20:16,250 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65959 conditions, 22592 events. 7425/22592 cut-off events. For 41085/41694 co-relation queries the response was YES. Maximal size of possible extension queue 2775. Compared 319432 event pairs, 34 based on Foata normal form. 1/21174 useless extension candidates. Maximal degree in co-relation 65922. Up to 2529 conditions per place. [2021-12-17 22:20:16,264 INFO L132 encePairwiseOnDemand]: 130/136 looper letters, 18 selfloop transitions, 1 changer transitions 64/240 dead transitions. [2021-12-17 22:20:16,264 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 240 transitions, 1774 flow [2021-12-17 22:20:16,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 22:20:16,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-17 22:20:16,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 824 transitions. [2021-12-17 22:20:16,266 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.865546218487395 [2021-12-17 22:20:16,266 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 824 transitions. [2021-12-17 22:20:16,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 824 transitions. [2021-12-17 22:20:16,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:20:16,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 824 transitions. [2021-12-17 22:20:16,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 117.71428571428571) internal successors, (824), 7 states have internal predecessors, (824), 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) [2021-12-17 22:20:16,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 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) [2021-12-17 22:20:16,269 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 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) [2021-12-17 22:20:16,270 INFO L186 Difference]: Start difference. First operand has 199 places, 226 transitions, 1622 flow. Second operand 7 states and 824 transitions. [2021-12-17 22:20:16,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 240 transitions, 1774 flow [2021-12-17 22:20:19,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 240 transitions, 1764 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-12-17 22:20:19,718 INFO L242 Difference]: Finished difference. Result has 203 places, 175 transitions, 939 flow [2021-12-17 22:20:19,719 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1616, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=939, PETRI_PLACES=203, PETRI_TRANSITIONS=175} [2021-12-17 22:20:19,719 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 60 predicate places. [2021-12-17 22:20:19,719 INFO L470 AbstractCegarLoop]: Abstraction has has 203 places, 175 transitions, 939 flow [2021-12-17 22:20:19,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 115.57142857142857) internal successors, (809), 7 states have internal predecessors, (809), 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) [2021-12-17 22:20:19,720 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:20:19,720 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:20:19,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 22:20:19,720 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:20:19,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:20:19,721 INFO L85 PathProgramCache]: Analyzing trace with hash 120877944, now seen corresponding path program 3 times [2021-12-17 22:20:19,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:20:19,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753016003] [2021-12-17 22:20:19,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:20:19,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:20:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:20:19,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:20:19,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:20:19,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753016003] [2021-12-17 22:20:19,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753016003] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:20:19,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:20:19,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 22:20:19,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465931826] [2021-12-17 22:20:19,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:20:19,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 22:20:19,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:20:19,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 22:20:19,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 22:20:19,880 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 136 [2021-12-17 22:20:19,881 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 175 transitions, 939 flow. Second operand has 9 states, 9 states have (on average 112.33333333333333) internal successors, (1011), 9 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) [2021-12-17 22:20:19,881 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:20:19,881 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 136 [2021-12-17 22:20:19,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:20:20,200 INFO L129 PetriNetUnfolder]: 731/2801 cut-off events. [2021-12-17 22:20:20,200 INFO L130 PetriNetUnfolder]: For 4941/5001 co-relation queries the response was YES. [2021-12-17 22:20:20,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8002 conditions, 2801 events. 731/2801 cut-off events. For 4941/5001 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 30641 event pairs, 9 based on Foata normal form. 1/2633 useless extension candidates. Maximal degree in co-relation 7963. Up to 399 conditions per place. [2021-12-17 22:20:20,218 INFO L132 encePairwiseOnDemand]: 127/136 looper letters, 17 selfloop transitions, 5 changer transitions 55/181 dead transitions. [2021-12-17 22:20:20,218 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 181 transitions, 1023 flow [2021-12-17 22:20:20,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-17 22:20:20,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-17 22:20:20,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1128 transitions. [2021-12-17 22:20:20,220 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8294117647058824 [2021-12-17 22:20:20,220 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1128 transitions. [2021-12-17 22:20:20,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1128 transitions. [2021-12-17 22:20:20,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:20:20,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1128 transitions. [2021-12-17 22:20:20,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 112.8) internal successors, (1128), 10 states have internal predecessors, (1128), 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) [2021-12-17 22:20:20,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 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) [2021-12-17 22:20:20,223 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 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) [2021-12-17 22:20:20,223 INFO L186 Difference]: Start difference. First operand has 203 places, 175 transitions, 939 flow. Second operand 10 states and 1128 transitions. [2021-12-17 22:20:20,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 181 transitions, 1023 flow [2021-12-17 22:20:20,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 181 transitions, 918 flow, removed 17 selfloop flow, removed 18 redundant places. [2021-12-17 22:20:20,285 INFO L242 Difference]: Finished difference. Result has 195 places, 126 transitions, 468 flow [2021-12-17 22:20:20,285 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=468, PETRI_PLACES=195, PETRI_TRANSITIONS=126} [2021-12-17 22:20:20,286 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, 52 predicate places. [2021-12-17 22:20:20,286 INFO L470 AbstractCegarLoop]: Abstraction has has 195 places, 126 transitions, 468 flow [2021-12-17 22:20:20,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 112.33333333333333) internal successors, (1011), 9 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) [2021-12-17 22:20:20,286 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:20:20,286 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:20:20,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 22:20:20,287 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:20:20,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:20:20,287 INFO L85 PathProgramCache]: Analyzing trace with hash -349829180, now seen corresponding path program 4 times [2021-12-17 22:20:20,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:20:20,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670967144] [2021-12-17 22:20:20,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:20:20,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:20:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 22:20:20,313 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 22:20:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 22:20:20,371 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-17 22:20:20,371 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 22:20:20,372 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2021-12-17 22:20:20,373 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2021-12-17 22:20:20,373 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 7 remaining) [2021-12-17 22:20:20,373 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (3 of 7 remaining) [2021-12-17 22:20:20,373 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (2 of 7 remaining) [2021-12-17 22:20:20,373 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION (1 of 7 remaining) [2021-12-17 22:20:20,373 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2021-12-17 22:20:20,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 22:20:20,376 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:20:20,379 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-17 22:20:20,379 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 22:20:20,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 10:20:20 BasicIcfg [2021-12-17 22:20:20,476 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 22:20:20,476 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 22:20:20,476 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 22:20:20,476 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 22:20:20,476 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:19:28" (3/4) ... [2021-12-17 22:20:20,478 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-17 22:20:20,603 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 22:20:20,603 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 22:20:20,604 INFO L158 Benchmark]: Toolchain (without parser) took 53592.76ms. Allocated memory was 102.8MB in the beginning and 7.5GB in the end (delta: 7.4GB). Free memory was 70.0MB in the beginning and 5.8GB in the end (delta: -5.7GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. [2021-12-17 22:20:20,604 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory was 38.8MB in the beginning and 38.8MB in the end (delta: 43.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 22:20:20,604 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.80ms. Allocated memory is still 102.8MB. Free memory was 69.8MB in the beginning and 67.5MB in the end (delta: 2.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-17 22:20:20,605 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.70ms. Allocated memory is still 102.8MB. Free memory was 67.5MB in the beginning and 65.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 22:20:20,605 INFO L158 Benchmark]: Boogie Preprocessor took 39.08ms. Allocated memory is still 102.8MB. Free memory was 65.0MB in the beginning and 62.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 22:20:20,605 INFO L158 Benchmark]: RCFGBuilder took 794.03ms. Allocated memory is still 102.8MB. Free memory was 62.9MB in the beginning and 49.2MB in the end (delta: 13.7MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2021-12-17 22:20:20,605 INFO L158 Benchmark]: TraceAbstraction took 52177.98ms. Allocated memory was 102.8MB in the beginning and 7.5GB in the end (delta: 7.4GB). Free memory was 48.7MB in the beginning and 5.5GB in the end (delta: -5.4GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2021-12-17 22:20:20,605 INFO L158 Benchmark]: Witness Printer took 127.39ms. Allocated memory is still 7.5GB. Free memory was 5.5GB in the beginning and 5.8GB in the end (delta: -318.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-17 22:20:20,608 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory was 38.8MB in the beginning and 38.8MB in the end (delta: 43.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.80ms. Allocated memory is still 102.8MB. Free memory was 69.8MB in the beginning and 67.5MB in the end (delta: 2.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.70ms. Allocated memory is still 102.8MB. Free memory was 67.5MB in the beginning and 65.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.08ms. Allocated memory is still 102.8MB. Free memory was 65.0MB in the beginning and 62.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 794.03ms. Allocated memory is still 102.8MB. Free memory was 62.9MB in the beginning and 49.2MB in the end (delta: 13.7MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. * TraceAbstraction took 52177.98ms. Allocated memory was 102.8MB in the beginning and 7.5GB in the end (delta: 7.4GB). Free memory was 48.7MB in the beginning and 5.5GB in the end (delta: -5.4GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. * Witness Printer took 127.39ms. Allocated memory is still 7.5GB. Free memory was 5.5GB in the beginning and 5.8GB in the end (delta: -318.8MB). Peak memory consumption was 14.7MB. 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 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L712] 0 int __unbuffered_p2_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0] [L714] 0 int __unbuffered_p3_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0] [L716] 0 int __unbuffered_p3_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0] [L718] 0 int a = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0] [L720] 0 int b = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0] [L721] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0] [L722] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0] [L724] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L726] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L728] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0] [L729] 0 _Bool z$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0] [L730] 0 int z$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0] [L731] 0 _Bool z$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0] [L732] 0 _Bool z$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0] [L733] 0 _Bool z$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0] [L734] 0 _Bool z$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0] [L735] 0 _Bool z$r_buff0_thd4; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0] [L736] 0 _Bool z$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0] [L737] 0 _Bool z$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0] [L738] 0 _Bool z$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0] [L739] 0 _Bool z$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0] [L740] 0 _Bool z$r_buff1_thd4; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0] [L741] 0 _Bool z$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0] [L742] 0 int *z$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}] [L743] 0 int z$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0] [L744] 0 _Bool z$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0] [L745] 0 int z$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0] [L746] 0 _Bool z$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L747] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L748] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L854] 0 pthread_t t1061; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t1061={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L855] FCALL, FORK 0 pthread_create(&t1061, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1061, ((void *)0), P0, ((void *)0))=-3, t1061={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L856] 0 pthread_t t1062; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t1061={5:0}, t1062={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L857] FCALL, FORK 0 pthread_create(&t1062, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1062, ((void *)0), P1, ((void *)0))=-2, t1061={5:0}, t1062={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L858] 0 pthread_t t1063; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t1061={5:0}, t1062={6:0}, t1063={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L859] FCALL, FORK 0 pthread_create(&t1063, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1063, ((void *)0), P2, ((void *)0))=-1, t1061={5:0}, t1062={6:0}, t1063={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L860] 0 pthread_t t1064; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t1061={5:0}, t1062={6:0}, t1063={7:0}, t1064={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L861] FCALL, FORK 0 pthread_create(&t1064, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1064, ((void *)0), P3, ((void *)0))=0, t1061={5:0}, t1062={6:0}, t1063={7:0}, t1064={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L810] 4 z$w_buff1 = z$w_buff0 [L811] 4 z$w_buff0 = 1 [L812] 4 z$w_buff1_used = z$w_buff0_used [L813] 4 z$w_buff0_used = (_Bool)1 [L814] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L814] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L815] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L816] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L817] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L818] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L819] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L820] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L823] 4 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L826] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L829] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L752] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L755] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L767] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L770] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L782] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L785] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L786] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L787] 3 z$flush_delayed = weak$$choice2 [L788] 3 z$mem_tmp = z [L789] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L789] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L790] EXPR 3 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L790] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L791] EXPR 3 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L791] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L792] EXPR 3 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L792] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L793] EXPR 3 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L793] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L794] EXPR 3 weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L794] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L795] EXPR 3 weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L795] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L796] 3 __unbuffered_p2_EAX = z [L797] EXPR 3 z$flush_delayed ? z$mem_tmp : z [L797] 3 z = z$flush_delayed ? z$mem_tmp : z [L798] 3 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L832] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L832] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L833] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L833] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L834] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L834] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L835] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L835] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L836] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L836] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L839] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L760] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L775] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L803] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L863] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [__unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t1061={5:0}, t1062={6:0}, t1063={7:0}, t1064={3:0}, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L865] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) VAL [\old(cond)=1, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, cond=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L865] RET 0 assume_abort_if_not(main$tmp_guard0) [L867] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L867] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L867] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L867] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L868] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L868] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L869] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L869] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L870] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L870] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L871] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L871] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L874] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) VAL [__unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t1061={5:0}, t1062={6:0}, t1063={7:0}, t1064={3:0}, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L876] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression VAL [\old(expression)=0, \old(expression)=1, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 857]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 861]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 171 locations, 7 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: 51.9s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 49.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 856 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 856 mSDsluCounter, 815 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1333 mSDsCounter, 203 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1601 IncrementalHoareTripleChecker+Invalid, 1804 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 203 mSolverCounterUnsat, 186 mSDtfsCounter, 1601 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1622occurred in iteration=11, InterpolantAutomatonStates: 143, 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, 0.6s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1335 NumberOfCodeBlocks, 1335 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1217 ConstructedInterpolants, 0 QuantifiedInterpolants, 5408 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 RESULT: Ultimate proved your program to be incorrect! [2021-12-17 22:20:20,671 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE