./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix036_power.opt_rmo.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/mix036_power.opt_rmo.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 f5d83fc7ee9b26859e9993ee2fcff801f4a9d92dea17a48a6a39594bb6b759ca --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 22:19:12,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 22:19:12,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 22:19:12,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 22:19:12,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 22:19:12,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 22:19:12,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 22:19:12,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 22:19:12,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 22:19:12,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 22:19:12,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 22:19:12,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 22:19:12,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 22:19:12,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 22:19:12,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 22:19:12,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 22:19:12,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 22:19:12,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 22:19:12,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 22:19:12,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 22:19:12,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 22:19:12,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 22:19:12,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 22:19:12,830 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 22:19:12,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 22:19:12,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 22:19:12,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 22:19:12,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 22:19:12,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 22:19:12,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 22:19:12,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 22:19:12,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 22:19:12,839 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 22:19:12,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 22:19:12,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 22:19:12,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 22:19:12,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 22:19:12,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 22:19:12,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 22:19:12,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 22:19:12,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 22:19:12,845 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 22:19:12,862 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 22:19:12,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 22:19:12,863 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 22:19:12,863 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 22:19:12,864 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 22:19:12,864 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 22:19:12,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 22:19:12,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 22:19:12,865 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 22:19:12,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 22:19:12,866 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 22:19:12,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 22:19:12,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 22:19:12,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 22:19:12,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 22:19:12,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 22:19:12,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 22:19:12,867 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 22:19:12,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 22:19:12,867 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 22:19:12,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 22:19:12,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 22:19:12,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 22:19:12,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 22:19:12,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 22:19:12,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 22:19:12,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 22:19:12,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 22:19:12,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 22:19:12,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 22:19:12,868 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 22:19:12,869 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 22:19:12,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 22:19:12,869 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 22:19:12,869 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5d83fc7ee9b26859e9993ee2fcff801f4a9d92dea17a48a6a39594bb6b759ca [2021-12-17 22:19:13,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 22:19:13,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 22:19:13,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 22:19:13,086 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 22:19:13,088 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 22:19:13,089 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix036_power.opt_rmo.opt.i [2021-12-17 22:19:13,164 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bd055450/5cd4a3a2762b44c1ba5b0c6b25981e4c/FLAG7d9e8378d [2021-12-17 22:19:13,493 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 22:19:13,494 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix036_power.opt_rmo.opt.i [2021-12-17 22:19:13,515 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bd055450/5cd4a3a2762b44c1ba5b0c6b25981e4c/FLAG7d9e8378d [2021-12-17 22:19:13,885 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bd055450/5cd4a3a2762b44c1ba5b0c6b25981e4c [2021-12-17 22:19:13,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 22:19:13,890 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 22:19:13,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 22:19:13,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 22:19:13,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 22:19:13,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:19:13" (1/1) ... [2021-12-17 22:19:13,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50547b4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:13, skipping insertion in model container [2021-12-17 22:19:13,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:19:13" (1/1) ... [2021-12-17 22:19:13,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 22:19:13,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 22:19:14,106 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/mix036_power.opt_rmo.opt.i[958,971] [2021-12-17 22:19:14,275 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 22:19:14,282 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 22:19:14,293 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/mix036_power.opt_rmo.opt.i[958,971] [2021-12-17 22:19:14,342 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 22:19:14,366 INFO L208 MainTranslator]: Completed translation [2021-12-17 22:19:14,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:14 WrapperNode [2021-12-17 22:19:14,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 22:19:14,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 22:19:14,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 22:19:14,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 22:19:14,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:14" (1/1) ... [2021-12-17 22:19:14,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:14" (1/1) ... [2021-12-17 22:19:14,402 INFO L137 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 195 [2021-12-17 22:19:14,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 22:19:14,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 22:19:14,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 22:19:14,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 22:19:14,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:14" (1/1) ... [2021-12-17 22:19:14,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:14" (1/1) ... [2021-12-17 22:19:14,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:14" (1/1) ... [2021-12-17 22:19:14,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:14" (1/1) ... [2021-12-17 22:19:14,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:14" (1/1) ... [2021-12-17 22:19:14,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:14" (1/1) ... [2021-12-17 22:19:14,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:14" (1/1) ... [2021-12-17 22:19:14,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 22:19:14,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 22:19:14,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 22:19:14,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 22:19:14,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:14" (1/1) ... [2021-12-17 22:19:14,445 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 22:19:14,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 22:19:14,463 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 22:19:14,480 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 22:19:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 22:19:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-17 22:19:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 22:19:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 22:19:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 22:19:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-12-17 22:19:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-12-17 22:19:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-12-17 22:19:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-12-17 22:19:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-12-17 22:19:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-12-17 22:19:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-12-17 22:19:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-12-17 22:19:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 22:19:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-17 22:19:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 22:19:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 22:19:14,497 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 22:19:14,585 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 22:19:14,586 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 22:19:15,045 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 22:19:15,310 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 22:19:15,310 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-17 22:19:15,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:19:15 BoogieIcfgContainer [2021-12-17 22:19:15,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 22:19:15,315 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 22:19:15,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 22:19:15,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 22:19:15,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 10:19:13" (1/3) ... [2021-12-17 22:19:15,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b672cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:19:15, skipping insertion in model container [2021-12-17 22:19:15,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:19:14" (2/3) ... [2021-12-17 22:19:15,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b672cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:19:15, skipping insertion in model container [2021-12-17 22:19:15,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:19:15" (3/3) ... [2021-12-17 22:19:15,320 INFO L111 eAbstractionObserver]: Analyzing ICFG mix036_power.opt_rmo.opt.i [2021-12-17 22:19:15,323 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-17 22:19:15,323 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 22:19:15,323 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-17 22:19:15,324 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-17 22:19:15,360 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,360 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,361 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,361 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,361 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,361 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,361 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,361 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,362 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,362 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,362 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,362 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,363 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,363 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,363 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,363 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,364 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,364 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,364 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,364 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,365 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,365 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,366 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,366 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,366 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,366 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,366 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,366 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,367 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,367 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,367 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,367 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,367 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,367 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,367 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,367 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,368 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,368 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,368 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,368 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,368 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,368 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,368 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,369 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,369 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,369 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,369 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,369 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,369 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,369 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,369 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,369 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,370 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,370 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,370 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,370 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,370 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,370 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,372 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,372 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,372 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,372 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,373 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,373 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,373 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,373 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,373 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,373 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,373 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,374 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,374 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,374 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,374 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,374 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,375 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,375 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,375 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,376 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,377 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,378 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,378 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,378 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,379 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,379 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,379 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,379 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,379 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,383 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,383 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,383 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,383 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,383 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,383 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,384 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,384 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,384 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,386 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,386 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,386 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,386 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,387 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,387 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,387 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,387 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,387 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,387 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,387 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,387 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,387 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,388 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,388 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,388 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,388 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,388 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,388 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,388 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,389 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,389 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,389 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,389 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,389 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,389 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,389 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,390 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,390 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,390 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,390 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,390 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,390 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,390 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,391 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,391 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,391 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,391 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,391 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,391 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,391 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,392 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,392 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,392 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,392 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,392 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,392 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,392 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,392 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,393 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,393 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,393 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,393 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,394 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,394 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,395 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,395 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,395 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,395 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,395 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,395 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,396 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,396 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,396 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,399 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,399 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,399 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,399 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,400 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,400 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,400 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,400 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,400 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,400 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,401 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,401 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,401 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,401 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,401 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,402 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,402 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,402 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,402 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,402 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,402 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,403 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,403 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,403 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,403 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,403 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,403 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,404 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,404 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,404 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,404 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,404 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,404 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,404 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,404 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,405 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,405 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,405 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,405 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,405 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,405 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,405 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,405 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,406 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,406 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,409 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,409 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,409 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,409 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,409 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,409 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,409 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,409 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:19:15,410 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-17 22:19:15,451 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 22:19:15,458 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 22:19:15,458 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-12-17 22:19:15,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 150 places, 139 transitions, 298 flow [2021-12-17 22:19:15,525 INFO L129 PetriNetUnfolder]: 2/135 cut-off events. [2021-12-17 22:19:15,526 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-17 22:19:15,531 INFO L84 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 135 events. 2/135 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2021-12-17 22:19:15,531 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 139 transitions, 298 flow [2021-12-17 22:19:15,538 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 135 transitions, 282 flow [2021-12-17 22:19:15,555 INFO L129 PetriNetUnfolder]: 0/78 cut-off events. [2021-12-17 22:19:15,555 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-17 22:19:15,555 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:15,556 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] [2021-12-17 22:19:15,556 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:15,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:15,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1381068234, now seen corresponding path program 1 times [2021-12-17 22:19:15,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:15,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674211393] [2021-12-17 22:19:15,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:15,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:19:15,832 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 22:19:15,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:19:15,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674211393] [2021-12-17 22:19:15,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674211393] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:19:15,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:19:15,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 22:19:15,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333472049] [2021-12-17 22:19:15,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:19:15,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 22:19:15,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:19:15,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 22:19:15,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 22:19:15,866 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 139 [2021-12-17 22:19:15,871 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 135 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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 22:19:15,871 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:19:15,871 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 139 [2021-12-17 22:19:15,872 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:19:16,011 INFO L129 PetriNetUnfolder]: 37/322 cut-off events. [2021-12-17 22:19:16,011 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-12-17 22:19:16,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 322 events. 37/322 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1169 event pairs, 19 based on Foata normal form. 10/310 useless extension candidates. Maximal degree in co-relation 359. Up to 51 conditions per place. [2021-12-17 22:19:16,017 INFO L132 encePairwiseOnDemand]: 134/139 looper letters, 12 selfloop transitions, 2 changer transitions 0/135 dead transitions. [2021-12-17 22:19:16,017 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 135 transitions, 313 flow [2021-12-17 22:19:16,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 22:19:16,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-17 22:19:16,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2021-12-17 22:19:16,031 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9448441247002398 [2021-12-17 22:19:16,031 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2021-12-17 22:19:16,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2021-12-17 22:19:16,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:19:16,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2021-12-17 22:19:16,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 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 22:19:16,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 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 22:19:16,045 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 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 22:19:16,046 INFO L186 Difference]: Start difference. First operand has 146 places, 135 transitions, 282 flow. Second operand 3 states and 394 transitions. [2021-12-17 22:19:16,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 135 transitions, 313 flow [2021-12-17 22:19:16,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 135 transitions, 308 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-17 22:19:16,053 INFO L242 Difference]: Finished difference. Result has 142 places, 131 transitions, 274 flow [2021-12-17 22:19:16,054 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=142, PETRI_TRANSITIONS=131} [2021-12-17 22:19:16,058 INFO L334 CegarLoopForPetriNet]: 146 programPoint places, -4 predicate places. [2021-12-17 22:19:16,058 INFO L470 AbstractCegarLoop]: Abstraction has has 142 places, 131 transitions, 274 flow [2021-12-17 22:19:16,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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 22:19:16,059 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:16,059 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 22:19:16,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 22:19:16,060 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:16,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:16,060 INFO L85 PathProgramCache]: Analyzing trace with hash -2039699673, now seen corresponding path program 1 times [2021-12-17 22:19:16,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:16,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465984848] [2021-12-17 22:19:16,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:16,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:19:16,313 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 22:19:16,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:19:16,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465984848] [2021-12-17 22:19:16,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465984848] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:19:16,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:19:16,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 22:19:16,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754638886] [2021-12-17 22:19:16,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:19:16,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 22:19:16,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:19:16,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 22:19:16,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 22:19:16,319 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 139 [2021-12-17 22:19:16,320 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 131 transitions, 274 flow. Second operand has 7 states, 7 states have (on average 112.28571428571429) internal successors, (786), 7 states have internal predecessors, (786), 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 22:19:16,320 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:19:16,320 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 139 [2021-12-17 22:19:16,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:19:16,975 INFO L129 PetriNetUnfolder]: 1738/4377 cut-off events. [2021-12-17 22:19:16,975 INFO L130 PetriNetUnfolder]: For 188/188 co-relation queries the response was YES. [2021-12-17 22:19:16,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7117 conditions, 4377 events. 1738/4377 cut-off events. For 188/188 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 36468 event pairs, 298 based on Foata normal form. 0/4278 useless extension candidates. Maximal degree in co-relation 7054. Up to 1300 conditions per place. [2021-12-17 22:19:16,997 INFO L132 encePairwiseOnDemand]: 133/139 looper letters, 28 selfloop transitions, 2 changer transitions 62/185 dead transitions. [2021-12-17 22:19:16,997 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 185 transitions, 554 flow [2021-12-17 22:19:16,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 22:19:16,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-17 22:19:16,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1071 transitions. [2021-12-17 22:19:17,000 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8561151079136691 [2021-12-17 22:19:17,000 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1071 transitions. [2021-12-17 22:19:17,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1071 transitions. [2021-12-17 22:19:17,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:19:17,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1071 transitions. [2021-12-17 22:19:17,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 119.0) internal successors, (1071), 9 states have internal predecessors, (1071), 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 22:19:17,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 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 22:19:17,005 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 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 22:19:17,005 INFO L186 Difference]: Start difference. First operand has 142 places, 131 transitions, 274 flow. Second operand 9 states and 1071 transitions. [2021-12-17 22:19:17,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 185 transitions, 554 flow [2021-12-17 22:19:17,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 185 transitions, 536 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-17 22:19:17,010 INFO L242 Difference]: Finished difference. Result has 155 places, 117 transitions, 262 flow [2021-12-17 22:19:17,010 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=262, PETRI_PLACES=155, PETRI_TRANSITIONS=117} [2021-12-17 22:19:17,011 INFO L334 CegarLoopForPetriNet]: 146 programPoint places, 9 predicate places. [2021-12-17 22:19:17,011 INFO L470 AbstractCegarLoop]: Abstraction has has 155 places, 117 transitions, 262 flow [2021-12-17 22:19:17,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 112.28571428571429) internal successors, (786), 7 states have internal predecessors, (786), 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 22:19:17,012 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:17,012 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 22:19:17,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 22:19:17,012 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:17,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:17,013 INFO L85 PathProgramCache]: Analyzing trace with hash 560124009, now seen corresponding path program 1 times [2021-12-17 22:19:17,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:17,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462038254] [2021-12-17 22:19:17,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:17,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:19:17,165 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 22:19:17,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:19:17,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462038254] [2021-12-17 22:19:17,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462038254] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:19:17,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:19:17,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 22:19:17,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158119959] [2021-12-17 22:19:17,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:19:17,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 22:19:17,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:19:17,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 22:19:17,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 22:19:17,167 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 139 [2021-12-17 22:19:17,167 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 117 transitions, 262 flow. Second operand has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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 22:19:17,167 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:19:17,167 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 139 [2021-12-17 22:19:17,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:19:17,761 INFO L129 PetriNetUnfolder]: 2005/3857 cut-off events. [2021-12-17 22:19:17,761 INFO L130 PetriNetUnfolder]: For 181/181 co-relation queries the response was YES. [2021-12-17 22:19:17,770 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7247 conditions, 3857 events. 2005/3857 cut-off events. For 181/181 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 28862 event pairs, 58 based on Foata normal form. 0/3777 useless extension candidates. Maximal degree in co-relation 7181. Up to 1189 conditions per place. [2021-12-17 22:19:17,781 INFO L132 encePairwiseOnDemand]: 128/139 looper letters, 32 selfloop transitions, 7 changer transitions 50/185 dead transitions. [2021-12-17 22:19:17,782 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 185 transitions, 582 flow [2021-12-17 22:19:17,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-17 22:19:17,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-17 22:19:17,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1231 transitions. [2021-12-17 22:19:17,784 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8856115107913669 [2021-12-17 22:19:17,784 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1231 transitions. [2021-12-17 22:19:17,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1231 transitions. [2021-12-17 22:19:17,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:19:17,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1231 transitions. [2021-12-17 22:19:17,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 123.1) internal successors, (1231), 10 states have internal predecessors, (1231), 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 22:19:17,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 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 22:19:17,789 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 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 22:19:17,790 INFO L186 Difference]: Start difference. First operand has 155 places, 117 transitions, 262 flow. Second operand 10 states and 1231 transitions. [2021-12-17 22:19:17,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 185 transitions, 582 flow [2021-12-17 22:19:17,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 185 transitions, 566 flow, removed 6 selfloop flow, removed 8 redundant places. [2021-12-17 22:19:17,799 INFO L242 Difference]: Finished difference. Result has 142 places, 120 transitions, 312 flow [2021-12-17 22:19:17,800 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=312, PETRI_PLACES=142, PETRI_TRANSITIONS=120} [2021-12-17 22:19:17,800 INFO L334 CegarLoopForPetriNet]: 146 programPoint places, -4 predicate places. [2021-12-17 22:19:17,800 INFO L470 AbstractCegarLoop]: Abstraction has has 142 places, 120 transitions, 312 flow [2021-12-17 22:19:17,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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 22:19:17,801 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:17,801 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] [2021-12-17 22:19:17,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 22:19:17,802 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:17,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:17,802 INFO L85 PathProgramCache]: Analyzing trace with hash 748444305, now seen corresponding path program 1 times [2021-12-17 22:19:17,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:17,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141159251] [2021-12-17 22:19:17,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:17,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:19:17,906 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 22:19:17,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:19:17,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141159251] [2021-12-17 22:19:17,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141159251] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:19:17,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:19:17,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 22:19:17,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811661313] [2021-12-17 22:19:17,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:19:17,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 22:19:17,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:19:17,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 22:19:17,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 22:19:17,908 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 139 [2021-12-17 22:19:17,909 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 120 transitions, 312 flow. Second operand has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 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 22:19:17,909 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:19:17,910 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 139 [2021-12-17 22:19:17,910 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:19:18,316 INFO L129 PetriNetUnfolder]: 1013/2246 cut-off events. [2021-12-17 22:19:18,316 INFO L130 PetriNetUnfolder]: For 2517/2545 co-relation queries the response was YES. [2021-12-17 22:19:18,321 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6211 conditions, 2246 events. 1013/2246 cut-off events. For 2517/2545 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 16289 event pairs, 19 based on Foata normal form. 60/2288 useless extension candidates. Maximal degree in co-relation 6144. Up to 691 conditions per place. [2021-12-17 22:19:18,328 INFO L132 encePairwiseOnDemand]: 129/139 looper letters, 38 selfloop transitions, 11 changer transitions 39/184 dead transitions. [2021-12-17 22:19:18,328 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 184 transitions, 789 flow [2021-12-17 22:19:18,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-17 22:19:18,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-17 22:19:18,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1230 transitions. [2021-12-17 22:19:18,330 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8848920863309353 [2021-12-17 22:19:18,330 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1230 transitions. [2021-12-17 22:19:18,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1230 transitions. [2021-12-17 22:19:18,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:19:18,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1230 transitions. [2021-12-17 22:19:18,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 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 22:19:18,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 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 22:19:18,335 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 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 22:19:18,335 INFO L186 Difference]: Start difference. First operand has 142 places, 120 transitions, 312 flow. Second operand 10 states and 1230 transitions. [2021-12-17 22:19:18,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 184 transitions, 789 flow [2021-12-17 22:19:18,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 184 transitions, 764 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-12-17 22:19:18,342 INFO L242 Difference]: Finished difference. Result has 146 places, 124 transitions, 400 flow [2021-12-17 22:19:18,343 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=400, PETRI_PLACES=146, PETRI_TRANSITIONS=124} [2021-12-17 22:19:18,343 INFO L334 CegarLoopForPetriNet]: 146 programPoint places, 0 predicate places. [2021-12-17 22:19:18,343 INFO L470 AbstractCegarLoop]: Abstraction has has 146 places, 124 transitions, 400 flow [2021-12-17 22:19:18,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 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 22:19:18,344 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:18,344 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] [2021-12-17 22:19:18,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 22:19:18,344 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:18,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:18,345 INFO L85 PathProgramCache]: Analyzing trace with hash 971952211, now seen corresponding path program 1 times [2021-12-17 22:19:18,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:18,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110734620] [2021-12-17 22:19:18,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:18,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:19:18,428 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 22:19:18,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:19:18,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110734620] [2021-12-17 22:19:18,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110734620] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:19:18,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:19:18,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 22:19:18,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746787525] [2021-12-17 22:19:18,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:19:18,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 22:19:18,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:19:18,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 22:19:18,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-17 22:19:18,431 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 139 [2021-12-17 22:19:18,432 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 124 transitions, 400 flow. Second operand has 8 states, 8 states have (on average 115.875) internal successors, (927), 8 states have internal predecessors, (927), 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 22:19:18,432 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:19:18,432 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 139 [2021-12-17 22:19:18,432 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:19:18,710 INFO L129 PetriNetUnfolder]: 424/1119 cut-off events. [2021-12-17 22:19:18,710 INFO L130 PetriNetUnfolder]: For 3051/3059 co-relation queries the response was YES. [2021-12-17 22:19:18,713 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3691 conditions, 1119 events. 424/1119 cut-off events. For 3051/3059 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 6969 event pairs, 17 based on Foata normal form. 32/1135 useless extension candidates. Maximal degree in co-relation 3620. Up to 312 conditions per place. [2021-12-17 22:19:18,716 INFO L132 encePairwiseOnDemand]: 129/139 looper letters, 43 selfloop transitions, 15 changer transitions 39/193 dead transitions. [2021-12-17 22:19:18,717 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 193 transitions, 1060 flow [2021-12-17 22:19:18,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 22:19:18,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-17 22:19:18,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1353 transitions. [2021-12-17 22:19:18,719 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8848920863309353 [2021-12-17 22:19:18,719 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1353 transitions. [2021-12-17 22:19:18,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1353 transitions. [2021-12-17 22:19:18,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:19:18,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1353 transitions. [2021-12-17 22:19:18,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 123.0) internal successors, (1353), 11 states have internal predecessors, (1353), 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 22:19:18,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 139.0) internal successors, (1668), 12 states have internal predecessors, (1668), 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 22:19:18,724 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 139.0) internal successors, (1668), 12 states have internal predecessors, (1668), 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 22:19:18,724 INFO L186 Difference]: Start difference. First operand has 146 places, 124 transitions, 400 flow. Second operand 11 states and 1353 transitions. [2021-12-17 22:19:18,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 193 transitions, 1060 flow [2021-12-17 22:19:18,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 193 transitions, 880 flow, removed 79 selfloop flow, removed 9 redundant places. [2021-12-17 22:19:18,734 INFO L242 Difference]: Finished difference. Result has 149 places, 128 transitions, 450 flow [2021-12-17 22:19:18,734 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=450, PETRI_PLACES=149, PETRI_TRANSITIONS=128} [2021-12-17 22:19:18,735 INFO L334 CegarLoopForPetriNet]: 146 programPoint places, 3 predicate places. [2021-12-17 22:19:18,735 INFO L470 AbstractCegarLoop]: Abstraction has has 149 places, 128 transitions, 450 flow [2021-12-17 22:19:18,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 115.875) internal successors, (927), 8 states have internal predecessors, (927), 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 22:19:18,736 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:18,736 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:19:18,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 22:19:18,736 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:18,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:18,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1142535249, now seen corresponding path program 1 times [2021-12-17 22:19:18,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:18,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849989634] [2021-12-17 22:19:18,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:18,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:19:18,826 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 22:19:18,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:19:18,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849989634] [2021-12-17 22:19:18,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849989634] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:19:18,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:19:18,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 22:19:18,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156322932] [2021-12-17 22:19:18,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:19:18,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 22:19:18,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:19:18,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 22:19:18,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 22:19:18,829 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 139 [2021-12-17 22:19:18,830 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 128 transitions, 450 flow. Second operand has 7 states, 7 states have (on average 117.42857142857143) internal successors, (822), 7 states have internal predecessors, (822), 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 22:19:18,830 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:19:18,830 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 139 [2021-12-17 22:19:18,830 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:19:19,077 INFO L129 PetriNetUnfolder]: 277/1091 cut-off events. [2021-12-17 22:19:19,077 INFO L130 PetriNetUnfolder]: For 2690/2920 co-relation queries the response was YES. [2021-12-17 22:19:19,081 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2799 conditions, 1091 events. 277/1091 cut-off events. For 2690/2920 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 7103 event pairs, 30 based on Foata normal form. 43/1087 useless extension candidates. Maximal degree in co-relation 2726. Up to 208 conditions per place. [2021-12-17 22:19:19,086 INFO L132 encePairwiseOnDemand]: 133/139 looper letters, 39 selfloop transitions, 2 changer transitions 17/167 dead transitions. [2021-12-17 22:19:19,086 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 167 transitions, 656 flow [2021-12-17 22:19:19,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 22:19:19,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-17 22:19:19,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 864 transitions. [2021-12-17 22:19:19,088 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8879753340184995 [2021-12-17 22:19:19,089 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 864 transitions. [2021-12-17 22:19:19,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 864 transitions. [2021-12-17 22:19:19,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:19:19,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 864 transitions. [2021-12-17 22:19:19,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 123.42857142857143) internal successors, (864), 7 states have internal predecessors, (864), 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 22:19:19,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 139.0) internal successors, (1112), 8 states have internal predecessors, (1112), 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 22:19:19,092 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 139.0) internal successors, (1112), 8 states have internal predecessors, (1112), 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 22:19:19,092 INFO L186 Difference]: Start difference. First operand has 149 places, 128 transitions, 450 flow. Second operand 7 states and 864 transitions. [2021-12-17 22:19:19,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 167 transitions, 656 flow [2021-12-17 22:19:19,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 167 transitions, 571 flow, removed 29 selfloop flow, removed 10 redundant places. [2021-12-17 22:19:19,101 INFO L242 Difference]: Finished difference. Result has 146 places, 129 transitions, 384 flow [2021-12-17 22:19:19,102 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=384, PETRI_PLACES=146, PETRI_TRANSITIONS=129} [2021-12-17 22:19:19,102 INFO L334 CegarLoopForPetriNet]: 146 programPoint places, 0 predicate places. [2021-12-17 22:19:19,102 INFO L470 AbstractCegarLoop]: Abstraction has has 146 places, 129 transitions, 384 flow [2021-12-17 22:19:19,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 117.42857142857143) internal successors, (822), 7 states have internal predecessors, (822), 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 22:19:19,103 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:19,103 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] [2021-12-17 22:19:19,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 22:19:19,104 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:19,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:19,104 INFO L85 PathProgramCache]: Analyzing trace with hash -664102445, now seen corresponding path program 2 times [2021-12-17 22:19:19,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:19,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902563632] [2021-12-17 22:19:19,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:19,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:19:19,208 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 22:19:19,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:19:19,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902563632] [2021-12-17 22:19:19,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902563632] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:19:19,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:19:19,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 22:19:19,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615699416] [2021-12-17 22:19:19,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:19:19,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 22:19:19,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:19:19,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 22:19:19,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-17 22:19:19,211 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 139 [2021-12-17 22:19:19,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 129 transitions, 384 flow. Second operand has 8 states, 8 states have (on average 110.875) internal successors, (887), 8 states have internal predecessors, (887), 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 22:19:19,212 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:19:19,212 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 139 [2021-12-17 22:19:19,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:19:19,550 INFO L129 PetriNetUnfolder]: 693/2402 cut-off events. [2021-12-17 22:19:19,550 INFO L130 PetriNetUnfolder]: For 2248/2517 co-relation queries the response was YES. [2021-12-17 22:19:19,557 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5222 conditions, 2402 events. 693/2402 cut-off events. For 2248/2517 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 19855 event pairs, 67 based on Foata normal form. 98/2420 useless extension candidates. Maximal degree in co-relation 5147. Up to 478 conditions per place. [2021-12-17 22:19:19,563 INFO L132 encePairwiseOnDemand]: 131/139 looper letters, 50 selfloop transitions, 4 changer transitions 23/179 dead transitions. [2021-12-17 22:19:19,564 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 179 transitions, 687 flow [2021-12-17 22:19:19,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 22:19:19,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-17 22:19:19,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 940 transitions. [2021-12-17 22:19:19,566 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8453237410071942 [2021-12-17 22:19:19,566 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 940 transitions. [2021-12-17 22:19:19,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 940 transitions. [2021-12-17 22:19:19,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:19:19,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 940 transitions. [2021-12-17 22:19:19,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 117.5) internal successors, (940), 8 states have internal predecessors, (940), 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 22:19:19,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 139.0) internal successors, (1251), 9 states have internal predecessors, (1251), 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 22:19:19,570 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 139.0) internal successors, (1251), 9 states have internal predecessors, (1251), 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 22:19:19,570 INFO L186 Difference]: Start difference. First operand has 146 places, 129 transitions, 384 flow. Second operand 8 states and 940 transitions. [2021-12-17 22:19:19,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 179 transitions, 687 flow [2021-12-17 22:19:19,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 179 transitions, 664 flow, removed 11 selfloop flow, removed 4 redundant places. [2021-12-17 22:19:19,579 INFO L242 Difference]: Finished difference. Result has 151 places, 130 transitions, 400 flow [2021-12-17 22:19:19,579 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=400, PETRI_PLACES=151, PETRI_TRANSITIONS=130} [2021-12-17 22:19:19,580 INFO L334 CegarLoopForPetriNet]: 146 programPoint places, 5 predicate places. [2021-12-17 22:19:19,580 INFO L470 AbstractCegarLoop]: Abstraction has has 151 places, 130 transitions, 400 flow [2021-12-17 22:19:19,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 110.875) internal successors, (887), 8 states have internal predecessors, (887), 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 22:19:19,581 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:19,581 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] [2021-12-17 22:19:19,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 22:19:19,581 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:19,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:19,582 INFO L85 PathProgramCache]: Analyzing trace with hash -177037027, now seen corresponding path program 3 times [2021-12-17 22:19:19,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:19,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059415614] [2021-12-17 22:19:19,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:19,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:19:19,676 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 22:19:19,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:19:19,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059415614] [2021-12-17 22:19:19,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059415614] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:19:19,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:19:19,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 22:19:19,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590216592] [2021-12-17 22:19:19,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:19:19,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 22:19:19,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:19:19,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 22:19:19,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-17 22:19:19,679 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 139 [2021-12-17 22:19:19,679 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 130 transitions, 400 flow. Second operand has 9 states, 9 states have (on average 115.88888888888889) internal successors, (1043), 9 states have internal predecessors, (1043), 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 22:19:19,679 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:19:19,680 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 139 [2021-12-17 22:19:19,680 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:19:20,003 INFO L129 PetriNetUnfolder]: 670/1849 cut-off events. [2021-12-17 22:19:20,004 INFO L130 PetriNetUnfolder]: For 1951/2053 co-relation queries the response was YES. [2021-12-17 22:19:20,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4623 conditions, 1849 events. 670/1849 cut-off events. For 1951/2053 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 13865 event pairs, 79 based on Foata normal form. 64/1793 useless extension candidates. Maximal degree in co-relation 4604. Up to 327 conditions per place. [2021-12-17 22:19:20,013 INFO L132 encePairwiseOnDemand]: 129/139 looper letters, 26 selfloop transitions, 19 changer transitions 28/171 dead transitions. [2021-12-17 22:19:20,013 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 171 transitions, 737 flow [2021-12-17 22:19:20,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 22:19:20,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-17 22:19:20,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1443 transitions. [2021-12-17 22:19:20,016 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8651079136690647 [2021-12-17 22:19:20,016 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1443 transitions. [2021-12-17 22:19:20,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1443 transitions. [2021-12-17 22:19:20,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:19:20,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1443 transitions. [2021-12-17 22:19:20,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 120.25) internal successors, (1443), 12 states have internal predecessors, (1443), 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 22:19:20,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 139.0) internal successors, (1807), 13 states have internal predecessors, (1807), 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 22:19:20,021 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 139.0) internal successors, (1807), 13 states have internal predecessors, (1807), 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 22:19:20,021 INFO L186 Difference]: Start difference. First operand has 151 places, 130 transitions, 400 flow. Second operand 12 states and 1443 transitions. [2021-12-17 22:19:20,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 171 transitions, 737 flow [2021-12-17 22:19:20,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 171 transitions, 698 flow, removed 16 selfloop flow, removed 6 redundant places. [2021-12-17 22:19:20,028 INFO L242 Difference]: Finished difference. Result has 159 places, 130 transitions, 440 flow [2021-12-17 22:19:20,029 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=440, PETRI_PLACES=159, PETRI_TRANSITIONS=130} [2021-12-17 22:19:20,029 INFO L334 CegarLoopForPetriNet]: 146 programPoint places, 13 predicate places. [2021-12-17 22:19:20,029 INFO L470 AbstractCegarLoop]: Abstraction has has 159 places, 130 transitions, 440 flow [2021-12-17 22:19:20,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 115.88888888888889) internal successors, (1043), 9 states have internal predecessors, (1043), 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 22:19:20,030 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:20,030 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, 1, 1, 1] [2021-12-17 22:19:20,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 22:19:20,030 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:20,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:20,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1132959034, now seen corresponding path program 1 times [2021-12-17 22:19:20,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:20,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85329815] [2021-12-17 22:19:20,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:20,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:19:20,192 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 22:19:20,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:19:20,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85329815] [2021-12-17 22:19:20,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85329815] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:19:20,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:19:20,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 22:19:20,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770153260] [2021-12-17 22:19:20,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:19:20,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 22:19:20,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:19:20,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 22:19:20,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 22:19:20,195 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 139 [2021-12-17 22:19:20,196 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 130 transitions, 440 flow. Second operand has 9 states, 9 states have (on average 109.11111111111111) internal successors, (982), 9 states have internal predecessors, (982), 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 22:19:20,196 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:19:20,196 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 139 [2021-12-17 22:19:20,196 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:19:20,611 INFO L129 PetriNetUnfolder]: 880/2596 cut-off events. [2021-12-17 22:19:20,612 INFO L130 PetriNetUnfolder]: For 2451/2685 co-relation queries the response was YES. [2021-12-17 22:19:20,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6399 conditions, 2596 events. 880/2596 cut-off events. For 2451/2685 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 22078 event pairs, 84 based on Foata normal form. 1/2494 useless extension candidates. Maximal degree in co-relation 6316. Up to 517 conditions per place. [2021-12-17 22:19:20,632 INFO L132 encePairwiseOnDemand]: 124/139 looper letters, 32 selfloop transitions, 20 changer transitions 14/166 dead transitions. [2021-12-17 22:19:20,632 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 166 transitions, 690 flow [2021-12-17 22:19:20,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-17 22:19:20,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-17 22:19:20,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1118 transitions. [2021-12-17 22:19:20,634 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8043165467625899 [2021-12-17 22:19:20,635 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1118 transitions. [2021-12-17 22:19:20,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1118 transitions. [2021-12-17 22:19:20,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:19:20,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1118 transitions. [2021-12-17 22:19:20,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 111.8) internal successors, (1118), 10 states have internal predecessors, (1118), 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 22:19:20,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 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 22:19:20,639 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 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 22:19:20,639 INFO L186 Difference]: Start difference. First operand has 159 places, 130 transitions, 440 flow. Second operand 10 states and 1118 transitions. [2021-12-17 22:19:20,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 166 transitions, 690 flow [2021-12-17 22:19:20,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 166 transitions, 572 flow, removed 27 selfloop flow, removed 17 redundant places. [2021-12-17 22:19:20,661 INFO L242 Difference]: Finished difference. Result has 154 places, 146 transitions, 475 flow [2021-12-17 22:19:20,661 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=475, PETRI_PLACES=154, PETRI_TRANSITIONS=146} [2021-12-17 22:19:20,662 INFO L334 CegarLoopForPetriNet]: 146 programPoint places, 8 predicate places. [2021-12-17 22:19:20,662 INFO L470 AbstractCegarLoop]: Abstraction has has 154 places, 146 transitions, 475 flow [2021-12-17 22:19:20,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 109.11111111111111) internal successors, (982), 9 states have internal predecessors, (982), 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 22:19:20,663 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:20,663 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, 1, 1, 1] [2021-12-17 22:19:20,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 22:19:20,667 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:20,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:20,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1812500980, now seen corresponding path program 2 times [2021-12-17 22:19:20,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:20,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352362357] [2021-12-17 22:19:20,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:20,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:19:20,814 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 22:19:20,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:19:20,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352362357] [2021-12-17 22:19:20,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352362357] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:19:20,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:19:20,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 22:19:20,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47775173] [2021-12-17 22:19:20,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:19:20,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 22:19:20,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:19:20,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 22:19:20,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 22:19:20,820 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 139 [2021-12-17 22:19:20,821 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 146 transitions, 475 flow. Second operand has 9 states, 9 states have (on average 114.44444444444444) internal successors, (1030), 9 states have internal predecessors, (1030), 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 22:19:20,821 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:19:20,821 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 139 [2021-12-17 22:19:20,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:19:21,226 INFO L129 PetriNetUnfolder]: 583/2240 cut-off events. [2021-12-17 22:19:21,226 INFO L130 PetriNetUnfolder]: For 820/876 co-relation queries the response was YES. [2021-12-17 22:19:21,236 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4283 conditions, 2240 events. 583/2240 cut-off events. For 820/876 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 21228 event pairs, 46 based on Foata normal form. 17/2140 useless extension candidates. Maximal degree in co-relation 4265. Up to 368 conditions per place. [2021-12-17 22:19:21,255 INFO L132 encePairwiseOnDemand]: 129/139 looper letters, 27 selfloop transitions, 14 changer transitions 6/163 dead transitions. [2021-12-17 22:19:21,256 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 163 transitions, 645 flow [2021-12-17 22:19:21,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-17 22:19:21,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-17 22:19:21,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1158 transitions. [2021-12-17 22:19:21,258 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8330935251798561 [2021-12-17 22:19:21,258 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1158 transitions. [2021-12-17 22:19:21,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1158 transitions. [2021-12-17 22:19:21,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:19:21,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1158 transitions. [2021-12-17 22:19:21,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 115.8) internal successors, (1158), 10 states have internal predecessors, (1158), 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 22:19:21,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 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 22:19:21,262 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 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 22:19:21,262 INFO L186 Difference]: Start difference. First operand has 154 places, 146 transitions, 475 flow. Second operand 10 states and 1158 transitions. [2021-12-17 22:19:21,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 163 transitions, 645 flow [2021-12-17 22:19:21,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 163 transitions, 629 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-12-17 22:19:21,280 INFO L242 Difference]: Finished difference. Result has 161 places, 153 transitions, 568 flow [2021-12-17 22:19:21,281 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=568, PETRI_PLACES=161, PETRI_TRANSITIONS=153} [2021-12-17 22:19:21,282 INFO L334 CegarLoopForPetriNet]: 146 programPoint places, 15 predicate places. [2021-12-17 22:19:21,282 INFO L470 AbstractCegarLoop]: Abstraction has has 161 places, 153 transitions, 568 flow [2021-12-17 22:19:21,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 114.44444444444444) internal successors, (1030), 9 states have internal predecessors, (1030), 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 22:19:21,283 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:21,283 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, 1, 1, 1] [2021-12-17 22:19:21,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 22:19:21,283 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:21,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:21,289 INFO L85 PathProgramCache]: Analyzing trace with hash -826049296, now seen corresponding path program 3 times [2021-12-17 22:19:21,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:21,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856463138] [2021-12-17 22:19:21,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:21,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:19:21,561 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 22:19:21,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:19:21,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856463138] [2021-12-17 22:19:21,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856463138] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:19:21,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:19:21,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 22:19:21,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264357834] [2021-12-17 22:19:21,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:19:21,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 22:19:21,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:19:21,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 22:19:21,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-12-17 22:19:21,563 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 139 [2021-12-17 22:19:21,565 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 153 transitions, 568 flow. Second operand has 12 states, 12 states have (on average 112.0) internal successors, (1344), 12 states have internal predecessors, (1344), 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 22:19:21,565 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:19:21,565 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 139 [2021-12-17 22:19:21,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:19:21,719 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([935] L772-->L788: Formula: (let ((.cse22 (= 0 (mod v_~y$r_buff1_thd2~0_141 256))) (.cse31 (= 0 (mod v_~y$w_buff1_used~0_276 256))) (.cse11 (= 0 (mod v_~y$r_buff0_thd2~0_184 256)))) (let ((.cse2 (= 0 (mod v_~weak$$choice2~0_88 256))) (.cse25 (and .cse31 .cse11)) (.cse9 (and .cse22 .cse11)) (.cse19 (not .cse22)) (.cse5 (not .cse11)) (.cse30 (= 0 (mod v_~y$w_buff0_used~0_382 256))) (.cse8 (= 0 (mod v_~y$w_buff0_used~0_381 256))) (.cse10 (= 0 (mod v_~y$w_buff1_used~0_275 256)))) (let ((.cse4 (not .cse10)) (.cse3 (not .cse8)) (.cse7 (or .cse8 .cse11)) (.cse17 (or .cse30 .cse11)) (.cse6 (or .cse19 .cse5)) (.cse14 (not .cse30)) (.cse15 (or (not .cse31) .cse5)) (.cse13 (or .cse25 .cse30 .cse9)) (.cse0 (not .cse2))) (and (let ((.cse1 (= |v_P1Thread1of1ForFork3_#t~ite19_1| |v_P1_#t~ite19_73|))) (or (and .cse0 (= v_~y$r_buff0_thd2~0_183 v_~y$r_buff0_thd2~0_184) .cse1 (= |v_P1Thread1of1ForFork3_#t~ite20_1| |v_P1_#t~ite20_65|)) (and (= v_~y$r_buff0_thd2~0_183 |v_P1_#t~ite20_65|) .cse2 (or (and .cse3 (or .cse4 .cse5) .cse6 (= |v_P1_#t~ite20_65| |v_P1_#t~ite19_73|) (or (and .cse3 .cse5 (= |v_P1_#t~ite19_73| 0)) (and (= |v_P1_#t~ite19_73| v_~y$r_buff0_thd2~0_184) .cse7))) (and (= |v_P1_#t~ite20_65| v_~y$r_buff0_thd2~0_184) .cse1 (or .cse8 .cse9 (and .cse10 .cse11))))))) (= v_~weak$$choice0~0_11 |v_P1Thread1of1ForFork3_#t~nondet3_1|) (let ((.cse12 (= |v_P1Thread1of1ForFork3_#t~ite7_1| |v_P1_#t~ite7_51|))) (or (and (= v_~y$w_buff0~0_97 |v_P1_#t~ite8_43|) .cse2 (or (and .cse12 .cse13 (= |v_P1_#t~ite8_43| v_~y$w_buff0~0_98)) (and .cse6 .cse14 .cse15 (= |v_P1_#t~ite8_43| |v_P1_#t~ite7_51|) (let ((.cse16 (= |v_P1_#t~ite7_51| v_~y$w_buff0~0_98))) (or (and .cse16 .cse14 .cse5) (and .cse16 .cse17)))))) (and .cse12 .cse0 (= v_~y$w_buff0~0_97 v_~y$w_buff0~0_98) (= |v_P1Thread1of1ForFork3_#t~ite8_1| |v_P1_#t~ite8_43|)))) (let ((.cse23 (= |v_P1Thread1of1ForFork3_#t~ite22_1| |v_P1_#t~ite22_81|))) (or (and .cse2 (= v_~y$r_buff1_thd2~0_140 |v_P1_#t~ite23_73|) (let ((.cse20 (= 0 (mod v_~y$r_buff0_thd2~0_183 256)))) (or (let ((.cse18 (not .cse20))) (and .cse3 (= |v_P1_#t~ite23_73| |v_P1_#t~ite22_81|) (or .cse18 .cse19) (let ((.cse21 (= |v_P1_#t~ite22_81| 0))) (or (and (or .cse8 .cse20) .cse21) (and .cse18 .cse3 .cse21))) (or .cse18 .cse4))) (and (or (and .cse20 .cse10) (and .cse22 .cse20) .cse8) (= |v_P1_#t~ite23_73| v_~y$r_buff1_thd2~0_141) .cse23)))) (and .cse0 (= |v_P1Thread1of1ForFork3_#t~ite23_1| |v_P1_#t~ite23_73|) .cse23 (= v_~y$r_buff1_thd2~0_140 v_~y$r_buff1_thd2~0_141)))) (let ((.cse26 (= |v_P1Thread1of1ForFork3_#t~ite16_1| |v_P1_#t~ite16_53|))) (or (and .cse2 (= v_~y$w_buff1_used~0_275 |v_P1_#t~ite17_49|) (or (and .cse3 .cse6 .cse15 (let ((.cse24 (= |v_P1_#t~ite16_53| 0))) (or (and .cse3 .cse5 .cse24) (and .cse7 .cse24))) (= |v_P1_#t~ite17_49| |v_P1_#t~ite16_53|)) (and (or .cse25 .cse8 .cse9) .cse26 (= |v_P1_#t~ite17_49| v_~y$w_buff1_used~0_276)))) (and .cse0 .cse26 (= v_~y$w_buff1_used~0_275 v_~y$w_buff1_used~0_276) (= |v_P1Thread1of1ForFork3_#t~ite17_1| |v_P1_#t~ite17_49|)))) (let ((.cse27 (= |v_P1Thread1of1ForFork3_#t~ite10_1| |v_P1_#t~ite10_43|))) (or (and .cse0 (= |v_P1Thread1of1ForFork3_#t~ite11_1| |v_P1_#t~ite11_39|) (= v_~y$w_buff1~0_96 v_~y$w_buff1~0_97) .cse27) (and (= v_~y$w_buff1~0_96 |v_P1_#t~ite11_39|) .cse2 (or (and .cse13 .cse27 (= |v_P1_#t~ite11_39| v_~y$w_buff1~0_97)) (and (= |v_P1_#t~ite11_39| |v_P1_#t~ite10_43|) .cse6 .cse14 .cse15 (let ((.cse28 (= |v_P1_#t~ite10_43| v_~y$w_buff1~0_97))) (or (and .cse17 .cse28) (and .cse14 .cse5 .cse28)))))))) (= v_~weak$$choice2~0_88 |v_P1Thread1of1ForFork3_#t~nondet4_1|) (or (and .cse6 .cse14 .cse15 (or (and .cse17 (= |v_P1_#t~ite5_35| v_~y$w_buff1~0_97)) (and .cse14 (= |v_P1_#t~ite5_35| v_~y$w_buff0~0_98) .cse5)) (= v_~__unbuffered_p1_EAX~0_24 |v_P1_#t~ite5_35|)) (and .cse13 (= |v_P1Thread1of1ForFork3_#t~ite5_1| |v_P1_#t~ite5_35|) (= v_~__unbuffered_p1_EAX~0_24 v_~y~0_128))) (let ((.cse29 (= |v_P1Thread1of1ForFork3_#t~ite13_1| |v_P1_#t~ite13_63|))) (or (and (or (and (or (and (= |v_P1_#t~ite13_63| 0) .cse14 .cse5) (and (= |v_P1_#t~ite13_63| v_~y$w_buff0_used~0_382) .cse17)) .cse6 .cse14 (= |v_P1_#t~ite14_57| |v_P1_#t~ite13_63|) .cse15) (and .cse13 (= |v_P1_#t~ite14_57| v_~y$w_buff0_used~0_382) .cse29)) .cse2 (= v_~y$w_buff0_used~0_381 |v_P1_#t~ite14_57|)) (and (= v_~y$w_buff0_used~0_381 v_~y$w_buff0_used~0_382) .cse0 .cse29 (= |v_P1Thread1of1ForFork3_#t~ite14_1| |v_P1_#t~ite14_57|)))) (or (and .cse0 (= v_~y~0_126 v_~y$mem_tmp~0_22)) (and .cse2 (= v_~y~0_126 v_~__unbuffered_p1_EAX~0_24))) (= v_~y$flush_delayed~0_38 0) (= v_~y$mem_tmp~0_22 v_~y~0_128))))) InVars {P1Thread1of1ForFork3_#t~ite17=|v_P1Thread1of1ForFork3_#t~ite17_1|, P1Thread1of1ForFork3_#t~ite16=|v_P1Thread1of1ForFork3_#t~ite16_1|, P1Thread1of1ForFork3_#t~ite19=|v_P1Thread1of1ForFork3_#t~ite19_1|, ~y$w_buff0_used~0=v_~y$w_buff0_used~0_382, P1Thread1of1ForFork3_#t~nondet4=|v_P1Thread1of1ForFork3_#t~nondet4_1|, P1Thread1of1ForFork3_#t~nondet3=|v_P1Thread1of1ForFork3_#t~nondet3_1|, P1Thread1of1ForFork3_#t~ite22=|v_P1Thread1of1ForFork3_#t~ite22_1|, P1Thread1of1ForFork3_#t~ite11=|v_P1Thread1of1ForFork3_#t~ite11_1|, P1Thread1of1ForFork3_#t~ite5=|v_P1Thread1of1ForFork3_#t~ite5_1|, P1Thread1of1ForFork3_#t~ite10=|v_P1Thread1of1ForFork3_#t~ite10_1|, P1Thread1of1ForFork3_#t~ite20=|v_P1Thread1of1ForFork3_#t~ite20_1|, P1Thread1of1ForFork3_#t~ite13=|v_P1Thread1of1ForFork3_#t~ite13_1|, P1Thread1of1ForFork3_#t~ite23=|v_P1Thread1of1ForFork3_#t~ite23_1|, P1Thread1of1ForFork3_#t~ite14=|v_P1Thread1of1ForFork3_#t~ite14_1|, ~y$r_buff1_thd2~0=v_~y$r_buff1_thd2~0_141, P1Thread1of1ForFork3_#t~ite8=|v_P1Thread1of1ForFork3_#t~ite8_1|, ~y$w_buff1~0=v_~y$w_buff1~0_97, P1Thread1of1ForFork3_#t~ite7=|v_P1Thread1of1ForFork3_#t~ite7_1|, ~y$w_buff0~0=v_~y$w_buff0~0_98, ~y$r_buff0_thd2~0=v_~y$r_buff0_thd2~0_184, ~y~0=v_~y~0_128, ~y$w_buff1_used~0=v_~y$w_buff1_used~0_276} OutVars{~y$w_buff0_used~0=v_~y$w_buff0_used~0_381, P1Thread1of1ForFork3_#t~ite21=|v_P1Thread1of1ForFork3_#t~ite21_1|, P1Thread1of1ForFork3_#t~ite22=|v_P1Thread1of1ForFork3_#t~ite22_2|, P1Thread1of1ForFork3_#t~ite20=|v_P1Thread1of1ForFork3_#t~ite20_2|, P1Thread1of1ForFork3_#t~ite25=|v_P1Thread1of1ForFork3_#t~ite25_1|, P1Thread1of1ForFork3_#t~ite23=|v_P1Thread1of1ForFork3_#t~ite23_2|, P1Thread1of1ForFork3_#t~ite24=|v_P1Thread1of1ForFork3_#t~ite24_1|, ~y$mem_tmp~0=v_~y$mem_tmp~0_22, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_24, ~y$w_buff0~0=v_~y$w_buff0~0_97, ~y$flush_delayed~0=v_~y$flush_delayed~0_38, ~y~0=v_~y~0_126, P1Thread1of1ForFork3_#t~ite17=|v_P1Thread1of1ForFork3_#t~ite17_2|, P1Thread1of1ForFork3_#t~ite16=|v_P1Thread1of1ForFork3_#t~ite16_2|, P1Thread1of1ForFork3_#t~ite19=|v_P1Thread1of1ForFork3_#t~ite19_2|, P1Thread1of1ForFork3_#t~ite18=|v_P1Thread1of1ForFork3_#t~ite18_1|, P1Thread1of1ForFork3_#t~nondet4=|v_P1Thread1of1ForFork3_#t~nondet4_2|, P1Thread1of1ForFork3_#t~nondet3=|v_P1Thread1of1ForFork3_#t~nondet3_2|, P1Thread1of1ForFork3_#t~ite11=|v_P1Thread1of1ForFork3_#t~ite11_2|, P1Thread1of1ForFork3_#t~ite6=|v_P1Thread1of1ForFork3_#t~ite6_1|, P1Thread1of1ForFork3_#t~ite10=|v_P1Thread1of1ForFork3_#t~ite10_2|, P1Thread1of1ForFork3_#t~ite5=|v_P1Thread1of1ForFork3_#t~ite5_2|, P1Thread1of1ForFork3_#t~ite13=|v_P1Thread1of1ForFork3_#t~ite13_2|, P1Thread1of1ForFork3_#t~ite12=|v_P1Thread1of1ForFork3_#t~ite12_1|, P1Thread1of1ForFork3_#t~ite15=|v_P1Thread1of1ForFork3_#t~ite15_1|, P1Thread1of1ForFork3_#t~ite14=|v_P1Thread1of1ForFork3_#t~ite14_2|, ~y$r_buff1_thd2~0=v_~y$r_buff1_thd2~0_140, ~weak$$choice0~0=v_~weak$$choice0~0_11, P1Thread1of1ForFork3_#t~ite8=|v_P1Thread1of1ForFork3_#t~ite8_2|, ~y$w_buff1~0=v_~y$w_buff1~0_96, P1Thread1of1ForFork3_#t~ite7=|v_P1Thread1of1ForFork3_#t~ite7_2|, P1Thread1of1ForFork3_#t~ite9=|v_P1Thread1of1ForFork3_#t~ite9_1|, ~y$r_buff0_thd2~0=v_~y$r_buff0_thd2~0_183, ~weak$$choice2~0=v_~weak$$choice2~0_88, ~y$w_buff1_used~0=v_~y$w_buff1_used~0_275} AuxVars[|v_P1_#t~ite20_65|, |v_P1_#t~ite7_51|, |v_P1_#t~ite23_73|, |v_P1_#t~ite11_39|, |v_P1_#t~ite22_81|, |v_P1_#t~ite8_43|, |v_P1_#t~ite5_35|, |v_P1_#t~ite13_63|, |v_P1_#t~ite17_49|, |v_P1_#t~ite19_73|, |v_P1_#t~ite10_43|, |v_P1_#t~ite14_57|, |v_P1_#t~ite16_53|] AssignedVars[~y$w_buff0_used~0, P1Thread1of1ForFork3_#t~ite21, P1Thread1of1ForFork3_#t~ite22, P1Thread1of1ForFork3_#t~ite20, P1Thread1of1ForFork3_#t~ite25, P1Thread1of1ForFork3_#t~ite23, P1Thread1of1ForFork3_#t~ite24, ~y$mem_tmp~0, ~__unbuffered_p1_EAX~0, ~y$w_buff0~0, ~y$flush_delayed~0, ~y~0, P1Thread1of1ForFork3_#t~ite17, P1Thread1of1ForFork3_#t~ite16, P1Thread1of1ForFork3_#t~ite19, P1Thread1of1ForFork3_#t~ite18, P1Thread1of1ForFork3_#t~nondet4, P1Thread1of1ForFork3_#t~nondet3, P1Thread1of1ForFork3_#t~ite11, P1Thread1of1ForFork3_#t~ite6, P1Thread1of1ForFork3_#t~ite10, P1Thread1of1ForFork3_#t~ite5, P1Thread1of1ForFork3_#t~ite13, P1Thread1of1ForFork3_#t~ite12, P1Thread1of1ForFork3_#t~ite15, P1Thread1of1ForFork3_#t~ite14, ~y$r_buff1_thd2~0, ~weak$$choice0~0, P1Thread1of1ForFork3_#t~ite8, ~y$w_buff1~0, P1Thread1of1ForFork3_#t~ite7, P1Thread1of1ForFork3_#t~ite9, ~y$r_buff0_thd2~0, ~weak$$choice2~0, ~y$w_buff1_used~0][117], [60#L830true, 408#(and (= ~y$r_buff0_thd2~0 0) (= ~y$r_buff0_thd4~0 0) (not (= ~__unbuffered_p1_EAX~0 0)) (= ~y$w_buff1_used~0 0) (= ~y$w_buff0_used~0 0) (not (= ~y~0 0)) (= ~y$r_buff1_thd2~0 0)), Black: 369#(and (= ~y$r_buff0_thd3~0 1) (= ~y$w_buff0_used~0 1) (= ~y$r_buff0_thd2~0 0) (= 1 ~y$w_buff0~0) (= ~y$r_buff1_thd2~0 0)), Black: 378#(and (= ~y$r_buff0_thd2~0 0) (= 1 ~__unbuffered_p1_EAX~0)), Black: 382#(and (<= (div ~main$tmp_guard1~0 256) 0) (= ~y$r_buff0_thd2~0 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (= 1 ~__unbuffered_p1_EAX~0) (<= 1 ~main$tmp_guard1~0)), Black: 370#(and (= 1 ~y~0) (= ~y$r_buff0_thd2~0 0) (= ~y$r_buff1_thd2~0 0)), 262#(= 1 ~x~0), 376#(and (= 1 ~y~0) (= ~y$r_buff0_thd2~0 0) (= 1 ~__unbuffered_p1_EAX~0) (= ~y$r_buff1_thd2~0 0)), Black: 380#(and (<= (div ~main$tmp_guard1~0 256) 0) (= ~y$r_buff0_thd2~0 0) (= 1 ~__unbuffered_p1_EAX~0) (<= 1 ~main$tmp_guard1~0)), Black: 384#(and (or (<= (+ |ULTIMATE.start___VERIFIER_assert_~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_~expression#1|)) (<= (div ~main$tmp_guard1~0 256) 0) (= ~y$r_buff0_thd2~0 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (= 1 ~__unbuffered_p1_EAX~0) (<= 1 ~main$tmp_guard1~0)), 213#(and (< 0 (+ (div ~main$tmp_guard0~0 256) 1)) (<= ~main$tmp_guard0~0 0) (= ~__unbuffered_cnt~0 0)), 133#L760true, 341#(= 1 ~z~0), P0Thread1of1ForFork1InUse, P3Thread1of1ForFork2InUse, P1Thread1of1ForFork3InUse, P2Thread1of1ForFork0InUse, Black: 268#(and (= 1 ~x~0) (= 1 ~__unbuffered_p0_EAX~0)), 287#(= 1 ~b~0), 83#L820true, 16#L870-3true, Black: 349#(and (or (not (= 1 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p2_EAX~0 0)) (not (= 0 ~__unbuffered_p0_EAX~0)) (not (= 0 ~__unbuffered_p1_EAX~0)) (not (= 0 ~__unbuffered_p3_EBX~0))) (= 1 ~z~0)), Black: 351#(and (= ~y$r_buff0_thd3~0 1) (= ~y$w_buff0_used~0 1) (= ~y$r_buff0_thd3~0 ~z~0) (or (not (= 1 ~__unbuffered_p3_EAX~0)) (not (= 0 ~__unbuffered_p0_EAX~0)) (not (= 0 ~__unbuffered_p2_EAX~0)) (not (= 0 ~__unbuffered_p1_EAX~0)) (not (= 0 ~__unbuffered_p3_EBX~0)))), Black: 342#(and (= ~y$r_buff0_thd3~0 1) (= ~y$w_buff0_used~0 1) (= ~y$r_buff0_thd3~0 ~z~0)), 25#L788true]) [2021-12-17 22:19:21,719 INFO L384 tUnfolder$Statistics]: this new event has 83 ancestors and is not cut-off event [2021-12-17 22:19:21,720 INFO L387 tUnfolder$Statistics]: existing Event has 83 ancestors and is not cut-off event [2021-12-17 22:19:21,720 INFO L387 tUnfolder$Statistics]: existing Event has 83 ancestors and is not cut-off event [2021-12-17 22:19:21,720 INFO L387 tUnfolder$Statistics]: existing Event has 83 ancestors and is not cut-off event [2021-12-17 22:19:21,897 INFO L129 PetriNetUnfolder]: 615/2355 cut-off events. [2021-12-17 22:19:21,898 INFO L130 PetriNetUnfolder]: For 1701/1794 co-relation queries the response was YES. [2021-12-17 22:19:21,907 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4864 conditions, 2355 events. 615/2355 cut-off events. For 1701/1794 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 22571 event pairs, 47 based on Foata normal form. 35/2259 useless extension candidates. Maximal degree in co-relation 4842. Up to 388 conditions per place. [2021-12-17 22:19:21,909 INFO L132 encePairwiseOnDemand]: 129/139 looper letters, 29 selfloop transitions, 12 changer transitions 8/163 dead transitions. [2021-12-17 22:19:21,909 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 163 transitions, 718 flow [2021-12-17 22:19:21,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 22:19:21,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-17 22:19:21,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1247 transitions. [2021-12-17 22:19:21,912 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.815565729234794 [2021-12-17 22:19:21,912 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1247 transitions. [2021-12-17 22:19:21,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1247 transitions. [2021-12-17 22:19:21,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:19:21,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1247 transitions. [2021-12-17 22:19:21,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.36363636363636) internal successors, (1247), 11 states have internal predecessors, (1247), 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 22:19:21,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 139.0) internal successors, (1668), 12 states have internal predecessors, (1668), 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 22:19:21,917 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 139.0) internal successors, (1668), 12 states have internal predecessors, (1668), 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 22:19:21,917 INFO L186 Difference]: Start difference. First operand has 161 places, 153 transitions, 568 flow. Second operand 11 states and 1247 transitions. [2021-12-17 22:19:21,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 163 transitions, 718 flow [2021-12-17 22:19:21,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 163 transitions, 703 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-12-17 22:19:21,924 INFO L242 Difference]: Finished difference. Result has 169 places, 153 transitions, 603 flow [2021-12-17 22:19:21,924 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=557, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=603, PETRI_PLACES=169, PETRI_TRANSITIONS=153} [2021-12-17 22:19:21,924 INFO L334 CegarLoopForPetriNet]: 146 programPoint places, 23 predicate places. [2021-12-17 22:19:21,925 INFO L470 AbstractCegarLoop]: Abstraction has has 169 places, 153 transitions, 603 flow [2021-12-17 22:19:21,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 112.0) internal successors, (1344), 12 states have internal predecessors, (1344), 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 22:19:21,925 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:19:21,926 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, 1, 1, 1] [2021-12-17 22:19:21,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 22:19:21,926 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:19:21,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:19:21,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1326289404, now seen corresponding path program 4 times [2021-12-17 22:19:21,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:19:21,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224143708] [2021-12-17 22:19:21,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:19:21,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:19:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 22:19:21,958 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 22:19:21,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 22:19:22,031 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-17 22:19:22,032 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 22:19:22,033 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2021-12-17 22:19:22,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2021-12-17 22:19:22,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 7 remaining) [2021-12-17 22:19:22,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (3 of 7 remaining) [2021-12-17 22:19:22,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (2 of 7 remaining) [2021-12-17 22:19:22,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION (1 of 7 remaining) [2021-12-17 22:19:22,035 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2021-12-17 22:19:22,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 22:19:22,037 INFO L732 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1, 1, 1] [2021-12-17 22:19:22,041 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-17 22:19:22,041 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 22:19:22,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 10:19:22 BasicIcfg [2021-12-17 22:19:22,176 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 22:19:22,177 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 22:19:22,177 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 22:19:22,177 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 22:19:22,177 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:19:15" (3/4) ... [2021-12-17 22:19:22,179 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-17 22:19:22,308 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 22:19:22,308 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 22:19:22,309 INFO L158 Benchmark]: Toolchain (without parser) took 8418.81ms. Allocated memory was 136.3MB in the beginning and 511.7MB in the end (delta: 375.4MB). Free memory was 102.4MB in the beginning and 435.6MB in the end (delta: -333.2MB). Peak memory consumption was 281.2MB. Max. memory is 16.1GB. [2021-12-17 22:19:22,309 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 79.7MB. Free memory was 36.9MB in the beginning and 36.9MB in the end (delta: 36.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 22:19:22,309 INFO L158 Benchmark]: CACSL2BoogieTranslator took 473.24ms. Allocated memory is still 136.3MB. Free memory was 102.1MB in the beginning and 98.5MB in the end (delta: 3.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-17 22:19:22,310 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.41ms. Allocated memory is still 136.3MB. Free memory was 98.5MB in the beginning and 95.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 22:19:22,310 INFO L158 Benchmark]: Boogie Preprocessor took 21.99ms. Allocated memory is still 136.3MB. Free memory was 95.9MB in the beginning and 93.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 22:19:22,310 INFO L158 Benchmark]: RCFGBuilder took 886.23ms. Allocated memory is still 136.3MB. Free memory was 93.8MB in the beginning and 98.4MB in the end (delta: -4.5MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. [2021-12-17 22:19:22,310 INFO L158 Benchmark]: TraceAbstraction took 6861.73ms. Allocated memory was 136.3MB in the beginning and 425.7MB in the end (delta: 289.4MB). Free memory was 98.0MB in the beginning and 157.4MB in the end (delta: -59.4MB). Peak memory consumption was 231.0MB. Max. memory is 16.1GB. [2021-12-17 22:19:22,311 INFO L158 Benchmark]: Witness Printer took 131.51ms. Allocated memory was 425.7MB in the beginning and 511.7MB in the end (delta: 86.0MB). Free memory was 157.4MB in the beginning and 435.6MB in the end (delta: -278.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2021-12-17 22:19:22,312 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 79.7MB. Free memory was 36.9MB in the beginning and 36.9MB in the end (delta: 36.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 473.24ms. Allocated memory is still 136.3MB. Free memory was 102.1MB in the beginning and 98.5MB in the end (delta: 3.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.41ms. Allocated memory is still 136.3MB. Free memory was 98.5MB in the beginning and 95.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.99ms. Allocated memory is still 136.3MB. Free memory was 95.9MB in the beginning and 93.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 886.23ms. Allocated memory is still 136.3MB. Free memory was 93.8MB in the beginning and 98.4MB in the end (delta: -4.5MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. * TraceAbstraction took 6861.73ms. Allocated memory was 136.3MB in the beginning and 425.7MB in the end (delta: 289.4MB). Free memory was 98.0MB in the beginning and 157.4MB in the end (delta: -59.4MB). Peak memory consumption was 231.0MB. Max. memory is 16.1GB. * Witness Printer took 131.51ms. Allocated memory was 425.7MB in the beginning and 511.7MB in the end (delta: 86.0MB). Free memory was 157.4MB in the beginning and 435.6MB in the end (delta: -278.2MB). Peak memory consumption was 46.1MB. 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_p0_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0] [L714] 0 int __unbuffered_p1_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0] [L716] 0 int __unbuffered_p2_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0] [L718] 0 int __unbuffered_p3_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0] [L720] 0 int __unbuffered_p3_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0] [L722] 0 int a = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0] [L724] 0 int b = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0] [L725] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0] [L726] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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] [L728] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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] [L730] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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] [L731] 0 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, y$flush_delayed=0] [L732] 0 int y$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, y$flush_delayed=0, y$mem_tmp=0] [L733] 0 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L734] 0 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L735] 0 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0] [L736] 0 _Bool y$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0] [L737] 0 _Bool y$r_buff0_thd4; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0] [L738] 0 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0] [L739] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L740] 0 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L741] 0 _Bool y$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0] [L742] 0 _Bool y$r_buff1_thd4; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0] [L743] 0 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0] [L744] 0 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L745] 0 int y$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L746] 0 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L747] 0 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L748] 0 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L750] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L751] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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$$choice0=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L752] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L863] 0 pthread_t t941; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, t941={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L864] FCALL, FORK 0 pthread_create(&t941, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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(&t941, ((void *)0), P0, ((void *)0))=-3, t941={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L865] 0 pthread_t t942; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, t941={5:0}, t942={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L866] FCALL, FORK 0 pthread_create(&t942, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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(&t942, ((void *)0), P1, ((void *)0))=-2, t941={5:0}, t942={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L867] 0 pthread_t t943; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, t941={5:0}, t942={6:0}, t943={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L868] FCALL, FORK 0 pthread_create(&t943, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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(&t943, ((void *)0), P2, ((void *)0))=-1, t941={5:0}, t942={6:0}, t943={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L869] 0 pthread_t t944; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, t941={5:0}, t942={6:0}, t943={7:0}, t944={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L870] FCALL, FORK 0 pthread_create(&t944, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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(&t944, ((void *)0), P3, ((void *)0))=0, t941={5:0}, t942={6:0}, t943={7:0}, t944={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L799] 3 y$w_buff1 = y$w_buff0 [L800] 3 y$w_buff0 = 1 [L801] 3 y$w_buff1_used = y$w_buff0_used [L802] 3 y$w_buff0_used = (_Bool)1 [L803] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L803] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L804] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L805] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L806] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L807] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L808] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L809] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L812] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L829] 4 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L832] 4 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L835] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L838] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L756] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L759] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L771] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L774] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L775] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L776] 2 y$flush_delayed = weak$$choice2 [L777] 2 y$mem_tmp = y [L778] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L778] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L779] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L779] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L780] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L780] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L781] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L781] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L782] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L782] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L783] EXPR 2 weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L783] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L784] EXPR 2 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L784] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L785] 2 __unbuffered_p1_EAX = y [L786] EXPR 2 y$flush_delayed ? y$mem_tmp : y [L786] 2 y = y$flush_delayed ? y$mem_tmp : y [L787] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L815] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L815] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L816] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L816] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L817] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L817] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L818] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L818] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L819] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L819] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L841] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L841] EXPR 4 y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y [L841] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L841] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L842] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L842] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L843] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L843] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L844] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L844] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L845] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 [L845] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 [L764] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L822] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L792] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L848] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L872] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t941={5:0}, t942={6:0}, t943={7:0}, t944={3:0}, weak$$choice0=49, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L874] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) VAL [\old(cond)=1, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, cond=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L874] RET 0 assume_abort_if_not(main$tmp_guard0) [L876] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L876] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L876] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L876] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L877] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L877] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L878] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L878] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L879] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L879] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L880] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L880] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L883] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=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=1, main$tmp_guard1=0, t941={5:0}, t942={6:0}, t943={7:0}, t944={3:0}, weak$$choice0=49, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L885] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression VAL [\old(expression)=0, \old(expression)=1, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - 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: 864]: 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: 870]: 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: 866]: 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: 868]: 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, 175 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: 6.6s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 638 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 638 mSDsluCounter, 628 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1106 mSDsCounter, 156 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1471 IncrementalHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 156 mSolverCounterUnsat, 138 mSDtfsCounter, 1471 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=603occurred in iteration=11, InterpolantAutomatonStates: 101, 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, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1181 NumberOfCodeBlocks, 1181 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1062 ConstructedInterpolants, 0 QuantifiedInterpolants, 5174 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 22:19:22,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE