./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stack-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stack-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa --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 a5e93db72222dd521789305cbf7823ac91f269c62c97020d54f95f5ba14d3fd2 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:42:16,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:42:16,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:42:16,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:42:16,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:42:16,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:42:16,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:42:16,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:42:16,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:42:16,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:42:16,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:42:16,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:42:16,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:42:16,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:42:16,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:42:16,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:42:16,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:42:16,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:42:16,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:42:16,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:42:16,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:42:16,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:42:16,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:42:16,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:42:16,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:42:16,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:42:16,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:42:16,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:42:16,956 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:42:16,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:42:16,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:42:16,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:42:16,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:42:16,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:42:16,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:42:16,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:42:16,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:42:16,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:42:16,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:42:16,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:42:16,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:42:16,964 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 01:42:16,982 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:42:16,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:42:16,989 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:42:16,989 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:42:16,990 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:42:16,990 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:42:16,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:42:16,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:42:16,991 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:42:16,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:42:16,992 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 01:42:16,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:42:16,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 01:42:16,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:42:16,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:42:16,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:42:16,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:42:16,993 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 01:42:16,993 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:42:16,993 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:42:16,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:42:16,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:42:16,994 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:42:16,994 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:42:16,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:42:16,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:42:16,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:42:16,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:42:16,995 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:42:16,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 01:42:16,996 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:42:16,996 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:42:16,996 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:42:16,996 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:42:16,996 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5e93db72222dd521789305cbf7823ac91f269c62c97020d54f95f5ba14d3fd2 [2021-12-07 01:42:17,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:42:17,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:42:17,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:42:17,216 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:42:17,217 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:42:17,218 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/pthread/stack-1.i [2021-12-07 01:42:17,257 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/data/7977de9e5/500f198d316344a8a2c2e2ded4a5140f/FLAGf5899c7bf [2021-12-07 01:42:17,684 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:42:17,685 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/sv-benchmarks/c/pthread/stack-1.i [2021-12-07 01:42:17,697 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/data/7977de9e5/500f198d316344a8a2c2e2ded4a5140f/FLAGf5899c7bf [2021-12-07 01:42:17,710 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/data/7977de9e5/500f198d316344a8a2c2e2ded4a5140f [2021-12-07 01:42:17,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:42:17,713 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:42:17,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:42:17,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:42:17,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:42:17,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:42:17" (1/1) ... [2021-12-07 01:42:17,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5357db11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:17, skipping insertion in model container [2021-12-07 01:42:17,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:42:17" (1/1) ... [2021-12-07 01:42:17,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:42:17,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:42:18,025 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/sv-benchmarks/c/pthread/stack-1.i[41520,41533] [2021-12-07 01:42:18,042 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:42:18,051 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:42:18,078 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/sv-benchmarks/c/pthread/stack-1.i[41520,41533] [2021-12-07 01:42:18,085 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:42:18,126 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:42:18,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:18 WrapperNode [2021-12-07 01:42:18,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:42:18,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:42:18,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:42:18,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:42:18,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:18" (1/1) ... [2021-12-07 01:42:18,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:18" (1/1) ... [2021-12-07 01:42:18,167 INFO L137 Inliner]: procedures = 277, calls = 45, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 154 [2021-12-07 01:42:18,167 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:42:18,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:42:18,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:42:18,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:42:18,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:18" (1/1) ... [2021-12-07 01:42:18,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:18" (1/1) ... [2021-12-07 01:42:18,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:18" (1/1) ... [2021-12-07 01:42:18,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:18" (1/1) ... [2021-12-07 01:42:18,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:18" (1/1) ... [2021-12-07 01:42:18,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:18" (1/1) ... [2021-12-07 01:42:18,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:18" (1/1) ... [2021-12-07 01:42:18,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:42:18,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:42:18,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:42:18,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:42:18,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:18" (1/1) ... [2021-12-07 01:42:18,197 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:42:18,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:42:18,219 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:42:18,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:42:18,249 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-12-07 01:42:18,250 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-12-07 01:42:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-12-07 01:42:18,250 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-12-07 01:42:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 01:42:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 01:42:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 01:42:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 01:42:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-07 01:42:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:42:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 01:42:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:42:18,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:42:18,252 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-07 01:42:18,353 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:42:18,355 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:42:18,560 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:42:18,568 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:42:18,568 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-07 01:42:18,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:42:18 BoogieIcfgContainer [2021-12-07 01:42:18,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:42:18,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:42:18,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:42:18,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:42:18,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:42:17" (1/3) ... [2021-12-07 01:42:18,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d79ef3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:42:18, skipping insertion in model container [2021-12-07 01:42:18,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:18" (2/3) ... [2021-12-07 01:42:18,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d79ef3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:42:18, skipping insertion in model container [2021-12-07 01:42:18,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:42:18" (3/3) ... [2021-12-07 01:42:18,577 INFO L111 eAbstractionObserver]: Analyzing ICFG stack-1.i [2021-12-07 01:42:18,581 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-07 01:42:18,581 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:42:18,581 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-07 01:42:18,582 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-07 01:42:18,607 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,608 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,608 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,608 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,608 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,608 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,608 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,609 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,609 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,609 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,609 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,609 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,609 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,609 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,609 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,610 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,610 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,610 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,610 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,610 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,610 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,610 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,611 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,611 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,611 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,611 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,611 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,611 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,611 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,612 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,612 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,612 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,612 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,612 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,612 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,612 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,613 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,613 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,613 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,613 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,613 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,613 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,613 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,613 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,614 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,614 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,614 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,614 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,614 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,614 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,614 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,614 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,615 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,615 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,615 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,615 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,615 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,615 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,615 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,615 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,615 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,616 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,616 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,616 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,616 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,616 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,616 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,616 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,616 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,616 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,617 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,617 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,617 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,617 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,617 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,617 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,617 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,617 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,618 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,618 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,618 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,618 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,618 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,618 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,618 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,618 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,619 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,619 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,619 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,619 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,619 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,619 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,620 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,620 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,620 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,620 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,620 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,620 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,620 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,621 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,621 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,621 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,621 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,621 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,621 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,621 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,621 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,621 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,622 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,622 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,622 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,622 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,622 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,622 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,622 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,622 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,623 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,623 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,623 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,623 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,623 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,623 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,623 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,623 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,624 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,624 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,624 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,624 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,624 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,624 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,624 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,624 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,625 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,625 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,625 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,625 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,626 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,626 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,626 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,626 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,626 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,626 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,626 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,626 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,627 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,627 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,627 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,627 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,627 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,627 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,627 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,627 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,628 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,628 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,628 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,628 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,628 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,628 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,628 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,629 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,629 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,629 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,629 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,629 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,629 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,629 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,629 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,630 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,630 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,630 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,630 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,630 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,630 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,630 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,630 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,630 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,631 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,631 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,631 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,631 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,631 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,631 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,631 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,631 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,631 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,631 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,632 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,632 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,632 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,632 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,632 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,632 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,632 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,632 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,632 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,632 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,633 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,633 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,633 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,633 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,633 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,633 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,633 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,633 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,634 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,634 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,634 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,634 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,634 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,634 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,634 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,634 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,635 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,635 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,635 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,635 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,635 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,635 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,635 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,635 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,636 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,636 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,636 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,636 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,636 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,636 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,636 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,636 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,636 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,637 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,637 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,637 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,637 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,637 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,637 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,637 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,637 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,637 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,638 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,638 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,638 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,638 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,638 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,638 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,638 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,638 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,640 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,641 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,641 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,641 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,641 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,641 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,641 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,641 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,641 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,642 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,642 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,642 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,642 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,642 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,642 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,642 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,642 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,642 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,643 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,643 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,643 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,643 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,643 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,646 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,646 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,646 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,646 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,646 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,646 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,646 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,646 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,647 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,647 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,647 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,647 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,647 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,647 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,647 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,647 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,647 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,647 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:42:18,649 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-12-07 01:42:18,685 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:42:18,690 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 [2021-12-07 01:42:18,690 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-12-07 01:42:18,701 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 173 places, 176 transitions, 368 flow [2021-12-07 01:42:18,751 INFO L129 PetriNetUnfolder]: 10/174 cut-off events. [2021-12-07 01:42:18,752 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-07 01:42:18,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 174 events. 10/174 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 422 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 126. Up to 3 conditions per place. [2021-12-07 01:42:18,756 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 176 transitions, 368 flow [2021-12-07 01:42:18,761 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 161 places, 164 transitions, 337 flow [2021-12-07 01:42:18,782 INFO L129 PetriNetUnfolder]: 5/130 cut-off events. [2021-12-07 01:42:18,782 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-07 01:42:18,782 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:42:18,783 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:18,783 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-07 01:42:18,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:18,795 INFO L85 PathProgramCache]: Analyzing trace with hash -211887483, now seen corresponding path program 1 times [2021-12-07 01:42:18,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:18,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586584499] [2021-12-07 01:42:18,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:18,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:19,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:19,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:19,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586584499] [2021-12-07 01:42:19,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586584499] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:19,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:19,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:42:19,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22790277] [2021-12-07 01:42:19,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:19,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:42:19,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:19,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:42:19,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:42:19,065 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 176 [2021-12-07 01:42:19,068 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 164 transitions, 337 flow. Second operand has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 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) [2021-12-07 01:42:19,068 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:42:19,068 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 176 [2021-12-07 01:42:19,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:42:19,198 INFO L129 PetriNetUnfolder]: 88/703 cut-off events. [2021-12-07 01:42:19,198 INFO L130 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2021-12-07 01:42:19,202 INFO L84 FinitePrefix]: Finished finitePrefix Result has 886 conditions, 703 events. 88/703 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3125 event pairs, 32 based on Foata normal form. 69/706 useless extension candidates. Maximal degree in co-relation 747. Up to 111 conditions per place. [2021-12-07 01:42:19,205 INFO L132 encePairwiseOnDemand]: 166/176 looper letters, 20 selfloop transitions, 3 changer transitions 0/162 dead transitions. [2021-12-07 01:42:19,205 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 162 transitions, 385 flow [2021-12-07 01:42:19,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:42:19,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-07 01:42:19,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 491 transitions. [2021-12-07 01:42:19,217 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9299242424242424 [2021-12-07 01:42:19,217 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 491 transitions. [2021-12-07 01:42:19,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 491 transitions. [2021-12-07 01:42:19,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:42:19,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 491 transitions. [2021-12-07 01:42:19,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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) [2021-12-07 01:42:19,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 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) [2021-12-07 01:42:19,231 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 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) [2021-12-07 01:42:19,233 INFO L186 Difference]: Start difference. First operand has 161 places, 164 transitions, 337 flow. Second operand 3 states and 491 transitions. [2021-12-07 01:42:19,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 162 transitions, 385 flow [2021-12-07 01:42:19,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 162 transitions, 377 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-12-07 01:42:19,240 INFO L242 Difference]: Finished difference. Result has 157 places, 156 transitions, 331 flow [2021-12-07 01:42:19,242 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=331, PETRI_PLACES=157, PETRI_TRANSITIONS=156} [2021-12-07 01:42:19,244 INFO L334 CegarLoopForPetriNet]: 161 programPoint places, -4 predicate places. [2021-12-07 01:42:19,245 INFO L470 AbstractCegarLoop]: Abstraction has has 157 places, 156 transitions, 331 flow [2021-12-07 01:42:19,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 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) [2021-12-07 01:42:19,245 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:42:19,245 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] [2021-12-07 01:42:19,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 01:42:19,246 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-07 01:42:19,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:19,246 INFO L85 PathProgramCache]: Analyzing trace with hash 2060462298, now seen corresponding path program 1 times [2021-12-07 01:42:19,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:19,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967511709] [2021-12-07 01:42:19,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:19,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:19,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:19,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:19,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:19,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967511709] [2021-12-07 01:42:19,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967511709] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:19,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:19,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:42:19,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824513509] [2021-12-07 01:42:19,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:19,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:42:19,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:19,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:42:19,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:42:19,329 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 176 [2021-12-07 01:42:19,330 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 156 transitions, 331 flow. Second operand has 4 states, 4 states have (on average 157.75) internal successors, (631), 4 states have internal predecessors, (631), 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) [2021-12-07 01:42:19,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:42:19,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 176 [2021-12-07 01:42:19,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:42:19,445 INFO L129 PetriNetUnfolder]: 34/594 cut-off events. [2021-12-07 01:42:19,446 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-12-07 01:42:19,448 INFO L84 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 594 events. 34/594 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2041 event pairs, 11 based on Foata normal form. 0/557 useless extension candidates. Maximal degree in co-relation 411. Up to 45 conditions per place. [2021-12-07 01:42:19,451 INFO L132 encePairwiseOnDemand]: 171/176 looper letters, 16 selfloop transitions, 4 changer transitions 0/164 dead transitions. [2021-12-07 01:42:19,451 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 164 transitions, 392 flow [2021-12-07 01:42:19,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 01:42:19,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-12-07 01:42:19,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 645 transitions. [2021-12-07 01:42:19,454 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9161931818181818 [2021-12-07 01:42:19,454 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 645 transitions. [2021-12-07 01:42:19,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 645 transitions. [2021-12-07 01:42:19,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:42:19,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 645 transitions. [2021-12-07 01:42:19,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 161.25) internal successors, (645), 4 states have internal predecessors, (645), 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) [2021-12-07 01:42:19,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 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) [2021-12-07 01:42:19,460 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 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) [2021-12-07 01:42:19,460 INFO L186 Difference]: Start difference. First operand has 157 places, 156 transitions, 331 flow. Second operand 4 states and 645 transitions. [2021-12-07 01:42:19,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 164 transitions, 392 flow [2021-12-07 01:42:19,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 164 transitions, 389 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-07 01:42:19,464 INFO L242 Difference]: Finished difference. Result has 161 places, 159 transitions, 356 flow [2021-12-07 01:42:19,464 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=356, PETRI_PLACES=161, PETRI_TRANSITIONS=159} [2021-12-07 01:42:19,465 INFO L334 CegarLoopForPetriNet]: 161 programPoint places, 0 predicate places. [2021-12-07 01:42:19,465 INFO L470 AbstractCegarLoop]: Abstraction has has 161 places, 159 transitions, 356 flow [2021-12-07 01:42:19,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 157.75) internal successors, (631), 4 states have internal predecessors, (631), 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) [2021-12-07 01:42:19,466 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:42:19,466 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] [2021-12-07 01:42:19,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 01:42:19,466 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-07 01:42:19,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:19,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1664854431, now seen corresponding path program 1 times [2021-12-07 01:42:19,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:19,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663257577] [2021-12-07 01:42:19,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:19,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:19,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:19,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:19,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663257577] [2021-12-07 01:42:19,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663257577] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:19,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:19,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:42:19,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293491387] [2021-12-07 01:42:19,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:19,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:42:19,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:19,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:42:19,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:42:19,536 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 176 [2021-12-07 01:42:19,537 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 159 transitions, 356 flow. Second operand has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 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) [2021-12-07 01:42:19,537 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:42:19,537 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 176 [2021-12-07 01:42:19,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:42:19,714 INFO L129 PetriNetUnfolder]: 127/1271 cut-off events. [2021-12-07 01:42:19,714 INFO L130 PetriNetUnfolder]: For 90/100 co-relation queries the response was YES. [2021-12-07 01:42:19,718 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1676 conditions, 1271 events. 127/1271 cut-off events. For 90/100 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6983 event pairs, 33 based on Foata normal form. 12/1209 useless extension candidates. Maximal degree in co-relation 1334. Up to 135 conditions per place. [2021-12-07 01:42:19,723 INFO L132 encePairwiseOnDemand]: 170/176 looper letters, 25 selfloop transitions, 4 changer transitions 0/171 dead transitions. [2021-12-07 01:42:19,723 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 171 transitions, 447 flow [2021-12-07 01:42:19,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:42:19,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-07 01:42:19,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 486 transitions. [2021-12-07 01:42:19,725 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9204545454545454 [2021-12-07 01:42:19,725 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 486 transitions. [2021-12-07 01:42:19,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 486 transitions. [2021-12-07 01:42:19,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:42:19,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 486 transitions. [2021-12-07 01:42:19,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 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) [2021-12-07 01:42:19,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 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) [2021-12-07 01:42:19,728 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 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) [2021-12-07 01:42:19,728 INFO L186 Difference]: Start difference. First operand has 161 places, 159 transitions, 356 flow. Second operand 3 states and 486 transitions. [2021-12-07 01:42:19,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 171 transitions, 447 flow [2021-12-07 01:42:19,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 171 transitions, 445 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-07 01:42:19,733 INFO L242 Difference]: Finished difference. Result has 164 places, 163 transitions, 396 flow [2021-12-07 01:42:19,733 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=396, PETRI_PLACES=164, PETRI_TRANSITIONS=163} [2021-12-07 01:42:19,734 INFO L334 CegarLoopForPetriNet]: 161 programPoint places, 3 predicate places. [2021-12-07 01:42:19,734 INFO L470 AbstractCegarLoop]: Abstraction has has 164 places, 163 transitions, 396 flow [2021-12-07 01:42:19,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 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) [2021-12-07 01:42:19,734 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:42:19,734 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:19,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 01:42:19,735 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-07 01:42:19,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:19,737 INFO L85 PathProgramCache]: Analyzing trace with hash 172146190, now seen corresponding path program 1 times [2021-12-07 01:42:19,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:19,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926426192] [2021-12-07 01:42:19,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:19,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:19,824 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:19,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:19,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926426192] [2021-12-07 01:42:19,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926426192] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:42:19,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59769064] [2021-12-07 01:42:19,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:19,825 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:42:19,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:42:19,826 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:42:19,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-07 01:42:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:19,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 01:42:19,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:42:20,115 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:20,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:42:20,267 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:20,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59769064] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:42:20,268 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:42:20,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-12-07 01:42:20,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795800921] [2021-12-07 01:42:20,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:42:20,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 01:42:20,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:20,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 01:42:20,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:42:20,273 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 176 [2021-12-07 01:42:20,276 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 163 transitions, 396 flow. Second operand has 10 states, 10 states have (on average 152.5) internal successors, (1525), 10 states have internal predecessors, (1525), 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) [2021-12-07 01:42:20,276 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:42:20,276 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 176 [2021-12-07 01:42:20,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:42:20,747 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([472] L1009-->L1011: Formula: (< 0 v_~top~0_7) InVars {~top~0=v_~top~0_7} OutVars{~top~0=v_~top~0_7} AuxVars[] AssignedVars[][182], [34#L946-2true, Black: 190#true, Black: 178#(= ~top~0 0), 32#L1023-4true, 192#(<= 1 ~top~0), 117#L1011true, Black: 183#(= |t1Thread1of1ForFork0_push_#res#1| 0), 196#true, Black: 186#(and (= |t1Thread1of1ForFork0_push_#res#1| 0) (= |t1Thread1of1ForFork0_#t~ret42#1| 0)), t2Thread1of1ForFork1InUse]) [2021-12-07 01:42:20,747 INFO L384 tUnfolder$Statistics]: this new event has 189 ancestors and is cut-off event [2021-12-07 01:42:20,748 INFO L387 tUnfolder$Statistics]: existing Event has 161 ancestors and is cut-off event [2021-12-07 01:42:20,748 INFO L387 tUnfolder$Statistics]: existing Event has 168 ancestors and is cut-off event [2021-12-07 01:42:20,748 INFO L387 tUnfolder$Statistics]: existing Event has 169 ancestors and is cut-off event [2021-12-07 01:42:20,748 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([473] L1009-->L1009-1: Formula: (not (< 0 v_~top~0_13)) InVars {~top~0=v_~top~0_13} OutVars{~top~0=v_~top~0_13} AuxVars[] AssignedVars[][183], [34#L946-2true, Black: 192#(<= 1 ~top~0), Black: 178#(= ~top~0 0), 32#L1023-4true, 190#true, 86#L1009-1true, 234#(<= ~top~0 0), Black: 183#(= |t1Thread1of1ForFork0_push_#res#1| 0), Black: 186#(and (= |t1Thread1of1ForFork0_push_#res#1| 0) (= |t1Thread1of1ForFork0_#t~ret42#1| 0)), t2Thread1of1ForFork1InUse]) [2021-12-07 01:42:20,748 INFO L384 tUnfolder$Statistics]: this new event has 189 ancestors and is cut-off event [2021-12-07 01:42:20,748 INFO L387 tUnfolder$Statistics]: existing Event has 168 ancestors and is cut-off event [2021-12-07 01:42:20,748 INFO L387 tUnfolder$Statistics]: existing Event has 161 ancestors and is cut-off event [2021-12-07 01:42:20,748 INFO L387 tUnfolder$Statistics]: existing Event has 169 ancestors and is cut-off event [2021-12-07 01:42:20,825 INFO L129 PetriNetUnfolder]: 387/3002 cut-off events. [2021-12-07 01:42:20,825 INFO L130 PetriNetUnfolder]: For 1007/1065 co-relation queries the response was YES. [2021-12-07 01:42:20,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4482 conditions, 3002 events. 387/3002 cut-off events. For 1007/1065 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 21704 event pairs, 43 based on Foata normal form. 40/2882 useless extension candidates. Maximal degree in co-relation 3942. Up to 300 conditions per place. [2021-12-07 01:42:20,845 INFO L132 encePairwiseOnDemand]: 167/176 looper letters, 86 selfloop transitions, 46 changer transitions 1/273 dead transitions. [2021-12-07 01:42:20,845 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 273 transitions, 1078 flow [2021-12-07 01:42:20,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-07 01:42:20,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-12-07 01:42:20,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2831 transitions. [2021-12-07 01:42:20,853 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8936237373737373 [2021-12-07 01:42:20,853 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2831 transitions. [2021-12-07 01:42:20,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2831 transitions. [2021-12-07 01:42:20,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:42:20,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2831 transitions. [2021-12-07 01:42:20,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 157.27777777777777) internal successors, (2831), 18 states have internal predecessors, (2831), 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) [2021-12-07 01:42:20,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 176.0) internal successors, (3344), 19 states have internal predecessors, (3344), 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) [2021-12-07 01:42:20,872 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 176.0) internal successors, (3344), 19 states have internal predecessors, (3344), 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) [2021-12-07 01:42:20,872 INFO L186 Difference]: Start difference. First operand has 164 places, 163 transitions, 396 flow. Second operand 18 states and 2831 transitions. [2021-12-07 01:42:20,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 273 transitions, 1078 flow [2021-12-07 01:42:20,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 273 transitions, 1016 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-12-07 01:42:20,882 INFO L242 Difference]: Finished difference. Result has 185 places, 218 transitions, 767 flow [2021-12-07 01:42:20,883 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=767, PETRI_PLACES=185, PETRI_TRANSITIONS=218} [2021-12-07 01:42:20,884 INFO L334 CegarLoopForPetriNet]: 161 programPoint places, 24 predicate places. [2021-12-07 01:42:20,884 INFO L470 AbstractCegarLoop]: Abstraction has has 185 places, 218 transitions, 767 flow [2021-12-07 01:42:20,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.5) internal successors, (1525), 10 states have internal predecessors, (1525), 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) [2021-12-07 01:42:20,885 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:42:20,885 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, 1, 1, 1, 1, 1] [2021-12-07 01:42:20,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-07 01:42:21,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-07 01:42:21,086 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-07 01:42:21,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:21,087 INFO L85 PathProgramCache]: Analyzing trace with hash 754166100, now seen corresponding path program 1 times [2021-12-07 01:42:21,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:21,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528881402] [2021-12-07 01:42:21,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:21,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:21,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:21,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:21,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528881402] [2021-12-07 01:42:21,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528881402] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:21,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:21,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:42:21,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918380783] [2021-12-07 01:42:21,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:21,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:42:21,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:21,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:42:21,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:42:21,257 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 176 [2021-12-07 01:42:21,258 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 218 transitions, 767 flow. Second operand has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 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) [2021-12-07 01:42:21,258 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:42:21,258 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 176 [2021-12-07 01:42:21,258 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:42:21,396 INFO L129 PetriNetUnfolder]: 54/1111 cut-off events. [2021-12-07 01:42:21,396 INFO L130 PetriNetUnfolder]: For 239/239 co-relation queries the response was YES. [2021-12-07 01:42:21,399 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1520 conditions, 1111 events. 54/1111 cut-off events. For 239/239 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4861 event pairs, 9 based on Foata normal form. 18/1086 useless extension candidates. Maximal degree in co-relation 1132. Up to 51 conditions per place. [2021-12-07 01:42:21,402 INFO L132 encePairwiseOnDemand]: 172/176 looper letters, 12 selfloop transitions, 4 changer transitions 0/177 dead transitions. [2021-12-07 01:42:21,402 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 177 transitions, 544 flow [2021-12-07 01:42:21,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:42:21,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-07 01:42:21,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-12-07 01:42:21,403 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9090909090909091 [2021-12-07 01:42:21,404 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-12-07 01:42:21,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-12-07 01:42:21,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:42:21,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-12-07 01:42:21,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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) [2021-12-07 01:42:21,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 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) [2021-12-07 01:42:21,406 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 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) [2021-12-07 01:42:21,406 INFO L186 Difference]: Start difference. First operand has 185 places, 218 transitions, 767 flow. Second operand 3 states and 480 transitions. [2021-12-07 01:42:21,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 177 transitions, 544 flow [2021-12-07 01:42:21,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 177 transitions, 522 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-12-07 01:42:21,412 INFO L242 Difference]: Finished difference. Result has 175 places, 175 transitions, 491 flow [2021-12-07 01:42:21,412 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=483, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=491, PETRI_PLACES=175, PETRI_TRANSITIONS=175} [2021-12-07 01:42:21,413 INFO L334 CegarLoopForPetriNet]: 161 programPoint places, 14 predicate places. [2021-12-07 01:42:21,413 INFO L470 AbstractCegarLoop]: Abstraction has has 175 places, 175 transitions, 491 flow [2021-12-07 01:42:21,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 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) [2021-12-07 01:42:21,414 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:42:21,414 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:21,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 01:42:21,414 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-07 01:42:21,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:21,415 INFO L85 PathProgramCache]: Analyzing trace with hash 33999950, now seen corresponding path program 1 times [2021-12-07 01:42:21,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:21,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618213589] [2021-12-07 01:42:21,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:21,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:22,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:22,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:22,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618213589] [2021-12-07 01:42:22,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618213589] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:22,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:22,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-12-07 01:42:22,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119959709] [2021-12-07 01:42:22,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:22,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-07 01:42:22,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:22,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-07 01:42:22,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-12-07 01:42:22,015 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 176 [2021-12-07 01:42:22,017 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 175 transitions, 491 flow. Second operand has 24 states, 24 states have (on average 99.54166666666667) internal successors, (2389), 24 states have internal predecessors, (2389), 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) [2021-12-07 01:42:22,017 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:42:22,017 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 176 [2021-12-07 01:42:22,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:42:24,673 INFO L129 PetriNetUnfolder]: 1122/4498 cut-off events. [2021-12-07 01:42:24,673 INFO L130 PetriNetUnfolder]: For 906/906 co-relation queries the response was YES. [2021-12-07 01:42:24,683 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8480 conditions, 4498 events. 1122/4498 cut-off events. For 906/906 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 31985 event pairs, 173 based on Foata normal form. 20/4368 useless extension candidates. Maximal degree in co-relation 5128. Up to 1458 conditions per place. [2021-12-07 01:42:24,698 INFO L132 encePairwiseOnDemand]: 139/176 looper letters, 249 selfloop transitions, 59 changer transitions 33/427 dead transitions. [2021-12-07 01:42:24,698 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 427 transitions, 1859 flow [2021-12-07 01:42:24,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-12-07 01:42:24,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2021-12-07 01:42:24,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 4579 transitions. [2021-12-07 01:42:24,709 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5912964876033058 [2021-12-07 01:42:24,709 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 4579 transitions. [2021-12-07 01:42:24,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 4579 transitions. [2021-12-07 01:42:24,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:42:24,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 4579 transitions. [2021-12-07 01:42:24,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 104.06818181818181) internal successors, (4579), 44 states have internal predecessors, (4579), 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) [2021-12-07 01:42:24,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 176.0) internal successors, (7920), 45 states have internal predecessors, (7920), 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) [2021-12-07 01:42:24,735 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 176.0) internal successors, (7920), 45 states have internal predecessors, (7920), 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) [2021-12-07 01:42:24,735 INFO L186 Difference]: Start difference. First operand has 175 places, 175 transitions, 491 flow. Second operand 44 states and 4579 transitions. [2021-12-07 01:42:24,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 427 transitions, 1859 flow [2021-12-07 01:42:24,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 427 transitions, 1855 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-07 01:42:24,745 INFO L242 Difference]: Finished difference. Result has 256 places, 230 transitions, 974 flow [2021-12-07 01:42:24,745 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=974, PETRI_PLACES=256, PETRI_TRANSITIONS=230} [2021-12-07 01:42:24,746 INFO L334 CegarLoopForPetriNet]: 161 programPoint places, 95 predicate places. [2021-12-07 01:42:24,746 INFO L470 AbstractCegarLoop]: Abstraction has has 256 places, 230 transitions, 974 flow [2021-12-07 01:42:24,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 99.54166666666667) internal successors, (2389), 24 states have internal predecessors, (2389), 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) [2021-12-07 01:42:24,747 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:42:24,747 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:24,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 01:42:24,747 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-07 01:42:24,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:24,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1463024058, now seen corresponding path program 2 times [2021-12-07 01:42:24,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:24,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606063525] [2021-12-07 01:42:24,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:24,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:25,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:25,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:25,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606063525] [2021-12-07 01:42:25,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606063525] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:25,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:25,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-12-07 01:42:25,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794172118] [2021-12-07 01:42:25,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:25,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-12-07 01:42:25,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:25,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-12-07 01:42:25,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2021-12-07 01:42:25,538 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 176 [2021-12-07 01:42:25,539 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 230 transitions, 974 flow. Second operand has 28 states, 28 states have (on average 85.53571428571429) internal successors, (2395), 28 states have internal predecessors, (2395), 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) [2021-12-07 01:42:25,540 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:42:25,540 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 176 [2021-12-07 01:42:25,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:42:28,526 INFO L129 PetriNetUnfolder]: 1758/7127 cut-off events. [2021-12-07 01:42:28,526 INFO L130 PetriNetUnfolder]: For 5415/5417 co-relation queries the response was YES. [2021-12-07 01:42:28,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16660 conditions, 7127 events. 1758/7127 cut-off events. For 5415/5417 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 54899 event pairs, 450 based on Foata normal form. 14/7008 useless extension candidates. Maximal degree in co-relation 11043. Up to 2353 conditions per place. [2021-12-07 01:42:28,581 INFO L132 encePairwiseOnDemand]: 138/176 looper letters, 291 selfloop transitions, 61 changer transitions 26/454 dead transitions. [2021-12-07 01:42:28,581 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 454 transitions, 2771 flow [2021-12-07 01:42:28,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-12-07 01:42:28,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2021-12-07 01:42:28,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 3181 transitions. [2021-12-07 01:42:28,589 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5163961038961039 [2021-12-07 01:42:28,589 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 3181 transitions. [2021-12-07 01:42:28,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 3181 transitions. [2021-12-07 01:42:28,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:42:28,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 3181 transitions. [2021-12-07 01:42:28,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 90.88571428571429) internal successors, (3181), 35 states have internal predecessors, (3181), 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) [2021-12-07 01:42:28,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 176.0) internal successors, (6336), 36 states have internal predecessors, (6336), 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) [2021-12-07 01:42:28,606 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 176.0) internal successors, (6336), 36 states have internal predecessors, (6336), 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) [2021-12-07 01:42:28,606 INFO L186 Difference]: Start difference. First operand has 256 places, 230 transitions, 974 flow. Second operand 35 states and 3181 transitions. [2021-12-07 01:42:28,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 454 transitions, 2771 flow [2021-12-07 01:42:28,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 454 transitions, 2759 flow, removed 4 selfloop flow, removed 2 redundant places. [2021-12-07 01:42:28,629 INFO L242 Difference]: Finished difference. Result has 304 places, 265 transitions, 1449 flow [2021-12-07 01:42:28,630 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=966, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=1449, PETRI_PLACES=304, PETRI_TRANSITIONS=265} [2021-12-07 01:42:28,630 INFO L334 CegarLoopForPetriNet]: 161 programPoint places, 143 predicate places. [2021-12-07 01:42:28,630 INFO L470 AbstractCegarLoop]: Abstraction has has 304 places, 265 transitions, 1449 flow [2021-12-07 01:42:28,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 85.53571428571429) internal successors, (2395), 28 states have internal predecessors, (2395), 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) [2021-12-07 01:42:28,631 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:42:28,631 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:28,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-07 01:42:28,631 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-07 01:42:28,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:28,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1698324662, now seen corresponding path program 3 times [2021-12-07 01:42:28,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:28,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509308959] [2021-12-07 01:42:28,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:28,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:29,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:29,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:29,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509308959] [2021-12-07 01:42:29,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509308959] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:29,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:29,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-12-07 01:42:29,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423016548] [2021-12-07 01:42:29,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:29,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-12-07 01:42:29,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:29,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-12-07 01:42:29,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2021-12-07 01:42:29,341 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 176 [2021-12-07 01:42:29,343 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 265 transitions, 1449 flow. Second operand has 28 states, 28 states have (on average 85.53571428571429) internal successors, (2395), 28 states have internal predecessors, (2395), 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) [2021-12-07 01:42:29,343 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:42:29,343 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 176 [2021-12-07 01:42:29,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:42:33,390 INFO L129 PetriNetUnfolder]: 2158/8843 cut-off events. [2021-12-07 01:42:33,390 INFO L130 PetriNetUnfolder]: For 9634/9637 co-relation queries the response was YES. [2021-12-07 01:42:33,442 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21714 conditions, 8843 events. 2158/8843 cut-off events. For 9634/9637 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 73442 event pairs, 285 based on Foata normal form. 33/8716 useless extension candidates. Maximal degree in co-relation 13601. Up to 1596 conditions per place. [2021-12-07 01:42:33,464 INFO L132 encePairwiseOnDemand]: 140/176 looper letters, 263 selfloop transitions, 126 changer transitions 33/498 dead transitions. [2021-12-07 01:42:33,464 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 498 transitions, 3352 flow [2021-12-07 01:42:33,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-12-07 01:42:33,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-12-07 01:42:33,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 4052 transitions. [2021-12-07 01:42:33,468 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5116161616161616 [2021-12-07 01:42:33,468 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 4052 transitions. [2021-12-07 01:42:33,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 4052 transitions. [2021-12-07 01:42:33,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:42:33,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 4052 transitions. [2021-12-07 01:42:33,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 90.04444444444445) internal successors, (4052), 45 states have internal predecessors, (4052), 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) [2021-12-07 01:42:33,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 176.0) internal successors, (8096), 46 states have internal predecessors, (8096), 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) [2021-12-07 01:42:33,486 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 176.0) internal successors, (8096), 46 states have internal predecessors, (8096), 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) [2021-12-07 01:42:33,486 INFO L186 Difference]: Start difference. First operand has 304 places, 265 transitions, 1449 flow. Second operand 45 states and 4052 transitions. [2021-12-07 01:42:33,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 498 transitions, 3352 flow [2021-12-07 01:42:33,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 498 transitions, 3299 flow, removed 7 selfloop flow, removed 14 redundant places. [2021-12-07 01:42:33,522 INFO L242 Difference]: Finished difference. Result has 361 places, 301 transitions, 2188 flow [2021-12-07 01:42:33,522 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=1397, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=2188, PETRI_PLACES=361, PETRI_TRANSITIONS=301} [2021-12-07 01:42:33,523 INFO L334 CegarLoopForPetriNet]: 161 programPoint places, 200 predicate places. [2021-12-07 01:42:33,523 INFO L470 AbstractCegarLoop]: Abstraction has has 361 places, 301 transitions, 2188 flow [2021-12-07 01:42:33,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 85.53571428571429) internal successors, (2395), 28 states have internal predecessors, (2395), 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) [2021-12-07 01:42:33,524 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:42:33,524 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:33,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-07 01:42:33,524 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-07 01:42:33,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:33,525 INFO L85 PathProgramCache]: Analyzing trace with hash -2012317005, now seen corresponding path program 1 times [2021-12-07 01:42:33,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:33,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239609749] [2021-12-07 01:42:33,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:33,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:34,110 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:34,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:34,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239609749] [2021-12-07 01:42:34,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239609749] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:42:34,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655135884] [2021-12-07 01:42:34,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:34,111 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:42:34,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:42:34,112 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:42:34,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-07 01:42:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:34,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 63 conjunts are in the unsatisfiable core [2021-12-07 01:42:34,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:42:35,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-12-07 01:42:36,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 23 [2021-12-07 01:43:43,365 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:43:43,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:43:44,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 46 [2021-12-07 01:43:44,569 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-07 01:43:44,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655135884] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-07 01:43:44,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:43:44,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [27, 26] total 70 [2021-12-07 01:43:44,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910096625] [2021-12-07 01:43:44,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:43:44,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-07 01:43:44,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:43:44,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-07 01:43:44,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=4530, Unknown=33, NotChecked=0, Total=4830 [2021-12-07 01:43:44,574 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 176 [2021-12-07 01:43:44,576 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 301 transitions, 2188 flow. Second operand has 22 states, 22 states have (on average 100.63636363636364) internal successors, (2214), 22 states have internal predecessors, (2214), 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) [2021-12-07 01:43:44,576 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:43:44,576 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 176 [2021-12-07 01:43:44,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:43:53,666 INFO L129 PetriNetUnfolder]: 3191/13220 cut-off events. [2021-12-07 01:43:53,667 INFO L130 PetriNetUnfolder]: For 24517/24520 co-relation queries the response was YES. [2021-12-07 01:43:53,772 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35869 conditions, 13220 events. 3191/13220 cut-off events. For 24517/24520 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 121550 event pairs, 433 based on Foata normal form. 9/12964 useless extension candidates. Maximal degree in co-relation 18639. Up to 1810 conditions per place. [2021-12-07 01:43:53,800 INFO L132 encePairwiseOnDemand]: 143/176 looper letters, 286 selfloop transitions, 255 changer transitions 3/630 dead transitions. [2021-12-07 01:43:53,800 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 630 transitions, 5257 flow [2021-12-07 01:43:53,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-12-07 01:43:53,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2021-12-07 01:43:53,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 6634 transitions. [2021-12-07 01:43:53,806 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5798951048951049 [2021-12-07 01:43:53,806 INFO L72 ComplementDD]: Start complementDD. Operand 65 states and 6634 transitions. [2021-12-07 01:43:53,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 6634 transitions. [2021-12-07 01:43:53,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:43:53,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 65 states and 6634 transitions. [2021-12-07 01:43:53,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 66 states, 65 states have (on average 102.06153846153846) internal successors, (6634), 65 states have internal predecessors, (6634), 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) [2021-12-07 01:43:53,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 66 states, 66 states have (on average 176.0) internal successors, (11616), 66 states have internal predecessors, (11616), 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) [2021-12-07 01:43:53,826 INFO L81 ComplementDD]: Finished complementDD. Result has 66 states, 66 states have (on average 176.0) internal successors, (11616), 66 states have internal predecessors, (11616), 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) [2021-12-07 01:43:53,827 INFO L186 Difference]: Start difference. First operand has 361 places, 301 transitions, 2188 flow. Second operand 65 states and 6634 transitions. [2021-12-07 01:43:53,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 630 transitions, 5257 flow [2021-12-07 01:43:53,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 630 transitions, 4900 flow, removed 154 selfloop flow, removed 17 redundant places. [2021-12-07 01:43:53,908 INFO L242 Difference]: Finished difference. Result has 425 places, 451 transitions, 3984 flow [2021-12-07 01:43:53,908 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=2010, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=65, PETRI_FLOW=3984, PETRI_PLACES=425, PETRI_TRANSITIONS=451} [2021-12-07 01:43:53,909 INFO L334 CegarLoopForPetriNet]: 161 programPoint places, 264 predicate places. [2021-12-07 01:43:53,909 INFO L470 AbstractCegarLoop]: Abstraction has has 425 places, 451 transitions, 3984 flow [2021-12-07 01:43:53,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 100.63636363636364) internal successors, (2214), 22 states have internal predecessors, (2214), 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) [2021-12-07 01:43:53,909 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:43:53,910 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:43:53,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-07 01:43:54,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:43:54,110 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-07 01:43:54,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:54,111 INFO L85 PathProgramCache]: Analyzing trace with hash -956233137, now seen corresponding path program 2 times [2021-12-07 01:43:54,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:54,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515447026] [2021-12-07 01:43:54,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:54,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:54,968 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:43:54,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:43:54,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515447026] [2021-12-07 01:43:54,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515447026] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:43:54,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588215520] [2021-12-07 01:43:54,969 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 01:43:54,969 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:43:54,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:54,969 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:43:54,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-07 01:43:55,030 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-07 01:43:55,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:43:55,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 63 conjunts are in the unsatisfiable core [2021-12-07 01:43:55,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:43:55,155 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-07 01:43:55,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-07 01:43:55,164 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-07 01:43:55,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-07 01:43:55,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-12-07 01:43:55,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 54 [2021-12-07 01:43:56,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 23 [2021-12-07 01:43:56,910 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-07 01:43:56,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:43:57,517 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_244 (Array Int Int))) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_244) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296)))) is different from false [2021-12-07 01:43:57,523 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:43:57,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2021-12-07 01:43:57,530 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:43:57,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2021-12-07 01:43:57,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2021-12-07 01:43:58,396 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-12-07 01:43:58,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12 [2021-12-07 01:43:58,403 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-07 01:43:58,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588215520] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:43:58,403 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:43:58,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 26, 26] total 75 [2021-12-07 01:43:58,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018277492] [2021-12-07 01:43:58,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:43:58,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2021-12-07 01:43:58,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:43:58,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2021-12-07 01:43:58,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=5095, Unknown=1, NotChecked=144, Total=5550 [2021-12-07 01:43:58,410 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 176 [2021-12-07 01:43:58,413 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 451 transitions, 3984 flow. Second operand has 75 states, 75 states have (on average 87.37333333333333) internal successors, (6553), 75 states have internal predecessors, (6553), 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) [2021-12-07 01:43:58,414 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:43:58,414 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 176 [2021-12-07 01:43:58,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:45:02,474 INFO L129 PetriNetUnfolder]: 5704/25963 cut-off events. [2021-12-07 01:45:02,474 INFO L130 PetriNetUnfolder]: For 60046/60053 co-relation queries the response was YES. [2021-12-07 01:45:02,764 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75329 conditions, 25963 events. 5704/25963 cut-off events. For 60046/60053 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 283431 event pairs, 605 based on Foata normal form. 44/25532 useless extension candidates. Maximal degree in co-relation 58532. Up to 2953 conditions per place. [2021-12-07 01:45:02,828 INFO L132 encePairwiseOnDemand]: 132/176 looper letters, 635 selfloop transitions, 805 changer transitions 18/1534 dead transitions. [2021-12-07 01:45:02,828 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 616 places, 1534 transitions, 14680 flow [2021-12-07 01:45:02,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2021-12-07 01:45:02,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2021-12-07 01:45:02,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 16921 transitions. [2021-12-07 01:45:02,842 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5007398200757576 [2021-12-07 01:45:02,843 INFO L72 ComplementDD]: Start complementDD. Operand 192 states and 16921 transitions. [2021-12-07 01:45:02,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 192 states and 16921 transitions. [2021-12-07 01:45:02,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:45:02,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 192 states and 16921 transitions. [2021-12-07 01:45:02,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 193 states, 192 states have (on average 88.13020833333333) internal successors, (16921), 192 states have internal predecessors, (16921), 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) [2021-12-07 01:45:02,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 193 states, 193 states have (on average 176.0) internal successors, (33968), 193 states have internal predecessors, (33968), 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) [2021-12-07 01:45:02,892 INFO L81 ComplementDD]: Finished complementDD. Result has 193 states, 193 states have (on average 176.0) internal successors, (33968), 193 states have internal predecessors, (33968), 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) [2021-12-07 01:45:02,892 INFO L186 Difference]: Start difference. First operand has 425 places, 451 transitions, 3984 flow. Second operand 192 states and 16921 transitions. [2021-12-07 01:45:02,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 616 places, 1534 transitions, 14680 flow [2021-12-07 01:45:03,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 607 places, 1534 transitions, 13045 flow, removed 777 selfloop flow, removed 9 redundant places. [2021-12-07 01:45:03,200 INFO L242 Difference]: Finished difference. Result has 646 places, 1077 transitions, 11020 flow [2021-12-07 01:45:03,201 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=3528, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=254, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=192, PETRI_FLOW=11020, PETRI_PLACES=646, PETRI_TRANSITIONS=1077} [2021-12-07 01:45:03,201 INFO L334 CegarLoopForPetriNet]: 161 programPoint places, 485 predicate places. [2021-12-07 01:45:03,201 INFO L470 AbstractCegarLoop]: Abstraction has has 646 places, 1077 transitions, 11020 flow [2021-12-07 01:45:03,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 87.37333333333333) internal successors, (6553), 75 states have internal predecessors, (6553), 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) [2021-12-07 01:45:03,202 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:45:03,202 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:45:03,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-07 01:45:03,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-07 01:45:03,403 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-07 01:45:03,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:45:03,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1324549368, now seen corresponding path program 2 times [2021-12-07 01:45:03,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:45:03,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986509744] [2021-12-07 01:45:03,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:45:03,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:45:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:03,488 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 12 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:45:03,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:45:03,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986509744] [2021-12-07 01:45:03,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986509744] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:45:03,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203149440] [2021-12-07 01:45:03,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 01:45:03,489 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:45:03,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:45:03,490 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:45:03,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-07 01:45:03,607 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 01:45:03,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:45:03,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-07 01:45:03,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:45:03,856 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 12 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:45:03,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:45:04,084 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 12 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:45:04,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203149440] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:45:04,085 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:45:04,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2021-12-07 01:45:04,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171773225] [2021-12-07 01:45:04,085 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:45:04,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 01:45:04,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:45:04,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 01:45:04,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:45:04,088 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 176 [2021-12-07 01:45:04,090 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 646 places, 1077 transitions, 11020 flow. Second operand has 13 states, 13 states have (on average 152.84615384615384) internal successors, (1987), 13 states have internal predecessors, (1987), 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) [2021-12-07 01:45:04,090 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:45:04,090 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 176 [2021-12-07 01:45:04,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:45:11,347 INFO L129 PetriNetUnfolder]: 1775/20733 cut-off events. [2021-12-07 01:45:11,348 INFO L130 PetriNetUnfolder]: For 64398/64424 co-relation queries the response was YES. [2021-12-07 01:45:11,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60269 conditions, 20733 events. 1775/20733 cut-off events. For 64398/64424 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 227854 event pairs, 388 based on Foata normal form. 75/20264 useless extension candidates. Maximal degree in co-relation 54871. Up to 1346 conditions per place. [2021-12-07 01:45:11,664 INFO L132 encePairwiseOnDemand]: 169/176 looper letters, 315 selfloop transitions, 237 changer transitions 1/1266 dead transitions. [2021-12-07 01:45:11,665 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 662 places, 1266 transitions, 13999 flow [2021-12-07 01:45:11,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-07 01:45:11,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-12-07 01:45:11,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2795 transitions. [2021-12-07 01:45:11,667 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.882260101010101 [2021-12-07 01:45:11,667 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2795 transitions. [2021-12-07 01:45:11,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2795 transitions. [2021-12-07 01:45:11,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:45:11,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2795 transitions. [2021-12-07 01:45:11,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 155.27777777777777) internal successors, (2795), 18 states have internal predecessors, (2795), 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) [2021-12-07 01:45:11,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 176.0) internal successors, (3344), 19 states have internal predecessors, (3344), 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) [2021-12-07 01:45:11,672 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 176.0) internal successors, (3344), 19 states have internal predecessors, (3344), 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) [2021-12-07 01:45:11,672 INFO L186 Difference]: Start difference. First operand has 646 places, 1077 transitions, 11020 flow. Second operand 18 states and 2795 transitions. [2021-12-07 01:45:11,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 662 places, 1266 transitions, 13999 flow [2021-12-07 01:45:12,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 638 places, 1266 transitions, 13149 flow, removed 390 selfloop flow, removed 24 redundant places. [2021-12-07 01:45:12,148 INFO L242 Difference]: Finished difference. Result has 641 places, 1141 transitions, 11563 flow [2021-12-07 01:45:12,150 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=10217, PETRI_DIFFERENCE_MINUEND_PLACES=621, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1076, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=865, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=11563, PETRI_PLACES=641, PETRI_TRANSITIONS=1141} [2021-12-07 01:45:12,150 INFO L334 CegarLoopForPetriNet]: 161 programPoint places, 480 predicate places. [2021-12-07 01:45:12,150 INFO L470 AbstractCegarLoop]: Abstraction has has 641 places, 1141 transitions, 11563 flow [2021-12-07 01:45:12,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 152.84615384615384) internal successors, (1987), 13 states have internal predecessors, (1987), 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) [2021-12-07 01:45:12,150 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:45:12,151 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:45:12,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-07 01:45:12,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-07 01:45:12,352 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-07 01:45:12,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:45:12,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1523173276, now seen corresponding path program 1 times [2021-12-07 01:45:12,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:45:12,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329219070] [2021-12-07 01:45:12,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:45:12,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:45:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:13,040 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-07 01:45:13,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:45:13,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329219070] [2021-12-07 01:45:13,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329219070] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:45:13,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275345463] [2021-12-07 01:45:13,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:45:13,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:45:13,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:45:13,042 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:45:13,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908ecfe9-ffa0-466f-94e0-021fd0dede99/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-07 01:45:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:13,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 86 conjunts are in the unsatisfiable core [2021-12-07 01:45:13,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:45:13,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-12-07 01:45:14,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:45:14,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 38 [2021-12-07 01:45:16,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 23 [2021-12-07 01:45:16,667 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 5 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:45:16,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:45:54,328 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:45:54,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2021-12-07 01:45:54,334 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:45:54,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2021-12-07 01:45:54,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 42 [2021-12-07 01:45:54,364 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:45:54,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 67 [2021-12-07 01:45:55,449 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:45:55,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275345463] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:45:55,449 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:45:55,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 34, 33] total 92 [2021-12-07 01:45:55,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698076555] [2021-12-07 01:45:55,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:45:55,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2021-12-07 01:45:55,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:45:55,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2021-12-07 01:45:55,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=719, Invalid=7631, Unknown=22, NotChecked=0, Total=8372 [2021-12-07 01:45:55,457 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 176 [2021-12-07 01:45:55,462 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 641 places, 1141 transitions, 11563 flow. Second operand has 92 states, 92 states have (on average 100.28260869565217) internal successors, (9226), 92 states have internal predecessors, (9226), 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) [2021-12-07 01:45:55,462 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:45:55,462 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 176 [2021-12-07 01:45:55,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:47:05,166 WARN L227 SmtUtils]: Spent 7.99s on a formula simplification that was a NOOP. DAG size: 60 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-07 01:47:28,891 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (* c_~top~0 4))) (and (not (= (mod (select (select |c_#memory_int| |c_~#arr~0.base|) (+ |c_~#arr~0.offset| .cse0 (- 4))) 4294967296) 4294967294)) (not (= 4294967294 (mod (select (select |c_#memory_int| |c_t2Thread1of1ForFork1_pop_#in~stack#1.base|) (+ |c_t2Thread1of1ForFork1_pop_#in~stack#1.offset| .cse0 (- 4))) 4294967296))) (not (= (mod (select (select |c_#memory_int| |c_t2Thread1of1ForFork1_pop_~stack#1.base|) (+ .cse0 (- 4) |c_t2Thread1of1ForFork1_pop_~stack#1.offset|)) 4294967296) 4294967294)) (forall ((v_~top~0_26 Int)) (or (not (= (mod (select (select |c_#memory_int| |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* v_~top~0_26 4) (- 4))) 4294967296) 4294967294)) (< c_~top~0 (+ v_~top~0_26 1)) (<= v_~top~0_26 0))) (forall ((v_~top~0_26 Int) (v_ArrVal_360 Int)) (or (< c_~top~0 v_~top~0_26) (not (= (mod (select (store (select |c_#memory_int| |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4)) v_ArrVal_360) (+ |c_~#arr~0.offset| (* v_~top~0_26 4) (- 4))) 4294967296) 4294967294)) (<= v_~top~0_26 0))))) is different from false [2021-12-07 01:48:57,723 WARN L227 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 67 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-07 01:51:06,335 WARN L227 SmtUtils]: Spent 43.47s on a formula simplification. DAG size of input: 80 DAG size of output: 73 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-07 01:53:55,271 WARN L227 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 72 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-07 01:56:27,847 WARN L227 SmtUtils]: Spent 18.06s on a formula simplification that was a NOOP. DAG size: 85 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)