./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_20-callback_racefree.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_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/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_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_20-callback_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/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_032ccf88-fae9-46c5-9d09-c2614c16339f/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 4e91816f101a416d37c086dd7185cfb4e2bfa63eb286e4a418cb94db27cf2f6f --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:38:35,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:38:35,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:38:35,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:38:35,862 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:38:35,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:38:35,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:38:35,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:38:35,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:38:35,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:38:35,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:38:35,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:38:35,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:38:35,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:38:35,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:38:35,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:38:35,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:38:35,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:38:35,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:38:35,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:38:35,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:38:35,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:38:35,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:38:35,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:38:35,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:38:35,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:38:35,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:38:35,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:38:35,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:38:35,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:38:35,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:38:35,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:38:35,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:38:35,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:38:35,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:38:35,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:38:35,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:38:35,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:38:35,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:38:35,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:38:35,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:38:35,902 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 22:38:35,923 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:38:35,924 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:38:35,924 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:38:35,924 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:38:35,925 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 22:38:35,925 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 22:38:35,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:38:35,926 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:38:35,926 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:38:35,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:38:35,926 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 22:38:35,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:38:35,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 22:38:35,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:38:35,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 22:38:35,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 22:38:35,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 22:38:35,927 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 22:38:35,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:38:35,928 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:38:35,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 22:38:35,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:38:35,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:38:35,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 22:38:35,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:38:35,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:38:35,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 22:38:35,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 22:38:35,929 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:38:35,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 22:38:35,930 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 22:38:35,930 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 22:38:35,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 22:38:35,930 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:38:35,930 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_032ccf88-fae9-46c5-9d09-c2614c16339f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e91816f101a416d37c086dd7185cfb4e2bfa63eb286e4a418cb94db27cf2f6f [2021-12-06 22:38:36,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:38:36,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:38:36,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:38:36,139 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:38:36,140 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:38:36,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/goblint-regression/28-race_reach_20-callback_racefree.i [2021-12-06 22:38:36,189 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa/data/f057fa4ba/5a593296077e46c09f8f749d06a78c9f/FLAGd9016db74 [2021-12-06 22:38:36,632 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:38:36,633 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/sv-benchmarks/c/goblint-regression/28-race_reach_20-callback_racefree.i [2021-12-06 22:38:36,646 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa/data/f057fa4ba/5a593296077e46c09f8f749d06a78c9f/FLAGd9016db74 [2021-12-06 22:38:36,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa/data/f057fa4ba/5a593296077e46c09f8f749d06a78c9f [2021-12-06 22:38:36,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:38:36,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:38:36,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:38:36,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:38:36,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:38:36,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:38:36" (1/1) ... [2021-12-06 22:38:36,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a20c640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:38:36, skipping insertion in model container [2021-12-06 22:38:36,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:38:36" (1/1) ... [2021-12-06 22:38:36,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:38:36,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:38:36,910 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_032ccf88-fae9-46c5-9d09-c2614c16339f/sv-benchmarks/c/goblint-regression/28-race_reach_20-callback_racefree.i[30212,30225] [2021-12-06 22:38:36,927 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:38:36,936 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:38:36,960 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_032ccf88-fae9-46c5-9d09-c2614c16339f/sv-benchmarks/c/goblint-regression/28-race_reach_20-callback_racefree.i[30212,30225] [2021-12-06 22:38:36,967 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:38:36,997 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:38:36,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:38:36 WrapperNode [2021-12-06 22:38:36,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:38:36,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:38:36,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:38:36,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:38:37,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:38:36" (1/1) ... [2021-12-06 22:38:37,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:38:36" (1/1) ... [2021-12-06 22:38:37,033 INFO L137 Inliner]: procedures = 173, calls = 33, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 134 [2021-12-06 22:38:37,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:38:37,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:38:37,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:38:37,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:38:37,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:38:36" (1/1) ... [2021-12-06 22:38:37,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:38:36" (1/1) ... [2021-12-06 22:38:37,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:38:36" (1/1) ... [2021-12-06 22:38:37,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:38:36" (1/1) ... [2021-12-06 22:38:37,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:38:36" (1/1) ... [2021-12-06 22:38:37,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:38:36" (1/1) ... [2021-12-06 22:38:37,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:38:36" (1/1) ... [2021-12-06 22:38:37,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:38:37,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:38:37,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:38:37,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:38:37,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:38:36" (1/1) ... [2021-12-06 22:38:37,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:38:37,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:38:37,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 22:38:37,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 22:38:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 22:38:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 22:38:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-06 22:38:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:38:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 22:38:37,123 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-06 22:38:37,123 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-06 22:38:37,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 22:38:37,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 22:38:37,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:38:37,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:38:37,125 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-06 22:38:37,206 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:38:37,208 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:38:37,375 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:38:37,382 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:38:37,382 INFO L301 CfgBuilder]: Removed 11 assume(true) statements. [2021-12-06 22:38:37,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:38:37 BoogieIcfgContainer [2021-12-06 22:38:37,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:38:37,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 22:38:37,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 22:38:37,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 22:38:37,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 10:38:36" (1/3) ... [2021-12-06 22:38:37,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c5364f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:38:37, skipping insertion in model container [2021-12-06 22:38:37,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:38:36" (2/3) ... [2021-12-06 22:38:37,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c5364f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:38:37, skipping insertion in model container [2021-12-06 22:38:37,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:38:37" (3/3) ... [2021-12-06 22:38:37,391 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_20-callback_racefree.i [2021-12-06 22:38:37,396 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-06 22:38:37,396 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 22:38:37,396 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 22:38:37,397 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-06 22:38:37,417 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,417 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,417 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,417 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,417 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,418 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,418 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,418 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,418 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,418 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,418 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,418 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,418 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,419 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,419 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,419 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,419 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,419 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,419 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,419 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,420 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,420 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,420 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,420 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,420 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,420 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,420 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,420 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,421 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,421 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,421 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,421 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,423 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,423 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,427 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-06 22:38:37,460 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:38:37,465 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 [2021-12-06 22:38:37,465 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-06 22:38:37,476 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 136 places, 148 transitions, 304 flow [2021-12-06 22:38:37,532 INFO L129 PetriNetUnfolder]: 26/224 cut-off events. [2021-12-06 22:38:37,532 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 22:38:37,536 INFO L84 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 224 events. 26/224 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 583 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 114. Up to 6 conditions per place. [2021-12-06 22:38:37,536 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 148 transitions, 304 flow [2021-12-06 22:38:37,541 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 143 transitions, 291 flow [2021-12-06 22:38:37,556 INFO L129 PetriNetUnfolder]: 5/105 cut-off events. [2021-12-06 22:38:37,556 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 22:38:37,556 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:38:37,557 INFO L254 CegarLoopForPetriNet]: trace histogram [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] [2021-12-06 22:38:37,557 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:38:37,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:38:37,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1123183307, now seen corresponding path program 1 times [2021-12-06 22:38:37,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:38:37,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306289068] [2021-12-06 22:38:37,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:38:37,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:38:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:38:37,666 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:38:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:38:37,710 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:38:37,711 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 22:38:37,712 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 3 remaining) [2021-12-06 22:38:37,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-12-06 22:38:37,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-12-06 22:38:37,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 22:38:37,717 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-06 22:38:37,719 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-12-06 22:38:37,719 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-12-06 22:38:37,728 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,728 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,728 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,728 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,735 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,735 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,735 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,735 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,735 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,735 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,735 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,735 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,737 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,737 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,737 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,737 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,737 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,737 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,739 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,739 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,739 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,739 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,739 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:37,740 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-12-06 22:38:37,743 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:38:37,744 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 [2021-12-06 22:38:37,744 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-06 22:38:37,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 158 places, 172 transitions, 362 flow [2021-12-06 22:38:37,788 INFO L129 PetriNetUnfolder]: 43/349 cut-off events. [2021-12-06 22:38:37,788 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-12-06 22:38:37,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 349 events. 43/349 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1240 event pairs, 0 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 226. Up to 9 conditions per place. [2021-12-06 22:38:37,791 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 172 transitions, 362 flow [2021-12-06 22:38:37,795 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 158 places, 172 transitions, 362 flow [2021-12-06 22:38:37,805 INFO L129 PetriNetUnfolder]: 7/116 cut-off events. [2021-12-06 22:38:37,805 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 22:38:37,805 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:38:37,805 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] [2021-12-06 22:38:37,806 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:38:37,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:38:37,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1139599209, now seen corresponding path program 1 times [2021-12-06 22:38:37,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:38:37,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378860231] [2021-12-06 22:38:37,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:38:37,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:38:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:38:37,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:38:37,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:38:37,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378860231] [2021-12-06 22:38:37,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378860231] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:38:37,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:38:37,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:38:37,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009212268] [2021-12-06 22:38:37,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:38:37,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:38:37,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:38:37,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:38:37,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:38:37,981 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 172 [2021-12-06 22:38:37,985 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 172 transitions, 362 flow. Second operand has 5 states, 5 states have (on average 141.2) internal successors, (706), 5 states have internal predecessors, (706), 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) [2021-12-06 22:38:37,985 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:38:37,986 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 172 [2021-12-06 22:38:37,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:38:38,333 INFO L129 PetriNetUnfolder]: 222/1850 cut-off events. [2021-12-06 22:38:38,333 INFO L130 PetriNetUnfolder]: For 131/159 co-relation queries the response was YES. [2021-12-06 22:38:38,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2279 conditions, 1850 events. 222/1850 cut-off events. For 131/159 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 13950 event pairs, 55 based on Foata normal form. 476/2200 useless extension candidates. Maximal degree in co-relation 862. Up to 146 conditions per place. [2021-12-06 22:38:38,345 INFO L132 encePairwiseOnDemand]: 151/172 looper letters, 43 selfloop transitions, 8 changer transitions 5/196 dead transitions. [2021-12-06 22:38:38,345 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 196 transitions, 556 flow [2021-12-06 22:38:38,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 22:38:38,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-06 22:38:38,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1252 transitions. [2021-12-06 22:38:38,360 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9098837209302325 [2021-12-06 22:38:38,360 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1252 transitions. [2021-12-06 22:38:38,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1252 transitions. [2021-12-06 22:38:38,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:38:38,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1252 transitions. [2021-12-06 22:38:38,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 156.5) internal successors, (1252), 8 states have internal predecessors, (1252), 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) [2021-12-06 22:38:38,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 172.0) internal successors, (1548), 9 states have internal predecessors, (1548), 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) [2021-12-06 22:38:38,378 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 172.0) internal successors, (1548), 9 states have internal predecessors, (1548), 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) [2021-12-06 22:38:38,380 INFO L186 Difference]: Start difference. First operand has 158 places, 172 transitions, 362 flow. Second operand 8 states and 1252 transitions. [2021-12-06 22:38:38,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 196 transitions, 556 flow [2021-12-06 22:38:38,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 196 transitions, 556 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 22:38:38,388 INFO L242 Difference]: Finished difference. Result has 168 places, 162 transitions, 387 flow [2021-12-06 22:38:38,390 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=387, PETRI_PLACES=168, PETRI_TRANSITIONS=162} [2021-12-06 22:38:38,393 INFO L334 CegarLoopForPetriNet]: 158 programPoint places, 10 predicate places. [2021-12-06 22:38:38,393 INFO L470 AbstractCegarLoop]: Abstraction has has 168 places, 162 transitions, 387 flow [2021-12-06 22:38:38,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.2) internal successors, (706), 5 states have internal predecessors, (706), 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) [2021-12-06 22:38:38,394 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:38:38,394 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 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] [2021-12-06 22:38:38,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 22:38:38,394 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:38:38,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:38:38,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1898508243, now seen corresponding path program 1 times [2021-12-06 22:38:38,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:38:38,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844430956] [2021-12-06 22:38:38,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:38:38,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:38:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:38:38,415 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:38:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:38:38,436 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:38:38,437 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 22:38:38,437 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 4 remaining) [2021-12-06 22:38:38,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-12-06 22:38:38,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2021-12-06 22:38:38,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-12-06 22:38:38,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 22:38:38,442 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-06 22:38:38,442 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-12-06 22:38:38,442 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-12-06 22:38:38,450 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,450 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,451 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,451 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,451 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,451 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,451 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,451 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,451 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,451 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,457 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,457 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,457 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,457 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,457 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,457 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,457 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,457 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,459 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,459 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,459 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,459 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,459 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,459 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,459 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,465 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,465 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,465 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,465 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,465 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,465 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,466 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,466 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,466 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,466 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,466 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,466 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,466 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,466 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:38,468 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-12-06 22:38:38,469 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:38:38,470 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 [2021-12-06 22:38:38,471 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-12-06 22:38:38,473 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 180 places, 196 transitions, 422 flow [2021-12-06 22:38:38,535 INFO L129 PetriNetUnfolder]: 65/507 cut-off events. [2021-12-06 22:38:38,535 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-12-06 22:38:38,538 INFO L84 FinitePrefix]: Finished finitePrefix Result has 535 conditions, 507 events. 65/507 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2049 event pairs, 1 based on Foata normal form. 0/435 useless extension candidates. Maximal degree in co-relation 357. Up to 16 conditions per place. [2021-12-06 22:38:38,538 INFO L82 GeneralOperation]: Start removeDead. Operand has 180 places, 196 transitions, 422 flow [2021-12-06 22:38:38,542 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 196 transitions, 422 flow [2021-12-06 22:38:38,551 INFO L129 PetriNetUnfolder]: 7/114 cut-off events. [2021-12-06 22:38:38,551 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 22:38:38,551 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:38:38,551 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] [2021-12-06 22:38:38,552 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 22:38:38,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:38:38,552 INFO L85 PathProgramCache]: Analyzing trace with hash 681633727, now seen corresponding path program 1 times [2021-12-06 22:38:38,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:38:38,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538246593] [2021-12-06 22:38:38,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:38:38,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:38:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:38:38,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:38:38,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:38:38,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538246593] [2021-12-06 22:38:38,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538246593] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:38:38,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:38:38,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:38:38,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408234397] [2021-12-06 22:38:38,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:38:38,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:38:38,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:38:38,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:38:38,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:38:38,618 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 196 [2021-12-06 22:38:38,619 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 196 transitions, 422 flow. Second operand has 5 states, 5 states have (on average 158.2) internal successors, (791), 5 states have internal predecessors, (791), 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) [2021-12-06 22:38:38,619 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:38:38,620 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 196 [2021-12-06 22:38:38,620 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:38:39,284 INFO L129 PetriNetUnfolder]: 749/4671 cut-off events. [2021-12-06 22:38:39,284 INFO L130 PetriNetUnfolder]: For 567/645 co-relation queries the response was YES. [2021-12-06 22:38:39,300 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6022 conditions, 4671 events. 749/4671 cut-off events. For 567/645 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 44436 event pairs, 150 based on Foata normal form. 1634/5976 useless extension candidates. Maximal degree in co-relation 2229. Up to 425 conditions per place. [2021-12-06 22:38:39,320 INFO L132 encePairwiseOnDemand]: 172/196 looper letters, 65 selfloop transitions, 8 changer transitions 0/230 dead transitions. [2021-12-06 22:38:39,320 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 230 transitions, 702 flow [2021-12-06 22:38:39,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 22:38:39,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-06 22:38:39,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1426 transitions. [2021-12-06 22:38:39,325 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9094387755102041 [2021-12-06 22:38:39,325 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1426 transitions. [2021-12-06 22:38:39,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1426 transitions. [2021-12-06 22:38:39,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:38:39,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1426 transitions. [2021-12-06 22:38:39,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 178.25) internal successors, (1426), 8 states have internal predecessors, (1426), 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) [2021-12-06 22:38:39,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 196.0) internal successors, (1764), 9 states have internal predecessors, (1764), 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) [2021-12-06 22:38:39,335 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 196.0) internal successors, (1764), 9 states have internal predecessors, (1764), 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) [2021-12-06 22:38:39,335 INFO L186 Difference]: Start difference. First operand has 180 places, 196 transitions, 422 flow. Second operand 8 states and 1426 transitions. [2021-12-06 22:38:39,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 230 transitions, 702 flow [2021-12-06 22:38:39,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 230 transitions, 702 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 22:38:39,342 INFO L242 Difference]: Finished difference. Result has 189 places, 182 transitions, 439 flow [2021-12-06 22:38:39,343 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=439, PETRI_PLACES=189, PETRI_TRANSITIONS=182} [2021-12-06 22:38:39,344 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 9 predicate places. [2021-12-06 22:38:39,344 INFO L470 AbstractCegarLoop]: Abstraction has has 189 places, 182 transitions, 439 flow [2021-12-06 22:38:39,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 158.2) internal successors, (791), 5 states have internal predecessors, (791), 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) [2021-12-06 22:38:39,345 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:38:39,346 INFO L254 CegarLoopForPetriNet]: trace histogram [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] [2021-12-06 22:38:39,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 22:38:39,346 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 22:38:39,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:38:39,347 INFO L85 PathProgramCache]: Analyzing trace with hash 2063890061, now seen corresponding path program 1 times [2021-12-06 22:38:39,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:38:39,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234453851] [2021-12-06 22:38:39,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:38:39,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:38:39,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:38:39,429 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 22:38:39,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:38:39,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234453851] [2021-12-06 22:38:39,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234453851] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:38:39,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:38:39,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:38:39,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585843447] [2021-12-06 22:38:39,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:38:39,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:38:39,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:38:39,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:38:39,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:38:39,432 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 196 [2021-12-06 22:38:39,433 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 182 transitions, 439 flow. Second operand has 5 states, 5 states have (on average 158.4) internal successors, (792), 5 states have internal predecessors, (792), 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) [2021-12-06 22:38:39,433 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:38:39,433 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 196 [2021-12-06 22:38:39,433 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:38:40,460 INFO L129 PetriNetUnfolder]: 1235/8063 cut-off events. [2021-12-06 22:38:40,460 INFO L130 PetriNetUnfolder]: For 2053/2221 co-relation queries the response was YES. [2021-12-06 22:38:40,492 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11386 conditions, 8063 events. 1235/8063 cut-off events. For 2053/2221 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 88201 event pairs, 360 based on Foata normal form. 27/7516 useless extension candidates. Maximal degree in co-relation 8062. Up to 850 conditions per place. [2021-12-06 22:38:40,521 INFO L132 encePairwiseOnDemand]: 190/196 looper letters, 61 selfloop transitions, 14 changer transitions 2/237 dead transitions. [2021-12-06 22:38:40,521 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 237 transitions, 813 flow [2021-12-06 22:38:40,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 22:38:40,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-06 22:38:40,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1329 transitions. [2021-12-06 22:38:40,526 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8475765306122449 [2021-12-06 22:38:40,526 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1329 transitions. [2021-12-06 22:38:40,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1329 transitions. [2021-12-06 22:38:40,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:38:40,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1329 transitions. [2021-12-06 22:38:40,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 166.125) internal successors, (1329), 8 states have internal predecessors, (1329), 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) [2021-12-06 22:38:40,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 196.0) internal successors, (1764), 9 states have internal predecessors, (1764), 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) [2021-12-06 22:38:40,535 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 196.0) internal successors, (1764), 9 states have internal predecessors, (1764), 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) [2021-12-06 22:38:40,535 INFO L186 Difference]: Start difference. First operand has 189 places, 182 transitions, 439 flow. Second operand 8 states and 1329 transitions. [2021-12-06 22:38:40,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 237 transitions, 813 flow [2021-12-06 22:38:40,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 237 transitions, 813 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 22:38:40,547 INFO L242 Difference]: Finished difference. Result has 200 places, 192 transitions, 537 flow [2021-12-06 22:38:40,547 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=537, PETRI_PLACES=200, PETRI_TRANSITIONS=192} [2021-12-06 22:38:40,548 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 20 predicate places. [2021-12-06 22:38:40,548 INFO L470 AbstractCegarLoop]: Abstraction has has 200 places, 192 transitions, 537 flow [2021-12-06 22:38:40,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 158.4) internal successors, (792), 5 states have internal predecessors, (792), 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) [2021-12-06 22:38:40,548 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:38:40,549 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 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] [2021-12-06 22:38:40,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 22:38:40,549 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 22:38:40,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:38:40,549 INFO L85 PathProgramCache]: Analyzing trace with hash -340863136, now seen corresponding path program 1 times [2021-12-06 22:38:40,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:38:40,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953401358] [2021-12-06 22:38:40,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:38:40,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:38:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:38:40,575 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:38:40,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:38:40,604 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:38:40,605 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 22:38:40,605 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 5 remaining) [2021-12-06 22:38:40,605 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2021-12-06 22:38:40,606 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2021-12-06 22:38:40,606 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2021-12-06 22:38:40,606 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2021-12-06 22:38:40,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 22:38:40,607 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-06 22:38:40,607 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-12-06 22:38:40,607 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-12-06 22:38:40,617 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,618 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,618 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,618 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,618 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,618 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,618 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,622 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,622 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,622 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,622 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,623 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,623 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,623 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,623 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,623 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,623 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,624 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,624 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,624 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,624 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,624 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,624 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,624 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,624 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,626 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,626 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,626 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,626 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,626 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,626 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,626 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,626 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,627 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,627 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,627 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,627 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,627 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,628 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,628 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,628 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,628 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,628 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,628 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,628 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,628 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,629 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,629 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,629 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,629 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,629 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,629 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,629 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,630 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,630 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,630 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,630 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,630 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,630 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,630 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,631 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,631 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,631 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,631 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,631 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,631 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,631 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,631 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,632 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,632 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,632 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,632 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,632 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,633 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,633 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,633 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,633 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,633 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,633 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,633 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,633 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,634 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,634 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,634 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,634 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,634 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,634 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,635 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,635 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,635 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,635 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,635 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,635 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,635 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,635 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,636 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,636 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,636 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,636 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,636 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,636 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,637 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,637 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,637 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,637 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,637 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,638 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,638 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,638 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,638 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,639 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,639 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,639 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,639 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,639 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,639 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,639 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,640 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,640 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,640 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,640 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,641 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,641 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,641 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,641 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,641 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,642 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,642 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,642 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,642 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,642 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,642 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,642 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:40,644 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-12-06 22:38:40,646 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:38:40,647 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 [2021-12-06 22:38:40,647 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-12-06 22:38:40,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 202 places, 220 transitions, 484 flow [2021-12-06 22:38:40,739 INFO L129 PetriNetUnfolder]: 99/733 cut-off events. [2021-12-06 22:38:40,739 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2021-12-06 22:38:40,742 INFO L84 FinitePrefix]: Finished finitePrefix Result has 788 conditions, 733 events. 99/733 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3260 event pairs, 6 based on Foata normal form. 0/630 useless extension candidates. Maximal degree in co-relation 527. Up to 32 conditions per place. [2021-12-06 22:38:40,742 INFO L82 GeneralOperation]: Start removeDead. Operand has 202 places, 220 transitions, 484 flow [2021-12-06 22:38:40,746 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 202 places, 220 transitions, 484 flow [2021-12-06 22:38:40,752 INFO L129 PetriNetUnfolder]: 5/108 cut-off events. [2021-12-06 22:38:40,752 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 22:38:40,752 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:38:40,752 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] [2021-12-06 22:38:40,752 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 22:38:40,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:38:40,752 INFO L85 PathProgramCache]: Analyzing trace with hash -747934017, now seen corresponding path program 1 times [2021-12-06 22:38:40,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:38:40,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569284437] [2021-12-06 22:38:40,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:38:40,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:38:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:38:40,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:38:40,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:38:40,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569284437] [2021-12-06 22:38:40,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569284437] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:38:40,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:38:40,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:38:40,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552515135] [2021-12-06 22:38:40,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:38:40,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:38:40,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:38:40,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:38:40,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:38:40,814 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 220 [2021-12-06 22:38:40,815 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 220 transitions, 484 flow. Second operand has 5 states, 5 states have (on average 175.2) internal successors, (876), 5 states have internal predecessors, (876), 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) [2021-12-06 22:38:40,815 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:38:40,816 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 220 [2021-12-06 22:38:40,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:38:42,217 INFO L129 PetriNetUnfolder]: 2347/11967 cut-off events. [2021-12-06 22:38:42,218 INFO L130 PetriNetUnfolder]: For 2201/2384 co-relation queries the response was YES. [2021-12-06 22:38:42,264 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16051 conditions, 11967 events. 2347/11967 cut-off events. For 2201/2384 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 135170 event pairs, 467 based on Foata normal form. 5204/16323 useless extension candidates. Maximal degree in co-relation 6009. Up to 1187 conditions per place. [2021-12-06 22:38:42,306 INFO L132 encePairwiseOnDemand]: 193/220 looper letters, 82 selfloop transitions, 8 changer transitions 0/264 dead transitions. [2021-12-06 22:38:42,306 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 264 transitions, 854 flow [2021-12-06 22:38:42,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 22:38:42,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-06 22:38:42,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1600 transitions. [2021-12-06 22:38:42,310 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9090909090909091 [2021-12-06 22:38:42,310 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1600 transitions. [2021-12-06 22:38:42,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1600 transitions. [2021-12-06 22:38:42,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:38:42,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1600 transitions. [2021-12-06 22:38:42,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 200.0) internal successors, (1600), 8 states have internal predecessors, (1600), 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) [2021-12-06 22:38:42,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 220.0) internal successors, (1980), 9 states have internal predecessors, (1980), 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) [2021-12-06 22:38:42,318 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 220.0) internal successors, (1980), 9 states have internal predecessors, (1980), 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) [2021-12-06 22:38:42,318 INFO L186 Difference]: Start difference. First operand has 202 places, 220 transitions, 484 flow. Second operand 8 states and 1600 transitions. [2021-12-06 22:38:42,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 264 transitions, 854 flow [2021-12-06 22:38:42,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 264 transitions, 854 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 22:38:42,323 INFO L242 Difference]: Finished difference. Result has 210 places, 202 transitions, 493 flow [2021-12-06 22:38:42,324 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=493, PETRI_PLACES=210, PETRI_TRANSITIONS=202} [2021-12-06 22:38:42,324 INFO L334 CegarLoopForPetriNet]: 202 programPoint places, 8 predicate places. [2021-12-06 22:38:42,324 INFO L470 AbstractCegarLoop]: Abstraction has has 210 places, 202 transitions, 493 flow [2021-12-06 22:38:42,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 175.2) internal successors, (876), 5 states have internal predecessors, (876), 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) [2021-12-06 22:38:42,325 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:38:42,325 INFO L254 CegarLoopForPetriNet]: trace histogram [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] [2021-12-06 22:38:42,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 22:38:42,325 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 22:38:42,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:38:42,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1067536201, now seen corresponding path program 1 times [2021-12-06 22:38:42,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:38:42,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122552317] [2021-12-06 22:38:42,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:38:42,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:38:42,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:38:42,372 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 22:38:42,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:38:42,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122552317] [2021-12-06 22:38:42,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122552317] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:38:42,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:38:42,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:38:42,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213359445] [2021-12-06 22:38:42,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:38:42,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:38:42,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:38:42,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:38:42,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:38:42,376 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 220 [2021-12-06 22:38:42,377 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 202 transitions, 493 flow. Second operand has 5 states, 5 states have (on average 175.4) internal successors, (877), 5 states have internal predecessors, (877), 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) [2021-12-06 22:38:42,377 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:38:42,377 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 220 [2021-12-06 22:38:42,377 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:38:45,076 INFO L129 PetriNetUnfolder]: 4094/20832 cut-off events. [2021-12-06 22:38:45,076 INFO L130 PetriNetUnfolder]: For 6391/6786 co-relation queries the response was YES. [2021-12-06 22:38:45,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30428 conditions, 20832 events. 4094/20832 cut-off events. For 6391/6786 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 263478 event pairs, 987 based on Foata normal form. 60/19433 useless extension candidates. Maximal degree in co-relation 21198. Up to 2506 conditions per place. [2021-12-06 22:38:45,231 INFO L132 encePairwiseOnDemand]: 214/220 looper letters, 80 selfloop transitions, 14 changer transitions 0/271 dead transitions. [2021-12-06 22:38:45,231 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 271 transitions, 965 flow [2021-12-06 22:38:45,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 22:38:45,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-06 22:38:45,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1482 transitions. [2021-12-06 22:38:45,235 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8420454545454545 [2021-12-06 22:38:45,235 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1482 transitions. [2021-12-06 22:38:45,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1482 transitions. [2021-12-06 22:38:45,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:38:45,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1482 transitions. [2021-12-06 22:38:45,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 185.25) internal successors, (1482), 8 states have internal predecessors, (1482), 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) [2021-12-06 22:38:45,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 220.0) internal successors, (1980), 9 states have internal predecessors, (1980), 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) [2021-12-06 22:38:45,242 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 220.0) internal successors, (1980), 9 states have internal predecessors, (1980), 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) [2021-12-06 22:38:45,242 INFO L186 Difference]: Start difference. First operand has 210 places, 202 transitions, 493 flow. Second operand 8 states and 1482 transitions. [2021-12-06 22:38:45,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 271 transitions, 965 flow [2021-12-06 22:38:45,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 271 transitions, 965 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 22:38:45,257 INFO L242 Difference]: Finished difference. Result has 221 places, 212 transitions, 591 flow [2021-12-06 22:38:45,257 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=591, PETRI_PLACES=221, PETRI_TRANSITIONS=212} [2021-12-06 22:38:45,258 INFO L334 CegarLoopForPetriNet]: 202 programPoint places, 19 predicate places. [2021-12-06 22:38:45,258 INFO L470 AbstractCegarLoop]: Abstraction has has 221 places, 212 transitions, 591 flow [2021-12-06 22:38:45,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 175.4) internal successors, (877), 5 states have internal predecessors, (877), 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) [2021-12-06 22:38:45,259 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:38:45,259 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 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] [2021-12-06 22:38:45,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 22:38:45,259 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 22:38:45,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:38:45,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1025099248, now seen corresponding path program 1 times [2021-12-06 22:38:45,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:38:45,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035607052] [2021-12-06 22:38:45,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:38:45,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:38:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:38:45,308 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-06 22:38:45,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:38:45,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035607052] [2021-12-06 22:38:45,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035607052] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:38:45,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:38:45,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:38:45,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910725631] [2021-12-06 22:38:45,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:38:45,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:38:45,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:38:45,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:38:45,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:38:45,310 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 220 [2021-12-06 22:38:45,311 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 212 transitions, 591 flow. Second operand has 5 states, 5 states have (on average 175.6) internal successors, (878), 5 states have internal predecessors, (878), 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) [2021-12-06 22:38:45,311 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:38:45,311 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 220 [2021-12-06 22:38:45,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:38:50,239 INFO L129 PetriNetUnfolder]: 6614/38066 cut-off events. [2021-12-06 22:38:50,239 INFO L130 PetriNetUnfolder]: For 12543/13298 co-relation queries the response was YES. [2021-12-06 22:38:50,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56022 conditions, 38066 events. 6614/38066 cut-off events. For 12543/13298 co-relation queries the response was YES. Maximal size of possible extension queue 1041. Compared 550715 event pairs, 2372 based on Foata normal form. 68/35532 useless extension candidates. Maximal degree in co-relation 41437. Up to 4409 conditions per place. [2021-12-06 22:38:50,561 INFO L132 encePairwiseOnDemand]: 214/220 looper letters, 78 selfloop transitions, 32 changer transitions 0/290 dead transitions. [2021-12-06 22:38:50,561 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 290 transitions, 1215 flow [2021-12-06 22:38:50,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 22:38:50,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-06 22:38:50,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1480 transitions. [2021-12-06 22:38:50,565 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8409090909090909 [2021-12-06 22:38:50,565 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1480 transitions. [2021-12-06 22:38:50,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1480 transitions. [2021-12-06 22:38:50,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:38:50,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1480 transitions. [2021-12-06 22:38:50,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 185.0) internal successors, (1480), 8 states have internal predecessors, (1480), 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) [2021-12-06 22:38:50,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 220.0) internal successors, (1980), 9 states have internal predecessors, (1980), 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) [2021-12-06 22:38:50,572 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 220.0) internal successors, (1980), 9 states have internal predecessors, (1980), 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) [2021-12-06 22:38:50,573 INFO L186 Difference]: Start difference. First operand has 221 places, 212 transitions, 591 flow. Second operand 8 states and 1480 transitions. [2021-12-06 22:38:50,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 290 transitions, 1215 flow [2021-12-06 22:38:50,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 290 transitions, 1215 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 22:38:50,618 INFO L242 Difference]: Finished difference. Result has 232 places, 234 transitions, 877 flow [2021-12-06 22:38:50,618 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=877, PETRI_PLACES=232, PETRI_TRANSITIONS=234} [2021-12-06 22:38:50,619 INFO L334 CegarLoopForPetriNet]: 202 programPoint places, 30 predicate places. [2021-12-06 22:38:50,619 INFO L470 AbstractCegarLoop]: Abstraction has has 232 places, 234 transitions, 877 flow [2021-12-06 22:38:50,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 175.6) internal successors, (878), 5 states have internal predecessors, (878), 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) [2021-12-06 22:38:50,619 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:38:50,619 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:38:50,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 22:38:50,620 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 22:38:50,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:38:50,620 INFO L85 PathProgramCache]: Analyzing trace with hash 823299250, now seen corresponding path program 1 times [2021-12-06 22:38:50,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:38:50,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220908562] [2021-12-06 22:38:50,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:38:50,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:38:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:38:50,632 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:38:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:38:50,648 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:38:50,648 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 22:38:50,648 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (5 of 6 remaining) [2021-12-06 22:38:50,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2021-12-06 22:38:50,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2021-12-06 22:38:50,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2021-12-06 22:38:50,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2021-12-06 22:38:50,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2021-12-06 22:38:50,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 22:38:50,649 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-12-06 22:38:50,650 WARN L234 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-12-06 22:38:50,650 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-12-06 22:38:50,657 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,657 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,657 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,657 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,657 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,657 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,657 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,669 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:38:50,673 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-12-06 22:38:50,674 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:38:50,674 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 [2021-12-06 22:38:50,674 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-12-06 22:38:50,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 224 places, 244 transitions, 548 flow [2021-12-06 22:38:50,778 INFO L129 PetriNetUnfolder]: 161/1099 cut-off events. [2021-12-06 22:38:50,778 INFO L130 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2021-12-06 22:38:50,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1210 conditions, 1099 events. 161/1099 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 5509 event pairs, 23 based on Foata normal form. 0/949 useless extension candidates. Maximal degree in co-relation 778. Up to 80 conditions per place. [2021-12-06 22:38:50,787 INFO L82 GeneralOperation]: Start removeDead. Operand has 224 places, 244 transitions, 548 flow [2021-12-06 22:38:50,793 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 224 places, 244 transitions, 548 flow [2021-12-06 22:38:50,798 INFO L129 PetriNetUnfolder]: 6/114 cut-off events. [2021-12-06 22:38:50,798 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 22:38:50,798 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:38:50,798 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] [2021-12-06 22:38:50,799 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-06 22:38:50,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:38:50,799 INFO L85 PathProgramCache]: Analyzing trace with hash 478540307, now seen corresponding path program 1 times [2021-12-06 22:38:50,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:38:50,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150698880] [2021-12-06 22:38:50,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:38:50,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:38:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:38:50,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:38:50,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:38:50,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150698880] [2021-12-06 22:38:50,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150698880] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:38:50,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:38:50,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:38:50,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324119531] [2021-12-06 22:38:50,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:38:50,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:38:50,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:38:50,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:38:50,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:38:50,836 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 244 [2021-12-06 22:38:50,836 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 244 transitions, 548 flow. Second operand has 5 states, 5 states have (on average 192.2) internal successors, (961), 5 states have internal predecessors, (961), 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) [2021-12-06 22:38:50,836 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:38:50,837 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 244 [2021-12-06 22:38:50,837 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:38:54,973 INFO L129 PetriNetUnfolder]: 7238/33388 cut-off events. [2021-12-06 22:38:54,973 INFO L130 PetriNetUnfolder]: For 7687/8080 co-relation queries the response was YES. [2021-12-06 22:38:55,153 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45758 conditions, 33388 events. 7238/33388 cut-off events. For 7687/8080 co-relation queries the response was YES. Maximal size of possible extension queue 701. Compared 437080 event pairs, 2172 based on Foata normal form. 16132/47131 useless extension candidates. Maximal degree in co-relation 16798. Up to 3313 conditions per place. [2021-12-06 22:38:55,276 INFO L132 encePairwiseOnDemand]: 214/244 looper letters, 99 selfloop transitions, 8 changer transitions 0/298 dead transitions. [2021-12-06 22:38:55,276 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 298 transitions, 1012 flow [2021-12-06 22:38:55,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 22:38:55,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-06 22:38:55,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1774 transitions. [2021-12-06 22:38:55,280 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9088114754098361 [2021-12-06 22:38:55,281 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1774 transitions. [2021-12-06 22:38:55,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1774 transitions. [2021-12-06 22:38:55,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:38:55,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1774 transitions. [2021-12-06 22:38:55,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 221.75) internal successors, (1774), 8 states have internal predecessors, (1774), 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) [2021-12-06 22:38:55,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 244.0) internal successors, (2196), 9 states have internal predecessors, (2196), 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) [2021-12-06 22:38:55,288 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 244.0) internal successors, (2196), 9 states have internal predecessors, (2196), 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) [2021-12-06 22:38:55,288 INFO L186 Difference]: Start difference. First operand has 224 places, 244 transitions, 548 flow. Second operand 8 states and 1774 transitions. [2021-12-06 22:38:55,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 298 transitions, 1012 flow [2021-12-06 22:38:55,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 298 transitions, 1012 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 22:38:55,294 INFO L242 Difference]: Finished difference. Result has 231 places, 222 transitions, 549 flow [2021-12-06 22:38:55,295 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=549, PETRI_PLACES=231, PETRI_TRANSITIONS=222} [2021-12-06 22:38:55,295 INFO L334 CegarLoopForPetriNet]: 224 programPoint places, 7 predicate places. [2021-12-06 22:38:55,295 INFO L470 AbstractCegarLoop]: Abstraction has has 231 places, 222 transitions, 549 flow [2021-12-06 22:38:55,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 192.2) internal successors, (961), 5 states have internal predecessors, (961), 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) [2021-12-06 22:38:55,296 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:38:55,296 INFO L254 CegarLoopForPetriNet]: trace histogram [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] [2021-12-06 22:38:55,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 22:38:55,296 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-06 22:38:55,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:38:55,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1245790069, now seen corresponding path program 1 times [2021-12-06 22:38:55,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:38:55,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221187711] [2021-12-06 22:38:55,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:38:55,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:38:55,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:38:55,334 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 22:38:55,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:38:55,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221187711] [2021-12-06 22:38:55,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221187711] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:38:55,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:38:55,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:38:55,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547372234] [2021-12-06 22:38:55,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:38:55,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:38:55,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:38:55,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:38:55,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:38:55,336 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 244 [2021-12-06 22:38:55,337 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 222 transitions, 549 flow. Second operand has 5 states, 5 states have (on average 192.4) internal successors, (962), 5 states have internal predecessors, (962), 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) [2021-12-06 22:38:55,337 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:38:55,337 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 244 [2021-12-06 22:38:55,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:03,378 INFO L129 PetriNetUnfolder]: 12832/56417 cut-off events. [2021-12-06 22:39:03,378 INFO L130 PetriNetUnfolder]: For 19749/20685 co-relation queries the response was YES. [2021-12-06 22:39:03,728 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83711 conditions, 56417 events. 12832/56417 cut-off events. For 19749/20685 co-relation queries the response was YES. Maximal size of possible extension queue 1224. Compared 795866 event pairs, 3078 based on Foata normal form. 137/52504 useless extension candidates. Maximal degree in co-relation 58564. Up to 7154 conditions per place. [2021-12-06 22:39:03,943 INFO L132 encePairwiseOnDemand]: 238/244 looper letters, 97 selfloop transitions, 14 changer transitions 0/305 dead transitions. [2021-12-06 22:39:03,943 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 305 transitions, 1123 flow [2021-12-06 22:39:03,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 22:39:03,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-06 22:39:03,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1635 transitions. [2021-12-06 22:39:03,947 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8376024590163934 [2021-12-06 22:39:03,947 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1635 transitions. [2021-12-06 22:39:03,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1635 transitions. [2021-12-06 22:39:03,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:03,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1635 transitions. [2021-12-06 22:39:03,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 204.375) internal successors, (1635), 8 states have internal predecessors, (1635), 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) [2021-12-06 22:39:03,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 244.0) internal successors, (2196), 9 states have internal predecessors, (2196), 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) [2021-12-06 22:39:03,954 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 244.0) internal successors, (2196), 9 states have internal predecessors, (2196), 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) [2021-12-06 22:39:03,954 INFO L186 Difference]: Start difference. First operand has 231 places, 222 transitions, 549 flow. Second operand 8 states and 1635 transitions. [2021-12-06 22:39:03,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 305 transitions, 1123 flow [2021-12-06 22:39:04,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 305 transitions, 1123 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 22:39:04,002 INFO L242 Difference]: Finished difference. Result has 242 places, 232 transitions, 647 flow [2021-12-06 22:39:04,003 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=549, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=647, PETRI_PLACES=242, PETRI_TRANSITIONS=232} [2021-12-06 22:39:04,003 INFO L334 CegarLoopForPetriNet]: 224 programPoint places, 18 predicate places. [2021-12-06 22:39:04,003 INFO L470 AbstractCegarLoop]: Abstraction has has 242 places, 232 transitions, 647 flow [2021-12-06 22:39:04,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 192.4) internal successors, (962), 5 states have internal predecessors, (962), 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) [2021-12-06 22:39:04,004 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:04,004 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 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] [2021-12-06 22:39:04,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 22:39:04,004 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-06 22:39:04,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:04,004 INFO L85 PathProgramCache]: Analyzing trace with hash -782038302, now seen corresponding path program 1 times [2021-12-06 22:39:04,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:04,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371935741] [2021-12-06 22:39:04,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:04,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:04,045 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-06 22:39:04,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:04,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371935741] [2021-12-06 22:39:04,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371935741] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:04,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:04,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:39:04,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423159444] [2021-12-06 22:39:04,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:04,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:39:04,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:04,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:39:04,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:39:04,047 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 244 [2021-12-06 22:39:04,047 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 232 transitions, 647 flow. Second operand has 5 states, 5 states have (on average 192.6) internal successors, (963), 5 states have internal predecessors, (963), 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) [2021-12-06 22:39:04,048 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:04,048 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 244 [2021-12-06 22:39:04,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:18,040 INFO L129 PetriNetUnfolder]: 21556/99843 cut-off events. [2021-12-06 22:39:18,040 INFO L130 PetriNetUnfolder]: For 38161/39923 co-relation queries the response was YES. [2021-12-06 22:39:18,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 151382 conditions, 99843 events. 21556/99843 cut-off events. For 38161/39923 co-relation queries the response was YES. Maximal size of possible extension queue 2491. Compared 1587998 event pairs, 6834 based on Foata normal form. 159/93204 useless extension candidates. Maximal degree in co-relation 110603. Up to 13234 conditions per place. [2021-12-06 22:39:19,310 INFO L132 encePairwiseOnDemand]: 238/244 looper letters, 95 selfloop transitions, 32 changer transitions 0/324 dead transitions. [2021-12-06 22:39:19,310 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 324 transitions, 1373 flow [2021-12-06 22:39:19,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 22:39:19,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-06 22:39:19,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1633 transitions. [2021-12-06 22:39:19,314 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.836577868852459 [2021-12-06 22:39:19,315 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1633 transitions. [2021-12-06 22:39:19,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1633 transitions. [2021-12-06 22:39:19,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:19,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1633 transitions. [2021-12-06 22:39:19,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 204.125) internal successors, (1633), 8 states have internal predecessors, (1633), 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) [2021-12-06 22:39:19,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 244.0) internal successors, (2196), 9 states have internal predecessors, (2196), 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) [2021-12-06 22:39:19,322 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 244.0) internal successors, (2196), 9 states have internal predecessors, (2196), 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) [2021-12-06 22:39:19,322 INFO L186 Difference]: Start difference. First operand has 242 places, 232 transitions, 647 flow. Second operand 8 states and 1633 transitions. [2021-12-06 22:39:19,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 324 transitions, 1373 flow [2021-12-06 22:39:19,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 324 transitions, 1373 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 22:39:19,532 INFO L242 Difference]: Finished difference. Result has 253 places, 254 transitions, 933 flow [2021-12-06 22:39:19,533 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=933, PETRI_PLACES=253, PETRI_TRANSITIONS=254} [2021-12-06 22:39:19,533 INFO L334 CegarLoopForPetriNet]: 224 programPoint places, 29 predicate places. [2021-12-06 22:39:19,533 INFO L470 AbstractCegarLoop]: Abstraction has has 253 places, 254 transitions, 933 flow [2021-12-06 22:39:19,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 192.6) internal successors, (963), 5 states have internal predecessors, (963), 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) [2021-12-06 22:39:19,534 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:19,534 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] [2021-12-06 22:39:19,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 22:39:19,534 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-06 22:39:19,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:19,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1341293639, now seen corresponding path program 1 times [2021-12-06 22:39:19,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:19,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461585860] [2021-12-06 22:39:19,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:19,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:19,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:19,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:19,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461585860] [2021-12-06 22:39:19,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461585860] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:39:19,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777267869] [2021-12-06 22:39:19,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:19,566 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:39:19,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:39:19,567 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:39:19,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 22:39:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:19,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 22:39:19,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:39:19,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:19,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:39:19,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:19,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777267869] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:39:19,880 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:39:19,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-12-06 22:39:19,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884040332] [2021-12-06 22:39:19,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:39:19,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 22:39:19,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:19,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 22:39:19,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-12-06 22:39:19,882 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 244 [2021-12-06 22:39:19,884 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 254 transitions, 933 flow. Second operand has 10 states, 10 states have (on average 199.3) internal successors, (1993), 10 states have internal predecessors, (1993), 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) [2021-12-06 22:39:19,884 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:19,884 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 244 [2021-12-06 22:39:19,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:21,865 INFO L129 PetriNetUnfolder]: 1032/13330 cut-off events. [2021-12-06 22:39:21,865 INFO L130 PetriNetUnfolder]: For 5092/5251 co-relation queries the response was YES. [2021-12-06 22:39:21,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17195 conditions, 13330 events. 1032/13330 cut-off events. For 5092/5251 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 170166 event pairs, 333 based on Foata normal form. 6/12577 useless extension candidates. Maximal degree in co-relation 11080. Up to 1191 conditions per place. [2021-12-06 22:39:22,004 INFO L132 encePairwiseOnDemand]: 238/244 looper letters, 20 selfloop transitions, 9 changer transitions 0/265 dead transitions. [2021-12-06 22:39:22,004 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 265 transitions, 1013 flow [2021-12-06 22:39:22,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 22:39:22,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-06 22:39:22,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1805 transitions. [2021-12-06 22:39:22,008 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8219489981785064 [2021-12-06 22:39:22,008 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1805 transitions. [2021-12-06 22:39:22,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1805 transitions. [2021-12-06 22:39:22,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:22,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1805 transitions. [2021-12-06 22:39:22,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 200.55555555555554) internal successors, (1805), 9 states have internal predecessors, (1805), 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) [2021-12-06 22:39:22,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 244.0) internal successors, (2440), 10 states have internal predecessors, (2440), 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) [2021-12-06 22:39:22,017 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 244.0) internal successors, (2440), 10 states have internal predecessors, (2440), 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) [2021-12-06 22:39:22,018 INFO L186 Difference]: Start difference. First operand has 253 places, 254 transitions, 933 flow. Second operand 9 states and 1805 transitions. [2021-12-06 22:39:22,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 265 transitions, 1013 flow [2021-12-06 22:39:22,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 265 transitions, 1013 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 22:39:22,038 INFO L242 Difference]: Finished difference. Result has 265 places, 261 transitions, 987 flow [2021-12-06 22:39:22,039 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=987, PETRI_PLACES=265, PETRI_TRANSITIONS=261} [2021-12-06 22:39:22,039 INFO L334 CegarLoopForPetriNet]: 224 programPoint places, 41 predicate places. [2021-12-06 22:39:22,039 INFO L470 AbstractCegarLoop]: Abstraction has has 265 places, 261 transitions, 987 flow [2021-12-06 22:39:22,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 199.3) internal successors, (1993), 10 states have internal predecessors, (1993), 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) [2021-12-06 22:39:22,041 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:22,041 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1] [2021-12-06 22:39:22,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 22:39:22,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-06 22:39:22,243 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-06 22:39:22,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:22,244 INFO L85 PathProgramCache]: Analyzing trace with hash -639176784, now seen corresponding path program 1 times [2021-12-06 22:39:22,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:22,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218139019] [2021-12-06 22:39:22,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:22,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:22,326 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-06 22:39:22,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:22,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218139019] [2021-12-06 22:39:22,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218139019] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:22,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:22,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:39:22,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871693817] [2021-12-06 22:39:22,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:22,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:39:22,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:22,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:39:22,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:39:22,328 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 244 [2021-12-06 22:39:22,329 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 261 transitions, 987 flow. Second operand has 5 states, 5 states have (on average 192.8) internal successors, (964), 5 states have internal predecessors, (964), 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) [2021-12-06 22:39:22,329 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:22,329 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 244 [2021-12-06 22:39:22,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:52,211 INFO L129 PetriNetUnfolder]: 36072/194452 cut-off events. [2021-12-06 22:39:52,211 INFO L130 PetriNetUnfolder]: For 71796/73041 co-relation queries the response was YES. [2021-12-06 22:39:54,552 INFO L84 FinitePrefix]: Finished finitePrefix Result has 287104 conditions, 194452 events. 36072/194452 cut-off events. For 71796/73041 co-relation queries the response was YES. Maximal size of possible extension queue 5010. Compared 3480445 event pairs, 15593 based on Foata normal form. 301/182461 useless extension candidates. Maximal degree in co-relation 206974. Up to 23265 conditions per place. [2021-12-06 22:39:55,283 INFO L132 encePairwiseOnDemand]: 238/244 looper letters, 92 selfloop transitions, 86 changer transitions 1/386 dead transitions. [2021-12-06 22:39:55,283 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 386 transitions, 2309 flow [2021-12-06 22:39:55,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 22:39:55,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-06 22:39:55,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1631 transitions. [2021-12-06 22:39:55,287 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8355532786885246 [2021-12-06 22:39:55,287 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1631 transitions. [2021-12-06 22:39:55,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1631 transitions. [2021-12-06 22:39:55,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:55,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1631 transitions. [2021-12-06 22:39:55,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 203.875) internal successors, (1631), 8 states have internal predecessors, (1631), 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) [2021-12-06 22:39:55,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 244.0) internal successors, (2196), 9 states have internal predecessors, (2196), 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) [2021-12-06 22:39:55,293 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 244.0) internal successors, (2196), 9 states have internal predecessors, (2196), 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) [2021-12-06 22:39:55,293 INFO L186 Difference]: Start difference. First operand has 265 places, 261 transitions, 987 flow. Second operand 8 states and 1631 transitions. [2021-12-06 22:39:55,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 386 transitions, 2309 flow [2021-12-06 22:39:55,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 386 transitions, 2309 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 22:39:55,988 INFO L242 Difference]: Finished difference. Result has 276 places, 319 transitions, 1957 flow [2021-12-06 22:39:55,989 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=987, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1957, PETRI_PLACES=276, PETRI_TRANSITIONS=319} [2021-12-06 22:39:55,989 INFO L334 CegarLoopForPetriNet]: 224 programPoint places, 52 predicate places. [2021-12-06 22:39:55,989 INFO L470 AbstractCegarLoop]: Abstraction has has 276 places, 319 transitions, 1957 flow [2021-12-06 22:39:55,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 192.8) internal successors, (964), 5 states have internal predecessors, (964), 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) [2021-12-06 22:39:55,990 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:55,990 INFO L254 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:39:55,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 22:39:55,990 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-06 22:39:55,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:55,991 INFO L85 PathProgramCache]: Analyzing trace with hash -2073556215, now seen corresponding path program 1 times [2021-12-06 22:39:55,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:55,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964928221] [2021-12-06 22:39:55,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:55,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:56,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:39:56,004 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:39:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:39:56,021 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:39:56,021 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 22:39:56,021 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (6 of 7 remaining) [2021-12-06 22:39:56,021 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2021-12-06 22:39:56,021 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2021-12-06 22:39:56,022 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2021-12-06 22:39:56,022 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2021-12-06 22:39:56,022 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2021-12-06 22:39:56,022 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2021-12-06 22:39:56,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 22:39:56,022 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-06 22:39:56,022 WARN L234 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2021-12-06 22:39:56,022 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2021-12-06 22:39:56,030 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,030 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,030 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,030 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,030 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,030 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,032 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,032 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,032 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,032 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,032 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,032 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,032 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,032 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,032 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,032 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,032 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,032 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,032 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,032 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,032 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,045 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,045 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,045 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,045 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,045 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,045 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,045 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,045 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,045 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,045 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,047 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,047 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,047 WARN L322 ript$VariableManager]: TermVariabe |t_funThread5of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,047 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,047 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,047 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,047 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,047 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,047 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,047 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,047 WARN L322 ript$VariableManager]: TermVariabe |t_funThread6of6ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:56,049 INFO L148 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2021-12-06 22:39:56,050 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:39:56,050 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 [2021-12-06 22:39:56,050 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-12-06 22:39:56,052 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 246 places, 268 transitions, 614 flow [2021-12-06 22:39:56,253 INFO L129 PetriNetUnfolder]: 287/1753 cut-off events. [2021-12-06 22:39:56,253 INFO L130 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2021-12-06 22:39:56,270 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1985 conditions, 1753 events. 287/1753 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10208 event pairs, 72 based on Foata normal form. 0/1524 useless extension candidates. Maximal degree in co-relation 1198. Up to 192 conditions per place. [2021-12-06 22:39:56,271 INFO L82 GeneralOperation]: Start removeDead. Operand has 246 places, 268 transitions, 614 flow [2021-12-06 22:39:56,281 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 246 places, 268 transitions, 614 flow [2021-12-06 22:39:56,285 INFO L129 PetriNetUnfolder]: 5/108 cut-off events. [2021-12-06 22:39:56,286 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 22:39:56,286 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:56,286 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:39:56,286 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 22:39:56,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:56,286 INFO L85 PathProgramCache]: Analyzing trace with hash 733412369, now seen corresponding path program 1 times [2021-12-06 22:39:56,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:56,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316949088] [2021-12-06 22:39:56,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:56,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:56,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:56,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:56,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:56,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316949088] [2021-12-06 22:39:56,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316949088] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:56,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:56,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:39:56,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864208253] [2021-12-06 22:39:56,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:56,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:39:56,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:56,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:39:56,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:39:56,319 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 268 [2021-12-06 22:39:56,319 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 268 transitions, 614 flow. Second operand has 5 states, 5 states have (on average 209.2) internal successors, (1046), 5 states have internal predecessors, (1046), 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) [2021-12-06 22:39:56,319 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:56,319 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 268 [2021-12-06 22:39:56,319 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:40:07,364 INFO L129 PetriNetUnfolder]: 22437/78466 cut-off events. [2021-12-06 22:40:07,364 INFO L130 PetriNetUnfolder]: For 27493/28240 co-relation queries the response was YES. [2021-12-06 22:40:08,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116540 conditions, 78466 events. 22437/78466 cut-off events. For 27493/28240 co-relation queries the response was YES. Maximal size of possible extension queue 1526. Compared 1080129 event pairs, 3864 based on Foata normal form. 48851/122554 useless extension candidates. Maximal degree in co-relation 67778. Up to 9411 conditions per place. [2021-12-06 22:40:08,397 INFO L132 encePairwiseOnDemand]: 235/268 looper letters, 116 selfloop transitions, 8 changer transitions 0/332 dead transitions. [2021-12-06 22:40:08,397 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 332 transitions, 1176 flow [2021-12-06 22:40:08,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 22:40:08,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-06 22:40:08,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1948 transitions. [2021-12-06 22:40:08,401 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9085820895522388 [2021-12-06 22:40:08,401 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1948 transitions. [2021-12-06 22:40:08,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1948 transitions. [2021-12-06 22:40:08,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:40:08,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1948 transitions. [2021-12-06 22:40:08,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 243.5) internal successors, (1948), 8 states have internal predecessors, (1948), 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) [2021-12-06 22:40:08,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 268.0) internal successors, (2412), 9 states have internal predecessors, (2412), 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) [2021-12-06 22:40:08,408 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 268.0) internal successors, (2412), 9 states have internal predecessors, (2412), 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) [2021-12-06 22:40:08,408 INFO L186 Difference]: Start difference. First operand has 246 places, 268 transitions, 614 flow. Second operand 8 states and 1948 transitions. [2021-12-06 22:40:08,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 332 transitions, 1176 flow [2021-12-06 22:40:08,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 332 transitions, 1176 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 22:40:08,432 INFO L242 Difference]: Finished difference. Result has 252 places, 242 transitions, 607 flow [2021-12-06 22:40:08,433 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=607, PETRI_PLACES=252, PETRI_TRANSITIONS=242} [2021-12-06 22:40:08,433 INFO L334 CegarLoopForPetriNet]: 246 programPoint places, 6 predicate places. [2021-12-06 22:40:08,433 INFO L470 AbstractCegarLoop]: Abstraction has has 252 places, 242 transitions, 607 flow [2021-12-06 22:40:08,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 209.2) internal successors, (1046), 5 states have internal predecessors, (1046), 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) [2021-12-06 22:40:08,434 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:40:08,434 INFO L254 CegarLoopForPetriNet]: trace histogram [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] [2021-12-06 22:40:08,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 22:40:08,434 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 22:40:08,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:40:08,435 INFO L85 PathProgramCache]: Analyzing trace with hash -2098515873, now seen corresponding path program 1 times [2021-12-06 22:40:08,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:40:08,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610589593] [2021-12-06 22:40:08,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:40:08,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:40:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:40:08,467 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 22:40:08,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:40:08,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610589593] [2021-12-06 22:40:08,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610589593] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:40:08,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:40:08,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:40:08,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059398358] [2021-12-06 22:40:08,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:40:08,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:40:08,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:40:08,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:40:08,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:40:08,470 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 268 [2021-12-06 22:40:08,470 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 242 transitions, 607 flow. Second operand has 5 states, 5 states have (on average 209.4) internal successors, (1047), 5 states have internal predecessors, (1047), 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) [2021-12-06 22:40:08,470 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:40:08,470 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 268 [2021-12-06 22:40:08,470 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:40:29,816 INFO L129 PetriNetUnfolder]: 39532/144569 cut-off events. [2021-12-06 22:40:29,816 INFO L130 PetriNetUnfolder]: For 60115/62000 co-relation queries the response was YES. [2021-12-06 22:40:31,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 223185 conditions, 144569 events. 39532/144569 cut-off events. For 60115/62000 co-relation queries the response was YES. Maximal size of possible extension queue 3031. Compared 2204108 event pairs, 8545 based on Foata normal form. 274/135420 useless extension candidates. Maximal degree in co-relation 154778. Up to 20530 conditions per place. [2021-12-06 22:40:32,247 INFO L132 encePairwiseOnDemand]: 262/268 looper letters, 114 selfloop transitions, 14 changer transitions 0/339 dead transitions. [2021-12-06 22:40:32,247 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 339 transitions, 1287 flow [2021-12-06 22:40:32,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 22:40:32,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-06 22:40:32,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1788 transitions. [2021-12-06 22:40:32,251 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8339552238805971 [2021-12-06 22:40:32,251 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1788 transitions. [2021-12-06 22:40:32,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1788 transitions. [2021-12-06 22:40:32,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:40:32,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1788 transitions. [2021-12-06 22:40:32,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 223.5) internal successors, (1788), 8 states have internal predecessors, (1788), 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) [2021-12-06 22:40:32,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 268.0) internal successors, (2412), 9 states have internal predecessors, (2412), 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) [2021-12-06 22:40:32,257 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 268.0) internal successors, (2412), 9 states have internal predecessors, (2412), 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) [2021-12-06 22:40:32,257 INFO L186 Difference]: Start difference. First operand has 252 places, 242 transitions, 607 flow. Second operand 8 states and 1788 transitions. [2021-12-06 22:40:32,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 339 transitions, 1287 flow [2021-12-06 22:40:32,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 339 transitions, 1287 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 22:40:32,422 INFO L242 Difference]: Finished difference. Result has 263 places, 252 transitions, 705 flow [2021-12-06 22:40:32,422 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=607, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=705, PETRI_PLACES=263, PETRI_TRANSITIONS=252} [2021-12-06 22:40:32,423 INFO L334 CegarLoopForPetriNet]: 246 programPoint places, 17 predicate places. [2021-12-06 22:40:32,423 INFO L470 AbstractCegarLoop]: Abstraction has has 263 places, 252 transitions, 705 flow [2021-12-06 22:40:32,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 209.4) internal successors, (1047), 5 states have internal predecessors, (1047), 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) [2021-12-06 22:40:32,423 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:40:32,423 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 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] [2021-12-06 22:40:32,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 22:40:32,423 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 22:40:32,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:40:32,424 INFO L85 PathProgramCache]: Analyzing trace with hash -328035570, now seen corresponding path program 1 times [2021-12-06 22:40:32,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:40:32,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695297886] [2021-12-06 22:40:32,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:40:32,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:40:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:40:32,459 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-06 22:40:32,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:40:32,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695297886] [2021-12-06 22:40:32,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695297886] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:40:32,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:40:32,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:40:32,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882734312] [2021-12-06 22:40:32,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:40:32,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:40:32,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:40:32,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:40:32,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:40:32,463 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 268 [2021-12-06 22:40:32,464 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 252 transitions, 705 flow. Second operand has 5 states, 5 states have (on average 209.6) internal successors, (1048), 5 states have internal predecessors, (1048), 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) [2021-12-06 22:40:32,464 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:40:32,464 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 268 [2021-12-06 22:40:32,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:41:15,635 INFO L129 PetriNetUnfolder]: 68410/271538 cut-off events. [2021-12-06 22:41:15,635 INFO L130 PetriNetUnfolder]: For 114505/118394 co-relation queries the response was YES. [2021-12-06 22:41:19,221 INFO L84 FinitePrefix]: Finished finitePrefix Result has 420555 conditions, 271538 events. 68410/271538 cut-off events. For 114505/118394 co-relation queries the response was YES. Maximal size of possible extension queue 5964. Compared 4641312 event pairs, 20391 based on Foata normal form. 354/253562 useless extension candidates. Maximal degree in co-relation 305167. Up to 38916 conditions per place. [2021-12-06 22:41:20,628 INFO L132 encePairwiseOnDemand]: 262/268 looper letters, 112 selfloop transitions, 32 changer transitions 0/358 dead transitions. [2021-12-06 22:41:20,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 358 transitions, 1537 flow [2021-12-06 22:41:20,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 22:41:20,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-06 22:41:20,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1786 transitions. [2021-12-06 22:41:20,631 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8330223880597015 [2021-12-06 22:41:20,631 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1786 transitions. [2021-12-06 22:41:20,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1786 transitions. [2021-12-06 22:41:20,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:41:20,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1786 transitions. [2021-12-06 22:41:20,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 223.25) internal successors, (1786), 8 states have internal predecessors, (1786), 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) [2021-12-06 22:41:20,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 268.0) internal successors, (2412), 9 states have internal predecessors, (2412), 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) [2021-12-06 22:41:20,635 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 268.0) internal successors, (2412), 9 states have internal predecessors, (2412), 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) [2021-12-06 22:41:20,635 INFO L186 Difference]: Start difference. First operand has 263 places, 252 transitions, 705 flow. Second operand 8 states and 1786 transitions. [2021-12-06 22:41:20,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 358 transitions, 1537 flow [2021-12-06 22:41:21,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 358 transitions, 1537 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 22:41:21,321 INFO L242 Difference]: Finished difference. Result has 274 places, 274 transitions, 991 flow [2021-12-06 22:41:21,322 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=991, PETRI_PLACES=274, PETRI_TRANSITIONS=274} [2021-12-06 22:41:21,322 INFO L334 CegarLoopForPetriNet]: 246 programPoint places, 28 predicate places. [2021-12-06 22:41:21,322 INFO L470 AbstractCegarLoop]: Abstraction has has 274 places, 274 transitions, 991 flow [2021-12-06 22:41:21,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 209.6) internal successors, (1048), 5 states have internal predecessors, (1048), 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) [2021-12-06 22:41:21,323 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:41:21,323 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] [2021-12-06 22:41:21,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 22:41:21,323 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 22:41:21,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:41:21,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1035332783, now seen corresponding path program 1 times [2021-12-06 22:41:21,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:41:21,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497059949] [2021-12-06 22:41:21,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:41:21,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:41:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:41:21,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:41:21,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:41:21,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497059949] [2021-12-06 22:41:21,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497059949] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:41:21,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966011524] [2021-12-06 22:41:21,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:41:21,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:41:21,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:41:21,357 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:41:21,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 22:41:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:41:21,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 22:41:21,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:41:21,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:41:21,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:41:21,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:41:21,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966011524] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:41:21,572 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:41:21,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-12-06 22:41:21,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372403953] [2021-12-06 22:41:21,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:41:21,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 22:41:21,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:41:21,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 22:41:21,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-12-06 22:41:21,575 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 268 [2021-12-06 22:41:21,576 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 274 transitions, 991 flow. Second operand has 10 states, 10 states have (on average 217.3) internal successors, (2173), 10 states have internal predecessors, (2173), 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) [2021-12-06 22:41:21,576 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:41:21,576 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 268 [2021-12-06 22:41:21,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:41:25,646 INFO L129 PetriNetUnfolder]: 2340/23709 cut-off events. [2021-12-06 22:41:25,646 INFO L130 PetriNetUnfolder]: For 11097/11335 co-relation queries the response was YES. [2021-12-06 22:41:25,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31482 conditions, 23709 events. 2340/23709 cut-off events. For 11097/11335 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 323183 event pairs, 1009 based on Foata normal form. 8/22350 useless extension candidates. Maximal degree in co-relation 20069. Up to 2906 conditions per place. [2021-12-06 22:41:25,947 INFO L132 encePairwiseOnDemand]: 262/268 looper letters, 22 selfloop transitions, 9 changer transitions 0/285 dead transitions. [2021-12-06 22:41:25,947 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 285 transitions, 1075 flow [2021-12-06 22:41:25,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 22:41:25,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-06 22:41:25,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1969 transitions. [2021-12-06 22:41:25,951 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8163349917081261 [2021-12-06 22:41:25,951 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1969 transitions. [2021-12-06 22:41:25,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1969 transitions. [2021-12-06 22:41:25,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:41:25,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1969 transitions. [2021-12-06 22:41:25,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 218.77777777777777) internal successors, (1969), 9 states have internal predecessors, (1969), 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) [2021-12-06 22:41:25,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 268.0) internal successors, (2680), 10 states have internal predecessors, (2680), 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) [2021-12-06 22:41:25,957 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 268.0) internal successors, (2680), 10 states have internal predecessors, (2680), 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) [2021-12-06 22:41:25,957 INFO L186 Difference]: Start difference. First operand has 274 places, 274 transitions, 991 flow. Second operand 9 states and 1969 transitions. [2021-12-06 22:41:25,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 285 transitions, 1075 flow [2021-12-06 22:41:25,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 285 transitions, 1075 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 22:41:25,976 INFO L242 Difference]: Finished difference. Result has 286 places, 281 transitions, 1045 flow [2021-12-06 22:41:25,977 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=991, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1045, PETRI_PLACES=286, PETRI_TRANSITIONS=281} [2021-12-06 22:41:25,977 INFO L334 CegarLoopForPetriNet]: 246 programPoint places, 40 predicate places. [2021-12-06 22:41:25,977 INFO L470 AbstractCegarLoop]: Abstraction has has 286 places, 281 transitions, 1045 flow [2021-12-06 22:41:25,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 217.3) internal successors, (2173), 10 states have internal predecessors, (2173), 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) [2021-12-06 22:41:25,978 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:41:25,978 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1] [2021-12-06 22:41:26,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 22:41:26,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032ccf88-fae9-46c5-9d09-c2614c16339f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:41:26,179 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 22:41:26,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:41:26,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1874207656, now seen corresponding path program 1 times [2021-12-06 22:41:26,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:41:26,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579254697] [2021-12-06 22:41:26,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:41:26,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:41:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:41:26,226 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-06 22:41:26,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:41:26,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579254697] [2021-12-06 22:41:26,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579254697] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:41:26,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:41:26,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:41:26,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350368429] [2021-12-06 22:41:26,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:41:26,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:41:26,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:41:26,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:41:26,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:41:26,229 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 268 [2021-12-06 22:41:26,230 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 281 transitions, 1045 flow. Second operand has 5 states, 5 states have (on average 209.8) internal successors, (1049), 5 states have internal predecessors, (1049), 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) [2021-12-06 22:41:26,231 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:41:26,231 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 268 [2021-12-06 22:41:26,231 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:43:00,864 INFO L129 PetriNetUnfolder]: 120452/541483 cut-off events. [2021-12-06 22:43:00,864 INFO L130 PetriNetUnfolder]: For 222834/225758 co-relation queries the response was YES. [2021-12-06 22:43:09,193 INFO L84 FinitePrefix]: Finished finitePrefix Result has 819364 conditions, 541483 events. 120452/541483 cut-off events. For 222834/225758 co-relation queries the response was YES. Maximal size of possible extension queue 11969. Compared 10387652 event pairs, 46332 based on Foata normal form. 700/508702 useless extension candidates. Maximal degree in co-relation 585741. Up to 71549 conditions per place. [2021-12-06 22:43:11,903 INFO L132 encePairwiseOnDemand]: 262/268 looper letters, 110 selfloop transitions, 86 changer transitions 0/420 dead transitions. [2021-12-06 22:43:11,903 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 420 transitions, 2473 flow [2021-12-06 22:43:11,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 22:43:11,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-06 22:43:11,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1784 transitions. [2021-12-06 22:43:11,906 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.832089552238806 [2021-12-06 22:43:11,906 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1784 transitions. [2021-12-06 22:43:11,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1784 transitions. [2021-12-06 22:43:11,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:43:11,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1784 transitions. [2021-12-06 22:43:11,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 223.0) internal successors, (1784), 8 states have internal predecessors, (1784), 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) [2021-12-06 22:43:11,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 268.0) internal successors, (2412), 9 states have internal predecessors, (2412), 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) [2021-12-06 22:43:11,911 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 268.0) internal successors, (2412), 9 states have internal predecessors, (2412), 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) [2021-12-06 22:43:11,911 INFO L186 Difference]: Start difference. First operand has 286 places, 281 transitions, 1045 flow. Second operand 8 states and 1784 transitions. [2021-12-06 22:43:11,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 420 transitions, 2473 flow [2021-12-06 22:43:13,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 420 transitions, 2473 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 22:43:13,950 INFO L242 Difference]: Finished difference. Result has 297 places, 339 transitions, 2015 flow [2021-12-06 22:43:13,951 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=1045, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2015, PETRI_PLACES=297, PETRI_TRANSITIONS=339} [2021-12-06 22:43:13,951 INFO L334 CegarLoopForPetriNet]: 246 programPoint places, 51 predicate places. [2021-12-06 22:43:13,951 INFO L470 AbstractCegarLoop]: Abstraction has has 297 places, 339 transitions, 2015 flow [2021-12-06 22:43:13,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 209.8) internal successors, (1049), 5 states have internal predecessors, (1049), 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) [2021-12-06 22:43:13,951 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:43:13,951 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:43:13,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-06 22:43:13,952 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 22:43:13,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:43:13,952 INFO L85 PathProgramCache]: Analyzing trace with hash -287707517, now seen corresponding path program 1 times [2021-12-06 22:43:13,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:43:13,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997108931] [2021-12-06 22:43:13,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:43:13,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:43:13,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:43:14,002 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-12-06 22:43:14,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:43:14,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997108931] [2021-12-06 22:43:14,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997108931] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:43:14,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:43:14,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:43:14,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262201619] [2021-12-06 22:43:14,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:43:14,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:43:14,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:43:14,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:43:14,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:43:14,005 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 268 [2021-12-06 22:43:14,006 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 339 transitions, 2015 flow. Second operand has 5 states, 5 states have (on average 210.0) internal successors, (1050), 5 states have internal predecessors, (1050), 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) [2021-12-06 22:43:14,006 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:43:14,006 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 268 [2021-12-06 22:43:14,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand