./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_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_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/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_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/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_a1e6f26b-5850-4033-86f1-de205fe80dca/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 dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 21:37:29,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 21:37:29,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 21:37:29,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 21:37:29,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 21:37:29,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 21:37:29,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 21:37:29,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 21:37:29,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 21:37:29,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 21:37:29,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 21:37:29,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 21:37:29,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 21:37:29,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 21:37:29,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 21:37:29,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 21:37:29,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 21:37:29,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 21:37:29,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 21:37:29,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 21:37:29,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 21:37:29,872 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 21:37:29,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 21:37:29,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 21:37:29,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 21:37:29,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 21:37:29,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 21:37:29,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 21:37:29,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 21:37:29,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 21:37:29,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 21:37:29,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 21:37:29,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 21:37:29,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 21:37:29,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 21:37:29,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 21:37:29,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 21:37:29,883 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 21:37:29,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 21:37:29,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 21:37:29,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 21:37:29,885 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 21:37:29,914 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 21:37:29,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 21:37:29,914 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 21:37:29,915 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 21:37:29,915 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 21:37:29,916 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 21:37:29,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 21:37:29,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 21:37:29,917 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 21:37:29,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 21:37:29,917 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 21:37:29,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 21:37:29,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 21:37:29,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 21:37:29,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 21:37:29,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 21:37:29,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 21:37:29,918 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 21:37:29,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 21:37:29,918 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 21:37:29,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 21:37:29,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 21:37:29,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 21:37:29,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 21:37:29,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:37:29,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 21:37:29,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 21:37:29,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 21:37:29,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 21:37:29,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 21:37:29,920 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 21:37:29,921 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 21:37:29,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 21:37:29,921 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 21:37:29,921 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_a1e6f26b-5850-4033-86f1-de205fe80dca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 [2021-12-06 21:37:30,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 21:37:30,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 21:37:30,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 21:37:30,130 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 21:37:30,131 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 21:37:30,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2021-12-06 21:37:30,180 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/data/333f20a0d/ea538cfeaa9049a3892d21ffc012b5fa/FLAG0b934a98c [2021-12-06 21:37:30,626 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 21:37:30,627 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2021-12-06 21:37:30,639 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/data/333f20a0d/ea538cfeaa9049a3892d21ffc012b5fa/FLAG0b934a98c [2021-12-06 21:37:30,651 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/data/333f20a0d/ea538cfeaa9049a3892d21ffc012b5fa [2021-12-06 21:37:30,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 21:37:30,655 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 21:37:30,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 21:37:30,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 21:37:30,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 21:37:30,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:37:30" (1/1) ... [2021-12-06 21:37:30,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f611e5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:37:30, skipping insertion in model container [2021-12-06 21:37:30,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:37:30" (1/1) ... [2021-12-06 21:37:30,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 21:37:30,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 21:37:30,972 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_a1e6f26b-5850-4033-86f1-de205fe80dca/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i[47038,47051] [2021-12-06 21:37:30,981 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-06 21:37:30,981 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-06 21:37:30,981 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-06 21:37:30,982 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-06 21:37:30,998 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:37:31,011 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 21:37:31,039 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_a1e6f26b-5850-4033-86f1-de205fe80dca/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i[47038,47051] [2021-12-06 21:37:31,041 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-06 21:37:31,042 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-06 21:37:31,042 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-06 21:37:31,042 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-06 21:37:31,053 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:37:31,099 INFO L208 MainTranslator]: Completed translation [2021-12-06 21:37:31,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:37:31 WrapperNode [2021-12-06 21:37:31,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 21:37:31,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 21:37:31,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 21:37:31,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 21:37:31,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:37:31" (1/1) ... [2021-12-06 21:37:31,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:37:31" (1/1) ... [2021-12-06 21:37:31,157 INFO L137 Inliner]: procedures = 279, calls = 51, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 223 [2021-12-06 21:37:31,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 21:37:31,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 21:37:31,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 21:37:31,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 21:37:31,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:37:31" (1/1) ... [2021-12-06 21:37:31,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:37:31" (1/1) ... [2021-12-06 21:37:31,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:37:31" (1/1) ... [2021-12-06 21:37:31,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:37:31" (1/1) ... [2021-12-06 21:37:31,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:37:31" (1/1) ... [2021-12-06 21:37:31,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:37:31" (1/1) ... [2021-12-06 21:37:31,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:37:31" (1/1) ... [2021-12-06 21:37:31,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 21:37:31,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 21:37:31,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 21:37:31,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 21:37:31,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:37:31" (1/1) ... [2021-12-06 21:37:31,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:37:31,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:37:31,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 21:37:31,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 21:37:31,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 21:37:31,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 21:37:31,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 21:37:31,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 21:37:31,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 21:37:31,269 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-06 21:37:31,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 21:37:31,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 21:37:31,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 21:37:31,269 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-06 21:37:31,269 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-06 21:37:31,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 21:37:31,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 21:37:31,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 21:37:31,271 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 21:37:31,384 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 21:37:31,385 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 21:37:31,635 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 21:37:31,644 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 21:37:31,644 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-12-06 21:37:31,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:37:31 BoogieIcfgContainer [2021-12-06 21:37:31,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 21:37:31,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 21:37:31,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 21:37:31,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 21:37:31,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 09:37:30" (1/3) ... [2021-12-06 21:37:31,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce61558 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:37:31, skipping insertion in model container [2021-12-06 21:37:31,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:37:31" (2/3) ... [2021-12-06 21:37:31,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce61558 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:37:31, skipping insertion in model container [2021-12-06 21:37:31,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:37:31" (3/3) ... [2021-12-06 21:37:31,654 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2021-12-06 21:37:31,659 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-06 21:37:31,659 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 21:37:31,659 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 21:37:31,659 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-06 21:37:31,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,696 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,696 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,696 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,696 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,696 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,696 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,697 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,697 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,697 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,697 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,697 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,697 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,698 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,698 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,698 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,698 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,698 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,698 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,699 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,699 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,699 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,699 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,699 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,699 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,701 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,701 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,701 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,701 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,701 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,701 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,702 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,702 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,702 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,702 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,702 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,702 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,702 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,703 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,703 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,703 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,703 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,703 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,703 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,704 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,704 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,704 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,704 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,704 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,704 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,705 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,705 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,705 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,705 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,705 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,705 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,705 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,706 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,706 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,706 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,706 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,706 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,706 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,706 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,707 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,707 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,707 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,707 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,707 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,707 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,709 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,709 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,709 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,709 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,709 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,709 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,710 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,710 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,710 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,710 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,710 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,710 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,710 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,711 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,711 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,711 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,711 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,711 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,711 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,711 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,712 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,712 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,712 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,712 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,712 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,712 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,712 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,714 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,714 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,714 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,714 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,714 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,714 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,714 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,715 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,715 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,715 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,715 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,715 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,715 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,717 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,717 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,717 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,717 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,717 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,717 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,717 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,718 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,718 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,718 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,718 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,718 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,718 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,718 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,719 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,719 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,719 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,719 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,719 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,719 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,719 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,720 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,720 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,720 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,720 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,720 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,720 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,721 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,721 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,721 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,721 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,721 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,721 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,721 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,721 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,722 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,722 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,722 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,722 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,722 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,722 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,722 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,723 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,723 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,723 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,723 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,723 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,723 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,723 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,724 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,724 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,724 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,724 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,724 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,724 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,724 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,724 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,727 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,727 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:37:31,734 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-06 21:37:31,769 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 21:37:31,774 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 21:37:31,774 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-06 21:37:31,785 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 232 places, 256 transitions, 520 flow [2021-12-06 21:37:31,840 INFO L129 PetriNetUnfolder]: 29/273 cut-off events. [2021-12-06 21:37:31,840 INFO L130 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2021-12-06 21:37:31,844 INFO L84 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 273 events. 29/273 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 583 event pairs, 0 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 155. Up to 4 conditions per place. [2021-12-06 21:37:31,845 INFO L82 GeneralOperation]: Start removeDead. Operand has 232 places, 256 transitions, 520 flow [2021-12-06 21:37:31,850 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 251 transitions, 507 flow [2021-12-06 21:37:31,876 INFO L129 PetriNetUnfolder]: 10/177 cut-off events. [2021-12-06 21:37:31,876 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 21:37:31,876 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 21:37:31,877 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:37:31,877 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:37:31,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:37:31,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1684978418, now seen corresponding path program 1 times [2021-12-06 21:37:31,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:37:31,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964269057] [2021-12-06 21:37:31,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:37:31,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:37:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:37:32,039 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 21:37:32,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:37:32,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964269057] [2021-12-06 21:37:32,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964269057] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:37:32,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:37:32,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 21:37:32,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049858542] [2021-12-06 21:37:32,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:37:32,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 21:37:32,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:37:32,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 21:37:32,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 21:37:32,071 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 256 [2021-12-06 21:37:32,074 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 251 transitions, 507 flow. Second operand has 2 states, 2 states have (on average 234.0) internal successors, (468), 2 states have internal predecessors, (468), 0 states have call successors, (0), 0 states 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 21:37:32,074 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 21:37:32,074 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 256 [2021-12-06 21:37:32,075 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 21:37:32,109 INFO L129 PetriNetUnfolder]: 6/245 cut-off events. [2021-12-06 21:37:32,109 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 21:37:32,110 INFO L84 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 245 events. 6/245 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 432 event pairs, 0 based on Foata normal form. 22/253 useless extension candidates. Maximal degree in co-relation 149. Up to 2 conditions per place. [2021-12-06 21:37:32,111 INFO L132 encePairwiseOnDemand]: 236/256 looper letters, 1 selfloop transitions, 0 changer transitions 2/230 dead transitions. [2021-12-06 21:37:32,111 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 230 transitions, 467 flow [2021-12-06 21:37:32,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 21:37:32,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-12-06 21:37:32,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 487 transitions. [2021-12-06 21:37:32,123 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.951171875 [2021-12-06 21:37:32,124 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 487 transitions. [2021-12-06 21:37:32,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 487 transitions. [2021-12-06 21:37:32,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:37:32,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 487 transitions. [2021-12-06 21:37:32,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 243.5) internal successors, (487), 2 states have internal predecessors, (487), 0 states have call successors, (0), 0 states 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 21:37:32,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 0 states have call successors, (0), 0 states 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 21:37:32,137 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 0 states have call successors, (0), 0 states 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 21:37:32,139 INFO L186 Difference]: Start difference. First operand has 228 places, 251 transitions, 507 flow. Second operand 2 states and 487 transitions. [2021-12-06 21:37:32,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 230 transitions, 467 flow [2021-12-06 21:37:32,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 230 transitions, 467 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 21:37:32,147 INFO L242 Difference]: Finished difference. Result has 228 places, 228 transitions, 461 flow [2021-12-06 21:37:32,149 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=461, PETRI_PLACES=228, PETRI_TRANSITIONS=228} [2021-12-06 21:37:32,152 INFO L334 CegarLoopForPetriNet]: 228 programPoint places, 0 predicate places. [2021-12-06 21:37:32,152 INFO L470 AbstractCegarLoop]: Abstraction has has 228 places, 228 transitions, 461 flow [2021-12-06 21:37:32,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 234.0) internal successors, (468), 2 states have internal predecessors, (468), 0 states have call successors, (0), 0 states 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 21:37:32,153 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 21:37:32,153 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:37:32,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 21:37:32,153 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:37:32,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:37:32,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1809051665, now seen corresponding path program 1 times [2021-12-06 21:37:32,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:37:32,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702991163] [2021-12-06 21:37:32,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:37:32,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:37:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:37:32,229 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 21:37:32,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:37:32,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702991163] [2021-12-06 21:37:32,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702991163] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:37:32,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:37:32,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:37:32,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117126462] [2021-12-06 21:37:32,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:37:32,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:37:32,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:37:32,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:37:32,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:37:32,233 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 256 [2021-12-06 21:37:32,234 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 228 transitions, 461 flow. Second operand has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states 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 21:37:32,234 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 21:37:32,234 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 256 [2021-12-06 21:37:32,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 21:37:32,288 INFO L129 PetriNetUnfolder]: 7/293 cut-off events. [2021-12-06 21:37:32,293 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 21:37:32,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 293 events. 7/293 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 607 event pairs, 0 based on Foata normal form. 0/280 useless extension candidates. Maximal degree in co-relation 314. Up to 12 conditions per place. [2021-12-06 21:37:32,294 INFO L132 encePairwiseOnDemand]: 253/256 looper letters, 16 selfloop transitions, 2 changer transitions 0/235 dead transitions. [2021-12-06 21:37:32,294 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 235 transitions, 511 flow [2021-12-06 21:37:32,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:37:32,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 21:37:32,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 688 transitions. [2021-12-06 21:37:32,298 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8958333333333334 [2021-12-06 21:37:32,298 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 688 transitions. [2021-12-06 21:37:32,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 688 transitions. [2021-12-06 21:37:32,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:37:32,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 688 transitions. [2021-12-06 21:37:32,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 states 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 21:37:32,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states 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 21:37:32,305 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states 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 21:37:32,305 INFO L186 Difference]: Start difference. First operand has 228 places, 228 transitions, 461 flow. Second operand 3 states and 688 transitions. [2021-12-06 21:37:32,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 235 transitions, 511 flow [2021-12-06 21:37:32,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 235 transitions, 511 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 21:37:32,310 INFO L242 Difference]: Finished difference. Result has 229 places, 229 transitions, 473 flow [2021-12-06 21:37:32,311 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=473, PETRI_PLACES=229, PETRI_TRANSITIONS=229} [2021-12-06 21:37:32,311 INFO L334 CegarLoopForPetriNet]: 228 programPoint places, 1 predicate places. [2021-12-06 21:37:32,311 INFO L470 AbstractCegarLoop]: Abstraction has has 229 places, 229 transitions, 473 flow [2021-12-06 21:37:32,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states 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 21:37:32,312 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 21:37:32,312 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, 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 21:37:32,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 21:37:32,313 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:37:32,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:37:32,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1280121739, now seen corresponding path program 1 times [2021-12-06 21:37:32,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:37:32,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581978349] [2021-12-06 21:37:32,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:37:32,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:37:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:37:32,377 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 21:37:32,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:37:32,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581978349] [2021-12-06 21:37:32,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581978349] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:37:32,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:37:32,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:37:32,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588629858] [2021-12-06 21:37:32,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:37:32,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:37:32,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:37:32,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:37:32,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:37:32,381 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 256 [2021-12-06 21:37:32,382 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 229 transitions, 473 flow. Second operand has 3 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states 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 21:37:32,382 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 21:37:32,383 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 256 [2021-12-06 21:37:32,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 21:37:32,447 INFO L129 PetriNetUnfolder]: 7/365 cut-off events. [2021-12-06 21:37:32,447 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-06 21:37:32,448 INFO L84 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 365 events. 7/365 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 712 event pairs, 0 based on Foata normal form. 0/353 useless extension candidates. Maximal degree in co-relation 395. Up to 15 conditions per place. [2021-12-06 21:37:32,449 INFO L132 encePairwiseOnDemand]: 253/256 looper letters, 10 selfloop transitions, 2 changer transitions 0/233 dead transitions. [2021-12-06 21:37:32,449 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 233 transitions, 505 flow [2021-12-06 21:37:32,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:37:32,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 21:37:32,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 691 transitions. [2021-12-06 21:37:32,452 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8997395833333334 [2021-12-06 21:37:32,452 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 691 transitions. [2021-12-06 21:37:32,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 691 transitions. [2021-12-06 21:37:32,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:37:32,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 691 transitions. [2021-12-06 21:37:32,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states 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 21:37:32,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states 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 21:37:32,459 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states 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 21:37:32,459 INFO L186 Difference]: Start difference. First operand has 229 places, 229 transitions, 473 flow. Second operand 3 states and 691 transitions. [2021-12-06 21:37:32,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 233 transitions, 505 flow [2021-12-06 21:37:32,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 233 transitions, 503 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 21:37:32,466 INFO L242 Difference]: Finished difference. Result has 231 places, 230 transitions, 483 flow [2021-12-06 21:37:32,467 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=471, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=483, PETRI_PLACES=231, PETRI_TRANSITIONS=230} [2021-12-06 21:37:32,468 INFO L334 CegarLoopForPetriNet]: 228 programPoint places, 3 predicate places. [2021-12-06 21:37:32,468 INFO L470 AbstractCegarLoop]: Abstraction has has 231 places, 230 transitions, 483 flow [2021-12-06 21:37:32,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states 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 21:37:32,469 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 21:37:32,469 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:37:32,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 21:37:32,469 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:37:32,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:37:32,470 INFO L85 PathProgramCache]: Analyzing trace with hash 2086167297, now seen corresponding path program 1 times [2021-12-06 21:37:32,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:37:32,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707920309] [2021-12-06 21:37:32,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:37:32,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:37:32,509 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 21:37:32,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [868517724] [2021-12-06 21:37:32,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:37:32,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:37:32,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:37:32,510 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 21:37:32,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 21:37:32,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:37:32,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 21:37:32,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:37:32,831 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 21:37:32,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 21:37:32,978 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 21:37:32,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:37:32,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707920309] [2021-12-06 21:37:32,979 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 21:37:32,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868517724] [2021-12-06 21:37:32,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868517724] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 21:37:32,980 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 21:37:32,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-12-06 21:37:32,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037385801] [2021-12-06 21:37:32,980 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 21:37:32,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 21:37:32,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:37:32,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 21:37:32,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-06 21:37:32,986 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 256 [2021-12-06 21:37:32,989 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 230 transitions, 483 flow. Second operand has 8 states, 8 states have (on average 227.0) internal successors, (1816), 8 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states 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 21:37:32,989 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 21:37:32,989 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 256 [2021-12-06 21:37:32,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 21:37:33,091 INFO L129 PetriNetUnfolder]: 7/443 cut-off events. [2021-12-06 21:37:33,091 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-12-06 21:37:33,092 INFO L84 FinitePrefix]: Finished finitePrefix Result has 507 conditions, 443 events. 7/443 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 517 event pairs, 0 based on Foata normal form. 4/437 useless extension candidates. Maximal degree in co-relation 500. Up to 10 conditions per place. [2021-12-06 21:37:33,093 INFO L132 encePairwiseOnDemand]: 250/256 looper letters, 11 selfloop transitions, 9 changer transitions 0/240 dead transitions. [2021-12-06 21:37:33,093 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 240 transitions, 545 flow [2021-12-06 21:37:33,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 21:37:33,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-06 21:37:33,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2047 transitions. [2021-12-06 21:37:33,098 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8884548611111112 [2021-12-06 21:37:33,098 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2047 transitions. [2021-12-06 21:37:33,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2047 transitions. [2021-12-06 21:37:33,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:37:33,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2047 transitions. [2021-12-06 21:37:33,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 227.44444444444446) internal successors, (2047), 9 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states 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 21:37:33,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 256.0) internal successors, (2560), 10 states have internal predecessors, (2560), 0 states have call successors, (0), 0 states 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 21:37:33,111 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 256.0) internal successors, (2560), 10 states have internal predecessors, (2560), 0 states have call successors, (0), 0 states 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 21:37:33,111 INFO L186 Difference]: Start difference. First operand has 231 places, 230 transitions, 483 flow. Second operand 9 states and 2047 transitions. [2021-12-06 21:37:33,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 240 transitions, 545 flow [2021-12-06 21:37:33,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 240 transitions, 543 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 21:37:33,115 INFO L242 Difference]: Finished difference. Result has 241 places, 236 transitions, 531 flow [2021-12-06 21:37:33,116 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=531, PETRI_PLACES=241, PETRI_TRANSITIONS=236} [2021-12-06 21:37:33,116 INFO L334 CegarLoopForPetriNet]: 228 programPoint places, 13 predicate places. [2021-12-06 21:37:33,117 INFO L470 AbstractCegarLoop]: Abstraction has has 241 places, 236 transitions, 531 flow [2021-12-06 21:37:33,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 227.0) internal successors, (1816), 8 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states 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 21:37:33,118 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 21:37:33,118 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:37:33,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 21:37:33,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:37:33,320 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:37:33,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:37:33,322 INFO L85 PathProgramCache]: Analyzing trace with hash -216012479, now seen corresponding path program 2 times [2021-12-06 21:37:33,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:37:33,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638698241] [2021-12-06 21:37:33,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:37:33,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:37:33,436 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 21:37:33,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [981228214] [2021-12-06 21:37:33,437 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 21:37:33,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:37:33,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:37:33,440 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 21:37:33,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 21:37:33,607 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 21:37:33,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 21:37:33,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 21:37:33,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:37:33,815 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 1 proven. 114 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 21:37:33,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 21:37:34,035 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 1 proven. 114 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 21:37:34,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:37:34,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638698241] [2021-12-06 21:37:34,036 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 21:37:34,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981228214] [2021-12-06 21:37:34,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981228214] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 21:37:34,036 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 21:37:34,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-12-06 21:37:34,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427571040] [2021-12-06 21:37:34,037 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 21:37:34,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-06 21:37:34,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:37:34,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-06 21:37:34,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2021-12-06 21:37:34,043 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 256 [2021-12-06 21:37:34,048 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 236 transitions, 531 flow. Second operand has 16 states, 16 states have (on average 227.25) internal successors, (3636), 16 states have internal predecessors, (3636), 0 states have call successors, (0), 0 states 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 21:37:34,048 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 21:37:34,049 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 256 [2021-12-06 21:37:34,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 21:37:34,250 INFO L129 PetriNetUnfolder]: 7/739 cut-off events. [2021-12-06 21:37:34,250 INFO L130 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2021-12-06 21:37:34,251 INFO L84 FinitePrefix]: Finished finitePrefix Result has 939 conditions, 739 events. 7/739 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 517 event pairs, 0 based on Foata normal form. 8/737 useless extension candidates. Maximal degree in co-relation 930. Up to 22 conditions per place. [2021-12-06 21:37:34,253 INFO L132 encePairwiseOnDemand]: 250/256 looper letters, 19 selfloop transitions, 21 changer transitions 0/260 dead transitions. [2021-12-06 21:37:34,254 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 260 transitions, 719 flow [2021-12-06 21:37:34,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-06 21:37:34,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-12-06 21:37:34,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4769 transitions. [2021-12-06 21:37:34,267 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8870907738095238 [2021-12-06 21:37:34,268 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4769 transitions. [2021-12-06 21:37:34,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4769 transitions. [2021-12-06 21:37:34,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:37:34,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4769 transitions. [2021-12-06 21:37:34,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 227.0952380952381) internal successors, (4769), 21 states have internal predecessors, (4769), 0 states have call successors, (0), 0 states 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 21:37:34,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 256.0) internal successors, (5632), 22 states have internal predecessors, (5632), 0 states have call successors, (0), 0 states 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 21:37:34,302 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 256.0) internal successors, (5632), 22 states have internal predecessors, (5632), 0 states have call successors, (0), 0 states 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 21:37:34,302 INFO L186 Difference]: Start difference. First operand has 241 places, 236 transitions, 531 flow. Second operand 21 states and 4769 transitions. [2021-12-06 21:37:34,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 260 transitions, 719 flow [2021-12-06 21:37:34,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 260 transitions, 705 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-12-06 21:37:34,312 INFO L242 Difference]: Finished difference. Result has 265 places, 249 transitions, 655 flow [2021-12-06 21:37:34,313 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=525, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=655, PETRI_PLACES=265, PETRI_TRANSITIONS=249} [2021-12-06 21:37:34,314 INFO L334 CegarLoopForPetriNet]: 228 programPoint places, 37 predicate places. [2021-12-06 21:37:34,314 INFO L470 AbstractCegarLoop]: Abstraction has has 265 places, 249 transitions, 655 flow [2021-12-06 21:37:34,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 227.25) internal successors, (3636), 16 states have internal predecessors, (3636), 0 states have call successors, (0), 0 states 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 21:37:34,316 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 21:37:34,316 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:37:34,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 21:37:34,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:37:34,518 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:37:34,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:37:34,520 INFO L85 PathProgramCache]: Analyzing trace with hash -361462335, now seen corresponding path program 3 times [2021-12-06 21:37:34,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:37:34,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492141149] [2021-12-06 21:37:34,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:37:34,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:37:34,692 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 21:37:34,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [644282342] [2021-12-06 21:37:34,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 21:37:34,693 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:37:34,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:37:34,695 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 21:37:34,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 21:37:34,844 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-06 21:37:34,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 21:37:34,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 21:37:34,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:37:35,191 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2021-12-06 21:37:35,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 21:37:35,516 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2021-12-06 21:37:35,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:37:35,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492141149] [2021-12-06 21:37:35,516 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 21:37:35,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644282342] [2021-12-06 21:37:35,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644282342] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 21:37:35,517 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 21:37:35,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-12-06 21:37:35,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325100336] [2021-12-06 21:37:35,517 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 21:37:35,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 21:37:35,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:37:35,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 21:37:35,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-06 21:37:35,520 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 256 [2021-12-06 21:37:35,521 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 249 transitions, 655 flow. Second operand has 8 states, 8 states have (on average 224.75) internal successors, (1798), 8 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states 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 21:37:35,521 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 21:37:35,521 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 256 [2021-12-06 21:37:35,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 21:37:35,827 INFO L129 PetriNetUnfolder]: 8/1015 cut-off events. [2021-12-06 21:37:35,827 INFO L130 PetriNetUnfolder]: For 113/113 co-relation queries the response was YES. [2021-12-06 21:37:35,828 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1351 conditions, 1015 events. 8/1015 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 206 event pairs, 0 based on Foata normal form. 2/1007 useless extension candidates. Maximal degree in co-relation 1337. Up to 33 conditions per place. [2021-12-06 21:37:35,830 INFO L132 encePairwiseOnDemand]: 250/256 looper letters, 20 selfloop transitions, 9 changer transitions 0/265 dead transitions. [2021-12-06 21:37:35,830 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 265 transitions, 747 flow [2021-12-06 21:37:35,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 21:37:35,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-06 21:37:35,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2029 transitions. [2021-12-06 21:37:35,835 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8806423611111112 [2021-12-06 21:37:35,835 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2029 transitions. [2021-12-06 21:37:35,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2029 transitions. [2021-12-06 21:37:35,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:37:35,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2029 transitions. [2021-12-06 21:37:35,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 225.44444444444446) internal successors, (2029), 9 states have internal predecessors, (2029), 0 states have call successors, (0), 0 states 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 21:37:35,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 256.0) internal successors, (2560), 10 states have internal predecessors, (2560), 0 states have call successors, (0), 0 states 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 21:37:35,844 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 256.0) internal successors, (2560), 10 states have internal predecessors, (2560), 0 states have call successors, (0), 0 states 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 21:37:35,844 INFO L186 Difference]: Start difference. First operand has 265 places, 249 transitions, 655 flow. Second operand 9 states and 2029 transitions. [2021-12-06 21:37:35,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 265 transitions, 747 flow [2021-12-06 21:37:35,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 265 transitions, 723 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-12-06 21:37:35,851 INFO L242 Difference]: Finished difference. Result has 270 places, 255 transitions, 681 flow [2021-12-06 21:37:35,852 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=681, PETRI_PLACES=270, PETRI_TRANSITIONS=255} [2021-12-06 21:37:35,852 INFO L334 CegarLoopForPetriNet]: 228 programPoint places, 42 predicate places. [2021-12-06 21:37:35,852 INFO L470 AbstractCegarLoop]: Abstraction has has 270 places, 255 transitions, 681 flow [2021-12-06 21:37:35,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 224.75) internal successors, (1798), 8 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states 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 21:37:35,853 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 21:37:35,854 INFO L254 CegarLoopForPetriNet]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:37:35,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 21:37:36,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-06 21:37:36,055 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:37:36,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:37:36,055 INFO L85 PathProgramCache]: Analyzing trace with hash -165335103, now seen corresponding path program 4 times [2021-12-06 21:37:36,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:37:36,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025877297] [2021-12-06 21:37:36,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:37:36,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:37:36,198 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 21:37:36,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [293583893] [2021-12-06 21:37:36,199 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-06 21:37:36,199 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:37:36,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:37:36,200 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 21:37:36,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 21:37:36,694 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-06 21:37:36,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 21:37:36,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 3419 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 21:37:36,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:37:37,597 INFO L134 CoverageAnalysis]: Checked inductivity of 7883 backedges. 0 proven. 5526 refuted. 0 times theorem prover too weak. 2357 trivial. 0 not checked. [2021-12-06 21:37:37,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 21:37:38,404 INFO L134 CoverageAnalysis]: Checked inductivity of 7883 backedges. 0 proven. 5526 refuted. 0 times theorem prover too weak. 2357 trivial. 0 not checked. [2021-12-06 21:37:38,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:37:38,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025877297] [2021-12-06 21:37:38,404 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 21:37:38,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293583893] [2021-12-06 21:37:38,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293583893] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 21:37:38,405 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 21:37:38,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-12-06 21:37:38,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611637718] [2021-12-06 21:37:38,405 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 21:37:38,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-06 21:37:38,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:37:38,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-06 21:37:38,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2021-12-06 21:37:38,409 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 256 [2021-12-06 21:37:38,412 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 255 transitions, 681 flow. Second operand has 16 states, 16 states have (on average 225.375) internal successors, (3606), 16 states have internal predecessors, (3606), 0 states have call successors, (0), 0 states 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 21:37:38,412 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 21:37:38,412 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 256 [2021-12-06 21:37:38,412 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 21:37:39,176 INFO L129 PetriNetUnfolder]: 12/2111 cut-off events. [2021-12-06 21:37:39,177 INFO L130 PetriNetUnfolder]: For 346/346 co-relation queries the response was YES. [2021-12-06 21:37:39,178 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2826 conditions, 2111 events. 12/2111 cut-off events. For 346/346 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 210 event pairs, 0 based on Foata normal form. 4/2105 useless extension candidates. Maximal degree in co-relation 2809. Up to 70 conditions per place. [2021-12-06 21:37:39,182 INFO L132 encePairwiseOnDemand]: 250/256 looper letters, 40 selfloop transitions, 21 changer transitions 0/297 dead transitions. [2021-12-06 21:37:39,182 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 297 transitions, 947 flow [2021-12-06 21:37:39,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-06 21:37:39,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-12-06 21:37:39,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4727 transitions. [2021-12-06 21:37:39,192 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8792782738095238 [2021-12-06 21:37:39,192 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4727 transitions. [2021-12-06 21:37:39,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4727 transitions. [2021-12-06 21:37:39,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:37:39,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4727 transitions. [2021-12-06 21:37:39,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 225.0952380952381) internal successors, (4727), 21 states have internal predecessors, (4727), 0 states have call successors, (0), 0 states 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 21:37:39,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 256.0) internal successors, (5632), 22 states have internal predecessors, (5632), 0 states have call successors, (0), 0 states 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 21:37:39,213 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 256.0) internal successors, (5632), 22 states have internal predecessors, (5632), 0 states have call successors, (0), 0 states 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 21:37:39,213 INFO L186 Difference]: Start difference. First operand has 270 places, 255 transitions, 681 flow. Second operand 21 states and 4727 transitions. [2021-12-06 21:37:39,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 297 transitions, 947 flow [2021-12-06 21:37:39,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 297 transitions, 933 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-12-06 21:37:39,220 INFO L242 Difference]: Finished difference. Result has 294 places, 268 transitions, 805 flow [2021-12-06 21:37:39,221 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=675, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=805, PETRI_PLACES=294, PETRI_TRANSITIONS=268} [2021-12-06 21:37:39,222 INFO L334 CegarLoopForPetriNet]: 228 programPoint places, 66 predicate places. [2021-12-06 21:37:39,222 INFO L470 AbstractCegarLoop]: Abstraction has has 294 places, 268 transitions, 805 flow [2021-12-06 21:37:39,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 225.375) internal successors, (3606), 16 states have internal predecessors, (3606), 0 states have call successors, (0), 0 states 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 21:37:39,223 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 21:37:39,224 INFO L254 CegarLoopForPetriNet]: trace histogram [49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:37:39,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 21:37:39,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-06 21:37:39,424 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:37:39,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:37:39,425 INFO L85 PathProgramCache]: Analyzing trace with hash 178717633, now seen corresponding path program 5 times [2021-12-06 21:37:39,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:37:39,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339547858] [2021-12-06 21:37:39,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:37:39,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:37:39,573 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 21:37:39,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [42535752] [2021-12-06 21:37:39,574 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-06 21:37:39,574 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:37:39,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:37:39,575 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 21:37:39,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1e6f26b-5850-4033-86f1-de205fe80dca/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process