./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix004.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c93dc96-da62-43cf-98d7-547b74d06051/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c93dc96-da62-43cf-98d7-547b74d06051/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c93dc96-da62-43cf-98d7-547b74d06051/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c93dc96-da62-43cf-98d7-547b74d06051/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix004.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c93dc96-da62-43cf-98d7-547b74d06051/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c93dc96-da62-43cf-98d7-547b74d06051/bin/utaipan-TEXQjIfE4P --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 89021de777f0aa5756284679b7b3bd19ab661d8d626f08ad7f7db0bc955b507d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:16:30,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:16:30,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:16:30,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:16:30,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:16:30,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:16:30,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:16:30,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:16:30,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:16:30,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:16:30,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:16:30,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:16:30,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:16:30,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:16:30,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:16:30,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:16:30,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:16:30,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:16:30,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:16:30,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:16:30,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:16:30,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:16:30,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:16:30,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:16:30,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:16:30,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:16:30,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:16:30,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:16:30,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:16:30,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:16:30,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:16:30,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:16:30,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:16:30,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:16:30,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:16:30,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:16:30,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:16:30,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:16:30,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:16:30,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:16:30,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:16:30,878 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c93dc96-da62-43cf-98d7-547b74d06051/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-20 23:16:30,931 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:16:30,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:16:30,938 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:16:30,938 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:16:30,939 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:16:30,939 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:16:30,940 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:16:30,940 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:16:30,940 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:16:30,940 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:16:30,941 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:16:30,942 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:16:30,942 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:16:30,942 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:16:30,942 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:16:30,942 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:16:30,943 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:16:30,943 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:16:30,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:16:30,944 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:16:30,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:16:30,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:16:30,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:16:30,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:16:30,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:16:30,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:16:30,947 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:16:30,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:16:30,947 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:16:30,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:16:30,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:16:30,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:16:30,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:16:30,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:16:30,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:16:30,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:16:30,949 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:16:30,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:16:30,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:16:30,949 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:16:30,950 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:16:30,950 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_0c93dc96-da62-43cf-98d7-547b74d06051/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c93dc96-da62-43cf-98d7-547b74d06051/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89021de777f0aa5756284679b7b3bd19ab661d8d626f08ad7f7db0bc955b507d [2021-11-20 23:16:31,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:16:31,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:16:31,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:16:31,288 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:16:31,289 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:16:31,290 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c93dc96-da62-43cf-98d7-547b74d06051/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/pthread-wmm/mix004.opt.i [2021-11-20 23:16:31,369 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c93dc96-da62-43cf-98d7-547b74d06051/bin/utaipan-TEXQjIfE4P/data/4b3f66f47/b44e73f74ef142918fe3fbe6ae4af8a2/FLAG0cda4439b [2021-11-20 23:16:31,924 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:16:31,925 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c93dc96-da62-43cf-98d7-547b74d06051/sv-benchmarks/c/pthread-wmm/mix004.opt.i [2021-11-20 23:16:31,939 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c93dc96-da62-43cf-98d7-547b74d06051/bin/utaipan-TEXQjIfE4P/data/4b3f66f47/b44e73f74ef142918fe3fbe6ae4af8a2/FLAG0cda4439b [2021-11-20 23:16:32,188 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c93dc96-da62-43cf-98d7-547b74d06051/bin/utaipan-TEXQjIfE4P/data/4b3f66f47/b44e73f74ef142918fe3fbe6ae4af8a2 [2021-11-20 23:16:32,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:16:32,192 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:16:32,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:16:32,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:16:32,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:16:32,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:16:32" (1/1) ... [2021-11-20 23:16:32,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ec51553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:32, skipping insertion in model container [2021-11-20 23:16:32,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:16:32" (1/1) ... [2021-11-20 23:16:32,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:16:32,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:16:32,494 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_0c93dc96-da62-43cf-98d7-547b74d06051/sv-benchmarks/c/pthread-wmm/mix004.opt.i[944,957] [2021-11-20 23:16:32,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:16:32,858 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:16:32,876 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_0c93dc96-da62-43cf-98d7-547b74d06051/sv-benchmarks/c/pthread-wmm/mix004.opt.i[944,957] [2021-11-20 23:16:32,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:16:33,040 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:16:33,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:33 WrapperNode [2021-11-20 23:16:33,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:16:33,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:16:33,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:16:33,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:16:33,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:33" (1/1) ... [2021-11-20 23:16:33,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:33" (1/1) ... [2021-11-20 23:16:33,145 INFO L137 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 297 [2021-11-20 23:16:33,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:16:33,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:16:33,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:16:33,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:16:33,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:33" (1/1) ... [2021-11-20 23:16:33,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:33" (1/1) ... [2021-11-20 23:16:33,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:33" (1/1) ... [2021-11-20 23:16:33,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:33" (1/1) ... [2021-11-20 23:16:33,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:33" (1/1) ... [2021-11-20 23:16:33,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:33" (1/1) ... [2021-11-20 23:16:33,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:33" (1/1) ... [2021-11-20 23:16:33,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:16:33,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:16:33,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:16:33,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:16:33,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:33" (1/1) ... [2021-11-20 23:16:33,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:16:33,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c93dc96-da62-43cf-98d7-547b74d06051/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:16:33,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c93dc96-da62-43cf-98d7-547b74d06051/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:16:33,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c93dc96-da62-43cf-98d7-547b74d06051/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:16:33,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:16:33,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-20 23:16:33,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:16:33,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:16:33,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:16:33,321 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-20 23:16:33,321 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-20 23:16:33,321 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-20 23:16:33,321 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-20 23:16:33,321 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-20 23:16:33,321 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-20 23:16:33,322 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-11-20 23:16:33,322 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-11-20 23:16:33,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:16:33,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-20 23:16:33,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:16:33,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:16:33,324 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-20 23:16:33,500 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:16:33,501 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:16:34,095 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:16:34,627 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:16:34,627 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 23:16:34,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:16:34 BoogieIcfgContainer [2021-11-20 23:16:34,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:16:34,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:16:34,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:16:34,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:16:34,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:16:32" (1/3) ... [2021-11-20 23:16:34,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5ad809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:16:34, skipping insertion in model container [2021-11-20 23:16:34,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:33" (2/3) ... [2021-11-20 23:16:34,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5ad809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:16:34, skipping insertion in model container [2021-11-20 23:16:34,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:16:34" (3/3) ... [2021-11-20 23:16:34,641 INFO L111 eAbstractionObserver]: Analyzing ICFG mix004.opt.i [2021-11-20 23:16:34,647 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-20 23:16:34,648 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:16:34,648 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-20 23:16:34,648 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-20 23:16:34,709 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,709 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,710 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,710 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,710 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,710 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,711 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,711 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,711 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,712 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,712 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,712 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,713 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,713 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,713 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,713 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,714 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,714 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,714 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,714 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,714 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,714 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,715 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,715 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,715 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,715 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,715 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,716 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,716 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,716 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,716 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,716 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,716 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,717 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,717 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,717 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,717 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,718 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,718 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,718 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,718 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,718 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,718 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,718 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,719 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,719 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,719 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,719 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,719 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,719 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,719 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,720 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,720 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,720 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,720 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,720 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,720 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,720 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,721 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,721 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,721 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,721 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,722 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,722 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,722 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,722 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,722 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,722 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,722 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,723 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,728 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,730 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,730 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,731 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,731 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,732 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,733 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,733 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,733 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,733 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,738 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,738 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,739 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,739 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,739 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,739 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,739 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,739 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,739 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,739 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,740 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,740 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,740 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,740 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,740 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,740 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,740 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,741 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,741 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,741 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,741 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,741 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,741 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,741 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,742 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,742 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,742 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,742 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,745 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,745 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,746 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,746 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,746 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,747 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,747 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,747 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,747 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,747 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,747 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,747 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,748 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,748 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,748 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,748 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,748 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,748 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,749 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,749 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,749 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~nondet27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,749 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,749 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,750 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,750 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,750 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,750 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,750 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,750 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,750 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,750 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,751 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~nondet26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,751 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,751 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,751 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,751 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,753 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,753 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~nondet27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,753 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,753 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,753 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,753 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,754 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,754 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~nondet26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,754 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,754 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,754 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,768 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,768 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,768 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,768 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite48#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,768 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,768 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,769 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,769 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,769 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,769 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,769 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,771 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~nondet27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,771 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,771 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,772 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,772 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,772 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,772 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,772 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,772 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,772 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,773 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,773 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~nondet26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,773 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,773 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,773 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,773 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,773 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,773 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~nondet27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,774 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,774 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,774 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,774 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,774 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,774 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~nondet26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,774 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,774 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,775 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,775 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,775 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,775 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,775 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite48#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,776 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,780 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,780 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,780 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,780 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,780 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,781 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,782 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,783 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite50#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,783 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite52#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,784 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite51#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,784 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite53#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,784 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite54#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,784 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,785 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,785 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite50#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,785 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite52#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,785 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite51#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,785 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite53#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,785 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite54#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,786 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,787 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,787 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,787 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,787 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,794 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,794 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,794 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,794 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,794 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,795 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,795 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,795 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,795 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,795 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,795 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,796 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,796 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,803 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,803 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,804 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,804 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,804 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,804 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,804 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,804 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,805 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,805 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,805 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,805 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,805 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,805 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,806 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,807 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,807 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,807 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,808 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,808 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,808 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,808 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,809 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite54#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,809 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,809 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,809 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,809 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,809 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,809 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~nondet27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,810 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,810 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,810 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,810 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite52#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,810 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,810 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~nondet26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,810 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,811 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,811 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,811 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite51#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,811 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,811 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,811 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,811 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite48#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,812 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,812 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite50#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,812 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,812 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,812 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,812 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,813 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite53#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,813 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,813 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,813 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,814 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,814 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,815 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,815 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:16:34,815 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-20 23:16:34,862 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:16:34,869 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=FINITE_AUTOMATA, 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 [2021-11-20 23:16:34,869 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-20 23:16:34,883 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-20 23:16:34,897 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 138 transitions, 296 flow [2021-11-20 23:16:34,900 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 138 transitions, 296 flow [2021-11-20 23:16:34,901 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 149 places, 138 transitions, 296 flow [2021-11-20 23:16:34,985 INFO L129 PetriNetUnfolder]: 2/134 cut-off events. [2021-11-20 23:16:34,986 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 23:16:34,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 134 events. 2/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 67 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2021-11-20 23:16:34,999 INFO L116 LiptonReduction]: Number of co-enabled transitions 3060 [2021-11-20 23:16:42,803 INFO L131 LiptonReduction]: Checked pairs total: 8641 [2021-11-20 23:16:42,803 INFO L133 LiptonReduction]: Total number of compositions: 121 [2021-11-20 23:16:42,812 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 33 transitions, 86 flow [2021-11-20 23:16:42,948 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2602 states, 2599 states have (on average 3.9030396306271644) internal successors, (10144), 2601 states have internal predecessors, (10144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:42,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 2602 states, 2599 states have (on average 3.9030396306271644) internal successors, (10144), 2601 states have internal predecessors, (10144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:42,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-20 23:16:42,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:16:42,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:16:42,969 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:16:42,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:16:42,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1581418680, now seen corresponding path program 1 times [2021-11-20 23:16:42,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:16:42,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818557064] [2021-11-20 23:16:42,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:16:42,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:16:43,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:16:43,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:16:43,296 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:16:43,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818557064] [2021-11-20 23:16:43,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818557064] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:16:43,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:16:43,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-20 23:16:43,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841063748] [2021-11-20 23:16:43,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:16:43,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:16:43,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:16:43,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:16:43,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:16:43,337 INFO L87 Difference]: Start difference. First operand has 2602 states, 2599 states have (on average 3.9030396306271644) internal successors, (10144), 2601 states have internal predecessors, (10144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:43,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:16:43,547 INFO L93 Difference]: Finished difference Result 2202 states and 8344 transitions. [2021-11-20 23:16:43,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:16:43,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-20 23:16:43,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:16:43,605 INFO L225 Difference]: With dead ends: 2202 [2021-11-20 23:16:43,605 INFO L226 Difference]: Without dead ends: 2122 [2021-11-20 23:16:43,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:16:43,610 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:16:43,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 8 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:16:43,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2122 states. [2021-11-20 23:16:43,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2122 to 2122. [2021-11-20 23:16:43,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2122 states, 2121 states have (on average 3.8095238095238093) internal successors, (8080), 2121 states have internal predecessors, (8080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:43,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 8080 transitions. [2021-11-20 23:16:43,794 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 8080 transitions. Word has length 9 [2021-11-20 23:16:43,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:16:43,800 INFO L470 AbstractCegarLoop]: Abstraction has 2122 states and 8080 transitions. [2021-11-20 23:16:43,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:43,800 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 8080 transitions. [2021-11-20 23:16:43,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-20 23:16:43,806 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:16:43,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:16:43,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:16:43,807 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:16:43,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:16:43,810 INFO L85 PathProgramCache]: Analyzing trace with hash 675157082, now seen corresponding path program 1 times [2021-11-20 23:16:43,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:16:43,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093381762] [2021-11-20 23:16:43,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:16:43,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:16:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:16:43,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:16:43,994 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:16:43,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093381762] [2021-11-20 23:16:43,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093381762] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:16:43,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:16:43,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-20 23:16:43,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267698163] [2021-11-20 23:16:43,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:16:43,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:16:43,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:16:43,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:16:43,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:16:43,997 INFO L87 Difference]: Start difference. First operand 2122 states and 8080 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:44,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:16:44,093 INFO L93 Difference]: Finished difference Result 2106 states and 8000 transitions. [2021-11-20 23:16:44,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:16:44,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-20 23:16:44,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:16:44,117 INFO L225 Difference]: With dead ends: 2106 [2021-11-20 23:16:44,117 INFO L226 Difference]: Without dead ends: 2106 [2021-11-20 23:16:44,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:16:44,120 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:16:44,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:16:44,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2106 states. [2021-11-20 23:16:44,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2106 to 2106. [2021-11-20 23:16:44,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2106 states, 2105 states have (on average 3.8004750593824226) internal successors, (8000), 2105 states have internal predecessors, (8000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:44,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2106 states to 2106 states and 8000 transitions. [2021-11-20 23:16:44,328 INFO L78 Accepts]: Start accepts. Automaton has 2106 states and 8000 transitions. Word has length 11 [2021-11-20 23:16:44,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:16:44,328 INFO L470 AbstractCegarLoop]: Abstraction has 2106 states and 8000 transitions. [2021-11-20 23:16:44,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:44,329 INFO L276 IsEmpty]: Start isEmpty. Operand 2106 states and 8000 transitions. [2021-11-20 23:16:44,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-20 23:16:44,331 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:16:44,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:16:44,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:16:44,332 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:16:44,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:16:44,333 INFO L85 PathProgramCache]: Analyzing trace with hash -431679193, now seen corresponding path program 1 times [2021-11-20 23:16:44,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:16:44,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679585292] [2021-11-20 23:16:44,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:16:44,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:16:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:16:44,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:16:44,436 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:16:44,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679585292] [2021-11-20 23:16:44,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679585292] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:16:44,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:16:44,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:16:44,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524391874] [2021-11-20 23:16:44,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:16:44,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:16:44,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:16:44,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:16:44,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:16:44,439 INFO L87 Difference]: Start difference. First operand 2106 states and 8000 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:44,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:16:44,561 INFO L93 Difference]: Finished difference Result 1962 states and 7392 transitions. [2021-11-20 23:16:44,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:16:44,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-20 23:16:44,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:16:44,582 INFO L225 Difference]: With dead ends: 1962 [2021-11-20 23:16:44,583 INFO L226 Difference]: Without dead ends: 1962 [2021-11-20 23:16:44,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:16:44,589 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 29 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:16:44,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 4 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:16:44,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-11-20 23:16:44,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2021-11-20 23:16:44,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 3.769505354411015) internal successors, (7392), 1961 states have internal predecessors, (7392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:44,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 7392 transitions. [2021-11-20 23:16:44,700 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 7392 transitions. Word has length 13 [2021-11-20 23:16:44,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:16:44,701 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 7392 transitions. [2021-11-20 23:16:44,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:44,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 7392 transitions. [2021-11-20 23:16:44,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-20 23:16:44,704 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:16:44,704 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:16:44,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 23:16:44,704 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:16:44,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:16:44,705 INFO L85 PathProgramCache]: Analyzing trace with hash 285875228, now seen corresponding path program 1 times [2021-11-20 23:16:44,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:16:44,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637760020] [2021-11-20 23:16:44,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:16:44,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:16:44,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:16:44,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:16:44,877 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:16:44,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637760020] [2021-11-20 23:16:44,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637760020] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:16:44,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:16:44,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-20 23:16:44,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348475531] [2021-11-20 23:16:44,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:16:44,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:16:44,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:16:44,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:16:44,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:16:44,884 INFO L87 Difference]: Start difference. First operand 1962 states and 7392 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:44,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:16:44,976 INFO L93 Difference]: Finished difference Result 1834 states and 6848 transitions. [2021-11-20 23:16:44,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:16:44,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-20 23:16:44,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:16:44,998 INFO L225 Difference]: With dead ends: 1834 [2021-11-20 23:16:44,999 INFO L226 Difference]: Without dead ends: 1834 [2021-11-20 23:16:45,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:16:45,005 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 10 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:16:45,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 7 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:16:45,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2021-11-20 23:16:45,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1834. [2021-11-20 23:16:45,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 1833 states have (on average 3.7359519912711403) internal successors, (6848), 1833 states have internal predecessors, (6848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:45,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 6848 transitions. [2021-11-20 23:16:45,110 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 6848 transitions. Word has length 13 [2021-11-20 23:16:45,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:16:45,110 INFO L470 AbstractCegarLoop]: Abstraction has 1834 states and 6848 transitions. [2021-11-20 23:16:45,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:45,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 6848 transitions. [2021-11-20 23:16:45,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-20 23:16:45,115 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:16:45,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:16:45,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:16:45,115 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:16:45,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:16:45,119 INFO L85 PathProgramCache]: Analyzing trace with hash 274430095, now seen corresponding path program 1 times [2021-11-20 23:16:45,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:16:45,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631451195] [2021-11-20 23:16:45,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:16:45,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:16:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:16:45,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:16:45,313 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:16:45,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631451195] [2021-11-20 23:16:45,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631451195] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:16:45,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:16:45,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:16:45,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247614371] [2021-11-20 23:16:45,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:16:45,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:16:45,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:16:45,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:16:45,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:16:45,319 INFO L87 Difference]: Start difference. First operand 1834 states and 6848 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:45,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:16:45,464 INFO L93 Difference]: Finished difference Result 1900 states and 6462 transitions. [2021-11-20 23:16:45,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:16:45,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-20 23:16:45,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:16:45,479 INFO L225 Difference]: With dead ends: 1900 [2021-11-20 23:16:45,479 INFO L226 Difference]: Without dead ends: 1420 [2021-11-20 23:16:45,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:16:45,480 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 48 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:16:45,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 12 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:16:45,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2021-11-20 23:16:45,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1420. [2021-11-20 23:16:45,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1419 states have (on average 3.3671599718111347) internal successors, (4778), 1419 states have internal predecessors, (4778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:45,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 4778 transitions. [2021-11-20 23:16:45,571 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 4778 transitions. Word has length 15 [2021-11-20 23:16:45,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:16:45,571 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 4778 transitions. [2021-11-20 23:16:45,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:45,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 4778 transitions. [2021-11-20 23:16:45,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-20 23:16:45,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:16:45,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:16:45,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 23:16:45,575 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:16:45,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:16:45,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1240957985, now seen corresponding path program 1 times [2021-11-20 23:16:45,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:16:45,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159326927] [2021-11-20 23:16:45,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:16:45,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:16:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:16:45,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:16:45,710 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:16:45,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159326927] [2021-11-20 23:16:45,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159326927] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:16:45,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:16:45,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:16:45,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200870760] [2021-11-20 23:16:45,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:16:45,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:16:45,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:16:45,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:16:45,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:16:45,712 INFO L87 Difference]: Start difference. First operand 1420 states and 4778 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:45,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:16:45,888 INFO L93 Difference]: Finished difference Result 1237 states and 3831 transitions. [2021-11-20 23:16:45,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:16:45,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-20 23:16:45,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:16:45,897 INFO L225 Difference]: With dead ends: 1237 [2021-11-20 23:16:45,897 INFO L226 Difference]: Without dead ends: 937 [2021-11-20 23:16:45,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:16:45,900 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 89 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:16:45,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 16 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:16:45,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2021-11-20 23:16:45,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 937. [2021-11-20 23:16:45,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 936 states have (on average 3.0405982905982905) internal successors, (2846), 936 states have internal predecessors, (2846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:45,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 2846 transitions. [2021-11-20 23:16:45,937 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 2846 transitions. Word has length 17 [2021-11-20 23:16:45,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:16:45,938 INFO L470 AbstractCegarLoop]: Abstraction has 937 states and 2846 transitions. [2021-11-20 23:16:45,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:45,938 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 2846 transitions. [2021-11-20 23:16:45,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-20 23:16:45,941 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:16:45,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:16:45,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 23:16:45,942 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:16:45,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:16:45,943 INFO L85 PathProgramCache]: Analyzing trace with hash -122274556, now seen corresponding path program 1 times [2021-11-20 23:16:45,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:16:45,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120462895] [2021-11-20 23:16:45,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:16:45,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:16:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:16:46,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:16:46,133 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:16:46,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120462895] [2021-11-20 23:16:46,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120462895] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:16:46,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:16:46,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:16:46,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375798577] [2021-11-20 23:16:46,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:16:46,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:16:46,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:16:46,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:16:46,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:16:46,135 INFO L87 Difference]: Start difference. First operand 937 states and 2846 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:46,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:16:46,360 INFO L93 Difference]: Finished difference Result 825 states and 2477 transitions. [2021-11-20 23:16:46,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:16:46,360 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-20 23:16:46,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:16:46,366 INFO L225 Difference]: With dead ends: 825 [2021-11-20 23:16:46,367 INFO L226 Difference]: Without dead ends: 726 [2021-11-20 23:16:46,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-20 23:16:46,368 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 143 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:16:46,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 20 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 23:16:46,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2021-11-20 23:16:46,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 726. [2021-11-20 23:16:46,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 725 states have (on average 3.0524137931034483) internal successors, (2213), 725 states have internal predecessors, (2213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:46,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 2213 transitions. [2021-11-20 23:16:46,395 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 2213 transitions. Word has length 20 [2021-11-20 23:16:46,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:16:46,395 INFO L470 AbstractCegarLoop]: Abstraction has 726 states and 2213 transitions. [2021-11-20 23:16:46,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:46,395 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 2213 transitions. [2021-11-20 23:16:46,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-20 23:16:46,398 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:16:46,398 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:16:46,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 23:16:46,398 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:16:46,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:16:46,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1762763815, now seen corresponding path program 1 times [2021-11-20 23:16:46,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:16:46,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407157660] [2021-11-20 23:16:46,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:16:46,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:16:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:16:46,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:16:46,580 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:16:46,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407157660] [2021-11-20 23:16:46,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407157660] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:16:46,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:16:46,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 23:16:46,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316223492] [2021-11-20 23:16:46,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:16:46,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 23:16:46,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:16:46,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 23:16:46,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:16:46,582 INFO L87 Difference]: Start difference. First operand 726 states and 2213 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:46,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:16:46,762 INFO L93 Difference]: Finished difference Result 701 states and 2161 transitions. [2021-11-20 23:16:46,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 23:16:46,762 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-20 23:16:46,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:16:46,769 INFO L225 Difference]: With dead ends: 701 [2021-11-20 23:16:46,769 INFO L226 Difference]: Without dead ends: 685 [2021-11-20 23:16:46,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2021-11-20 23:16:46,770 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 157 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:16:46,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 16 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:16:46,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2021-11-20 23:16:46,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 685. [2021-11-20 23:16:46,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 684 states have (on average 3.115497076023392) internal successors, (2131), 684 states have internal predecessors, (2131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:46,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 2131 transitions. [2021-11-20 23:16:46,798 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 2131 transitions. Word has length 23 [2021-11-20 23:16:46,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:16:46,798 INFO L470 AbstractCegarLoop]: Abstraction has 685 states and 2131 transitions. [2021-11-20 23:16:46,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:46,798 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 2131 transitions. [2021-11-20 23:16:46,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-20 23:16:46,801 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:16:46,801 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:16:46,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 23:16:46,801 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:16:46,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:16:46,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1237084446, now seen corresponding path program 1 times [2021-11-20 23:16:46,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:16:46,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236032142] [2021-11-20 23:16:46,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:16:46,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:16:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:16:46,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:16:46,931 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:16:46,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236032142] [2021-11-20 23:16:46,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236032142] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:16:46,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:16:46,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:16:46,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090789511] [2021-11-20 23:16:46,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:16:46,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:16:46,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:16:46,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:16:46,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:16:46,933 INFO L87 Difference]: Start difference. First operand 685 states and 2131 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:47,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:16:47,078 INFO L93 Difference]: Finished difference Result 867 states and 2652 transitions. [2021-11-20 23:16:47,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:16:47,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-20 23:16:47,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:16:47,086 INFO L225 Difference]: With dead ends: 867 [2021-11-20 23:16:47,086 INFO L226 Difference]: Without dead ends: 801 [2021-11-20 23:16:47,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:16:47,087 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 24 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:16:47,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 8 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:16:47,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2021-11-20 23:16:47,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 645. [2021-11-20 23:16:47,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 644 states have (on average 3.06055900621118) internal successors, (1971), 644 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:47,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 1971 transitions. [2021-11-20 23:16:47,125 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 1971 transitions. Word has length 26 [2021-11-20 23:16:47,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:16:47,126 INFO L470 AbstractCegarLoop]: Abstraction has 645 states and 1971 transitions. [2021-11-20 23:16:47,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:47,126 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 1971 transitions. [2021-11-20 23:16:47,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-20 23:16:47,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:16:47,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:16:47,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 23:16:47,129 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:16:47,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:16:47,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1401875710, now seen corresponding path program 2 times [2021-11-20 23:16:47,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:16:47,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431259230] [2021-11-20 23:16:47,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:16:47,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:16:47,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:16:47,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:16:47,204 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:16:47,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431259230] [2021-11-20 23:16:47,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431259230] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:16:47,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:16:47,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:16:47,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719688103] [2021-11-20 23:16:47,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:16:47,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:16:47,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:16:47,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:16:47,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:16:47,206 INFO L87 Difference]: Start difference. First operand 645 states and 1971 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:47,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:16:47,313 INFO L93 Difference]: Finished difference Result 827 states and 2492 transitions. [2021-11-20 23:16:47,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:16:47,314 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-20 23:16:47,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:16:47,317 INFO L225 Difference]: With dead ends: 827 [2021-11-20 23:16:47,317 INFO L226 Difference]: Without dead ends: 355 [2021-11-20 23:16:47,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:16:47,318 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 19 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:16:47,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 16 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:16:47,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2021-11-20 23:16:47,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2021-11-20 23:16:47,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 354 states have (on average 2.790960451977401) internal successors, (988), 354 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:47,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 988 transitions. [2021-11-20 23:16:47,331 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 988 transitions. Word has length 26 [2021-11-20 23:16:47,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:16:47,331 INFO L470 AbstractCegarLoop]: Abstraction has 355 states and 988 transitions. [2021-11-20 23:16:47,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:47,331 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 988 transitions. [2021-11-20 23:16:47,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-20 23:16:47,333 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:16:47,333 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:16:47,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 23:16:47,333 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:16:47,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:16:47,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1405516858, now seen corresponding path program 3 times [2021-11-20 23:16:47,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:16:47,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515093863] [2021-11-20 23:16:47,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:16:47,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:16:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:16:47,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:16:47,413 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:16:47,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515093863] [2021-11-20 23:16:47,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515093863] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:16:47,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:16:47,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:16:47,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91954842] [2021-11-20 23:16:47,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:16:47,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:16:47,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:16:47,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:16:47,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:16:47,416 INFO L87 Difference]: Start difference. First operand 355 states and 988 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:47,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:16:47,516 INFO L93 Difference]: Finished difference Result 447 states and 1227 transitions. [2021-11-20 23:16:47,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:16:47,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-20 23:16:47,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:16:47,518 INFO L225 Difference]: With dead ends: 447 [2021-11-20 23:16:47,518 INFO L226 Difference]: Without dead ends: 184 [2021-11-20 23:16:47,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:16:47,519 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 16 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:16:47,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 15 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:16:47,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-11-20 23:16:47,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2021-11-20 23:16:47,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 2.480874316939891) internal successors, (454), 183 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:47,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 454 transitions. [2021-11-20 23:16:47,531 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 454 transitions. Word has length 26 [2021-11-20 23:16:47,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:16:47,531 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 454 transitions. [2021-11-20 23:16:47,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:47,531 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 454 transitions. [2021-11-20 23:16:47,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-20 23:16:47,533 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:16:47,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:16:47,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 23:16:47,534 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:16:47,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:16:47,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1927788924, now seen corresponding path program 4 times [2021-11-20 23:16:47,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:16:47,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013320617] [2021-11-20 23:16:47,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:16:47,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:16:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:16:47,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:16:47,642 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:16:47,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013320617] [2021-11-20 23:16:47,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013320617] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:16:47,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:16:47,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:16:47,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054101795] [2021-11-20 23:16:47,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:16:47,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:16:47,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:16:47,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:16:47,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:16:47,643 INFO L87 Difference]: Start difference. First operand 184 states and 454 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:47,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:16:47,756 INFO L93 Difference]: Finished difference Result 234 states and 572 transitions. [2021-11-20 23:16:47,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:16:47,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-20 23:16:47,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:16:47,758 INFO L225 Difference]: With dead ends: 234 [2021-11-20 23:16:47,758 INFO L226 Difference]: Without dead ends: 162 [2021-11-20 23:16:47,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:16:47,759 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 25 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:16:47,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 7 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:16:47,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-11-20 23:16:47,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 138. [2021-11-20 23:16:47,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 137 states have (on average 2.3795620437956204) internal successors, (326), 137 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:47,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 326 transitions. [2021-11-20 23:16:47,764 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 326 transitions. Word has length 26 [2021-11-20 23:16:47,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:16:47,765 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 326 transitions. [2021-11-20 23:16:47,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:47,765 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 326 transitions. [2021-11-20 23:16:47,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-20 23:16:47,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:16:47,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:16:47,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 23:16:47,766 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:16:47,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:16:47,766 INFO L85 PathProgramCache]: Analyzing trace with hash -592997412, now seen corresponding path program 5 times [2021-11-20 23:16:47,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:16:47,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043257247] [2021-11-20 23:16:47,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:16:47,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:16:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:16:47,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:16:47,836 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:16:47,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043257247] [2021-11-20 23:16:47,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043257247] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:16:47,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:16:47,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:16:47,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883696715] [2021-11-20 23:16:47,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:16:47,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:16:47,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:16:47,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:16:47,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:16:47,838 INFO L87 Difference]: Start difference. First operand 138 states and 326 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:47,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:16:47,923 INFO L93 Difference]: Finished difference Result 188 states and 444 transitions. [2021-11-20 23:16:47,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:16:47,924 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-20 23:16:47,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:16:47,925 INFO L225 Difference]: With dead ends: 188 [2021-11-20 23:16:47,925 INFO L226 Difference]: Without dead ends: 92 [2021-11-20 23:16:47,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:16:47,926 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 18 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:16:47,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 11 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:16:47,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-20 23:16:47,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-11-20 23:16:47,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 2.1758241758241756) internal successors, (198), 91 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:47,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 198 transitions. [2021-11-20 23:16:47,929 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 198 transitions. Word has length 26 [2021-11-20 23:16:47,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:16:47,930 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 198 transitions. [2021-11-20 23:16:47,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:16:47,930 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 198 transitions. [2021-11-20 23:16:47,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-20 23:16:47,931 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:16:47,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:16:47,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 23:16:47,931 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-20 23:16:47,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:16:47,931 INFO L85 PathProgramCache]: Analyzing trace with hash 238675490, now seen corresponding path program 6 times [2021-11-20 23:16:47,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:16:47,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268662919] [2021-11-20 23:16:47,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:16:47,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:16:47,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 23:16:47,993 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 23:16:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 23:16:48,100 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-20 23:16:48,100 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 23:16:48,101 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2021-11-20 23:16:48,103 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2021-11-20 23:16:48,103 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 7 remaining) [2021-11-20 23:16:48,103 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (3 of 7 remaining) [2021-11-20 23:16:48,103 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (2 of 7 remaining) [2021-11-20 23:16:48,104 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION (1 of 7 remaining) [2021-11-20 23:16:48,104 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2021-11-20 23:16:48,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 23:16:48,106 INFO L732 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:16:48,111 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-20 23:16:48,111 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 23:16:48,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:16:48 BasicIcfg [2021-11-20 23:16:48,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 23:16:48,231 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 23:16:48,232 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 23:16:48,232 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 23:16:48,232 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:16:34" (3/4) ... [2021-11-20 23:16:48,234 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-20 23:16:48,373 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c93dc96-da62-43cf-98d7-547b74d06051/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-20 23:16:48,373 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 23:16:48,374 INFO L158 Benchmark]: Toolchain (without parser) took 16182.26ms. Allocated memory was 90.2MB in the beginning and 249.6MB in the end (delta: 159.4MB). Free memory was 51.3MB in the beginning and 74.6MB in the end (delta: -23.3MB). Peak memory consumption was 134.8MB. Max. memory is 16.1GB. [2021-11-20 23:16:48,374 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 90.2MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:16:48,375 INFO L158 Benchmark]: CACSL2BoogieTranslator took 828.93ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 51.1MB in the beginning and 70.2MB in the end (delta: -19.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 23:16:48,376 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.90ms. Allocated memory is still 109.1MB. Free memory was 69.7MB in the beginning and 66.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 23:16:48,376 INFO L158 Benchmark]: Boogie Preprocessor took 44.94ms. Allocated memory is still 109.1MB. Free memory was 66.8MB in the beginning and 64.3MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 23:16:48,377 INFO L158 Benchmark]: RCFGBuilder took 1438.46ms. Allocated memory is still 109.1MB. Free memory was 64.3MB in the beginning and 50.5MB in the end (delta: 13.8MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2021-11-20 23:16:48,377 INFO L158 Benchmark]: TraceAbstraction took 13599.43ms. Allocated memory was 109.1MB in the beginning and 249.6MB in the end (delta: 140.5MB). Free memory was 49.8MB in the beginning and 98.7MB in the end (delta: -48.9MB). Peak memory consumption was 91.8MB. Max. memory is 16.1GB. [2021-11-20 23:16:48,378 INFO L158 Benchmark]: Witness Printer took 141.94ms. Allocated memory is still 249.6MB. Free memory was 98.7MB in the beginning and 74.6MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-20 23:16:48,384 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 90.2MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 828.93ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 51.1MB in the beginning and 70.2MB in the end (delta: -19.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.90ms. Allocated memory is still 109.1MB. Free memory was 69.7MB in the beginning and 66.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.94ms. Allocated memory is still 109.1MB. Free memory was 66.8MB in the beginning and 64.3MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1438.46ms. Allocated memory is still 109.1MB. Free memory was 64.3MB in the beginning and 50.5MB in the end (delta: 13.8MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. * TraceAbstraction took 13599.43ms. Allocated memory was 109.1MB in the beginning and 249.6MB in the end (delta: 140.5MB). Free memory was 49.8MB in the beginning and 98.7MB in the end (delta: -48.9MB). Peak memory consumption was 91.8MB. Max. memory is 16.1GB. * Witness Printer took 141.94ms. Allocated memory is still 249.6MB. Free memory was 98.7MB in the beginning and 74.6MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.9s, 149 PlacesBefore, 45 PlacesAfterwards, 138 TransitionsBefore, 33 TransitionsAfterwards, 3060 CoEnabledTransitionPairs, 8 FixpointIterations, 48 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 121 TotalNumberOfCompositions, 8641 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4371, positive: 4129, positive conditional: 0, positive unconditional: 4129, negative: 242, negative conditional: 0, negative unconditional: 242, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2311, positive: 2233, positive conditional: 0, positive unconditional: 2233, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2311, positive: 2208, positive conditional: 0, positive unconditional: 2208, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 103, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 726, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 679, negative conditional: 0, negative unconditional: 679, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4371, positive: 1896, positive conditional: 0, positive unconditional: 1896, negative: 164, negative conditional: 0, negative unconditional: 164, unknown: 2311, unknown conditional: 0, unknown unconditional: 2311] , Statistics on independence cache: Total cache size (in pairs): 256, Positive cache size: 230, Positive conditional cache size: 0, Positive unconditional cache size: 230, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p1_EAX = 0; [L716] 0 int __unbuffered_p2_EAX = 0; [L718] 0 int __unbuffered_p2_EBX = 0; [L720] 0 int __unbuffered_p3_EAX = 0; [L722] 0 int __unbuffered_p3_EBX = 0; [L724] 0 int a = 0; [L725] 0 _Bool main$tmp_guard0; [L726] 0 _Bool main$tmp_guard1; [L728] 0 int x = 0; [L730] 0 int y = 0; [L732] 0 int z = 0; [L733] 0 _Bool z$flush_delayed; [L734] 0 int z$mem_tmp; [L735] 0 _Bool z$r_buff0_thd0; [L736] 0 _Bool z$r_buff0_thd1; [L737] 0 _Bool z$r_buff0_thd2; [L738] 0 _Bool z$r_buff0_thd3; [L739] 0 _Bool z$r_buff0_thd4; [L740] 0 _Bool z$r_buff1_thd0; [L741] 0 _Bool z$r_buff1_thd1; [L742] 0 _Bool z$r_buff1_thd2; [L743] 0 _Bool z$r_buff1_thd3; [L744] 0 _Bool z$r_buff1_thd4; [L745] 0 _Bool z$read_delayed; [L746] 0 int *z$read_delayed_var; [L747] 0 int z$w_buff0; [L748] 0 _Bool z$w_buff0_used; [L749] 0 int z$w_buff1; [L750] 0 _Bool z$w_buff1_used; [L751] 0 _Bool weak$$choice0; [L752] 0 _Bool weak$$choice2; [L871] 0 pthread_t t93; [L872] FCALL, FORK 0 pthread_create(&t93, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t93, ((void *)0), P0, ((void *)0))=14, t93={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L873] 0 pthread_t t94; [L874] FCALL, FORK 0 pthread_create(&t94, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t94, ((void *)0), P1, ((void *)0))=15, t93={7:0}, t94={8:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L875] 0 pthread_t t95; [L876] FCALL, FORK 0 pthread_create(&t95, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t95, ((void *)0), P2, ((void *)0))=16, t93={7:0}, t94={8:0}, t95={9:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L877] 0 pthread_t t96; [L878] FCALL, FORK 0 pthread_create(&t96, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t96, ((void *)0), P3, ((void *)0))=17, t93={7:0}, t94={8:0}, t95={9:0}, t96={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L817] 4 z$w_buff1 = z$w_buff0 [L818] 4 z$w_buff0 = 1 [L819] 4 z$w_buff1_used = z$w_buff0_used [L820] 4 z$w_buff0_used = (_Bool)1 [L821] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L821] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L822] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L823] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L824] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L825] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L826] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L827] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L830] 4 weak$$choice0 = __VERIFIER_nondet_bool() [L831] 4 weak$$choice2 = __VERIFIER_nondet_bool() [L832] 4 z$flush_delayed = weak$$choice2 [L833] 4 z$mem_tmp = z [L834] EXPR 4 !z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : z$w_buff1) [L834] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : z$w_buff1 [L834] EXPR 4 !z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : z$w_buff1) [L834] 4 z = !z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : z$w_buff1) [L835] EXPR 4 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : z$w_buff0)) [L835] 4 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : z$w_buff0)) [L836] EXPR 4 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff1 : z$w_buff1)) [L836] 4 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff1 : z$w_buff1)) [L837] EXPR 4 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used)) [L837] 4 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used)) [L838] EXPR 4 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L838] 4 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L839] EXPR 4 weak$$choice2 ? z$r_buff0_thd4 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$r_buff0_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4)) [L839] 4 z$r_buff0_thd4 = weak$$choice2 ? z$r_buff0_thd4 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$r_buff0_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4)) [L840] EXPR 4 weak$$choice2 ? z$r_buff1_thd4 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$r_buff1_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L840] 4 z$r_buff1_thd4 = weak$$choice2 ? z$r_buff1_thd4 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$r_buff1_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L841] 4 __unbuffered_p3_EAX = z [L842] EXPR 4 z$flush_delayed ? z$mem_tmp : z [L842] 4 z = z$flush_delayed ? z$mem_tmp : z [L843] 4 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=1, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L846] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=1, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L756] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=1, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L759] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=1, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L764] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L766] 1 return 0; [L771] 2 x = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=1, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L774] 2 __unbuffered_p1_EAX = y VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=1, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L779] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L781] 2 return 0; [L786] 3 y = 1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=1, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L789] 3 __unbuffered_p2_EAX = y VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=1, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L792] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L793] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L794] 3 z$flush_delayed = weak$$choice2 [L795] 3 z$mem_tmp = z [L796] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L796] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L797] EXPR 3 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L797] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L798] EXPR 3 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L798] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L799] EXPR 3 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L799] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L800] EXPR 3 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L800] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L801] EXPR 3 weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L801] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L802] EXPR 3 weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L802] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L803] 3 __unbuffered_p2_EBX = z [L804] EXPR 3 z$flush_delayed ? z$mem_tmp : z [L804] 3 z = z$flush_delayed ? z$mem_tmp : z [L805] 3 z$flush_delayed = (_Bool)0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=255, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L810] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L812] 3 return 0; [L849] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L849] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L850] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L850] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L851] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L851] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L852] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L852] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L853] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L853] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L856] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L858] 4 return 0; [L880] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L882] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L882] RET 0 assume_abort_if_not(main$tmp_guard0) [L884] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L884] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L884] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L884] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L885] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L885] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L886] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L886] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L887] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L887] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L888] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L888] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L891] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L893] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=255, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 878]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 874]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 876]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 872]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 173 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 13.2s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.1s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 594 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 594 mSDsluCounter, 144 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 497 mSDsCounter, 84 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 920 IncrementalHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 84 mSolverCounterUnsat, 65 mSDtfsCounter, 920 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2602occurred in iteration=0, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 13 MinimizatonAttempts, 180 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 277 NumberOfCodeBlocks, 277 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 238 ConstructedInterpolants, 0 QuantifiedInterpolants, 1318 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-20 23:16:48,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c93dc96-da62-43cf-98d7-547b74d06051/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE