./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF --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 a86612b573a63cde2c4106f45bf8b3ea66989a894eb80420a80ff8b17f8f03d1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:43:00,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:43:00,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:43:00,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:43:00,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:43:00,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:43:00,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:43:00,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:43:00,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:43:00,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:43:00,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:43:00,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:43:00,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:43:00,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:43:00,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:43:00,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:43:00,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:43:00,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:43:00,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:43:00,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:43:00,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:43:00,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:43:00,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:43:01,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:43:01,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:43:01,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:43:01,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:43:01,011 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:43:01,012 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:43:01,013 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:43:01,013 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:43:01,014 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:43:01,015 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:43:01,015 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:43:01,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:43:01,017 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:43:01,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:43:01,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:43:01,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:43:01,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:43:01,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:43:01,026 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:43:01,071 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:43:01,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:43:01,073 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:43:01,073 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:43:01,073 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:43:01,073 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:43:01,074 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:43:01,074 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:43:01,074 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:43:01,074 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:43:01,075 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:43:01,075 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:43:01,076 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:43:01,076 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:43:01,076 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:43:01,076 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:43:01,077 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:43:01,077 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:43:01,077 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:43:01,077 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:43:01,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:43:01,078 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:43:01,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:43:01,078 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:43:01,078 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:43:01,079 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:43:01,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:43:01,079 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:43:01,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:43:01,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:43:01,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:43:01,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:43:01,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:43:01,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:43:01,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:43:01,082 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:43:01,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:43:01,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:43:01,083 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:43:01,083 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:43:01,083 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_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a86612b573a63cde2c4106f45bf8b3ea66989a894eb80420a80ff8b17f8f03d1 [2021-11-12 23:43:01,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:43:01,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:43:01,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:43:01,372 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:43:01,373 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:43:01,375 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i [2021-11-12 23:43:01,440 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/data/3a2e2ced0/ff8b9748346e43138044e5445c39d569/FLAG4ce726a5a [2021-11-12 23:43:01,985 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:43:01,986 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i [2021-11-12 23:43:02,014 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/data/3a2e2ced0/ff8b9748346e43138044e5445c39d569/FLAG4ce726a5a [2021-11-12 23:43:02,260 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/data/3a2e2ced0/ff8b9748346e43138044e5445c39d569 [2021-11-12 23:43:02,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:43:02,264 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:43:02,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:43:02,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:43:02,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:43:02,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:43:02" (1/1) ... [2021-11-12 23:43:02,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@758b2fe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:02, skipping insertion in model container [2021-11-12 23:43:02,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:43:02" (1/1) ... [2021-11-12 23:43:02,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:43:02,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:43:02,571 WARN L228 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_e6a5c2e8-0664-42f1-951f-87c0130cb19f/sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i[966,979] [2021-11-12 23:43:02,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:43:02,889 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:43:02,907 WARN L228 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_e6a5c2e8-0664-42f1-951f-87c0130cb19f/sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i[966,979] [2021-11-12 23:43:02,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:43:03,016 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:43:03,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:03 WrapperNode [2021-11-12 23:43:03,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:43:03,017 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:43:03,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:43:03,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:43:03,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:03" (1/1) ... [2021-11-12 23:43:03,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:03" (1/1) ... [2021-11-12 23:43:03,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:43:03,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:43:03,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:43:03,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:43:03,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:03" (1/1) ... [2021-11-12 23:43:03,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:03" (1/1) ... [2021-11-12 23:43:03,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:03" (1/1) ... [2021-11-12 23:43:03,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:03" (1/1) ... [2021-11-12 23:43:03,153 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:03" (1/1) ... [2021-11-12 23:43:03,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:03" (1/1) ... [2021-11-12 23:43:03,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:03" (1/1) ... [2021-11-12 23:43:03,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:43:03,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:43:03,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:43:03,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:43:03,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:03" (1/1) ... [2021-11-12 23:43:03,211 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:43:03,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:43:03,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:43:03,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:43:03,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 23:43:03,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-12 23:43:03,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:43:03,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:43:03,285 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-12 23:43:03,285 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-12 23:43:03,286 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-12 23:43:03,286 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-12 23:43:03,286 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-12 23:43:03,286 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-12 23:43:03,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:43:03,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-12 23:43:03,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:43:03,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:43:03,289 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 23:43:04,385 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:43:04,386 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 23:43:04,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:43:04 BoogieIcfgContainer [2021-11-12 23:43:04,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:43:04,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:43:04,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:43:04,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:43:04,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:43:02" (1/3) ... [2021-11-12 23:43:04,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2c02b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:43:04, skipping insertion in model container [2021-11-12 23:43:04,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:03" (2/3) ... [2021-11-12 23:43:04,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2c02b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:43:04, skipping insertion in model container [2021-11-12 23:43:04,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:43:04" (3/3) ... [2021-11-12 23:43:04,401 INFO L111 eAbstractionObserver]: Analyzing ICFG mix028_power.opt_pso.opt_rmo.opt.i [2021-11-12 23:43:04,407 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 23:43:04,407 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:43:04,408 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-12 23:43:04,408 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 23:43:04,452 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,452 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,453 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,453 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,453 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,454 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,454 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,454 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,455 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,456 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,456 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,456 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,456 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,457 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,457 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,458 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,458 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,459 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,459 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,459 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,460 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,460 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,461 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,461 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,462 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,462 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,463 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,463 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,463 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,464 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,464 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,464 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,464 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,464 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,465 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,465 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,465 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,466 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,466 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,466 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,466 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,467 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,467 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,468 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,468 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,468 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,468 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,469 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,469 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,469 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,470 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,470 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,470 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,470 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,471 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,471 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,471 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,472 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,472 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,472 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,473 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,473 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,473 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,473 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,473 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,473 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,474 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,474 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,475 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,475 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,475 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,475 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,475 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,476 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,476 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,476 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,477 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,477 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,477 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,477 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,477 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,478 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,478 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,478 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,479 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,479 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,487 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,488 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,491 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,491 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,491 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,491 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,492 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,492 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,492 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,492 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,494 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,494 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,495 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,495 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,495 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,495 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,495 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,495 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,496 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,496 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,496 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,496 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,497 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,497 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,497 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,497 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,497 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,498 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,498 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,498 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,498 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,500 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:04,500 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-12 23:43:04,557 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:43:04,564 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 [2021-11-12 23:43:04,564 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-12 23:43:04,578 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 23:43:04,591 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 116 transitions, 247 flow [2021-11-12 23:43:04,594 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 116 transitions, 247 flow [2021-11-12 23:43:04,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 116 transitions, 247 flow [2021-11-12 23:43:04,643 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-11-12 23:43:04,643 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-12 23:43:04,650 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-11-12 23:43:04,656 INFO L116 LiptonReduction]: Number of co-enabled transitions 2178 [2021-11-12 23:43:10,343 INFO L131 LiptonReduction]: Checked pairs total: 6101 [2021-11-12 23:43:10,343 INFO L133 LiptonReduction]: Total number of compositions: 101 [2021-11-12 23:43:10,352 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 29 transitions, 73 flow [2021-11-12 23:43:10,435 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1032 states, 1029 states have (on average 3.3877551020408165) internal successors, (3486), 1031 states have internal predecessors, (3486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:10,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 1032 states, 1029 states have (on average 3.3877551020408165) internal successors, (3486), 1031 states have internal predecessors, (3486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:10,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-12 23:43:10,446 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:43:10,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-12 23:43:10,447 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:43:10,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:43:10,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1077192937, now seen corresponding path program 1 times [2021-11-12 23:43:10,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:43:10,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781879307] [2021-11-12 23:43:10,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:43:10,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:43:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:43:10,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:43:10,689 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:43:10,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781879307] [2021-11-12 23:43:10,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781879307] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:43:10,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:43:10,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-12 23:43:10,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381050259] [2021-11-12 23:43:10,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:43:10,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:43:10,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:43:10,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:43:10,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:43:10,723 INFO L87 Difference]: Start difference. First operand has 1032 states, 1029 states have (on average 3.3877551020408165) internal successors, (3486), 1031 states have internal predecessors, (3486), 0 states have call successors, (0), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:10,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:43:10,856 INFO L93 Difference]: Finished difference Result 842 states and 2654 transitions. [2021-11-12 23:43:10,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:43:10,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2021-11-12 23:43:10,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:43:10,886 INFO L225 Difference]: With dead ends: 842 [2021-11-12 23:43:10,887 INFO L226 Difference]: Without dead ends: 812 [2021-11-12 23:43:10,888 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 [2021-11-12 23:43:10,891 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.02ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.37ms IncrementalHoareTripleChecker+Time [2021-11-12 23:43:10,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 8 Invalid, 39 Unknown, 0 Unchecked, 1.02ms Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 70.37ms Time] [2021-11-12 23:43:10,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2021-11-12 23:43:10,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 812. [2021-11-12 23:43:10,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 811 states have (on average 3.1750924784217016) internal successors, (2575), 811 states have internal predecessors, (2575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:10,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 2575 transitions. [2021-11-12 23:43:10,998 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 2575 transitions. Word has length 5 [2021-11-12 23:43:10,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:43:10,999 INFO L470 AbstractCegarLoop]: Abstraction has 812 states and 2575 transitions. [2021-11-12 23:43:10,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:10,999 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 2575 transitions. [2021-11-12 23:43:11,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-12 23:43:11,001 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:43:11,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:43:11,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 23:43:11,002 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:43:11,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:43:11,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1946847166, now seen corresponding path program 1 times [2021-11-12 23:43:11,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:43:11,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810224931] [2021-11-12 23:43:11,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:43:11,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:43:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:43:11,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:43:11,258 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:43:11,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810224931] [2021-11-12 23:43:11,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810224931] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:43:11,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:43:11,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 23:43:11,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389086591] [2021-11-12 23:43:11,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:43:11,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:43:11,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:43:11,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:43:11,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:43:11,262 INFO L87 Difference]: Start difference. First operand 812 states and 2575 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:11,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:43:11,422 INFO L93 Difference]: Finished difference Result 942 states and 2874 transitions. [2021-11-12 23:43:11,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:43:11,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2021-11-12 23:43:11,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:43:11,435 INFO L225 Difference]: With dead ends: 942 [2021-11-12 23:43:11,436 INFO L226 Difference]: Without dead ends: 792 [2021-11-12 23:43:11,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:43:11,440 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 26 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.41ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 111.12ms IncrementalHoareTripleChecker+Time [2021-11-12 23:43:11,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 16 Invalid, 75 Unknown, 0 Unchecked, 3.41ms Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 111.12ms Time] [2021-11-12 23:43:11,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2021-11-12 23:43:11,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 792. [2021-11-12 23:43:11,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 791 states have (on average 3.15929203539823) internal successors, (2499), 791 states have internal predecessors, (2499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:11,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 2499 transitions. [2021-11-12 23:43:11,505 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 2499 transitions. Word has length 10 [2021-11-12 23:43:11,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:43:11,506 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 2499 transitions. [2021-11-12 23:43:11,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:11,507 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 2499 transitions. [2021-11-12 23:43:11,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 23:43:11,516 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:43:11,516 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:43:11,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 23:43:11,517 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:43:11,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:43:11,518 INFO L85 PathProgramCache]: Analyzing trace with hash -223673502, now seen corresponding path program 1 times [2021-11-12 23:43:11,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:43:11,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185121546] [2021-11-12 23:43:11,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:43:11,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:43:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:43:11,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:43:11,679 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:43:11,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185121546] [2021-11-12 23:43:11,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185121546] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:43:11,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:43:11,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 23:43:11,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553256712] [2021-11-12 23:43:11,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:43:11,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:43:11,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:43:11,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:43:11,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:43:11,681 INFO L87 Difference]: Start difference. First operand 792 states and 2499 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2021-11-12 23:43:11,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:43:11,804 INFO L93 Difference]: Finished difference Result 852 states and 2592 transitions. [2021-11-12 23:43:11,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:43:11,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 [2021-11-12 23:43:11,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:43:11,812 INFO L225 Difference]: With dead ends: 852 [2021-11-12 23:43:11,812 INFO L226 Difference]: Without dead ends: 712 [2021-11-12 23:43:11,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:43:11,817 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 30 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 78.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.76ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 93.34ms IncrementalHoareTripleChecker+Time [2021-11-12 23:43:11,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 18 Invalid, 69 Unknown, 0 Unchecked, 1.76ms Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 93.34ms Time] [2021-11-12 23:43:11,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2021-11-12 23:43:11,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2021-11-12 23:43:11,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 711 states have (on average 3.1153305203938118) internal successors, (2215), 711 states have internal predecessors, (2215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:11,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 2215 transitions. [2021-11-12 23:43:11,853 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 2215 transitions. Word has length 11 [2021-11-12 23:43:11,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:43:11,853 INFO L470 AbstractCegarLoop]: Abstraction has 712 states and 2215 transitions. [2021-11-12 23:43:11,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2021-11-12 23:43:11,854 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 2215 transitions. [2021-11-12 23:43:11,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-12 23:43:11,855 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:43:11,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:43:11,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-12 23:43:11,856 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:43:11,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:43:11,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1656150020, now seen corresponding path program 1 times [2021-11-12 23:43:11,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:43:11,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82291514] [2021-11-12 23:43:11,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:43:11,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:43:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:43:12,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:43:12,053 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:43:12,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82291514] [2021-11-12 23:43:12,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82291514] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:43:12,060 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:43:12,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 23:43:12,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631347917] [2021-11-12 23:43:12,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:43:12,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:43:12,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:43:12,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:43:12,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:43:12,063 INFO L87 Difference]: Start difference. First operand 712 states and 2215 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:12,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:43:12,199 INFO L93 Difference]: Finished difference Result 796 states and 2398 transitions. [2021-11-12 23:43:12,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:43:12,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2021-11-12 23:43:12,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:43:12,207 INFO L225 Difference]: With dead ends: 796 [2021-11-12 23:43:12,207 INFO L226 Difference]: Without dead ends: 696 [2021-11-12 23:43:12,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:43:12,208 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 18 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.35ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 112.06ms IncrementalHoareTripleChecker+Time [2021-11-12 23:43:12,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 16 Invalid, 77 Unknown, 0 Unchecked, 1.35ms Time], IncrementalHoareTripleChecker [4 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 112.06ms Time] [2021-11-12 23:43:12,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2021-11-12 23:43:12,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 696. [2021-11-12 23:43:12,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 695 states have (on average 3.1007194244604315) internal successors, (2155), 695 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:12,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 2155 transitions. [2021-11-12 23:43:12,240 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 2155 transitions. Word has length 12 [2021-11-12 23:43:12,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:43:12,240 INFO L470 AbstractCegarLoop]: Abstraction has 696 states and 2155 transitions. [2021-11-12 23:43:12,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:12,240 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 2155 transitions. [2021-11-12 23:43:12,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-12 23:43:12,242 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:43:12,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:43:12,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-12 23:43:12,242 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:43:12,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:43:12,243 INFO L85 PathProgramCache]: Analyzing trace with hash -881033712, now seen corresponding path program 1 times [2021-11-12 23:43:12,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:43:12,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198007318] [2021-11-12 23:43:12,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:43:12,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:43:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:43:12,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:43:12,450 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:43:12,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198007318] [2021-11-12 23:43:12,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198007318] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:43:12,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:43:12,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:43:12,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449273154] [2021-11-12 23:43:12,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:43:12,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:43:12,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:43:12,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:43:12,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:43:12,452 INFO L87 Difference]: Start difference. First operand 696 states and 2155 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 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) [2021-11-12 23:43:12,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:43:12,658 INFO L93 Difference]: Finished difference Result 792 states and 2387 transitions. [2021-11-12 23:43:12,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:43:12,658 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 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 [2021-11-12 23:43:12,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:43:12,665 INFO L225 Difference]: With dead ends: 792 [2021-11-12 23:43:12,665 INFO L226 Difference]: Without dead ends: 704 [2021-11-12 23:43:12,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:43:12,667 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 52 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 142.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.56ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 162.46ms IncrementalHoareTripleChecker+Time [2021-11-12 23:43:12,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 21 Invalid, 113 Unknown, 0 Unchecked, 1.56ms Time], IncrementalHoareTripleChecker [13 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 162.46ms Time] [2021-11-12 23:43:12,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2021-11-12 23:43:12,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 704. [2021-11-12 23:43:12,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 703 states have (on average 3.0825035561877665) internal successors, (2167), 703 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:12,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 2167 transitions. [2021-11-12 23:43:12,699 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 2167 transitions. Word has length 13 [2021-11-12 23:43:12,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:43:12,699 INFO L470 AbstractCegarLoop]: Abstraction has 704 states and 2167 transitions. [2021-11-12 23:43:12,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 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) [2021-11-12 23:43:12,700 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 2167 transitions. [2021-11-12 23:43:12,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-12 23:43:12,702 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:43:12,702 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:43:12,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-12 23:43:12,702 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:43:12,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:43:12,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1856775037, now seen corresponding path program 1 times [2021-11-12 23:43:12,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:43:12,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998115241] [2021-11-12 23:43:12,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:43:12,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:43:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:43:12,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:43:12,805 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:43:12,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998115241] [2021-11-12 23:43:12,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998115241] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:43:12,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:43:12,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:43:12,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143449436] [2021-11-12 23:43:12,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:43:12,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:43:12,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:43:12,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:43:12,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:43:12,808 INFO L87 Difference]: Start difference. First operand 704 states and 2167 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:12,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:43:12,971 INFO L93 Difference]: Finished difference Result 774 states and 2335 transitions. [2021-11-12 23:43:12,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:43:12,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2021-11-12 23:43:12,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:43:12,979 INFO L225 Difference]: With dead ends: 774 [2021-11-12 23:43:12,979 INFO L226 Difference]: Without dead ends: 714 [2021-11-12 23:43:12,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:43:12,980 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 29 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 120.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.11ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 141.68ms IncrementalHoareTripleChecker+Time [2021-11-12 23:43:12,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 25 Invalid, 122 Unknown, 0 Unchecked, 1.11ms Time], IncrementalHoareTripleChecker [4 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 141.68ms Time] [2021-11-12 23:43:12,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2021-11-12 23:43:13,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 710. [2021-11-12 23:43:13,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 709 states have (on average 3.080394922425952) internal successors, (2184), 709 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:13,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 2184 transitions. [2021-11-12 23:43:13,012 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 2184 transitions. Word has length 14 [2021-11-12 23:43:13,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:43:13,012 INFO L470 AbstractCegarLoop]: Abstraction has 710 states and 2184 transitions. [2021-11-12 23:43:13,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:13,012 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 2184 transitions. [2021-11-12 23:43:13,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-12 23:43:13,014 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:43:13,014 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:43:13,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-12 23:43:13,015 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:43:13,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:43:13,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1193831799, now seen corresponding path program 2 times [2021-11-12 23:43:13,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:43:13,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448859443] [2021-11-12 23:43:13,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:43:13,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:43:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:43:13,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:43:13,132 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:43:13,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448859443] [2021-11-12 23:43:13,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448859443] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:43:13,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:43:13,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:43:13,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912490806] [2021-11-12 23:43:13,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:43:13,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:43:13,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:43:13,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:43:13,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:43:13,135 INFO L87 Difference]: Start difference. First operand 710 states and 2184 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:13,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:43:13,310 INFO L93 Difference]: Finished difference Result 750 states and 2261 transitions. [2021-11-12 23:43:13,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:43:13,311 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2021-11-12 23:43:13,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:43:13,317 INFO L225 Difference]: With dead ends: 750 [2021-11-12 23:43:13,318 INFO L226 Difference]: Without dead ends: 690 [2021-11-12 23:43:13,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:43:13,319 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 36 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 122.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.31ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 143.59ms IncrementalHoareTripleChecker+Time [2021-11-12 23:43:13,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 25 Invalid, 133 Unknown, 0 Unchecked, 1.31ms Time], IncrementalHoareTripleChecker [15 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 143.59ms Time] [2021-11-12 23:43:13,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2021-11-12 23:43:13,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 680. [2021-11-12 23:43:13,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 679 states have (on average 3.070692194403535) internal successors, (2085), 679 states have internal predecessors, (2085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:13,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 2085 transitions. [2021-11-12 23:43:13,348 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 2085 transitions. Word has length 14 [2021-11-12 23:43:13,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:43:13,348 INFO L470 AbstractCegarLoop]: Abstraction has 680 states and 2085 transitions. [2021-11-12 23:43:13,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:13,349 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 2085 transitions. [2021-11-12 23:43:13,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-12 23:43:13,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:43:13,351 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:43:13,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-12 23:43:13,351 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:43:13,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:43:13,352 INFO L85 PathProgramCache]: Analyzing trace with hash 981235057, now seen corresponding path program 1 times [2021-11-12 23:43:13,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:43:13,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890577055] [2021-11-12 23:43:13,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:43:13,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:43:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:43:13,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:43:13,431 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:43:13,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890577055] [2021-11-12 23:43:13,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890577055] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:43:13,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:43:13,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 23:43:13,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604058818] [2021-11-12 23:43:13,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:43:13,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:43:13,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:43:13,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:43:13,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:43:13,433 INFO L87 Difference]: Start difference. First operand 680 states and 2085 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 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) [2021-11-12 23:43:13,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:43:13,496 INFO L93 Difference]: Finished difference Result 456 states and 1189 transitions. [2021-11-12 23:43:13,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:43:13,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 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 [2021-11-12 23:43:13,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:43:13,500 INFO L225 Difference]: With dead ends: 456 [2021-11-12 23:43:13,500 INFO L226 Difference]: Without dead ends: 456 [2021-11-12 23:43:13,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:43:13,501 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.35ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.38ms IncrementalHoareTripleChecker+Time [2021-11-12 23:43:13,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 8 Invalid, 36 Unknown, 0 Unchecked, 0.35ms Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 56.38ms Time] [2021-11-12 23:43:13,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-11-12 23:43:13,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2021-11-12 23:43:13,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 455 states have (on average 2.6131868131868132) internal successors, (1189), 455 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:13,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 1189 transitions. [2021-11-12 23:43:13,519 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 1189 transitions. Word has length 15 [2021-11-12 23:43:13,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:43:13,519 INFO L470 AbstractCegarLoop]: Abstraction has 456 states and 1189 transitions. [2021-11-12 23:43:13,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 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) [2021-11-12 23:43:13,520 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 1189 transitions. [2021-11-12 23:43:13,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-12 23:43:13,521 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:43:13,521 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:43:13,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-12 23:43:13,521 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:43:13,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:43:13,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1282379873, now seen corresponding path program 1 times [2021-11-12 23:43:13,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:43:13,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614979204] [2021-11-12 23:43:13,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:43:13,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:43:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:43:13,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:43:13,589 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:43:13,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614979204] [2021-11-12 23:43:13,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614979204] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:43:13,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:43:13,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:43:13,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185574673] [2021-11-12 23:43:13,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:43:13,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:43:13,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:43:13,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:43:13,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:43:13,592 INFO L87 Difference]: Start difference. First operand 456 states and 1189 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:13,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:43:13,664 INFO L93 Difference]: Finished difference Result 270 states and 631 transitions. [2021-11-12 23:43:13,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:43:13,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2021-11-12 23:43:13,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:43:13,667 INFO L225 Difference]: With dead ends: 270 [2021-11-12 23:43:13,667 INFO L226 Difference]: Without dead ends: 270 [2021-11-12 23:43:13,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:43:13,668 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 34 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.51ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.25ms IncrementalHoareTripleChecker+Time [2021-11-12 23:43:13,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 12 Invalid, 50 Unknown, 0 Unchecked, 0.51ms Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 67.25ms Time] [2021-11-12 23:43:13,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-11-12 23:43:13,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 262. [2021-11-12 23:43:13,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 261 states have (on average 2.3409961685823757) internal successors, (611), 261 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:13,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 611 transitions. [2021-11-12 23:43:13,678 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 611 transitions. Word has length 16 [2021-11-12 23:43:13,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:43:13,679 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 611 transitions. [2021-11-12 23:43:13,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:13,679 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 611 transitions. [2021-11-12 23:43:13,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-12 23:43:13,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:43:13,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:43:13,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-12 23:43:13,681 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:43:13,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:43:13,681 INFO L85 PathProgramCache]: Analyzing trace with hash -232169724, now seen corresponding path program 1 times [2021-11-12 23:43:13,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:43:13,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529951295] [2021-11-12 23:43:13,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:43:13,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:43:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:43:13,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:43:13,768 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:43:13,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529951295] [2021-11-12 23:43:13,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529951295] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:43:13,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:43:13,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:43:13,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034733465] [2021-11-12 23:43:13,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:43:13,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:43:13,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:43:13,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:43:13,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:43:13,770 INFO L87 Difference]: Start difference. First operand 262 states and 611 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:13,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:43:13,852 INFO L93 Difference]: Finished difference Result 216 states and 519 transitions. [2021-11-12 23:43:13,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:43:13,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2021-11-12 23:43:13,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:43:13,854 INFO L225 Difference]: With dead ends: 216 [2021-11-12 23:43:13,854 INFO L226 Difference]: Without dead ends: 216 [2021-11-12 23:43:13,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:43:13,855 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 64 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.73ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.54ms IncrementalHoareTripleChecker+Time [2021-11-12 23:43:13,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 12 Invalid, 58 Unknown, 0 Unchecked, 0.73ms Time], IncrementalHoareTripleChecker [8 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 76.54ms Time] [2021-11-12 23:43:13,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-12 23:43:13,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-11-12 23:43:13,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 2.4139534883720932) internal successors, (519), 215 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:13,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 519 transitions. [2021-11-12 23:43:13,864 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 519 transitions. Word has length 19 [2021-11-12 23:43:13,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:43:13,864 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 519 transitions. [2021-11-12 23:43:13,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:13,864 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 519 transitions. [2021-11-12 23:43:13,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-12 23:43:13,866 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:43:13,866 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] [2021-11-12 23:43:13,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-12 23:43:13,866 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:43:13,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:43:13,867 INFO L85 PathProgramCache]: Analyzing trace with hash 116000800, now seen corresponding path program 1 times [2021-11-12 23:43:13,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:43:13,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933891547] [2021-11-12 23:43:13,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:43:13,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:43:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:43:14,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:43:14,014 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:43:14,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933891547] [2021-11-12 23:43:14,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933891547] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:43:14,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:43:14,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-12 23:43:14,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146570844] [2021-11-12 23:43:14,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:43:14,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:43:14,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:43:14,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:43:14,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:43:14,016 INFO L87 Difference]: Start difference. First operand 216 states and 519 transitions. Second operand has 6 states, 5 states have (on average 4.6) 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) [2021-11-12 23:43:14,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:43:14,235 INFO L93 Difference]: Finished difference Result 343 states and 807 transitions. [2021-11-12 23:43:14,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:43:14,236 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) 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 [2021-11-12 23:43:14,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:43:14,237 INFO L225 Difference]: With dead ends: 343 [2021-11-12 23:43:14,237 INFO L226 Difference]: Without dead ends: 132 [2021-11-12 23:43:14,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:43:14,238 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 40 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 148.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.31ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 174.86ms IncrementalHoareTripleChecker+Time [2021-11-12 23:43:14,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 44 Invalid, 203 Unknown, 0 Unchecked, 1.31ms Time], IncrementalHoareTripleChecker [2 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 174.86ms Time] [2021-11-12 23:43:14,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-11-12 23:43:14,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 108. [2021-11-12 23:43:14,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 2.0841121495327104) internal successors, (223), 107 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:14,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 223 transitions. [2021-11-12 23:43:14,243 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 223 transitions. Word has length 23 [2021-11-12 23:43:14,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:43:14,243 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 223 transitions. [2021-11-12 23:43:14,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) 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) [2021-11-12 23:43:14,243 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 223 transitions. [2021-11-12 23:43:14,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-12 23:43:14,244 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:43:14,244 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] [2021-11-12 23:43:14,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-12 23:43:14,244 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:43:14,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:43:14,245 INFO L85 PathProgramCache]: Analyzing trace with hash 395728090, now seen corresponding path program 2 times [2021-11-12 23:43:14,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:43:14,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775384990] [2021-11-12 23:43:14,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:43:14,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:43:14,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:43:14,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:43:14,503 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:43:14,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775384990] [2021-11-12 23:43:14,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775384990] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:43:14,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:43:14,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-12 23:43:14,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206356809] [2021-11-12 23:43:14,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:43:14,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:43:14,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:43:14,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:43:14,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:43:14,506 INFO L87 Difference]: Start difference. First operand 108 states and 223 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 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) [2021-11-12 23:43:14,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:43:14,711 INFO L93 Difference]: Finished difference Result 167 states and 344 transitions. [2021-11-12 23:43:14,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:43:14,712 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 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 [2021-11-12 23:43:14,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:43:14,714 INFO L225 Difference]: With dead ends: 167 [2021-11-12 23:43:14,714 INFO L226 Difference]: Without dead ends: 144 [2021-11-12 23:43:14,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:43:14,715 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 57 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 125.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.25ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 145.51ms IncrementalHoareTripleChecker+Time [2021-11-12 23:43:14,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 21 Invalid, 133 Unknown, 0 Unchecked, 1.25ms Time], IncrementalHoareTripleChecker [27 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 145.51ms Time] [2021-11-12 23:43:14,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-11-12 23:43:14,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 100. [2021-11-12 23:43:14,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 2.01010101010101) internal successors, (199), 99 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:14,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 199 transitions. [2021-11-12 23:43:14,720 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 199 transitions. Word has length 23 [2021-11-12 23:43:14,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:43:14,720 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 199 transitions. [2021-11-12 23:43:14,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 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) [2021-11-12 23:43:14,721 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 199 transitions. [2021-11-12 23:43:14,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-12 23:43:14,721 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:43:14,722 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] [2021-11-12 23:43:14,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-12 23:43:14,722 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:43:14,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:43:14,723 INFO L85 PathProgramCache]: Analyzing trace with hash 804003088, now seen corresponding path program 3 times [2021-11-12 23:43:14,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:43:14,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609784389] [2021-11-12 23:43:14,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:43:14,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:43:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:43:15,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:43:15,110 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:43:15,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609784389] [2021-11-12 23:43:15,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609784389] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:43:15,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:43:15,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:43:15,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704973506] [2021-11-12 23:43:15,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:43:15,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 23:43:15,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:43:15,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 23:43:15,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:43:15,112 INFO L87 Difference]: Start difference. First operand 100 states and 199 transitions. Second operand has 9 states, 8 states have (on average 2.875) internal successors, (23), 8 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) [2021-11-12 23:43:15,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:43:15,435 INFO L93 Difference]: Finished difference Result 139 states and 277 transitions. [2021-11-12 23:43:15,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:43:15,436 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 8 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 [2021-11-12 23:43:15,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:43:15,437 INFO L225 Difference]: With dead ends: 139 [2021-11-12 23:43:15,437 INFO L226 Difference]: Without dead ends: 104 [2021-11-12 23:43:15,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:43:15,438 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 46 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 184.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.78ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 212.43ms IncrementalHoareTripleChecker+Time [2021-11-12 23:43:15,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 43 Invalid, 200 Unknown, 0 Unchecked, 1.78ms Time], IncrementalHoareTripleChecker [34 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 212.43ms Time] [2021-11-12 23:43:15,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-11-12 23:43:15,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 86. [2021-11-12 23:43:15,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 2.011764705882353) internal successors, (171), 85 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:43:15,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 171 transitions. [2021-11-12 23:43:15,443 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 171 transitions. Word has length 23 [2021-11-12 23:43:15,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:43:15,444 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 171 transitions. [2021-11-12 23:43:15,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 8 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) [2021-11-12 23:43:15,444 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 171 transitions. [2021-11-12 23:43:15,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-12 23:43:15,446 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:43:15,446 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] [2021-11-12 23:43:15,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-12 23:43:15,446 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:43:15,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:43:15,447 INFO L85 PathProgramCache]: Analyzing trace with hash 524200758, now seen corresponding path program 4 times [2021-11-12 23:43:15,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:43:15,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172475014] [2021-11-12 23:43:15,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:43:15,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:43:15,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:43:15,532 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 23:43:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:43:15,683 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 23:43:15,684 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 23:43:15,685 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2021-11-12 23:43:15,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2021-11-12 23:43:15,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 6 remaining) [2021-11-12 23:43:15,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 6 remaining) [2021-11-12 23:43:15,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 6 remaining) [2021-11-12 23:43:15,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2021-11-12 23:43:15,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-12 23:43:15,690 INFO L732 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:43:15,695 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-12 23:43:15,695 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:43:15,781 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:43:15,793 INFO L158 Benchmark]: Toolchain (without parser) took 13529.42ms. Allocated memory was 94.4MB in the beginning and 237.0MB in the end (delta: 142.6MB). Free memory was 53.6MB in the beginning and 178.1MB in the end (delta: -124.5MB). Peak memory consumption was 108.2MB. Max. memory is 16.1GB. [2021-11-12 23:43:15,794 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 94.4MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:43:15,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 749.37ms. Allocated memory is still 94.4MB. Free memory was 53.4MB in the beginning and 55.2MB in the end (delta: -1.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-12 23:43:15,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.91ms. Allocated memory is still 94.4MB. Free memory was 55.2MB in the beginning and 52.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:43:15,795 INFO L158 Benchmark]: Boogie Preprocessor took 67.84ms. Allocated memory is still 94.4MB. Free memory was 52.3MB in the beginning and 49.9MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-12 23:43:15,795 INFO L158 Benchmark]: RCFGBuilder took 1204.03ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 49.9MB in the beginning and 77.5MB in the end (delta: -27.6MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2021-11-12 23:43:15,801 INFO L158 Benchmark]: TraceAbstraction took 11401.95ms. Allocated memory was 117.4MB in the beginning and 237.0MB in the end (delta: 119.5MB). Free memory was 77.0MB in the beginning and 178.1MB in the end (delta: -101.1MB). Peak memory consumption was 109.7MB. Max. memory is 16.1GB. [2021-11-12 23:43:15,803 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 94.4MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 749.37ms. Allocated memory is still 94.4MB. Free memory was 53.4MB in the beginning and 55.2MB in the end (delta: -1.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.91ms. Allocated memory is still 94.4MB. Free memory was 55.2MB in the beginning and 52.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.84ms. Allocated memory is still 94.4MB. Free memory was 52.3MB in the beginning and 49.9MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1204.03ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 49.9MB in the beginning and 77.5MB in the end (delta: -27.6MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. * TraceAbstraction took 11401.95ms. Allocated memory was 117.4MB in the beginning and 237.0MB in the end (delta: 119.5MB). Free memory was 77.0MB in the beginning and 178.1MB in the end (delta: -101.1MB). Peak memory consumption was 109.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.7s, 124 PlacesBefore, 38 PlacesAfterwards, 116 TransitionsBefore, 29 TransitionsAfterwards, 2178 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 101 TotalNumberOfCompositions, 6101 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3147, positive: 2961, positive conditional: 0, positive unconditional: 2961, negative: 186, negative conditional: 0, negative unconditional: 186, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1541, positive: 1491, positive conditional: 0, positive unconditional: 1491, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1541, positive: 1473, positive conditional: 0, positive unconditional: 1473, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 68, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 453, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 431, negative conditional: 0, negative unconditional: 431, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3147, positive: 1470, positive conditional: 0, positive unconditional: 1470, negative: 136, negative conditional: 0, negative unconditional: 136, unknown: 1541, unknown conditional: 0, unknown unconditional: 1541] , Statistics on independence cache: Total cache size (in pairs): 172, Positive cache size: 151, Positive conditional cache size: 0, Positive unconditional cache size: 151, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21 - 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 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-12 23:43:15,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF --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 a86612b573a63cde2c4106f45bf8b3ea66989a894eb80420a80ff8b17f8f03d1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:43:18,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:43:18,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:43:18,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:43:18,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:43:18,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:43:18,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:43:18,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:43:18,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:43:18,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:43:18,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:43:18,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:43:18,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:43:18,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:43:18,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:43:18,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:43:18,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:43:18,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:43:18,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:43:18,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:43:18,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:43:18,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:43:18,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:43:18,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:43:18,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:43:18,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:43:18,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:43:18,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:43:18,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:43:18,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:43:18,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:43:18,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:43:18,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:43:18,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:43:18,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:43:18,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:43:18,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:43:18,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:43:18,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:43:18,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:43:18,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:43:18,366 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-12 23:43:18,410 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:43:18,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:43:18,411 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:43:18,411 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:43:18,411 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:43:18,412 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:43:18,412 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:43:18,412 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:43:18,412 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:43:18,412 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:43:18,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:43:18,416 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:43:18,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:43:18,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:43:18,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:43:18,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:43:18,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:43:18,418 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:43:18,418 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:43:18,418 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:43:18,418 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:43:18,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:43:18,419 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:43:18,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:43:18,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:43:18,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:43:18,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:43:18,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:43:18,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:43:18,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:43:18,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:43:18,422 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:43:18,422 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:43:18,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:43:18,423 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:43:18,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:43:18,424 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a86612b573a63cde2c4106f45bf8b3ea66989a894eb80420a80ff8b17f8f03d1 [2021-11-12 23:43:18,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:43:18,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:43:18,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:43:18,842 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:43:18,842 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:43:18,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i [2021-11-12 23:43:18,921 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/data/7f2942bc1/c60c850aa3ed4d8d8573e5ac7f8a93f5/FLAG23e27f250 [2021-11-12 23:43:19,595 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:43:19,595 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i [2021-11-12 23:43:19,626 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/data/7f2942bc1/c60c850aa3ed4d8d8573e5ac7f8a93f5/FLAG23e27f250 [2021-11-12 23:43:19,928 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/data/7f2942bc1/c60c850aa3ed4d8d8573e5ac7f8a93f5 [2021-11-12 23:43:19,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:43:19,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:43:19,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:43:19,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:43:19,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:43:19,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:43:19" (1/1) ... [2021-11-12 23:43:19,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@104d2f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:19, skipping insertion in model container [2021-11-12 23:43:19,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:43:19" (1/1) ... [2021-11-12 23:43:19,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:43:20,017 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:43:20,185 WARN L228 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_e6a5c2e8-0664-42f1-951f-87c0130cb19f/sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i[966,979] [2021-11-12 23:43:20,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:43:20,481 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:43:20,493 WARN L228 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_e6a5c2e8-0664-42f1-951f-87c0130cb19f/sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i[966,979] [2021-11-12 23:43:20,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:43:20,611 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:43:20,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20 WrapperNode [2021-11-12 23:43:20,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:43:20,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:43:20,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:43:20,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:43:20,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (1/1) ... [2021-11-12 23:43:20,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (1/1) ... [2021-11-12 23:43:20,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:43:20,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:43:20,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:43:20,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:43:20,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (1/1) ... [2021-11-12 23:43:20,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (1/1) ... [2021-11-12 23:43:20,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (1/1) ... [2021-11-12 23:43:20,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (1/1) ... [2021-11-12 23:43:20,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (1/1) ... [2021-11-12 23:43:20,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (1/1) ... [2021-11-12 23:43:20,821 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (1/1) ... [2021-11-12 23:43:20,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:43:20,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:43:20,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:43:20,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:43:20,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (1/1) ... [2021-11-12 23:43:20,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:43:20,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:43:20,864 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:43:20,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:43:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-12 23:43:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:43:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:43:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:43:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:43:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-12 23:43:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-12 23:43:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-12 23:43:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-12 23:43:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-12 23:43:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-12 23:43:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-12 23:43:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:43:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:43:20,914 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 23:43:22,087 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:43:22,087 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 23:43:22,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:43:22 BoogieIcfgContainer [2021-11-12 23:43:22,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:43:22,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:43:22,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:43:22,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:43:22,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:43:19" (1/3) ... [2021-11-12 23:43:22,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e470fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:43:22, skipping insertion in model container [2021-11-12 23:43:22,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (2/3) ... [2021-11-12 23:43:22,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e470fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:43:22, skipping insertion in model container [2021-11-12 23:43:22,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:43:22" (3/3) ... [2021-11-12 23:43:22,100 INFO L111 eAbstractionObserver]: Analyzing ICFG mix028_power.opt_pso.opt_rmo.opt.i [2021-11-12 23:43:22,106 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 23:43:22,106 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:43:22,107 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-12 23:43:22,107 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 23:43:22,160 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,160 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,161 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,161 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,161 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,161 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,162 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,162 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,163 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,163 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,163 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,163 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,163 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,164 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,165 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,165 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,165 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,165 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,166 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,166 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,166 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,167 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,168 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,168 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,169 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,169 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,170 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,170 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,170 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,171 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,171 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,171 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,171 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,172 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,172 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,172 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,172 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,173 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,173 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,173 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,173 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,174 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,174 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,174 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,174 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,175 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,175 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,175 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,176 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,176 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,176 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,177 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,177 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,177 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,178 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,178 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,179 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,180 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,180 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,180 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,181 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,181 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,181 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,182 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,182 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,183 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,183 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,183 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,183 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,184 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,184 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,184 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,185 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,185 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,185 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,186 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,186 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,186 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,186 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,186 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,187 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,187 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,189 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,191 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,191 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,192 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,197 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,198 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,199 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,199 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,199 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,199 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,205 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,205 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,206 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,206 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,207 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,207 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,207 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,208 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,208 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,208 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,208 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,208 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,209 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,209 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,209 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,210 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,210 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,210 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,210 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,211 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,211 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,211 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,211 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,211 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,212 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,213 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:22,214 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-12 23:43:22,275 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:43:22,282 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 [2021-11-12 23:43:22,282 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-12 23:43:22,296 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 23:43:22,311 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 117 transitions, 249 flow [2021-11-12 23:43:22,314 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 117 transitions, 249 flow [2021-11-12 23:43:22,316 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 125 places, 117 transitions, 249 flow [2021-11-12 23:43:22,364 INFO L129 PetriNetUnfolder]: 2/114 cut-off events. [2021-11-12 23:43:22,364 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-12 23:43:22,368 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 2/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-11-12 23:43:22,372 INFO L116 LiptonReduction]: Number of co-enabled transitions 2178 [2021-11-12 23:44:02,214 INFO L131 LiptonReduction]: Checked pairs total: 5860 [2021-11-12 23:44:02,214 INFO L133 LiptonReduction]: Total number of compositions: 102 [2021-11-12 23:44:02,227 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 28 transitions, 71 flow [2021-11-12 23:44:02,318 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 852 states, 849 states have (on average 3.371024734982332) internal successors, (2862), 851 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:02,323 INFO L276 IsEmpty]: Start isEmpty. Operand has 852 states, 849 states have (on average 3.371024734982332) internal successors, (2862), 851 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:02,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-12 23:44:02,328 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:02,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-12 23:44:02,330 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:44:02,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:02,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1080025073, now seen corresponding path program 1 times [2021-11-12 23:44:02,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:02,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591947289] [2021-11-12 23:44:02,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:02,358 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:02,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:02,370 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:02,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:44:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:02,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:44:02,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:02,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:02,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:02,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:02,740 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:44:02,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591947289] [2021-11-12 23:44:02,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591947289] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:44:02,741 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:44:02,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-11-12 23:44:02,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617638432] [2021-11-12 23:44:02,743 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:44:02,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:44:02,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:44:02,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:44:02,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:44:02,774 INFO L87 Difference]: Start difference. First operand has 852 states, 849 states have (on average 3.371024734982332) internal successors, (2862), 851 states have internal predecessors, (2862), 0 states have call successors, (0), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:03,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:03,011 INFO L93 Difference]: Finished difference Result 692 states and 2139 transitions. [2021-11-12 23:44:03,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:44:03,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2021-11-12 23:44:03,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:03,037 INFO L225 Difference]: With dead ends: 692 [2021-11-12 23:44:03,038 INFO L226 Difference]: Without dead ends: 662 [2021-11-12 23:44:03,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:44:03,042 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 10 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 158.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.02ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 176.86ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:03,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 8 Invalid, 38 Unknown, 0 Unchecked, 1.02ms Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 176.86ms Time] [2021-11-12 23:44:03,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-11-12 23:44:03,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2021-11-12 23:44:03,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 3.1164901664145233) internal successors, (2060), 661 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:03,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 2060 transitions. [2021-11-12 23:44:03,182 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 2060 transitions. Word has length 5 [2021-11-12 23:44:03,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:03,183 INFO L470 AbstractCegarLoop]: Abstraction has 662 states and 2060 transitions. [2021-11-12 23:44:03,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:03,183 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 2060 transitions. [2021-11-12 23:44:03,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-12 23:44:03,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:03,185 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:44:03,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-12 23:44:03,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:44:03,398 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:44:03,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:03,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1359571700, now seen corresponding path program 1 times [2021-11-12 23:44:03,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:03,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1304842696] [2021-11-12 23:44:03,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:03,401 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:03,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:03,402 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:03,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:44:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:03,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:44:03,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:03,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:03,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:03,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:03,718 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:44:03,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1304842696] [2021-11-12 23:44:03,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1304842696] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:44:03,718 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:44:03,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-12 23:44:03,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067628291] [2021-11-12 23:44:03,719 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:44:03,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:44:03,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:44:03,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:44:03,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:44:03,721 INFO L87 Difference]: Start difference. First operand 662 states and 2060 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:03,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:03,847 INFO L93 Difference]: Finished difference Result 254 states and 596 transitions. [2021-11-12 23:44:03,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:44:03,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 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 [2021-11-12 23:44:03,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:03,850 INFO L225 Difference]: With dead ends: 254 [2021-11-12 23:44:03,850 INFO L226 Difference]: Without dead ends: 254 [2021-11-12 23:44:03,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:44:03,852 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 20 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 95.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.10ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 113.43ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:03,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 12 Invalid, 51 Unknown, 0 Unchecked, 1.10ms Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 113.43ms Time] [2021-11-12 23:44:03,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-11-12 23:44:03,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2021-11-12 23:44:03,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 253 states have (on average 2.355731225296443) internal successors, (596), 253 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:03,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 596 transitions. [2021-11-12 23:44:03,863 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 596 transitions. Word has length 9 [2021-11-12 23:44:03,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:03,864 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 596 transitions. [2021-11-12 23:44:03,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:03,864 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 596 transitions. [2021-11-12 23:44:03,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-12 23:44:03,867 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:03,867 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:44:03,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:04,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:44:04,084 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:44:04,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:04,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1893052547, now seen corresponding path program 1 times [2021-11-12 23:44:04,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:04,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669835721] [2021-11-12 23:44:04,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:04,086 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:04,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:04,088 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:04,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:44:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:04,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:44:04,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:04,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:04,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:04,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:04,492 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:44:04,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669835721] [2021-11-12 23:44:04,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669835721] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:44:04,493 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:44:04,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-12 23:44:04,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41181727] [2021-11-12 23:44:04,493 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:44:04,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:44:04,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:44:04,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:44:04,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:44:04,496 INFO L87 Difference]: Start difference. First operand 254 states and 596 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:04,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:04,712 INFO L93 Difference]: Finished difference Result 215 states and 518 transitions. [2021-11-12 23:44:04,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:44:04,713 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 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 [2021-11-12 23:44:04,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:04,715 INFO L225 Difference]: With dead ends: 215 [2021-11-12 23:44:04,715 INFO L226 Difference]: Without dead ends: 215 [2021-11-12 23:44:04,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:44:04,717 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 74 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 157.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.67ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 196.22ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:04,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 40 Invalid, 160 Unknown, 0 Unchecked, 2.67ms Time], IncrementalHoareTripleChecker [17 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 196.22ms Time] [2021-11-12 23:44:04,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-11-12 23:44:04,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2021-11-12 23:44:04,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 214 states have (on average 2.4205607476635516) internal successors, (518), 214 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:04,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 518 transitions. [2021-11-12 23:44:04,748 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 518 transitions. Word has length 17 [2021-11-12 23:44:04,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:04,749 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 518 transitions. [2021-11-12 23:44:04,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:04,749 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 518 transitions. [2021-11-12 23:44:04,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-12 23:44:04,752 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:04,752 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] [2021-11-12 23:44:04,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:04,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:44:04,965 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:44:04,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:04,966 INFO L85 PathProgramCache]: Analyzing trace with hash -201534993, now seen corresponding path program 1 times [2021-11-12 23:44:04,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:04,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [547131957] [2021-11-12 23:44:04,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:04,967 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:04,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:04,970 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:05,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:44:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:05,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:44:05,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:05,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:05,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:05,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:05,317 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:44:05,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [547131957] [2021-11-12 23:44:05,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [547131957] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:44:05,318 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:44:05,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-12 23:44:05,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199653260] [2021-11-12 23:44:05,319 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:44:05,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:44:05,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:44:05,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:44:05,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:44:05,320 INFO L87 Difference]: Start difference. First operand 215 states and 518 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:05,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:05,438 INFO L93 Difference]: Finished difference Result 292 states and 690 transitions. [2021-11-12 23:44:05,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:44:05,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 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 22 [2021-11-12 23:44:05,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:05,441 INFO L225 Difference]: With dead ends: 292 [2021-11-12 23:44:05,441 INFO L226 Difference]: Without dead ends: 165 [2021-11-12 23:44:05,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:44:05,442 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 20 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 95.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.81ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 111.83ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:05,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 10 Invalid, 62 Unknown, 0 Unchecked, 0.81ms Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 111.83ms Time] [2021-11-12 23:44:05,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-11-12 23:44:05,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2021-11-12 23:44:05,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 164 states have (on average 2.3048780487804876) internal successors, (378), 164 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:05,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 378 transitions. [2021-11-12 23:44:05,450 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 378 transitions. Word has length 22 [2021-11-12 23:44:05,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:05,450 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 378 transitions. [2021-11-12 23:44:05,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:05,451 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 378 transitions. [2021-11-12 23:44:05,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-12 23:44:05,452 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:05,452 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] [2021-11-12 23:44:05,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:05,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:44:05,658 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:44:05,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:05,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1766651151, now seen corresponding path program 2 times [2021-11-12 23:44:05,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:05,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [28394763] [2021-11-12 23:44:05,659 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:44:05,659 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:05,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:05,664 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:05,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:44:05,862 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-12 23:44:05,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:44:05,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:44:05,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:05,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:05,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:06,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:06,057 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:44:06,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [28394763] [2021-11-12 23:44:06,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [28394763] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:44:06,058 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:44:06,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 23:44:06,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979531687] [2021-11-12 23:44:06,058 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:44:06,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:44:06,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:44:06,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:44:06,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:44:06,060 INFO L87 Difference]: Start difference. First operand 165 states and 378 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:06,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:06,219 INFO L93 Difference]: Finished difference Result 203 states and 455 transitions. [2021-11-12 23:44:06,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:44:06,220 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 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 22 [2021-11-12 23:44:06,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:06,221 INFO L225 Difference]: With dead ends: 203 [2021-11-12 23:44:06,221 INFO L226 Difference]: Without dead ends: 73 [2021-11-12 23:44:06,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:44:06,222 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 22 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 120.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.72ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 143.14ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:06,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 16 Invalid, 88 Unknown, 0 Unchecked, 0.72ms Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 143.14ms Time] [2021-11-12 23:44:06,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-12 23:44:06,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-11-12 23:44:06,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.9166666666666667) internal successors, (138), 72 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:06,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 138 transitions. [2021-11-12 23:44:06,225 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 138 transitions. Word has length 22 [2021-11-12 23:44:06,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:06,225 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 138 transitions. [2021-11-12 23:44:06,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:06,225 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 138 transitions. [2021-11-12 23:44:06,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-12 23:44:06,226 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:06,226 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] [2021-11-12 23:44:06,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:06,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:44:06,440 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:44:06,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:06,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1301655481, now seen corresponding path program 3 times [2021-11-12 23:44:06,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:06,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [927351949] [2021-11-12 23:44:06,441 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:44:06,441 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:06,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:06,442 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:06,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:44:06,620 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-12 23:44:06,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:44:06,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-12 23:44:06,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:07,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:07,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:09,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:09,378 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:44:09,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [927351949] [2021-11-12 23:44:09,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [927351949] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:44:09,378 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:44:09,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 14 [2021-11-12 23:44:09,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383684265] [2021-11-12 23:44:09,379 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:44:09,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-12 23:44:09,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:44:09,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-12 23:44:09,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2021-11-12 23:44:09,380 INFO L87 Difference]: Start difference. First operand 73 states and 138 transitions. Second operand has 16 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:09,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:09,765 INFO L93 Difference]: Finished difference Result 93 states and 173 transitions. [2021-11-12 23:44:09,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:44:09,766 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 0 states have call successors, (0), 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 22 [2021-11-12 23:44:09,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:09,767 INFO L225 Difference]: With dead ends: 93 [2021-11-12 23:44:09,767 INFO L226 Difference]: Without dead ends: 51 [2021-11-12 23:44:09,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2021-11-12 23:44:09,768 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 109 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 201.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.10ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 231.42ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:09,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 34 Invalid, 209 Unknown, 0 Unchecked, 2.10ms Time], IncrementalHoareTripleChecker [45 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 231.42ms Time] [2021-11-12 23:44:09,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-12 23:44:09,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-11-12 23:44:09,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.72) internal successors, (86), 50 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:09,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 86 transitions. [2021-11-12 23:44:09,771 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 86 transitions. Word has length 22 [2021-11-12 23:44:09,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:09,771 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 86 transitions. [2021-11-12 23:44:09,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:09,772 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 86 transitions. [2021-11-12 23:44:09,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-12 23:44:09,772 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:09,772 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] [2021-11-12 23:44:09,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:09,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:44:09,982 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:44:09,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:09,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1025896697, now seen corresponding path program 4 times [2021-11-12 23:44:09,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:09,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608571206] [2021-11-12 23:44:09,983 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:44:09,983 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:09,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:09,984 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:09,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:44:10,191 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:44:10,191 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-11-12 23:44:10,191 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 23:44:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:44:10,376 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-12 23:44:10,376 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 23:44:10,377 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2021-11-12 23:44:10,379 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2021-11-12 23:44:10,379 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 6 remaining) [2021-11-12 23:44:10,379 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 6 remaining) [2021-11-12 23:44:10,380 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 6 remaining) [2021-11-12 23:44:10,380 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2021-11-12 23:44:10,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:10,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:44:10,596 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2021-11-12 23:44:10,613 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-12 23:44:10,613 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:44:10,671 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:44:10,672 INFO L158 Benchmark]: Toolchain (without parser) took 50739.42ms. Allocated memory was 48.2MB in the beginning and 109.1MB in the end (delta: 60.8MB). Free memory was 31.9MB in the beginning and 67.2MB in the end (delta: -35.3MB). Peak memory consumption was 71.4MB. Max. memory is 16.1GB. [2021-11-12 23:44:10,672 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 48.2MB. Free memory was 29.4MB in the beginning and 29.4MB in the end (delta: 31.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:44:10,672 INFO L158 Benchmark]: CACSL2BoogieTranslator took 679.20ms. Allocated memory was 48.2MB in the beginning and 69.2MB in the end (delta: 21.0MB). Free memory was 31.6MB in the beginning and 39.0MB in the end (delta: -7.4MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2021-11-12 23:44:10,673 INFO L158 Benchmark]: Boogie Procedure Inliner took 125.48ms. Allocated memory is still 69.2MB. Free memory was 38.8MB in the beginning and 50.9MB in the end (delta: -12.1MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2021-11-12 23:44:10,673 INFO L158 Benchmark]: Boogie Preprocessor took 86.72ms. Allocated memory is still 69.2MB. Free memory was 50.9MB in the beginning and 48.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:44:10,673 INFO L158 Benchmark]: RCFGBuilder took 1262.84ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 48.5MB in the beginning and 62.2MB in the end (delta: -13.8MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2021-11-12 23:44:10,683 INFO L158 Benchmark]: TraceAbstraction took 48577.99ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 61.7MB in the beginning and 67.2MB in the end (delta: -5.5MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. [2021-11-12 23:44:10,686 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 48.2MB. Free memory was 29.4MB in the beginning and 29.4MB in the end (delta: 31.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 679.20ms. Allocated memory was 48.2MB in the beginning and 69.2MB in the end (delta: 21.0MB). Free memory was 31.6MB in the beginning and 39.0MB in the end (delta: -7.4MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 125.48ms. Allocated memory is still 69.2MB. Free memory was 38.8MB in the beginning and 50.9MB in the end (delta: -12.1MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.72ms. Allocated memory is still 69.2MB. Free memory was 50.9MB in the beginning and 48.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1262.84ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 48.5MB in the beginning and 62.2MB in the end (delta: -13.8MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. * TraceAbstraction took 48577.99ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 61.7MB in the beginning and 67.2MB in the end (delta: -5.5MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.9s, 125 PlacesBefore, 37 PlacesAfterwards, 117 TransitionsBefore, 28 TransitionsAfterwards, 2178 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 102 TotalNumberOfCompositions, 5860 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2747, positive: 2565, positive conditional: 0, positive unconditional: 2565, negative: 182, negative conditional: 0, negative unconditional: 182, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1578, positive: 1512, positive conditional: 0, positive unconditional: 1512, negative: 66, negative conditional: 0, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1578, positive: 1502, positive conditional: 0, positive unconditional: 1502, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 76, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 66, negative conditional: 0, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1405, positive: 212, positive conditional: 0, positive unconditional: 212, negative: 1193, negative conditional: 0, negative unconditional: 1193, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2747, positive: 1053, positive conditional: 0, positive unconditional: 1053, negative: 116, negative conditional: 0, negative unconditional: 116, unknown: 1578, unknown conditional: 0, unknown unconditional: 1578] , Statistics on independence cache: Total cache size (in pairs): 149, Positive cache size: 123, Positive conditional cache size: 0, Positive unconditional cache size: 123, 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 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-12 23:44:10,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a5c2e8-0664-42f1-951f-87c0130cb19f/bin/utaipan-vmNK8stdcF/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 Result: ERROR: ExceptionOrErrorResult: NullPointerException: null