./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe035_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d32def-6fb6-470d-a2cb-29e0e409f2d7/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d32def-6fb6-470d-a2cb-29e0e409f2d7/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d32def-6fb6-470d-a2cb-29e0e409f2d7/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d32def-6fb6-470d-a2cb-29e0e409f2d7/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe035_pso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d32def-6fb6-470d-a2cb-29e0e409f2d7/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d32def-6fb6-470d-a2cb-29e0e409f2d7/bin/utaipan-q2qaUkNPG8 --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 4902106199f526aef443e534fd0d5059549d1a4f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:21:51,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:21:51,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:21:51,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:21:51,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:21:51,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:21:51,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:21:51,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:21:51,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:21:51,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:21:51,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:21:51,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:21:51,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:21:51,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:21:52,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:21:52,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:21:52,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:21:52,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:21:52,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:21:52,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:21:52,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:21:52,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:21:52,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:21:52,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:21:52,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:21:52,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:21:52,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:21:52,037 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:21:52,038 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:21:52,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:21:52,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:21:52,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:21:52,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:21:52,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:21:52,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:21:52,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:21:52,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:21:52,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:21:52,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:21:52,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:21:52,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:21:52,049 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d32def-6fb6-470d-a2cb-29e0e409f2d7/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:21:52,098 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:21:52,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:21:52,100 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:21:52,100 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:21:52,100 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:21:52,101 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:21:52,101 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:21:52,101 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:21:52,108 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:21:52,108 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:21:52,109 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:21:52,110 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:21:52,110 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:21:52,110 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:21:52,110 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:21:52,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:21:52,112 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:21:52,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:21:52,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:21:52,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:21:52,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:21:52,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:21:52,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:21:52,113 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:21:52,113 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:21:52,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:21:52,114 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:21:52,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:21:52,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:21:52,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:21:52,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:21:52,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:21:52,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:21:52,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:21:52,116 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:21:52,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:21:52,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:21:52,117 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:21:52,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:21:52,117 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_d7d32def-6fb6-470d-a2cb-29e0e409f2d7/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d32def-6fb6-470d-a2cb-29e0e409f2d7/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4902106199f526aef443e534fd0d5059549d1a4f [2021-10-13 07:21:52,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:21:52,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:21:52,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:21:52,423 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:21:52,424 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:21:52,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d32def-6fb6-470d-a2cb-29e0e409f2d7/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/pthread-wmm/safe035_pso.opt.i [2021-10-13 07:21:52,502 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d32def-6fb6-470d-a2cb-29e0e409f2d7/bin/utaipan-q2qaUkNPG8/data/aa3235c98/9bda1d519496495da4110cf05dc55dc0/FLAG9e71ac322 [2021-10-13 07:21:53,019 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:21:53,020 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d32def-6fb6-470d-a2cb-29e0e409f2d7/sv-benchmarks/c/pthread-wmm/safe035_pso.opt.i [2021-10-13 07:21:53,041 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d32def-6fb6-470d-a2cb-29e0e409f2d7/bin/utaipan-q2qaUkNPG8/data/aa3235c98/9bda1d519496495da4110cf05dc55dc0/FLAG9e71ac322 [2021-10-13 07:21:53,311 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d32def-6fb6-470d-a2cb-29e0e409f2d7/bin/utaipan-q2qaUkNPG8/data/aa3235c98/9bda1d519496495da4110cf05dc55dc0 [2021-10-13 07:21:53,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:21:53,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:21:53,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:21:53,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:21:53,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:21:53,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:21:53" (1/1) ... [2021-10-13 07:21:53,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56b13d42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:53, skipping insertion in model container [2021-10-13 07:21:53,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:21:53" (1/1) ... [2021-10-13 07:21:53,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:21:53,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:21:53,571 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_d7d32def-6fb6-470d-a2cb-29e0e409f2d7/sv-benchmarks/c/pthread-wmm/safe035_pso.opt.i[949,962] [2021-10-13 07:21:53,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:21:53,735 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:21:53,746 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_d7d32def-6fb6-470d-a2cb-29e0e409f2d7/sv-benchmarks/c/pthread-wmm/safe035_pso.opt.i[949,962] [2021-10-13 07:21:53,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:21:53,812 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:21:53,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:53 WrapperNode [2021-10-13 07:21:53,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:21:53,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:21:53,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:21:53,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:21:53,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:53" (1/1) ... [2021-10-13 07:21:53,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:53" (1/1) ... [2021-10-13 07:21:53,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:21:53,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:21:53,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:21:53,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:21:53,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:53" (1/1) ... [2021-10-13 07:21:53,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:53" (1/1) ... [2021-10-13 07:21:53,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:53" (1/1) ... [2021-10-13 07:21:53,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:53" (1/1) ... [2021-10-13 07:21:53,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:53" (1/1) ... [2021-10-13 07:21:53,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:53" (1/1) ... [2021-10-13 07:21:53,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:53" (1/1) ... [2021-10-13 07:21:53,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:21:53,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:21:53,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:21:53,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:21:53,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:53" (1/1) ... [2021-10-13 07:21:53,904 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:21:53,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d32def-6fb6-470d-a2cb-29e0e409f2d7/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:21:53,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d32def-6fb6-470d-a2cb-29e0e409f2d7/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:21:53,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d32def-6fb6-470d-a2cb-29e0e409f2d7/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:21:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 07:21:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-13 07:21:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:21:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:21:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-13 07:21:53,994 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-13 07:21:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-13 07:21:53,995 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-13 07:21:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-13 07:21:53,995 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-13 07:21:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:21:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-13 07:21:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:21:53,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:21:53,997 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 07:21:54,409 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:21:54,411 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-13 07:21:54,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:21:54 BoogieIcfgContainer [2021-10-13 07:21:54,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:21:54,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:21:54,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:21:54,419 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:21:54,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:21:53" (1/3) ... [2021-10-13 07:21:54,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7398c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:21:54, skipping insertion in model container [2021-10-13 07:21:54,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:53" (2/3) ... [2021-10-13 07:21:54,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7398c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:21:54, skipping insertion in model container [2021-10-13 07:21:54,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:21:54" (3/3) ... [2021-10-13 07:21:54,423 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_pso.opt.i [2021-10-13 07:21:54,429 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 07:21:54,429 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:21:54,429 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:21:54,429 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 07:21:54,475 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,475 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,475 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,475 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,476 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,476 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,477 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,478 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,478 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,478 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,479 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,480 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,482 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,482 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,490 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,490 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,490 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,491 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,491 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,491 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,491 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,492 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,492 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,493 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,493 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,493 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,497 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,498 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,498 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,498 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,507 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,507 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,531 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,531 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,535 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,536 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,536 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,537 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:21:54,540 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-13 07:21:54,621 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:21:54,631 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, mConcurrency=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 [2021-10-13 07:21:54,632 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-13 07:21:54,659 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-13 07:21:54,673 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 84 transitions, 183 flow [2021-10-13 07:21:54,676 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 84 transitions, 183 flow [2021-10-13 07:21:54,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 183 flow [2021-10-13 07:21:54,725 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2021-10-13 07:21:54,726 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-13 07:21:54,735 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-10-13 07:21:54,737 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2021-10-13 07:21:57,765 INFO L131 LiptonReduction]: Checked pairs total: 2829 [2021-10-13 07:21:57,765 INFO L133 LiptonReduction]: Total number of compositions: 71 [2021-10-13 07:21:57,773 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2021-10-13 07:21:57,804 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 298 states, 297 states have (on average 3.1245791245791246) internal successors, (928), 297 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:57,808 INFO L276 IsEmpty]: Start isEmpty. Operand has 298 states, 297 states have (on average 3.1245791245791246) internal successors, (928), 297 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:57,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 07:21:57,814 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:57,814 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:21:57,815 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 07:21:57,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:57,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1803148731, now seen corresponding path program 1 times [2021-10-13 07:21:57,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:21:57,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668025316] [2021-10-13 07:21:57,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:57,831 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:21:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:58,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:58,012 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:21:58,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668025316] [2021-10-13 07:21:58,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668025316] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:21:58,014 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:21:58,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:21:58,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076783967] [2021-10-13 07:21:58,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:21:58,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:21:58,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:21:58,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:21:58,036 INFO L87 Difference]: Start difference. First operand has 298 states, 297 states have (on average 3.1245791245791246) internal successors, (928), 297 states have internal predecessors, (928), 0 states have call successors, (0), 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 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:58,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:58,064 INFO L93 Difference]: Finished difference Result 298 states and 864 transitions. [2021-10-13 07:21:58,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:21:58,065 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2021-10-13 07:21:58,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:58,079 INFO L225 Difference]: With dead ends: 298 [2021-10-13 07:21:58,080 INFO L226 Difference]: Without dead ends: 298 [2021-10-13 07:21:58,081 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:21:58,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-10-13 07:21:58,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2021-10-13 07:21:58,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 297 states have (on average 2.909090909090909) internal successors, (864), 297 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:58,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2021-10-13 07:21:58,158 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2021-10-13 07:21:58,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:58,159 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2021-10-13 07:21:58,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:58,159 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2021-10-13 07:21:58,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:21:58,161 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:58,161 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:21:58,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:21:58,161 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 07:21:58,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:58,162 INFO L82 PathProgramCache]: Analyzing trace with hash 63027028, now seen corresponding path program 1 times [2021-10-13 07:21:58,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:21:58,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404966412] [2021-10-13 07:21:58,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:58,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:21:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:58,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:58,392 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:21:58,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404966412] [2021-10-13 07:21:58,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404966412] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:21:58,393 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:21:58,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:21:58,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380806731] [2021-10-13 07:21:58,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:21:58,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:21:58,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:21:58,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:21:58,406 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:58,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:58,478 INFO L93 Difference]: Finished difference Result 552 states and 1504 transitions. [2021-10-13 07:21:58,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:21:58,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-13 07:21:58,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:58,484 INFO L225 Difference]: With dead ends: 552 [2021-10-13 07:21:58,484 INFO L226 Difference]: Without dead ends: 382 [2021-10-13 07:21:58,485 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:21:58,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-10-13 07:21:58,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 298. [2021-10-13 07:21:58,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 297 states have (on average 2.6666666666666665) internal successors, (792), 297 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:58,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 792 transitions. [2021-10-13 07:21:58,520 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 792 transitions. Word has length 9 [2021-10-13 07:21:58,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:58,521 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 792 transitions. [2021-10-13 07:21:58,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:58,521 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 792 transitions. [2021-10-13 07:21:58,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 07:21:58,523 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:58,523 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:21:58,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:21:58,524 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 07:21:58,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:58,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1953790643, now seen corresponding path program 1 times [2021-10-13 07:21:58,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:21:58,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607132532] [2021-10-13 07:21:58,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:58,525 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:21:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:58,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:58,661 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:21:58,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607132532] [2021-10-13 07:21:58,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607132532] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:21:58,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:21:58,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:21:58,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171619004] [2021-10-13 07:21:58,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:21:58,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:21:58,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:21:58,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:21:58,665 INFO L87 Difference]: Start difference. First operand 298 states and 792 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2021-10-13 07:21:58,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:58,716 INFO L93 Difference]: Finished difference Result 338 states and 836 transitions. [2021-10-13 07:21:58,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:21:58,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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 [2021-10-13 07:21:58,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:58,722 INFO L225 Difference]: With dead ends: 338 [2021-10-13 07:21:58,722 INFO L226 Difference]: Without dead ends: 222 [2021-10-13 07:21:58,723 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 34.2ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:21:58,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-10-13 07:21:58,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 182. [2021-10-13 07:21:58,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.585635359116022) internal successors, (468), 181 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:58,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 468 transitions. [2021-10-13 07:21:58,750 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 468 transitions. Word has length 10 [2021-10-13 07:21:58,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:58,751 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 468 transitions. [2021-10-13 07:21:58,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2021-10-13 07:21:58,751 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 468 transitions. [2021-10-13 07:21:58,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 07:21:58,758 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:58,758 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:21:58,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 07:21:58,759 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 07:21:58,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:58,760 INFO L82 PathProgramCache]: Analyzing trace with hash -298085546, now seen corresponding path program 1 times [2021-10-13 07:21:58,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:21:58,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180341963] [2021-10-13 07:21:58,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:58,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:21:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:58,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:58,871 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:21:58,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180341963] [2021-10-13 07:21:58,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180341963] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:21:58,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:21:58,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:21:58,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143553403] [2021-10-13 07:21:58,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:21:58,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:21:58,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:21:58,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:21:58,878 INFO L87 Difference]: Start difference. First operand 182 states and 468 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 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) [2021-10-13 07:21:58,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:58,889 INFO L93 Difference]: Finished difference Result 146 states and 331 transitions. [2021-10-13 07:21:58,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:21:58,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 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 [2021-10-13 07:21:58,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:58,891 INFO L225 Difference]: With dead ends: 146 [2021-10-13 07:21:58,895 INFO L226 Difference]: Without dead ends: 146 [2021-10-13 07:21:58,896 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:21:58,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-10-13 07:21:58,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-10-13 07:21:58,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 2.282758620689655) internal successors, (331), 145 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:58,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 331 transitions. [2021-10-13 07:21:58,902 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 331 transitions. Word has length 12 [2021-10-13 07:21:58,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:58,902 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 331 transitions. [2021-10-13 07:21:58,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 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) [2021-10-13 07:21:58,903 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 331 transitions. [2021-10-13 07:21:58,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 07:21:58,906 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:58,906 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:21:58,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 07:21:58,906 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 07:21:58,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:58,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1857293390, now seen corresponding path program 1 times [2021-10-13 07:21:58,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:21:58,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462272790] [2021-10-13 07:21:58,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:58,909 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:21:58,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:58,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:58,984 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:21:58,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462272790] [2021-10-13 07:21:58,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462272790] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:21:58,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:21:58,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:21:58,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205109980] [2021-10-13 07:21:58,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:21:58,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:21:58,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:21:58,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:21:58,986 INFO L87 Difference]: Start difference. First operand 146 states and 331 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:59,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:59,001 INFO L93 Difference]: Finished difference Result 101 states and 200 transitions. [2021-10-13 07:21:59,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:21:59,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 07:21:59,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:59,002 INFO L225 Difference]: With dead ends: 101 [2021-10-13 07:21:59,003 INFO L226 Difference]: Without dead ends: 101 [2021-10-13 07:21:59,003 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:21:59,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-10-13 07:21:59,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2021-10-13 07:21:59,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.9791666666666667) internal successors, (190), 96 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:59,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 190 transitions. [2021-10-13 07:21:59,007 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 190 transitions. Word has length 13 [2021-10-13 07:21:59,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:59,008 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 190 transitions. [2021-10-13 07:21:59,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:59,008 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 190 transitions. [2021-10-13 07:21:59,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 07:21:59,009 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:59,009 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:21:59,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 07:21:59,010 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 07:21:59,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:59,010 INFO L82 PathProgramCache]: Analyzing trace with hash 663717008, now seen corresponding path program 1 times [2021-10-13 07:21:59,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:21:59,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784895180] [2021-10-13 07:21:59,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:59,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:21:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:59,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:59,093 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:21:59,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784895180] [2021-10-13 07:21:59,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784895180] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:21:59,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:21:59,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:21:59,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317654821] [2021-10-13 07:21:59,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:21:59,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:21:59,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:21:59,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:21:59,099 INFO L87 Difference]: Start difference. First operand 97 states and 190 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 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) [2021-10-13 07:21:59,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:59,125 INFO L93 Difference]: Finished difference Result 77 states and 151 transitions. [2021-10-13 07:21:59,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:21:59,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 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 [2021-10-13 07:21:59,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:59,126 INFO L225 Difference]: With dead ends: 77 [2021-10-13 07:21:59,126 INFO L226 Difference]: Without dead ends: 69 [2021-10-13 07:21:59,127 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:21:59,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-10-13 07:21:59,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2021-10-13 07:21:59,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.984375) internal successors, (127), 64 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:59,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 127 transitions. [2021-10-13 07:21:59,130 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 127 transitions. Word has length 15 [2021-10-13 07:21:59,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:59,130 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 127 transitions. [2021-10-13 07:21:59,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 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) [2021-10-13 07:21:59,131 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 127 transitions. [2021-10-13 07:21:59,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 07:21:59,132 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:59,132 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:21:59,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 07:21:59,132 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 07:21:59,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:59,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1849766004, now seen corresponding path program 1 times [2021-10-13 07:21:59,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:21:59,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703735354] [2021-10-13 07:21:59,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:59,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:21:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:59,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:59,223 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:21:59,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703735354] [2021-10-13 07:21:59,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703735354] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:21:59,224 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:21:59,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:21:59,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860290526] [2021-10-13 07:21:59,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:21:59,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:21:59,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:21:59,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:21:59,227 INFO L87 Difference]: Start difference. First operand 65 states and 127 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:59,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:59,248 INFO L93 Difference]: Finished difference Result 64 states and 126 transitions. [2021-10-13 07:21:59,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:21:59,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2021-10-13 07:21:59,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:59,251 INFO L225 Difference]: With dead ends: 64 [2021-10-13 07:21:59,251 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:21:59,251 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:21:59,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:21:59,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:21:59,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:59,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:21:59,255 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-10-13 07:21:59,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:59,255 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:21:59,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:59,256 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:21:59,256 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:21:59,258 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:21:59,259 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 07:21:59,259 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 07:21:59,259 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-13 07:21:59,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 07:21:59,263 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 07:21:59,264 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:21:59,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:21:59 BasicIcfg [2021-10-13 07:21:59,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:21:59,267 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:21:59,267 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:21:59,267 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:21:59,268 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:21:54" (3/4) ... [2021-10-13 07:21:59,270 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:21:59,277 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-10-13 07:21:59,277 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-10-13 07:21:59,278 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-10-13 07:21:59,284 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-13 07:21:59,285 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 07:21:59,285 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:21:59,285 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:21:59,338 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d32def-6fb6-470d-a2cb-29e0e409f2d7/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:21:59,339 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:21:59,340 INFO L168 Benchmark]: Toolchain (without parser) took 6024.28 ms. Allocated memory was 96.5 MB in the beginning and 157.3 MB in the end (delta: 60.8 MB). Free memory was 55.2 MB in the beginning and 122.2 MB in the end (delta: -67.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:21:59,342 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 96.5 MB. Free memory is still 73.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:21:59,342 INFO L168 Benchmark]: CACSL2BoogieTranslator took 493.05 ms. Allocated memory is still 96.5 MB. Free memory was 55.1 MB in the beginning and 61.5 MB in the end (delta: -6.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:21:59,343 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.80 ms. Allocated memory is still 96.5 MB. Free memory was 61.5 MB in the beginning and 59.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:21:59,343 INFO L168 Benchmark]: Boogie Preprocessor took 24.45 ms. Allocated memory is still 96.5 MB. Free memory was 59.5 MB in the beginning and 58.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:21:59,344 INFO L168 Benchmark]: RCFGBuilder took 532.34 ms. Allocated memory is still 96.5 MB. Free memory was 58.2 MB in the beginning and 46.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:21:59,344 INFO L168 Benchmark]: TraceAbstraction took 4850.19 ms. Allocated memory was 96.5 MB in the beginning and 157.3 MB in the end (delta: 60.8 MB). Free memory was 45.6 MB in the beginning and 125.4 MB in the end (delta: -79.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:21:59,344 INFO L168 Benchmark]: Witness Printer took 71.84 ms. Allocated memory is still 157.3 MB. Free memory was 125.4 MB in the beginning and 122.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:21:59,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 96.5 MB. Free memory is still 73.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 493.05 ms. Allocated memory is still 96.5 MB. Free memory was 55.1 MB in the beginning and 61.5 MB in the end (delta: -6.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.80 ms. Allocated memory is still 96.5 MB. Free memory was 61.5 MB in the beginning and 59.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.45 ms. Allocated memory is still 96.5 MB. Free memory was 59.5 MB in the beginning and 58.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 532.34 ms. Allocated memory is still 96.5 MB. Free memory was 58.2 MB in the beginning and 46.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4850.19 ms. Allocated memory was 96.5 MB in the beginning and 157.3 MB in the end (delta: 60.8 MB). Free memory was 45.6 MB in the beginning and 125.4 MB in the end (delta: -79.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 71.84 ms. Allocated memory is still 157.3 MB. Free memory was 125.4 MB in the beginning and 122.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3089.8ms, 92 PlacesBefore, 32 PlacesAfterwards, 84 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 71 TotalNumberOfCompositions, 2829 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1662, positive: 1568, positive conditional: 0, positive unconditional: 1568, negative: 94, negative conditional: 0, negative unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 995, positive: 960, positive conditional: 0, positive unconditional: 960, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 995, positive: 952, positive conditional: 0, positive unconditional: 952, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 128, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1662, positive: 608, positive conditional: 0, positive unconditional: 608, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 995, unknown conditional: 0, unknown unconditional: 995] , Statistics on independence cache: Total cache size (in pairs): 92, Positive cache size: 81, Positive conditional cache size: 0, Positive unconditional cache size: 81, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4643.7ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 23.6ms, AutomataDifference: 303.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3172.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 139 SDtfs, 119 SDslu, 162 SDs, 0 SdLazy, 68 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 83.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 86.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 142.3ms AutomataMinimizationTime, 7 MinimizatonAttempts, 132 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 23.1ms SsaConstructionTime, 244.2ms SatisfiabilityAnalysisTime, 515.4ms InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 299 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-13 07:21:59,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d32def-6fb6-470d-a2cb-29e0e409f2d7/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...