./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe019_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c52a33-c6b0-4b7a-b912-bca82d6aa7bc/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c52a33-c6b0-4b7a-b912-bca82d6aa7bc/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c52a33-c6b0-4b7a-b912-bca82d6aa7bc/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c52a33-c6b0-4b7a-b912-bca82d6aa7bc/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe019_pso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c52a33-c6b0-4b7a-b912-bca82d6aa7bc/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c52a33-c6b0-4b7a-b912-bca82d6aa7bc/bin/utaipan-WLngWcDbfI --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 f43935362c1335f4f9734ddabaed6e8642550761 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:25:09,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:25:09,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:25:09,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:25:09,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:25:09,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:25:09,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:25:09,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:25:09,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:25:09,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:25:09,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:25:09,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:25:09,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:25:09,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:25:09,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:25:09,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:25:09,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:25:09,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:25:09,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:25:09,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:25:09,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:25:09,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:25:09,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:25:09,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:25:09,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:25:09,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:25:09,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:25:09,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:25:09,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:25:09,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:25:09,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:25:09,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:25:09,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:25:09,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:25:09,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:25:09,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:25:09,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:25:09,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:25:09,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:25:09,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:25:09,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:25:09,936 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c52a33-c6b0-4b7a-b912-bca82d6aa7bc/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:25:09,978 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:25:09,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:25:09,980 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:25:09,981 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:25:09,981 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:25:09,981 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:25:09,982 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:25:09,982 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:25:09,988 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:25:09,988 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:25:09,990 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:25:09,990 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:25:09,990 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:25:09,990 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:25:09,991 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:25:09,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:25:09,992 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:25:09,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:25:09,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:25:09,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:25:09,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:25:09,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:25:09,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:25:09,993 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:25:09,994 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:25:09,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:25:09,994 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:25:09,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:25:09,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:25:09,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:25:09,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:09,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:25:09,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:25:09,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:25:09,998 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:25:09,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:25:09,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:25:09,998 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:25:09,999 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:25:09,999 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_23c52a33-c6b0-4b7a-b912-bca82d6aa7bc/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c52a33-c6b0-4b7a-b912-bca82d6aa7bc/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f43935362c1335f4f9734ddabaed6e8642550761 [2021-10-11 02:25:10,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:25:10,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:25:10,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:25:10,345 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:25:10,346 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:25:10,347 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c52a33-c6b0-4b7a-b912-bca82d6aa7bc/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/pthread-wmm/safe019_pso.opt.i [2021-10-11 02:25:10,446 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c52a33-c6b0-4b7a-b912-bca82d6aa7bc/bin/utaipan-WLngWcDbfI/data/deecbd34a/bbff502139974d9eb269f1558e9a8de0/FLAGcfbffe602 [2021-10-11 02:25:11,037 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:25:11,037 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c52a33-c6b0-4b7a-b912-bca82d6aa7bc/sv-benchmarks/c/pthread-wmm/safe019_pso.opt.i [2021-10-11 02:25:11,074 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c52a33-c6b0-4b7a-b912-bca82d6aa7bc/bin/utaipan-WLngWcDbfI/data/deecbd34a/bbff502139974d9eb269f1558e9a8de0/FLAGcfbffe602 [2021-10-11 02:25:11,316 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c52a33-c6b0-4b7a-b912-bca82d6aa7bc/bin/utaipan-WLngWcDbfI/data/deecbd34a/bbff502139974d9eb269f1558e9a8de0 [2021-10-11 02:25:11,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:25:11,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:25:11,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:11,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:25:11,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:25:11,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:11" (1/1) ... [2021-10-11 02:25:11,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@195126ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:11, skipping insertion in model container [2021-10-11 02:25:11,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:11" (1/1) ... [2021-10-11 02:25:11,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:25:11,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:25:11,633 WARN L226 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_23c52a33-c6b0-4b7a-b912-bca82d6aa7bc/sv-benchmarks/c/pthread-wmm/safe019_pso.opt.i[949,962] [2021-10-11 02:25:11,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:11,931 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:25:11,946 WARN L226 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_23c52a33-c6b0-4b7a-b912-bca82d6aa7bc/sv-benchmarks/c/pthread-wmm/safe019_pso.opt.i[949,962] [2021-10-11 02:25:12,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:12,101 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:25:12,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:12 WrapperNode [2021-10-11 02:25:12,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:12,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:12,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:25:12,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:25:12,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:12" (1/1) ... [2021-10-11 02:25:12,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:12" (1/1) ... [2021-10-11 02:25:12,185 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:12,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:25:12,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:25:12,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:25:12,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:12" (1/1) ... [2021-10-11 02:25:12,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:12" (1/1) ... [2021-10-11 02:25:12,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:12" (1/1) ... [2021-10-11 02:25:12,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:12" (1/1) ... [2021-10-11 02:25:12,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:12" (1/1) ... [2021-10-11 02:25:12,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:12" (1/1) ... [2021-10-11 02:25:12,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:12" (1/1) ... [2021-10-11 02:25:12,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:25:12,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:25:12,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:25:12,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:25:12,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:12" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c52a33-c6b0-4b7a-b912-bca82d6aa7bc/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:25:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-11 02:25:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:25:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:25:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-11 02:25:12,350 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-11 02:25:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-11 02:25:12,352 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-11 02:25:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-11 02:25:12,353 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-11 02:25:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-10-11 02:25:12,353 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-10-11 02:25:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:25:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-11 02:25:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:25:12,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:25:12,356 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-11 02:25:12,995 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:25:12,995 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-11 02:25:12,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:12 BoogieIcfgContainer [2021-10-11 02:25:12,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:25:13,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:25:13,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:25:13,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:25:13,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:25:11" (1/3) ... [2021-10-11 02:25:13,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@216132ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:13, skipping insertion in model container [2021-10-11 02:25:13,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:12" (2/3) ... [2021-10-11 02:25:13,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@216132ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:13, skipping insertion in model container [2021-10-11 02:25:13,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:12" (3/3) ... [2021-10-11 02:25:13,008 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.opt.i [2021-10-11 02:25:13,023 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-11 02:25:13,023 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:25:13,026 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:25:13,027 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-11 02:25:13,073 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,073 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,073 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,073 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,074 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,074 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,076 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,076 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,076 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,076 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,077 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,077 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,078 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,078 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,078 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,078 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,079 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,079 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,079 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,079 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,080 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,080 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,080 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,080 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,081 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,081 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,082 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,082 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,083 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,083 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,084 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,084 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,084 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,084 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,084 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,087 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,087 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,088 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,088 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,092 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,093 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,093 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,093 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,095 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,096 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,096 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,096 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,098 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,098 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,099 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,099 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:13,100 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-11 02:25:13,112 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-11 02:25:13,131 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:25:13,132 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:25:13,132 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:25:13,132 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:25:13,132 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:25:13,132 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:25:13,133 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:25:13,133 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:25:13,145 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-11 02:25:13,147 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2021-10-11 02:25:13,150 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 86 transitions, 192 flow [2021-10-11 02:25:13,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2021-10-11 02:25:13,197 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-10-11 02:25:13,202 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-11 02:25:13,209 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-10-11 02:25:13,216 INFO L116 LiptonReduction]: Number of co-enabled transitions 1866 [2021-10-11 02:25:16,541 WARN L197 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-10-11 02:25:16,644 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-10-11 02:25:16,915 WARN L197 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-10-11 02:25:17,031 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-10-11 02:25:17,342 INFO L131 LiptonReduction]: Checked pairs total: 2978 [2021-10-11 02:25:17,343 INFO L133 LiptonReduction]: Total number of compositions: 68 [2021-10-11 02:25:17,349 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2021-10-11 02:25:17,421 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2021-10-11 02:25:17,423 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2021-10-11 02:25:17,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:25:17,444 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:17,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:17,445 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:17,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:17,456 INFO L82 PathProgramCache]: Analyzing trace with hash -36259415, now seen corresponding path program 1 times [2021-10-11 02:25:17,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:17,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224452164] [2021-10-11 02:25:17,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:17,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:17,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224452164] [2021-10-11 02:25:17,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:17,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:25:17,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743301496] [2021-10-11 02:25:17,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:17,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:17,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:17,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:17,834 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2021-10-11 02:25:17,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:17,911 INFO L93 Difference]: Finished difference Result 1072 states and 3535 transitions. [2021-10-11 02:25:17,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:17,912 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2021-10-11 02:25:17,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:17,945 INFO L225 Difference]: With dead ends: 1072 [2021-10-11 02:25:17,946 INFO L226 Difference]: Without dead ends: 745 [2021-10-11 02:25:17,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:17,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2021-10-11 02:25:18,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 679. [2021-10-11 02:25:18,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2021-10-11 02:25:18,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 2220 transitions. [2021-10-11 02:25:18,051 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 2220 transitions. Word has length 10 [2021-10-11 02:25:18,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:18,052 INFO L481 AbstractCegarLoop]: Abstraction has 679 states and 2220 transitions. [2021-10-11 02:25:18,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:18,052 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 2220 transitions. [2021-10-11 02:25:18,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:25:18,055 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:18,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:18,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:25:18,056 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:18,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:18,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1165014530, now seen corresponding path program 1 times [2021-10-11 02:25:18,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:18,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349185503] [2021-10-11 02:25:18,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:18,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:18,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349185503] [2021-10-11 02:25:18,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:18,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:25:18,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981553097] [2021-10-11 02:25:18,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:25:18,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:18,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:25:18,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:25:18,204 INFO L87 Difference]: Start difference. First operand 679 states and 2220 transitions. Second operand 4 states. [2021-10-11 02:25:18,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:18,232 INFO L93 Difference]: Finished difference Result 700 states and 2225 transitions. [2021-10-11 02:25:18,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:25:18,233 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-10-11 02:25:18,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:18,240 INFO L225 Difference]: With dead ends: 700 [2021-10-11 02:25:18,241 INFO L226 Difference]: Without dead ends: 700 [2021-10-11 02:25:18,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:25:18,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2021-10-11 02:25:18,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 652. [2021-10-11 02:25:18,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2021-10-11 02:25:18,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 2109 transitions. [2021-10-11 02:25:18,276 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 2109 transitions. Word has length 11 [2021-10-11 02:25:18,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:18,277 INFO L481 AbstractCegarLoop]: Abstraction has 652 states and 2109 transitions. [2021-10-11 02:25:18,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:25:18,277 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 2109 transitions. [2021-10-11 02:25:18,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:25:18,280 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:18,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:18,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:25:18,280 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:18,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:18,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1124043458, now seen corresponding path program 1 times [2021-10-11 02:25:18,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:18,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226375415] [2021-10-11 02:25:18,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:18,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:18,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226375415] [2021-10-11 02:25:18,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:18,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:25:18,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958460345] [2021-10-11 02:25:18,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:25:18,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:18,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:25:18,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:25:18,363 INFO L87 Difference]: Start difference. First operand 652 states and 2109 transitions. Second operand 4 states. [2021-10-11 02:25:18,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:18,395 INFO L93 Difference]: Finished difference Result 664 states and 2099 transitions. [2021-10-11 02:25:18,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:25:18,396 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-10-11 02:25:18,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:18,402 INFO L225 Difference]: With dead ends: 664 [2021-10-11 02:25:18,403 INFO L226 Difference]: Without dead ends: 664 [2021-10-11 02:25:18,403 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:25:18,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2021-10-11 02:25:18,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 604. [2021-10-11 02:25:18,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2021-10-11 02:25:18,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 1939 transitions. [2021-10-11 02:25:18,436 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 1939 transitions. Word has length 11 [2021-10-11 02:25:18,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:18,436 INFO L481 AbstractCegarLoop]: Abstraction has 604 states and 1939 transitions. [2021-10-11 02:25:18,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:25:18,436 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 1939 transitions. [2021-10-11 02:25:18,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:25:18,441 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:18,442 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:18,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:25:18,445 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:18,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:18,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1755710469, now seen corresponding path program 1 times [2021-10-11 02:25:18,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:18,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66804205] [2021-10-11 02:25:18,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:18,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:18,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66804205] [2021-10-11 02:25:18,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:18,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:18,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666250943] [2021-10-11 02:25:18,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:25:18,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:18,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:25:18,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:18,555 INFO L87 Difference]: Start difference. First operand 604 states and 1939 transitions. Second operand 5 states. [2021-10-11 02:25:18,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:18,602 INFO L93 Difference]: Finished difference Result 856 states and 2659 transitions. [2021-10-11 02:25:18,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:25:18,603 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-10-11 02:25:18,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:18,607 INFO L225 Difference]: With dead ends: 856 [2021-10-11 02:25:18,608 INFO L226 Difference]: Without dead ends: 472 [2021-10-11 02:25:18,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:25:18,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-10-11 02:25:18,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 436. [2021-10-11 02:25:18,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 436 states. [2021-10-11 02:25:18,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 1375 transitions. [2021-10-11 02:25:18,627 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 1375 transitions. Word has length 12 [2021-10-11 02:25:18,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:18,627 INFO L481 AbstractCegarLoop]: Abstraction has 436 states and 1375 transitions. [2021-10-11 02:25:18,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:25:18,628 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 1375 transitions. [2021-10-11 02:25:18,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:25:18,628 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:18,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:18,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:25:18,629 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:18,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:18,631 INFO L82 PathProgramCache]: Analyzing trace with hash -485610361, now seen corresponding path program 2 times [2021-10-11 02:25:18,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:18,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781181400] [2021-10-11 02:25:18,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:18,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:18,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781181400] [2021-10-11 02:25:18,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:18,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:25:18,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213958804] [2021-10-11 02:25:18,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:18,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:18,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:18,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:18,725 INFO L87 Difference]: Start difference. First operand 436 states and 1375 transitions. Second operand 3 states. [2021-10-11 02:25:18,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:18,734 INFO L93 Difference]: Finished difference Result 418 states and 1306 transitions. [2021-10-11 02:25:18,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:18,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2021-10-11 02:25:18,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:18,738 INFO L225 Difference]: With dead ends: 418 [2021-10-11 02:25:18,739 INFO L226 Difference]: Without dead ends: 418 [2021-10-11 02:25:18,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:18,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2021-10-11 02:25:18,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2021-10-11 02:25:18,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2021-10-11 02:25:18,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 1306 transitions. [2021-10-11 02:25:18,756 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 1306 transitions. Word has length 12 [2021-10-11 02:25:18,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:18,757 INFO L481 AbstractCegarLoop]: Abstraction has 418 states and 1306 transitions. [2021-10-11 02:25:18,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:18,757 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 1306 transitions. [2021-10-11 02:25:18,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:25:18,758 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:18,758 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:18,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:25:18,759 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:18,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:18,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1949399229, now seen corresponding path program 1 times [2021-10-11 02:25:18,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:18,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834312789] [2021-10-11 02:25:18,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:18,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:18,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:18,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834312789] [2021-10-11 02:25:18,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:18,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:18,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132756128] [2021-10-11 02:25:18,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:25:18,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:18,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:25:18,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:25:18,828 INFO L87 Difference]: Start difference. First operand 418 states and 1306 transitions. Second operand 4 states. [2021-10-11 02:25:18,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:18,859 INFO L93 Difference]: Finished difference Result 532 states and 1601 transitions. [2021-10-11 02:25:18,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:25:18,860 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2021-10-11 02:25:18,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:18,864 INFO L225 Difference]: With dead ends: 532 [2021-10-11 02:25:18,865 INFO L226 Difference]: Without dead ends: 412 [2021-10-11 02:25:18,865 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:25:18,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-10-11 02:25:18,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 376. [2021-10-11 02:25:18,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2021-10-11 02:25:18,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 1137 transitions. [2021-10-11 02:25:18,881 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 1137 transitions. Word has length 13 [2021-10-11 02:25:18,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:18,882 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 1137 transitions. [2021-10-11 02:25:18,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:25:18,882 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 1137 transitions. [2021-10-11 02:25:18,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:25:18,884 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:18,884 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:18,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:25:18,884 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:18,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:18,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1949381931, now seen corresponding path program 1 times [2021-10-11 02:25:18,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:18,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026383302] [2021-10-11 02:25:18,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:18,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:18,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:18,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026383302] [2021-10-11 02:25:18,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:18,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:25:18,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460015249] [2021-10-11 02:25:18,951 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:25:18,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:18,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:25:18,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:25:18,952 INFO L87 Difference]: Start difference. First operand 376 states and 1137 transitions. Second operand 4 states. [2021-10-11 02:25:18,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:18,973 INFO L93 Difference]: Finished difference Result 526 states and 1530 transitions. [2021-10-11 02:25:18,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:25:18,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2021-10-11 02:25:18,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:18,976 INFO L225 Difference]: With dead ends: 526 [2021-10-11 02:25:18,976 INFO L226 Difference]: Without dead ends: 274 [2021-10-11 02:25:18,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:18,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-10-11 02:25:18,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2021-10-11 02:25:18,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2021-10-11 02:25:18,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 775 transitions. [2021-10-11 02:25:18,987 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 775 transitions. Word has length 13 [2021-10-11 02:25:18,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:18,987 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 775 transitions. [2021-10-11 02:25:18,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:25:18,987 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 775 transitions. [2021-10-11 02:25:18,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:25:18,988 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:18,988 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:18,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 02:25:18,988 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:18,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:18,989 INFO L82 PathProgramCache]: Analyzing trace with hash 2123867267, now seen corresponding path program 1 times [2021-10-11 02:25:18,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:18,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286472732] [2021-10-11 02:25:18,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:19,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:19,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286472732] [2021-10-11 02:25:19,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:19,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:25:19,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064249876] [2021-10-11 02:25:19,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:25:19,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:19,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:25:19,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:25:19,042 INFO L87 Difference]: Start difference. First operand 274 states and 775 transitions. Second operand 4 states. [2021-10-11 02:25:19,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:19,076 INFO L93 Difference]: Finished difference Result 345 states and 911 transitions. [2021-10-11 02:25:19,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:25:19,077 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2021-10-11 02:25:19,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:19,079 INFO L225 Difference]: With dead ends: 345 [2021-10-11 02:25:19,079 INFO L226 Difference]: Without dead ends: 252 [2021-10-11 02:25:19,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:19,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-10-11 02:25:19,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2021-10-11 02:25:19,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2021-10-11 02:25:19,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 675 transitions. [2021-10-11 02:25:19,088 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 675 transitions. Word has length 14 [2021-10-11 02:25:19,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:19,089 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 675 transitions. [2021-10-11 02:25:19,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:25:19,089 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 675 transitions. [2021-10-11 02:25:19,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 02:25:19,090 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:19,090 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:19,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 02:25:19,090 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:19,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:19,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1422134941, now seen corresponding path program 1 times [2021-10-11 02:25:19,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:19,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388490635] [2021-10-11 02:25:19,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:19,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:19,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388490635] [2021-10-11 02:25:19,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:19,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:19,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711657909] [2021-10-11 02:25:19,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:25:19,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:19,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:25:19,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:19,144 INFO L87 Difference]: Start difference. First operand 252 states and 675 transitions. Second operand 5 states. [2021-10-11 02:25:19,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:19,188 INFO L93 Difference]: Finished difference Result 278 states and 685 transitions. [2021-10-11 02:25:19,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:25:19,188 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2021-10-11 02:25:19,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:19,190 INFO L225 Difference]: With dead ends: 278 [2021-10-11 02:25:19,190 INFO L226 Difference]: Without dead ends: 203 [2021-10-11 02:25:19,191 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:25:19,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-10-11 02:25:19,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2021-10-11 02:25:19,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2021-10-11 02:25:19,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 492 transitions. [2021-10-11 02:25:19,199 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 492 transitions. Word has length 15 [2021-10-11 02:25:19,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:19,199 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 492 transitions. [2021-10-11 02:25:19,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:25:19,199 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 492 transitions. [2021-10-11 02:25:19,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:25:19,200 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:19,200 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:19,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 02:25:19,201 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:19,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:19,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1099628631, now seen corresponding path program 1 times [2021-10-11 02:25:19,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:19,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918373739] [2021-10-11 02:25:19,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:19,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:19,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918373739] [2021-10-11 02:25:19,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:19,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:25:19,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366397938] [2021-10-11 02:25:19,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:25:19,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:19,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:25:19,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:25:19,283 INFO L87 Difference]: Start difference. First operand 203 states and 492 transitions. Second operand 6 states. [2021-10-11 02:25:19,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:19,339 INFO L93 Difference]: Finished difference Result 200 states and 461 transitions. [2021-10-11 02:25:19,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:25:19,339 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2021-10-11 02:25:19,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:19,341 INFO L225 Difference]: With dead ends: 200 [2021-10-11 02:25:19,341 INFO L226 Difference]: Without dead ends: 162 [2021-10-11 02:25:19,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:25:19,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-10-11 02:25:19,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2021-10-11 02:25:19,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2021-10-11 02:25:19,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 375 transitions. [2021-10-11 02:25:19,347 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 375 transitions. Word has length 16 [2021-10-11 02:25:19,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:19,347 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 375 transitions. [2021-10-11 02:25:19,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:25:19,347 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 375 transitions. [2021-10-11 02:25:19,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 02:25:19,348 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:19,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:19,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 02:25:19,348 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:19,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:19,349 INFO L82 PathProgramCache]: Analyzing trace with hash 554738786, now seen corresponding path program 1 times [2021-10-11 02:25:19,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:19,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173878832] [2021-10-11 02:25:19,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:19,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:19,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173878832] [2021-10-11 02:25:19,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:19,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:25:19,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971675122] [2021-10-11 02:25:19,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:25:19,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:19,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:25:19,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:19,395 INFO L87 Difference]: Start difference. First operand 162 states and 375 transitions. Second operand 5 states. [2021-10-11 02:25:19,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:19,420 INFO L93 Difference]: Finished difference Result 194 states and 439 transitions. [2021-10-11 02:25:19,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:25:19,420 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2021-10-11 02:25:19,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:19,422 INFO L225 Difference]: With dead ends: 194 [2021-10-11 02:25:19,422 INFO L226 Difference]: Without dead ends: 127 [2021-10-11 02:25:19,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:25:19,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-10-11 02:25:19,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2021-10-11 02:25:19,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2021-10-11 02:25:19,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2021-10-11 02:25:19,427 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 18 [2021-10-11 02:25:19,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:19,427 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2021-10-11 02:25:19,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:25:19,427 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2021-10-11 02:25:19,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 02:25:19,428 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:19,428 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:19,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 02:25:19,428 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:19,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:19,429 INFO L82 PathProgramCache]: Analyzing trace with hash -780782352, now seen corresponding path program 2 times [2021-10-11 02:25:19,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:19,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308895967] [2021-10-11 02:25:19,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:19,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:19,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308895967] [2021-10-11 02:25:19,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:19,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:25:19,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980996385] [2021-10-11 02:25:19,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 02:25:19,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:19,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 02:25:19,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:25:19,519 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 7 states. [2021-10-11 02:25:19,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:19,580 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2021-10-11 02:25:19,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:25:19,580 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2021-10-11 02:25:19,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:19,582 INFO L225 Difference]: With dead ends: 120 [2021-10-11 02:25:19,582 INFO L226 Difference]: Without dead ends: 71 [2021-10-11 02:25:19,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:25:19,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-11 02:25:19,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-10-11 02:25:19,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2021-10-11 02:25:19,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2021-10-11 02:25:19,585 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2021-10-11 02:25:19,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:19,585 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2021-10-11 02:25:19,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 02:25:19,585 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2021-10-11 02:25:19,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-11 02:25:19,586 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:19,586 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:19,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-11 02:25:19,586 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:19,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:19,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1285342776, now seen corresponding path program 1 times [2021-10-11 02:25:19,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:19,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822763816] [2021-10-11 02:25:19,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:19,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:19,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822763816] [2021-10-11 02:25:19,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:19,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:19,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109343802] [2021-10-11 02:25:19,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:25:19,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:19,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:25:19,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:25:19,669 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2021-10-11 02:25:19,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:19,689 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2021-10-11 02:25:19,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:25:19,689 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2021-10-11 02:25:19,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:19,689 INFO L225 Difference]: With dead ends: 70 [2021-10-11 02:25:19,690 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:25:19,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:19,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:25:19,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:25:19,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:25:19,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:25:19,693 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2021-10-11 02:25:19,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:19,693 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:25:19,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:25:19,693 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:25:19,693 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:25:19,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-11 02:25:19,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:25:19 BasicIcfg [2021-10-11 02:25:19,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:25:19,697 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:25:19,698 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:25:19,698 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:25:19,698 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:12" (3/4) ... [2021-10-11 02:25:19,702 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:25:19,710 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-10-11 02:25:19,711 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-10-11 02:25:19,711 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-10-11 02:25:19,711 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2021-10-11 02:25:19,719 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-10-11 02:25:19,720 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:25:19,720 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:25:19,720 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:25:19,773 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c52a33-c6b0-4b7a-b912-bca82d6aa7bc/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:25:19,773 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:25:19,774 INFO L168 Benchmark]: Toolchain (without parser) took 8453.06 ms. Allocated memory was 83.9 MB in the beginning and 163.6 MB in the end (delta: 79.7 MB). Free memory was 48.2 MB in the beginning and 65.0 MB in the end (delta: -16.8 MB). Peak memory consumption was 62.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:19,775 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 83.9 MB. Free memory was 54.9 MB in the beginning and 54.9 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:19,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 778.10 ms. Allocated memory is still 83.9 MB. Free memory was 48.1 MB in the beginning and 37.7 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:19,776 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.32 ms. Allocated memory is still 83.9 MB. Free memory was 37.7 MB in the beginning and 35.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:19,776 INFO L168 Benchmark]: Boogie Preprocessor took 61.92 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 35.6 MB in the beginning and 81.1 MB in the end (delta: -45.5 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:19,777 INFO L168 Benchmark]: RCFGBuilder took 749.58 ms. Allocated memory is still 102.8 MB. Free memory was 81.1 MB in the beginning and 57.4 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:19,777 INFO L168 Benchmark]: TraceAbstraction took 6696.26 ms. Allocated memory was 102.8 MB in the beginning and 163.6 MB in the end (delta: 60.8 MB). Free memory was 56.8 MB in the beginning and 68.1 MB in the end (delta: -11.4 MB). Peak memory consumption was 49.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:19,778 INFO L168 Benchmark]: Witness Printer took 76.08 ms. Allocated memory is still 163.6 MB. Free memory was 68.1 MB in the beginning and 65.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:19,780 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 83.9 MB. Free memory was 54.9 MB in the beginning and 54.9 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 778.10 ms. Allocated memory is still 83.9 MB. Free memory was 48.1 MB in the beginning and 37.7 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.32 ms. Allocated memory is still 83.9 MB. Free memory was 37.7 MB in the beginning and 35.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.92 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 35.6 MB in the beginning and 81.1 MB in the end (delta: -45.5 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 749.58 ms. Allocated memory is still 102.8 MB. Free memory was 81.1 MB in the beginning and 57.4 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6696.26 ms. Allocated memory was 102.8 MB in the beginning and 163.6 MB in the end (delta: 60.8 MB). Free memory was 56.8 MB in the beginning and 68.1 MB in the end (delta: -11.4 MB). Peak memory consumption was 49.2 MB. Max. memory is 16.1 GB. * Witness Printer took 76.08 ms. Allocated memory is still 163.6 MB. Free memory was 68.1 MB in the beginning and 65.0 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 1172 VarBasedMoverChecksPositive, 55 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 38 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 75 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.1s, 97 PlacesBefore, 38 PlacesAfterwards, 86 TransitionsBefore, 25 TransitionsAfterwards, 1866 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 2 ChoiceCompositions, 68 TotalNumberOfCompositions, 2978 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.5s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 283 SDtfs, 313 SDslu, 410 SDs, 0 SdLazy, 234 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 248 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 183 NumberOfCodeBlocks, 183 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 10828 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...