./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482a0745-e456-45a6-aaa6-8eaebdde9f02/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482a0745-e456-45a6-aaa6-8eaebdde9f02/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482a0745-e456-45a6-aaa6-8eaebdde9f02/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482a0745-e456-45a6-aaa6-8eaebdde9f02/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482a0745-e456-45a6-aaa6-8eaebdde9f02/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482a0745-e456-45a6-aaa6-8eaebdde9f02/bin/utaipan-aC7eJsxGYH --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 e2cb2ea6991951b6a9c5c1df0de2ac5ff84f75971959d591fa5f258025f94929 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:49:35,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:49:35,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:49:35,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:49:35,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:49:35,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:49:35,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:49:35,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:49:35,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:49:35,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:49:35,918 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:49:35,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:49:35,920 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:49:35,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:49:35,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:49:35,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:49:35,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:49:35,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:49:35,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:49:35,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:49:35,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:49:35,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:49:35,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:49:35,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:49:35,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:49:35,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:49:35,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:49:35,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:49:35,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:49:35,963 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:49:35,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:49:35,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:49:35,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:49:35,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:49:35,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:49:35,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:49:35,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:49:35,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:49:35,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:49:35,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:49:35,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:49:35,973 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482a0745-e456-45a6-aaa6-8eaebdde9f02/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 04:49:36,000 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:49:36,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:49:36,001 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:49:36,001 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:49:36,002 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:49:36,002 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:49:36,002 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:49:36,003 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:49:36,003 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:49:36,003 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:49:36,003 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:49:36,004 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:49:36,004 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:49:36,004 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:49:36,004 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:49:36,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:49:36,005 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:49:36,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:49:36,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:49:36,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:49:36,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:49:36,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:49:36,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:49:36,006 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:49:36,007 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:49:36,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:49:36,007 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:49:36,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:49:36,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:49:36,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:49:36,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:49:36,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:49:36,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:49:36,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:49:36,009 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:49:36,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:49:36,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:49:36,009 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:49:36,009 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:49:36,010 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_482a0745-e456-45a6-aaa6-8eaebdde9f02/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482a0745-e456-45a6-aaa6-8eaebdde9f02/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2cb2ea6991951b6a9c5c1df0de2ac5ff84f75971959d591fa5f258025f94929 [2021-11-03 04:49:36,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:49:36,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:49:36,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:49:36,399 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:49:36,400 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:49:36,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482a0745-e456-45a6-aaa6-8eaebdde9f02/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2021-11-03 04:49:36,499 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482a0745-e456-45a6-aaa6-8eaebdde9f02/bin/utaipan-aC7eJsxGYH/data/a4bc84281/2b8c5e81fe304951af6b44c4bc443ec6/FLAGd025f22ee [2021-11-03 04:49:37,042 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:49:37,043 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482a0745-e456-45a6-aaa6-8eaebdde9f02/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2021-11-03 04:49:37,067 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482a0745-e456-45a6-aaa6-8eaebdde9f02/bin/utaipan-aC7eJsxGYH/data/a4bc84281/2b8c5e81fe304951af6b44c4bc443ec6/FLAGd025f22ee [2021-11-03 04:49:37,341 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482a0745-e456-45a6-aaa6-8eaebdde9f02/bin/utaipan-aC7eJsxGYH/data/a4bc84281/2b8c5e81fe304951af6b44c4bc443ec6 [2021-11-03 04:49:37,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:49:37,345 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:49:37,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:49:37,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:49:37,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:49:37,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:49:37" (1/1) ... [2021-11-03 04:49:37,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@781df590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:37, skipping insertion in model container [2021-11-03 04:49:37,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:49:37" (1/1) ... [2021-11-03 04:49:37,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:49:37,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:49:37,642 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482a0745-e456-45a6-aaa6-8eaebdde9f02/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c[3544,3557] [2021-11-03 04:49:37,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:49:37,662 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:49:37,704 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482a0745-e456-45a6-aaa6-8eaebdde9f02/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c[3544,3557] [2021-11-03 04:49:37,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:49:37,738 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:49:37,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:37 WrapperNode [2021-11-03 04:49:37,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:49:37,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:49:37,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:49:37,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:49:37,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:37" (1/1) ... [2021-11-03 04:49:37,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:37" (1/1) ... [2021-11-03 04:49:37,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:49:37,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:49:37,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:49:37,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:49:37,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:37" (1/1) ... [2021-11-03 04:49:37,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:37" (1/1) ... [2021-11-03 04:49:37,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:37" (1/1) ... [2021-11-03 04:49:37,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:37" (1/1) ... [2021-11-03 04:49:37,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:37" (1/1) ... [2021-11-03 04:49:37,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:37" (1/1) ... [2021-11-03 04:49:37,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:37" (1/1) ... [2021-11-03 04:49:37,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:49:37,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:49:37,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:49:37,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:49:37,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:37" (1/1) ... [2021-11-03 04:49:37,930 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:49:37,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482a0745-e456-45a6-aaa6-8eaebdde9f02/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:49:37,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482a0745-e456-45a6-aaa6-8eaebdde9f02/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:49:37,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482a0745-e456-45a6-aaa6-8eaebdde9f02/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:49:37,999 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-03 04:49:38,000 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-03 04:49:38,000 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-03 04:49:38,000 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-03 04:49:38,001 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-03 04:49:38,001 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-03 04:49:38,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 04:49:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:49:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 04:49:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-03 04:49:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-03 04:49:38,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:49:38,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:49:38,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 04:49:38,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:49:38,006 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-03 04:49:40,463 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:49:40,463 INFO L299 CfgBuilder]: Removed 80 assume(true) statements. [2021-11-03 04:49:40,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:49:40 BoogieIcfgContainer [2021-11-03 04:49:40,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:49:40,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:49:40,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:49:40,477 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:49:40,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:49:37" (1/3) ... [2021-11-03 04:49:40,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a5fb6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:49:40, skipping insertion in model container [2021-11-03 04:49:40,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:37" (2/3) ... [2021-11-03 04:49:40,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a5fb6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:49:40, skipping insertion in model container [2021-11-03 04:49:40,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:49:40" (3/3) ... [2021-11-03 04:49:40,482 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-collitem-subst.wvr.c [2021-11-03 04:49:40,489 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-03 04:49:40,489 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:49:40,490 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 04:49:40,490 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-03 04:49:40,541 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,541 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,542 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,542 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,542 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,542 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,542 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,543 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,543 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,543 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,543 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,545 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,545 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,547 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,548 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,548 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,548 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,549 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,549 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,549 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,549 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,550 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,550 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,550 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,550 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,551 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,551 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,551 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,551 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,552 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,554 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,555 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,555 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,555 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,556 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,556 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,556 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,557 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,557 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,557 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,557 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,557 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,558 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,558 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,558 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,558 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,559 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,559 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,559 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,559 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,560 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,562 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,562 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,563 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,563 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,563 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,563 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,564 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,564 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,564 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,564 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,565 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,565 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,565 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,565 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,566 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,566 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,566 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,569 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,569 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,569 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,569 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,570 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,570 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,571 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,571 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,571 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,571 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,572 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,572 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,572 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,572 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,573 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,573 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,573 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,573 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,574 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,574 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,574 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,576 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,577 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,577 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,577 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,578 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,578 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,578 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,578 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,578 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,579 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,579 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,579 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,579 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,580 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,580 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,580 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,580 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,583 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,583 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,584 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,584 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,588 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,588 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,589 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,589 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,589 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,590 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,590 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,590 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,590 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,591 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,591 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,591 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,592 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,592 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,592 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,592 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,595 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,595 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,595 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,596 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,596 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,596 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,596 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,597 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,597 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,597 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,597 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,598 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,598 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,598 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,598 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,599 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,601 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,601 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,601 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,602 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,602 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,602 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,602 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,603 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,603 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,603 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,604 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,604 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,604 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,604 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,605 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,605 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:49:40,613 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-03 04:49:40,673 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:49:40,681 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:49:40,682 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-03 04:49:40,701 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-03 04:49:40,714 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 125 transitions, 274 flow [2021-11-03 04:49:40,717 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 125 transitions, 274 flow [2021-11-03 04:49:40,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 133 places, 125 transitions, 274 flow [2021-11-03 04:49:40,778 INFO L129 PetriNetUnfolder]: 2/122 cut-off events. [2021-11-03 04:49:40,779 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-03 04:49:40,782 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 122 events. 2/122 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2021-11-03 04:49:40,785 INFO L116 LiptonReduction]: Number of co-enabled transitions 270 [2021-11-03 04:49:53,910 INFO L131 LiptonReduction]: Checked pairs total: 439 [2021-11-03 04:49:53,911 INFO L133 LiptonReduction]: Total number of compositions: 112 [2021-11-03 04:49:53,920 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 64 flow [2021-11-03 04:49:53,935 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:49:53,938 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:49:53,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-03 04:49:53,945 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:49:53,946 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:49:53,946 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-03 04:49:53,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:49:53,952 INFO L85 PathProgramCache]: Analyzing trace with hash 667743127, now seen corresponding path program 1 times [2021-11-03 04:49:53,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:49:53,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966908078] [2021-11-03 04:49:53,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:49:53,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:49:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:49:58,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:49:58,279 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:49:58,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966908078] [2021-11-03 04:49:58,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966908078] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:49:58,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:49:58,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 04:49:58,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322832333] [2021-11-03 04:49:58,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:49:58,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:49:58,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:49:58,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:49:58,316 INFO L87 Difference]: Start difference. First operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:49:58,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:49:58,949 INFO L93 Difference]: Finished difference Result 61 states and 96 transitions. [2021-11-03 04:49:58,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:49:58,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-03 04:49:58,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:49:58,962 INFO L225 Difference]: With dead ends: 61 [2021-11-03 04:49:58,962 INFO L226 Difference]: Without dead ends: 52 [2021-11-03 04:49:58,964 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:49:58,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-03 04:49:58,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2021-11-03 04:49:58,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.813953488372093) internal successors, (78), 43 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:49:58,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 78 transitions. [2021-11-03 04:49:58,998 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 78 transitions. Word has length 16 [2021-11-03 04:49:58,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:49:58,999 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 78 transitions. [2021-11-03 04:49:58,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:49:59,000 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 78 transitions. [2021-11-03 04:49:59,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-03 04:49:59,001 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:49:59,001 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:49:59,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 04:49:59,002 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-03 04:49:59,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:49:59,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1425638971, now seen corresponding path program 2 times [2021-11-03 04:49:59,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:49:59,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175498023] [2021-11-03 04:49:59,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:49:59,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:49:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:50:00,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:50:00,565 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:50:00,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175498023] [2021-11-03 04:50:00,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175498023] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:50:00,566 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:50:00,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 04:50:00,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424416499] [2021-11-03 04:50:00,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:50:00,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:50:00,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:50:00,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:50:00,572 INFO L87 Difference]: Start difference. First operand 44 states and 78 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:50:01,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:50:01,098 INFO L93 Difference]: Finished difference Result 67 states and 104 transitions. [2021-11-03 04:50:01,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:50:01,099 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-03 04:50:01,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:50:01,101 INFO L225 Difference]: With dead ends: 67 [2021-11-03 04:50:01,101 INFO L226 Difference]: Without dead ends: 48 [2021-11-03 04:50:01,102 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:50:01,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-11-03 04:50:01,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 40. [2021-11-03 04:50:01,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.7179487179487178) internal successors, (67), 39 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:50:01,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 67 transitions. [2021-11-03 04:50:01,110 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 67 transitions. Word has length 16 [2021-11-03 04:50:01,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:50:01,110 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 67 transitions. [2021-11-03 04:50:01,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:50:01,111 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 67 transitions. [2021-11-03 04:50:01,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-03 04:50:01,112 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:50:01,112 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:50:01,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 04:50:01,113 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-03 04:50:01,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:50:01,114 INFO L85 PathProgramCache]: Analyzing trace with hash -878893701, now seen corresponding path program 3 times [2021-11-03 04:50:01,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:50:01,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307849907] [2021-11-03 04:50:01,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:50:01,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:50:01,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:50:02,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:50:02,030 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:50:02,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307849907] [2021-11-03 04:50:02,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307849907] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:50:02,031 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:50:02,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 04:50:02,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788666952] [2021-11-03 04:50:02,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:50:02,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:50:02,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:50:02,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:50:02,040 INFO L87 Difference]: Start difference. First operand 40 states and 67 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:50:02,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:50:02,349 INFO L93 Difference]: Finished difference Result 55 states and 80 transitions. [2021-11-03 04:50:02,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:50:02,350 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-03 04:50:02,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:50:02,351 INFO L225 Difference]: With dead ends: 55 [2021-11-03 04:50:02,351 INFO L226 Difference]: Without dead ends: 46 [2021-11-03 04:50:02,352 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:50:02,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-03 04:50:02,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 38. [2021-11-03 04:50:02,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.6756756756756757) internal successors, (62), 37 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:50:02,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2021-11-03 04:50:02,358 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 16 [2021-11-03 04:50:02,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:50:02,359 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2021-11-03 04:50:02,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:50:02,359 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2021-11-03 04:50:02,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-03 04:50:02,360 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:50:02,360 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:50:02,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 04:50:02,361 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-03 04:50:02,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:50:02,362 INFO L85 PathProgramCache]: Analyzing trace with hash -587539633, now seen corresponding path program 4 times [2021-11-03 04:50:02,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:50:02,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808470477] [2021-11-03 04:50:02,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:50:02,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:50:02,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:50:06,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:50:06,688 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:50:06,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808470477] [2021-11-03 04:50:06,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808470477] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:50:06,688 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:50:06,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 04:50:06,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934426449] [2021-11-03 04:50:06,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:50:06,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:50:06,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:50:06,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:50:06,691 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:50:07,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:50:07,313 INFO L93 Difference]: Finished difference Result 49 states and 75 transitions. [2021-11-03 04:50:07,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:50:07,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-03 04:50:07,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:50:07,315 INFO L225 Difference]: With dead ends: 49 [2021-11-03 04:50:07,315 INFO L226 Difference]: Without dead ends: 36 [2021-11-03 04:50:07,316 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:50:07,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-03 04:50:07,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-11-03 04:50:07,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:50:07,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2021-11-03 04:50:07,322 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 57 transitions. Word has length 16 [2021-11-03 04:50:07,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:50:07,322 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 57 transitions. [2021-11-03 04:50:07,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:50:07,323 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 57 transitions. [2021-11-03 04:50:07,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-03 04:50:07,324 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:50:07,324 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:50:07,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-03 04:50:07,325 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-03 04:50:07,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:50:07,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1232128987, now seen corresponding path program 5 times [2021-11-03 04:50:07,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:50:07,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882858333] [2021-11-03 04:50:07,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:50:07,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:50:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:50:08,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:50:08,469 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:50:08,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882858333] [2021-11-03 04:50:08,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882858333] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:50:08,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:50:08,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 04:50:08,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143023518] [2021-11-03 04:50:08,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:50:08,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:50:08,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:50:08,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:50:08,473 INFO L87 Difference]: Start difference. First operand 36 states and 57 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:50:08,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:50:08,736 INFO L93 Difference]: Finished difference Result 43 states and 63 transitions. [2021-11-03 04:50:08,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:50:08,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-03 04:50:08,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:50:08,737 INFO L225 Difference]: With dead ends: 43 [2021-11-03 04:50:08,737 INFO L226 Difference]: Without dead ends: 28 [2021-11-03 04:50:08,737 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:50:08,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-03 04:50:08,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-11-03 04:50:08,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 27 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:50:08,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2021-11-03 04:50:08,741 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 16 [2021-11-03 04:50:08,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:50:08,741 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2021-11-03 04:50:08,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:50:08,742 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2021-11-03 04:50:08,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-03 04:50:08,743 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:50:08,743 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:50:08,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-03 04:50:08,743 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-03 04:50:08,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:50:08,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1048360895, now seen corresponding path program 6 times [2021-11-03 04:50:08,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:50:08,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84693410] [2021-11-03 04:50:08,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:50:08,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:50:09,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:50:10,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:50:10,431 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:50:10,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84693410] [2021-11-03 04:50:10,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84693410] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:50:10,439 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:50:10,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 04:50:10,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036004976] [2021-11-03 04:50:10,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:50:10,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:50:10,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:50:10,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:50:10,442 INFO L87 Difference]: Start difference. First operand 28 states and 38 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:50:10,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:50:10,740 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions. [2021-11-03 04:50:10,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:50:10,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-03 04:50:10,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:50:10,741 INFO L225 Difference]: With dead ends: 27 [2021-11-03 04:50:10,741 INFO L226 Difference]: Without dead ends: 0 [2021-11-03 04:50:10,741 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:50:10,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-03 04:50:10,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-03 04:50:10,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:50:10,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-03 04:50:10,742 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-11-03 04:50:10,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:50:10,742 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-03 04:50:10,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:50:10,742 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-03 04:50:10,742 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-03 04:50:10,745 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:50:10,746 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-03 04:50:10,746 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-11-03 04:50:10,746 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-11-03 04:50:10,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-03 04:50:10,751 INFO L731 BasicCegarLoop]: Path program histogram: [6] [2021-11-03 04:50:10,753 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-03 04:50:10,753 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 04:50:10,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:50:10 BasicIcfg [2021-11-03 04:50:10,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 04:50:10,760 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 04:50:10,761 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 04:50:10,761 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 04:50:10,762 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:49:40" (3/4) ... [2021-11-03 04:50:10,765 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-03 04:50:10,771 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-11-03 04:50:10,771 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-11-03 04:50:10,771 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-11-03 04:50:10,779 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-11-03 04:50:10,779 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-03 04:50:10,780 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 04:50:10,780 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 04:50:10,853 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482a0745-e456-45a6-aaa6-8eaebdde9f02/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 04:50:10,853 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 04:50:10,855 INFO L168 Benchmark]: Toolchain (without parser) took 33508.54 ms. Allocated memory was 117.4 MB in the beginning and 432.0 MB in the end (delta: 314.6 MB). Free memory was 82.4 MB in the beginning and 290.6 MB in the end (delta: -208.2 MB). Peak memory consumption was 105.5 MB. Max. memory is 16.1 GB. [2021-11-03 04:50:10,856 INFO L168 Benchmark]: CDTParser took 1.00 ms. Allocated memory is still 83.9 MB. Free memory was 55.5 MB in the beginning and 55.4 MB in the end (delta: 30.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:50:10,857 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.09 ms. Allocated memory is still 117.4 MB. Free memory was 82.3 MB in the beginning and 91.3 MB in the end (delta: -9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:50:10,857 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.52 ms. Allocated memory is still 117.4 MB. Free memory was 91.3 MB in the beginning and 88.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-03 04:50:10,858 INFO L168 Benchmark]: Boogie Preprocessor took 67.19 ms. Allocated memory is still 117.4 MB. Free memory was 88.2 MB in the beginning and 86.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:50:10,858 INFO L168 Benchmark]: RCFGBuilder took 2567.95 ms. Allocated memory is still 117.4 MB. Free memory was 86.6 MB in the beginning and 67.2 MB in the end (delta: 19.4 MB). Peak memory consumption was 61.9 MB. Max. memory is 16.1 GB. [2021-11-03 04:50:10,859 INFO L168 Benchmark]: TraceAbstraction took 30287.05 ms. Allocated memory was 117.4 MB in the beginning and 432.0 MB in the end (delta: 314.6 MB). Free memory was 67.2 MB in the beginning and 294.8 MB in the end (delta: -227.7 MB). Peak memory consumption was 86.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:50:10,859 INFO L168 Benchmark]: Witness Printer took 92.79 ms. Allocated memory is still 432.0 MB. Free memory was 294.8 MB in the beginning and 290.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-03 04:50:10,862 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.00 ms. Allocated memory is still 83.9 MB. Free memory was 55.5 MB in the beginning and 55.4 MB in the end (delta: 30.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 392.09 ms. Allocated memory is still 117.4 MB. Free memory was 82.3 MB in the beginning and 91.3 MB in the end (delta: -9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 90.52 ms. Allocated memory is still 117.4 MB. Free memory was 91.3 MB in the beginning and 88.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.19 ms. Allocated memory is still 117.4 MB. Free memory was 88.2 MB in the beginning and 86.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2567.95 ms. Allocated memory is still 117.4 MB. Free memory was 86.6 MB in the beginning and 67.2 MB in the end (delta: 19.4 MB). Peak memory consumption was 61.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 30287.05 ms. Allocated memory was 117.4 MB in the beginning and 432.0 MB in the end (delta: 314.6 MB). Free memory was 67.2 MB in the beginning and 294.8 MB in the end (delta: -227.7 MB). Peak memory consumption was 86.4 MB. Max. memory is 16.1 GB. * Witness Printer took 92.79 ms. Allocated memory is still 432.0 MB. Free memory was 294.8 MB in the beginning and 290.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.1s, 133 PlacesBefore, 30 PlacesAfterwards, 125 TransitionsBefore, 20 TransitionsAfterwards, 270 CoEnabledTransitionPairs, 7 FixpointIterations, 87 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 112 TotalNumberOfCompositions, 439 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 439, positive: 439, positive conditional: 0, positive unconditional: 439, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 213, positive: 213, positive conditional: 0, positive unconditional: 213, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 213, positive: 213, positive conditional: 0, positive unconditional: 213, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 439, positive: 226, positive conditional: 0, positive unconditional: 226, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 213, unknown conditional: 0, unknown unconditional: 213] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 101]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 139 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 30.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 148 SDtfs, 190 SDslu, 205 SDs, 0 SdLazy, 93 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 4339 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-03 04:50:10,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482a0745-e456-45a6-aaa6-8eaebdde9f02/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE