./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe030_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a18fcec-b0c4-48de-963c-cf730c8c993c/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a18fcec-b0c4-48de-963c-cf730c8c993c/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a18fcec-b0c4-48de-963c-cf730c8c993c/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a18fcec-b0c4-48de-963c-cf730c8c993c/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe030_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a18fcec-b0c4-48de-963c-cf730c8c993c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a18fcec-b0c4-48de-963c-cf730c8c993c/bin/utaipan-UUZaoUuFF8 --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 1730fa7f98e17ee8b58920ef3daf63ee88225f1b42924032a532b5f5db33fba5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:24:09,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:24:09,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:24:09,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:24:09,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:24:09,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:24:09,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:24:09,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:24:09,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:24:09,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:24:09,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:24:09,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:24:09,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:24:09,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:24:09,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:24:09,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:24:09,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:24:09,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:24:09,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:24:09,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:24:09,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:24:09,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:24:09,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:24:09,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:24:09,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:24:09,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:24:09,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:24:09,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:24:09,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:24:09,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:24:09,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:24:09,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:24:09,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:24:09,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:24:09,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:24:09,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:24:09,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:24:09,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:24:09,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:24:09,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:24:09,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:24:09,666 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a18fcec-b0c4-48de-963c-cf730c8c993c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 02:24:09,709 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:24:09,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:24:09,711 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:24:09,711 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:24:09,711 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:24:09,711 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:24:09,712 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:24:09,712 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:24:09,712 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:24:09,712 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:24:09,721 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:24:09,721 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:24:09,721 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:24:09,722 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:24:09,722 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:24:09,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:24:09,723 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:24:09,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:24:09,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:24:09,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:24:09,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:24:09,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:24:09,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:24:09,724 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:24:09,724 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:24:09,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:24:09,725 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:24:09,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:24:09,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:24:09,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:24:09,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:24:09,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:24:09,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:24:09,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:24:09,728 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:24:09,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:24:09,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:24:09,728 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:24:09,728 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:24:09,729 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_2a18fcec-b0c4-48de-963c-cf730c8c993c/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a18fcec-b0c4-48de-963c-cf730c8c993c/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1730fa7f98e17ee8b58920ef3daf63ee88225f1b42924032a532b5f5db33fba5 [2021-11-07 02:24:10,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:24:10,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:24:10,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:24:10,070 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:24:10,073 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:24:10,074 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a18fcec-b0c4-48de-963c-cf730c8c993c/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/pthread-wmm/safe030_tso.i [2021-11-07 02:24:10,147 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a18fcec-b0c4-48de-963c-cf730c8c993c/bin/utaipan-UUZaoUuFF8/data/cfb17acc3/ef05413d730e401485b0c406a80d02c8/FLAGad2e00b9d [2021-11-07 02:24:10,713 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:24:10,714 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a18fcec-b0c4-48de-963c-cf730c8c993c/sv-benchmarks/c/pthread-wmm/safe030_tso.i [2021-11-07 02:24:10,733 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a18fcec-b0c4-48de-963c-cf730c8c993c/bin/utaipan-UUZaoUuFF8/data/cfb17acc3/ef05413d730e401485b0c406a80d02c8/FLAGad2e00b9d [2021-11-07 02:24:10,985 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a18fcec-b0c4-48de-963c-cf730c8c993c/bin/utaipan-UUZaoUuFF8/data/cfb17acc3/ef05413d730e401485b0c406a80d02c8 [2021-11-07 02:24:10,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:24:10,989 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:24:10,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:24:10,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:24:11,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:24:11,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:24:10" (1/1) ... [2021-11-07 02:24:11,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e0f1e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:11, skipping insertion in model container [2021-11-07 02:24:11,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:24:10" (1/1) ... [2021-11-07 02:24:11,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:24:11,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:24:11,260 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_2a18fcec-b0c4-48de-963c-cf730c8c993c/sv-benchmarks/c/pthread-wmm/safe030_tso.i[945,958] [2021-11-07 02:24:11,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:24:11,515 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:24:11,529 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_2a18fcec-b0c4-48de-963c-cf730c8c993c/sv-benchmarks/c/pthread-wmm/safe030_tso.i[945,958] [2021-11-07 02:24:11,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:24:11,631 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:24:11,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:11 WrapperNode [2021-11-07 02:24:11,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:24:11,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:24:11,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:24:11,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:24:11,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:11" (1/1) ... [2021-11-07 02:24:11,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:11" (1/1) ... [2021-11-07 02:24:11,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:24:11,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:24:11,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:24:11,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:24:11,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:11" (1/1) ... [2021-11-07 02:24:11,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:11" (1/1) ... [2021-11-07 02:24:11,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:11" (1/1) ... [2021-11-07 02:24:11,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:11" (1/1) ... [2021-11-07 02:24:11,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:11" (1/1) ... [2021-11-07 02:24:11,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:11" (1/1) ... [2021-11-07 02:24:11,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:11" (1/1) ... [2021-11-07 02:24:11,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:24:11,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:24:11,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:24:11,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:24:11,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:11" (1/1) ... [2021-11-07 02:24:11,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:24:11,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a18fcec-b0c4-48de-963c-cf730c8c993c/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:24:11,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a18fcec-b0c4-48de-963c-cf730c8c993c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:24:11,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a18fcec-b0c4-48de-963c-cf730c8c993c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:24:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 02:24:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-07 02:24:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:24:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:24:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-07 02:24:11,864 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-07 02:24:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-07 02:24:11,865 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-07 02:24:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-07 02:24:11,865 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-07 02:24:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 02:24:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-07 02:24:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:24:11,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:24:11,867 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 02:24:12,229 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:24:12,229 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-07 02:24:12,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:24:12 BoogieIcfgContainer [2021-11-07 02:24:12,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:24:12,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:24:12,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:24:12,237 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:24:12,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:24:10" (1/3) ... [2021-11-07 02:24:12,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b59a2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:24:12, skipping insertion in model container [2021-11-07 02:24:12,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:11" (2/3) ... [2021-11-07 02:24:12,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b59a2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:24:12, skipping insertion in model container [2021-11-07 02:24:12,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:24:12" (3/3) ... [2021-11-07 02:24:12,241 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_tso.i [2021-11-07 02:24:12,247 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 02:24:12,247 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:24:12,247 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 02:24:12,247 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 02:24:12,281 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,282 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,282 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,282 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,283 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,283 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,283 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,283 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,284 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,284 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,285 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,285 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,286 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,286 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,286 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,286 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,286 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,287 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,287 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,288 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,293 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,294 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,294 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,295 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,295 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,296 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,296 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,296 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,301 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,301 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,301 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,301 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,302 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,302 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,303 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,303 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,306 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,306 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,307 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,307 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,312 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,312 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,312 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,313 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,317 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,318 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,318 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,320 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:24:12,326 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-07 02:24:12,378 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:24:12,384 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 [2021-11-07 02:24:12,384 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-07 02:24:12,399 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-07 02:24:12,410 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 82 transitions, 179 flow [2021-11-07 02:24:12,414 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 82 transitions, 179 flow [2021-11-07 02:24:12,416 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 82 transitions, 179 flow [2021-11-07 02:24:12,475 INFO L129 PetriNetUnfolder]: 2/79 cut-off events. [2021-11-07 02:24:12,476 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-07 02:24:12,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 79 events. 2/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-11-07 02:24:12,483 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2021-11-07 02:24:15,517 INFO L131 LiptonReduction]: Checked pairs total: 2805 [2021-11-07 02:24:15,518 INFO L133 LiptonReduction]: Total number of compositions: 71 [2021-11-07 02:24:15,527 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2021-11-07 02:24:15,556 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 234 states, 233 states have (on average 2.815450643776824) internal successors, (656), 233 states have internal predecessors, (656), 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) [2021-11-07 02:24:15,559 INFO L276 IsEmpty]: Start isEmpty. Operand has 234 states, 233 states have (on average 2.815450643776824) internal successors, (656), 233 states have internal predecessors, (656), 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) [2021-11-07 02:24:15,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 02:24:15,565 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:15,565 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:15,566 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 02:24:15,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:15,571 INFO L85 PathProgramCache]: Analyzing trace with hash 190601231, now seen corresponding path program 1 times [2021-11-07 02:24:15,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:24:15,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116578005] [2021-11-07 02:24:15,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:15,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:24:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:15,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:15,917 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:24:15,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116578005] [2021-11-07 02:24:15,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116578005] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:15,920 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:15,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-07 02:24:15,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315013395] [2021-11-07 02:24:15,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:24:15,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:24:15,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:24:15,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:24:15,953 INFO L87 Difference]: Start difference. First operand has 234 states, 233 states have (on average 2.815450643776824) internal successors, (656), 233 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:16,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:16,005 INFO L93 Difference]: Finished difference Result 226 states and 626 transitions. [2021-11-07 02:24:16,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:24:16,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-07 02:24:16,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:16,027 INFO L225 Difference]: With dead ends: 226 [2021-11-07 02:24:16,027 INFO L226 Difference]: Without dead ends: 226 [2021-11-07 02:24:16,029 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:24:16,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-11-07 02:24:16,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2021-11-07 02:24:16,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 2.7822222222222224) internal successors, (626), 225 states have internal predecessors, (626), 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) [2021-11-07 02:24:16,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2021-11-07 02:24:16,105 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2021-11-07 02:24:16,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:16,106 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2021-11-07 02:24:16,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:16,107 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2021-11-07 02:24:16,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 02:24:16,109 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:16,109 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:16,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 02:24:16,110 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 02:24:16,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:16,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1585969026, now seen corresponding path program 1 times [2021-11-07 02:24:16,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:24:16,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11488622] [2021-11-07 02:24:16,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:16,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:24:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:16,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:16,213 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:24:16,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11488622] [2021-11-07 02:24:16,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11488622] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:16,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:16,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-07 02:24:16,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961719652] [2021-11-07 02:24:16,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:24:16,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:24:16,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:24:16,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:24:16,217 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:16,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:16,226 INFO L93 Difference]: Finished difference Result 220 states and 604 transitions. [2021-11-07 02:24:16,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:24:16,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-07 02:24:16,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:16,229 INFO L225 Difference]: With dead ends: 220 [2021-11-07 02:24:16,237 INFO L226 Difference]: Without dead ends: 220 [2021-11-07 02:24:16,238 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:24:16,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-11-07 02:24:16,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2021-11-07 02:24:16,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 219 states have (on average 2.7579908675799087) internal successors, (604), 219 states have internal predecessors, (604), 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) [2021-11-07 02:24:16,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 604 transitions. [2021-11-07 02:24:16,254 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 604 transitions. Word has length 9 [2021-11-07 02:24:16,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:16,254 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 604 transitions. [2021-11-07 02:24:16,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:16,255 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 604 transitions. [2021-11-07 02:24:16,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 02:24:16,256 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:16,256 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:16,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 02:24:16,257 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 02:24:16,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:16,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1217603860, now seen corresponding path program 1 times [2021-11-07 02:24:16,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:24:16,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418538051] [2021-11-07 02:24:16,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:16,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:24:16,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:16,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:16,353 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:24:16,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418538051] [2021-11-07 02:24:16,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418538051] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:16,354 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:16,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 02:24:16,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357376425] [2021-11-07 02:24:16,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:24:16,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:24:16,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:24:16,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:24:16,362 INFO L87 Difference]: Start difference. First operand 220 states and 604 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:16,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:16,395 INFO L93 Difference]: Finished difference Result 308 states and 814 transitions. [2021-11-07 02:24:16,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:24:16,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-07 02:24:16,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:16,400 INFO L225 Difference]: With dead ends: 308 [2021-11-07 02:24:16,401 INFO L226 Difference]: Without dead ends: 256 [2021-11-07 02:24:16,401 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:24:16,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-07 02:24:16,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 226. [2021-11-07 02:24:16,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 2.4844444444444442) internal successors, (559), 225 states have internal predecessors, (559), 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) [2021-11-07 02:24:16,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 559 transitions. [2021-11-07 02:24:16,430 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 559 transitions. Word has length 10 [2021-11-07 02:24:16,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:16,430 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 559 transitions. [2021-11-07 02:24:16,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:16,431 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 559 transitions. [2021-11-07 02:24:16,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 02:24:16,434 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:16,434 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:16,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 02:24:16,434 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 02:24:16,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:16,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1262856389, now seen corresponding path program 1 times [2021-11-07 02:24:16,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:24:16,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810950541] [2021-11-07 02:24:16,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:16,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:24:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:16,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:16,530 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:24:16,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810950541] [2021-11-07 02:24:16,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810950541] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:16,532 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:16,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 02:24:16,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777441803] [2021-11-07 02:24:16,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:24:16,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:24:16,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:24:16,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:24:16,539 INFO L87 Difference]: Start difference. First operand 226 states and 559 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:16,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:16,570 INFO L93 Difference]: Finished difference Result 249 states and 611 transitions. [2021-11-07 02:24:16,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:24:16,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-07 02:24:16,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:16,574 INFO L225 Difference]: With dead ends: 249 [2021-11-07 02:24:16,577 INFO L226 Difference]: Without dead ends: 249 [2021-11-07 02:24:16,578 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:24:16,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-11-07 02:24:16,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 215. [2021-11-07 02:24:16,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 214 states have (on average 2.457943925233645) internal successors, (526), 214 states have internal predecessors, (526), 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) [2021-11-07 02:24:16,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 526 transitions. [2021-11-07 02:24:16,599 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 526 transitions. Word has length 10 [2021-11-07 02:24:16,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:16,600 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 526 transitions. [2021-11-07 02:24:16,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:16,605 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 526 transitions. [2021-11-07 02:24:16,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 02:24:16,610 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:16,611 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:16,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 02:24:16,611 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 02:24:16,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:16,612 INFO L85 PathProgramCache]: Analyzing trace with hash -908987359, now seen corresponding path program 1 times [2021-11-07 02:24:16,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:24:16,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657236367] [2021-11-07 02:24:16,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:16,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:24:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:16,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:16,685 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:24:16,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657236367] [2021-11-07 02:24:16,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657236367] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:16,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:16,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 02:24:16,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491657738] [2021-11-07 02:24:16,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:24:16,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:24:16,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:24:16,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:24:16,688 INFO L87 Difference]: Start difference. First operand 215 states and 526 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:16,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:16,714 INFO L93 Difference]: Finished difference Result 287 states and 676 transitions. [2021-11-07 02:24:16,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:24:16,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-07 02:24:16,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:16,717 INFO L225 Difference]: With dead ends: 287 [2021-11-07 02:24:16,717 INFO L226 Difference]: Without dead ends: 251 [2021-11-07 02:24:16,718 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:24:16,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-11-07 02:24:16,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 205. [2021-11-07 02:24:16,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 2.3480392156862746) internal successors, (479), 204 states have internal predecessors, (479), 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) [2021-11-07 02:24:16,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 479 transitions. [2021-11-07 02:24:16,729 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 479 transitions. Word has length 11 [2021-11-07 02:24:16,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:16,730 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 479 transitions. [2021-11-07 02:24:16,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:16,730 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 479 transitions. [2021-11-07 02:24:16,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 02:24:16,733 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:16,733 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:16,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 02:24:16,733 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 02:24:16,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:16,734 INFO L85 PathProgramCache]: Analyzing trace with hash 493841040, now seen corresponding path program 1 times [2021-11-07 02:24:16,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:24:16,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914229647] [2021-11-07 02:24:16,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:16,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:24:16,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:16,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:16,832 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:24:16,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914229647] [2021-11-07 02:24:16,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914229647] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:16,836 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:16,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 02:24:16,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803979175] [2021-11-07 02:24:16,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:24:16,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:24:16,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:24:16,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:24:16,839 INFO L87 Difference]: Start difference. First operand 205 states and 479 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:16,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:16,868 INFO L93 Difference]: Finished difference Result 223 states and 471 transitions. [2021-11-07 02:24:16,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:24:16,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-07 02:24:16,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:16,870 INFO L225 Difference]: With dead ends: 223 [2021-11-07 02:24:16,870 INFO L226 Difference]: Without dead ends: 162 [2021-11-07 02:24:16,870 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:24:16,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-11-07 02:24:16,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2021-11-07 02:24:16,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 2.049689440993789) internal successors, (330), 161 states have internal predecessors, (330), 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) [2021-11-07 02:24:16,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 330 transitions. [2021-11-07 02:24:16,883 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 330 transitions. Word has length 11 [2021-11-07 02:24:16,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:16,884 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 330 transitions. [2021-11-07 02:24:16,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:16,884 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 330 transitions. [2021-11-07 02:24:16,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 02:24:16,884 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:16,884 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:16,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 02:24:16,885 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 02:24:16,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:16,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1098163526, now seen corresponding path program 1 times [2021-11-07 02:24:16,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:24:16,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546504568] [2021-11-07 02:24:16,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:16,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:24:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:16,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:16,930 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:24:16,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546504568] [2021-11-07 02:24:16,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546504568] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:16,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:16,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 02:24:16,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044741762] [2021-11-07 02:24:16,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:24:16,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:24:16,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:24:16,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:24:16,932 INFO L87 Difference]: Start difference. First operand 162 states and 330 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:16,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:16,949 INFO L93 Difference]: Finished difference Result 202 states and 399 transitions. [2021-11-07 02:24:16,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:24:16,953 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-07 02:24:16,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:16,954 INFO L225 Difference]: With dead ends: 202 [2021-11-07 02:24:16,955 INFO L226 Difference]: Without dead ends: 182 [2021-11-07 02:24:16,955 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:24:16,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-11-07 02:24:16,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 152. [2021-11-07 02:24:16,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 2.0264900662251657) internal successors, (306), 151 states have internal predecessors, (306), 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) [2021-11-07 02:24:16,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 306 transitions. [2021-11-07 02:24:16,965 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 306 transitions. Word has length 12 [2021-11-07 02:24:16,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:16,966 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 306 transitions. [2021-11-07 02:24:16,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:16,966 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 306 transitions. [2021-11-07 02:24:16,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 02:24:16,967 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:16,968 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:16,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 02:24:16,968 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 02:24:16,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:16,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1962592391, now seen corresponding path program 1 times [2021-11-07 02:24:16,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:24:16,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000103015] [2021-11-07 02:24:16,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:16,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:24:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:17,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:17,044 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:24:17,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000103015] [2021-11-07 02:24:17,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000103015] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:17,045 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:17,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 02:24:17,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622089992] [2021-11-07 02:24:17,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:24:17,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:24:17,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:24:17,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:24:17,047 INFO L87 Difference]: Start difference. First operand 152 states and 306 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:17,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:17,067 INFO L93 Difference]: Finished difference Result 196 states and 378 transitions. [2021-11-07 02:24:17,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:24:17,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-07 02:24:17,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:17,069 INFO L225 Difference]: With dead ends: 196 [2021-11-07 02:24:17,069 INFO L226 Difference]: Without dead ends: 176 [2021-11-07 02:24:17,070 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:24:17,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-11-07 02:24:17,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 146. [2021-11-07 02:24:17,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 2.0068965517241377) internal successors, (291), 145 states have internal predecessors, (291), 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) [2021-11-07 02:24:17,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 291 transitions. [2021-11-07 02:24:17,077 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 291 transitions. Word has length 12 [2021-11-07 02:24:17,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:17,077 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 291 transitions. [2021-11-07 02:24:17,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:17,077 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 291 transitions. [2021-11-07 02:24:17,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 02:24:17,078 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:17,078 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:17,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 02:24:17,078 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 02:24:17,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:17,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1784853470, now seen corresponding path program 1 times [2021-11-07 02:24:17,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:24:17,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949493160] [2021-11-07 02:24:17,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:17,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:24:17,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:17,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:17,129 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:24:17,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949493160] [2021-11-07 02:24:17,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949493160] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:17,130 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:17,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 02:24:17,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002920163] [2021-11-07 02:24:17,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:24:17,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:24:17,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:24:17,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:24:17,132 INFO L87 Difference]: Start difference. First operand 146 states and 291 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:17,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:17,166 INFO L93 Difference]: Finished difference Result 140 states and 261 transitions. [2021-11-07 02:24:17,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:24:17,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-07 02:24:17,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:17,167 INFO L225 Difference]: With dead ends: 140 [2021-11-07 02:24:17,168 INFO L226 Difference]: Without dead ends: 89 [2021-11-07 02:24:17,168 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:24:17,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-07 02:24:17,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-11-07 02:24:17,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 88 states have (on average 1.7045454545454546) internal successors, (150), 88 states have internal predecessors, (150), 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) [2021-11-07 02:24:17,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 150 transitions. [2021-11-07 02:24:17,172 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 150 transitions. Word has length 13 [2021-11-07 02:24:17,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:17,172 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 150 transitions. [2021-11-07 02:24:17,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:17,172 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 150 transitions. [2021-11-07 02:24:17,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 02:24:17,173 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:17,173 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:17,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 02:24:17,174 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 02:24:17,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:17,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1413618773, now seen corresponding path program 1 times [2021-11-07 02:24:17,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:24:17,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148901682] [2021-11-07 02:24:17,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:17,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:24:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:17,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:17,268 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:24:17,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148901682] [2021-11-07 02:24:17,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148901682] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:17,269 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:17,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 02:24:17,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144248083] [2021-11-07 02:24:17,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:24:17,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:24:17,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:24:17,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:24:17,270 INFO L87 Difference]: Start difference. First operand 89 states and 150 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:17,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:17,299 INFO L93 Difference]: Finished difference Result 82 states and 141 transitions. [2021-11-07 02:24:17,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:24:17,300 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-07 02:24:17,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:17,300 INFO L225 Difference]: With dead ends: 82 [2021-11-07 02:24:17,300 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 02:24:17,301 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:24:17,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 02:24:17,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 02:24:17,301 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) [2021-11-07 02:24:17,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 02:24:17,301 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-11-07 02:24:17,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:17,302 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 02:24:17,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:17,302 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 02:24:17,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 02:24:17,305 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:24:17,305 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-07 02:24:17,306 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-11-07 02:24:17,306 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-11-07 02:24:17,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 02:24:17,308 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:17,310 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-07 02:24:17,310 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 02:24:17,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:24:17 BasicIcfg [2021-11-07 02:24:17,312 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 02:24:17,313 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 02:24:17,313 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 02:24:17,313 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 02:24:17,314 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:24:12" (3/4) ... [2021-11-07 02:24:17,317 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 02:24:17,323 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-11-07 02:24:17,323 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-11-07 02:24:17,323 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-11-07 02:24:17,328 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-07 02:24:17,328 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-07 02:24:17,328 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 02:24:17,328 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 02:24:17,371 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a18fcec-b0c4-48de-963c-cf730c8c993c/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 02:24:17,372 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 02:24:17,373 INFO L168 Benchmark]: Toolchain (without parser) took 6382.86 ms. Allocated memory was 117.4 MB in the beginning and 159.4 MB in the end (delta: 41.9 MB). Free memory was 74.7 MB in the beginning and 120.8 MB in the end (delta: -46.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:24:17,374 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 117.4 MB. Free memory is still 92.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:24:17,375 INFO L168 Benchmark]: CACSL2BoogieTranslator took 638.10 ms. Allocated memory is still 117.4 MB. Free memory was 74.5 MB in the beginning and 80.2 MB in the end (delta: -5.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:24:17,375 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.14 ms. Allocated memory is still 117.4 MB. Free memory was 80.2 MB in the beginning and 78.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 02:24:17,376 INFO L168 Benchmark]: Boogie Preprocessor took 60.24 ms. Allocated memory is still 117.4 MB. Free memory was 78.6 MB in the beginning and 77.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 02:24:17,376 INFO L168 Benchmark]: RCFGBuilder took 456.48 ms. Allocated memory is still 117.4 MB. Free memory was 77.1 MB in the beginning and 64.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 02:24:17,377 INFO L168 Benchmark]: TraceAbstraction took 5078.63 ms. Allocated memory was 117.4 MB in the beginning and 159.4 MB in the end (delta: 41.9 MB). Free memory was 64.5 MB in the beginning and 123.9 MB in the end (delta: -59.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:24:17,377 INFO L168 Benchmark]: Witness Printer took 58.92 ms. Allocated memory is still 159.4 MB. Free memory was 123.9 MB in the beginning and 120.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 02:24:17,379 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 117.4 MB. Free memory is still 92.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 638.10 ms. Allocated memory is still 117.4 MB. Free memory was 74.5 MB in the beginning and 80.2 MB in the end (delta: -5.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.14 ms. Allocated memory is still 117.4 MB. Free memory was 80.2 MB in the beginning and 78.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.24 ms. Allocated memory is still 117.4 MB. Free memory was 78.6 MB in the beginning and 77.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 456.48 ms. Allocated memory is still 117.4 MB. Free memory was 77.1 MB in the beginning and 64.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5078.63 ms. Allocated memory was 117.4 MB in the beginning and 159.4 MB in the end (delta: 41.9 MB). Free memory was 64.5 MB in the beginning and 123.9 MB in the end (delta: -59.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 58.92 ms. Allocated memory is still 159.4 MB. Free memory was 123.9 MB in the beginning and 120.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 90 PlacesBefore, 31 PlacesAfterwards, 82 TransitionsBefore, 21 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 71 TotalNumberOfCompositions, 2805 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1523, positive: 1421, positive conditional: 0, positive unconditional: 1421, negative: 102, negative conditional: 0, negative unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 990, positive: 944, positive conditional: 0, positive unconditional: 944, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 990, positive: 929, positive conditional: 0, positive unconditional: 929, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 61, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 139, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 99, negative conditional: 0, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1523, positive: 477, positive conditional: 0, positive unconditional: 477, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 990, unknown conditional: 0, unknown unconditional: 990] , Statistics on independence cache: Total cache size (in pairs): 73, Positive cache size: 55, Positive conditional cache size: 0, Positive unconditional cache size: 55, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - 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: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 105 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 208 SDtfs, 174 SDslu, 218 SDs, 0 SdLazy, 97 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=0, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 170 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 425 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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! [2021-11-07 02:24:17,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a18fcec-b0c4-48de-963c-cf730c8c993c/bin/utaipan-UUZaoUuFF8/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