./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef9dc3a-b95b-4613-9d2c-4ae77121b9cb/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef9dc3a-b95b-4613-9d2c-4ae77121b9cb/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef9dc3a-b95b-4613-9d2c-4ae77121b9cb/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef9dc3a-b95b-4613-9d2c-4ae77121b9cb/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef9dc3a-b95b-4613-9d2c-4ae77121b9cb/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef9dc3a-b95b-4613-9d2c-4ae77121b9cb/bin/utaipan-ByfvJB40ur --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 4221a6bcee4165c3049aa9b16a70613c9e290b9c0a4ff35026a6f2dcff16f9ff --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:07:44,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:07:44,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:07:44,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:07:44,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:07:44,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:07:44,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:07:44,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:07:44,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:07:44,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:07:44,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:07:44,528 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:07:44,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:07:44,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:07:44,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:07:44,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:07:44,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:07:44,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:07:44,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:07:44,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:07:44,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:07:44,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:07:44,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:07:44,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:07:44,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:07:44,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:07:44,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:07:44,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:07:44,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:07:44,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:07:44,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:07:44,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:07:44,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:07:44,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:07:44,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:07:44,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:07:44,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:07:44,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:07:44,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:07:44,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:07:44,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:07:44,590 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef9dc3a-b95b-4613-9d2c-4ae77121b9cb/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:07:44,659 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:07:44,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:07:44,661 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:07:44,661 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:07:44,662 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:07:44,663 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:07:44,663 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:07:44,664 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:07:44,664 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:07:44,664 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:07:44,666 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:07:44,666 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:07:44,667 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:07:44,667 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:07:44,667 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:07:44,668 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:07:44,668 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:07:44,668 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:07:44,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:07:44,670 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:07:44,670 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:07:44,671 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:07:44,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:07:44,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:07:44,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:07:44,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:07:44,672 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:07:44,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:07:44,673 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:07:44,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:07:44,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:07:44,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:07:44,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:07:44,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:07:44,676 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:07:44,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:07:44,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:07:44,677 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:07:44,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:07:44,678 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:07:44,678 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:07:44,678 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_aef9dc3a-b95b-4613-9d2c-4ae77121b9cb/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef9dc3a-b95b-4613-9d2c-4ae77121b9cb/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4221a6bcee4165c3049aa9b16a70613c9e290b9c0a4ff35026a6f2dcff16f9ff [2022-11-26 00:07:45,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:07:45,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:07:45,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:07:45,069 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:07:45,069 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:07:45,071 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef9dc3a-b95b-4613-9d2c-4ae77121b9cb/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c [2022-11-26 00:07:48,365 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:07:48,602 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:07:48,603 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef9dc3a-b95b-4613-9d2c-4ae77121b9cb/sv-benchmarks/c/weaver/chl-match-trans.wvr.c [2022-11-26 00:07:48,612 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef9dc3a-b95b-4613-9d2c-4ae77121b9cb/bin/utaipan-ByfvJB40ur/data/1cf9f9d00/7b980f443fc242a9aeff09bf796fa7b4/FLAG167770a7f [2022-11-26 00:07:48,629 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef9dc3a-b95b-4613-9d2c-4ae77121b9cb/bin/utaipan-ByfvJB40ur/data/1cf9f9d00/7b980f443fc242a9aeff09bf796fa7b4 [2022-11-26 00:07:48,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:07:48,634 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:07:48,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:07:48,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:07:48,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:07:48,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:07:48" (1/1) ... [2022-11-26 00:07:48,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dcb1f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:48, skipping insertion in model container [2022-11-26 00:07:48,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:07:48" (1/1) ... [2022-11-26 00:07:48,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:07:48,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:07:48,897 WARN L237 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_aef9dc3a-b95b-4613-9d2c-4ae77121b9cb/sv-benchmarks/c/weaver/chl-match-trans.wvr.c[2954,2967] [2022-11-26 00:07:48,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:07:48,918 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:07:48,949 WARN L237 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_aef9dc3a-b95b-4613-9d2c-4ae77121b9cb/sv-benchmarks/c/weaver/chl-match-trans.wvr.c[2954,2967] [2022-11-26 00:07:48,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:07:48,968 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:07:48,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:48 WrapperNode [2022-11-26 00:07:48,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:07:48,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:07:48,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:07:48,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:07:48,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:48" (1/1) ... [2022-11-26 00:07:48,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:48" (1/1) ... [2022-11-26 00:07:49,018 INFO L138 Inliner]: procedures = 23, calls = 33, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 202 [2022-11-26 00:07:49,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:07:49,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:07:49,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:07:49,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:07:49,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:48" (1/1) ... [2022-11-26 00:07:49,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:48" (1/1) ... [2022-11-26 00:07:49,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:48" (1/1) ... [2022-11-26 00:07:49,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:48" (1/1) ... [2022-11-26 00:07:49,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:48" (1/1) ... [2022-11-26 00:07:49,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:48" (1/1) ... [2022-11-26 00:07:49,048 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:48" (1/1) ... [2022-11-26 00:07:49,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:48" (1/1) ... [2022-11-26 00:07:49,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:07:49,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:07:49,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:07:49,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:07:49,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:48" (1/1) ... [2022-11-26 00:07:49,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:07:49,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef9dc3a-b95b-4613-9d2c-4ae77121b9cb/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:07:49,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef9dc3a-b95b-4613-9d2c-4ae77121b9cb/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:07:49,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef9dc3a-b95b-4613-9d2c-4ae77121b9cb/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:07:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:07:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-26 00:07:49,151 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-26 00:07:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-26 00:07:49,152 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-26 00:07:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-26 00:07:49,152 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-26 00:07:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:07:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:07:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:07:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:07:49,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:07:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:07:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:07:49,155 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:07:49,274 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:07:49,276 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:07:49,889 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:07:49,917 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:07:49,926 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:07:49,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:07:49 BoogieIcfgContainer [2022-11-26 00:07:49,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:07:49,935 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:07:49,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:07:49,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:07:49,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:07:48" (1/3) ... [2022-11-26 00:07:49,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261e95f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:07:49, skipping insertion in model container [2022-11-26 00:07:49,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:48" (2/3) ... [2022-11-26 00:07:49,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261e95f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:07:49, skipping insertion in model container [2022-11-26 00:07:49,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:07:49" (3/3) ... [2022-11-26 00:07:49,947 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-trans.wvr.c [2022-11-26 00:07:49,957 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:07:49,968 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:07:49,968 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:07:49,968 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:07:50,127 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-26 00:07:50,174 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:07:50,194 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 278 places, 281 transitions, 586 flow [2022-11-26 00:07:50,198 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 278 places, 281 transitions, 586 flow [2022-11-26 00:07:50,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 278 places, 281 transitions, 586 flow [2022-11-26 00:07:50,406 INFO L130 PetriNetUnfolder]: 13/278 cut-off events. [2022-11-26 00:07:50,406 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-26 00:07:50,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 278 events. 13/278 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 408 event pairs, 0 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 196. Up to 2 conditions per place. [2022-11-26 00:07:50,439 INFO L119 LiptonReduction]: Number of co-enabled transitions 25134 [2022-11-26 00:08:03,050 INFO L134 LiptonReduction]: Checked pairs total: 21411 [2022-11-26 00:08:03,051 INFO L136 LiptonReduction]: Total number of compositions: 324 [2022-11-26 00:08:03,061 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 64 flow [2022-11-26 00:08:03,081 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:08:03,104 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:08:03,112 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5a1bd206, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:08:03,113 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-26 00:08:03,115 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:08:03,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:08:03,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:03,123 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:08:03,124 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-26 00:08:03,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:03,131 INFO L85 PathProgramCache]: Analyzing trace with hash 549892131, now seen corresponding path program 1 times [2022-11-26 00:08:03,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:03,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767497647] [2022-11-26 00:08:03,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:03,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:04,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:08:04,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:04,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767497647] [2022-11-26 00:08:04,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767497647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:08:04,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:08:04,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:08:04,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784916798] [2022-11-26 00:08:04,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:08:04,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:08:04,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:04,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:08:04,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:08:04,755 INFO L87 Difference]: Start difference. First operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:08:05,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:08:05,034 INFO L93 Difference]: Finished difference Result 67 states and 106 transitions. [2022-11-26 00:08:05,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:08:05,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-26 00:08:05,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:08:05,045 INFO L225 Difference]: With dead ends: 67 [2022-11-26 00:08:05,045 INFO L226 Difference]: Without dead ends: 52 [2022-11-26 00:08:05,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:08:05,050 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 30 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:08:05,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 0 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:08:05,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-26 00:08:05,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2022-11-26 00:08:05,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 43 states have internal predecessors, (74), 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) [2022-11-26 00:08:05,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 74 transitions. [2022-11-26 00:08:05,095 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 74 transitions. Word has length 16 [2022-11-26 00:08:05,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:08:05,096 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 74 transitions. [2022-11-26 00:08:05,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:08:05,097 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 74 transitions. [2022-11-26 00:08:05,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:08:05,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:05,098 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:08:05,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:08:05,099 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-26 00:08:05,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:05,100 INFO L85 PathProgramCache]: Analyzing trace with hash -2019564225, now seen corresponding path program 2 times [2022-11-26 00:08:05,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:05,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893128350] [2022-11-26 00:08:05,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:05,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:05,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:08:05,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:05,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893128350] [2022-11-26 00:08:05,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893128350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:08:05,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:08:05,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:08:05,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732300448] [2022-11-26 00:08:05,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:08:05,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:08:05,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:05,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:08:05,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:08:05,863 INFO L87 Difference]: Start difference. First operand 44 states and 74 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:08:06,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:08:06,081 INFO L93 Difference]: Finished difference Result 63 states and 94 transitions. [2022-11-26 00:08:06,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:08:06,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-26 00:08:06,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:08:06,083 INFO L225 Difference]: With dead ends: 63 [2022-11-26 00:08:06,083 INFO L226 Difference]: Without dead ends: 44 [2022-11-26 00:08:06,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:08:06,085 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:08:06,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 0 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:08:06,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-26 00:08:06,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2022-11-26 00:08:06,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:08:06,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2022-11-26 00:08:06,093 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 57 transitions. Word has length 16 [2022-11-26 00:08:06,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:08:06,093 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 57 transitions. [2022-11-26 00:08:06,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:08:06,094 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 57 transitions. [2022-11-26 00:08:06,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:08:06,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:06,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:08:06,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:08:06,096 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-26 00:08:06,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:06,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1608291733, now seen corresponding path program 3 times [2022-11-26 00:08:06,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:06,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809496646] [2022-11-26 00:08:06,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:06,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:06,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:08:06,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:06,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809496646] [2022-11-26 00:08:06,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809496646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:08:06,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:08:06,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:08:06,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066194134] [2022-11-26 00:08:06,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:08:06,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:08:06,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:06,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:08:06,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:08:06,724 INFO L87 Difference]: Start difference. First operand 36 states and 57 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:08:06,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:08:06,951 INFO L93 Difference]: Finished difference Result 51 states and 70 transitions. [2022-11-26 00:08:06,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:08:06,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-26 00:08:06,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:08:06,953 INFO L225 Difference]: With dead ends: 51 [2022-11-26 00:08:06,953 INFO L226 Difference]: Without dead ends: 36 [2022-11-26 00:08:06,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:08:06,955 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 32 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:08:06,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 0 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:08:06,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-26 00:08:06,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2022-11-26 00:08:06,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 27 states have internal predecessors, (40), 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) [2022-11-26 00:08:06,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 40 transitions. [2022-11-26 00:08:06,960 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 40 transitions. Word has length 16 [2022-11-26 00:08:06,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:08:06,960 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 40 transitions. [2022-11-26 00:08:06,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:08:06,961 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2022-11-26 00:08:06,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:08:06,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:06,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:08:06,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:08:06,969 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-26 00:08:06,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:06,970 INFO L85 PathProgramCache]: Analyzing trace with hash -420154105, now seen corresponding path program 4 times [2022-11-26 00:08:06,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:06,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538758301] [2022-11-26 00:08:06,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:06,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:07,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:07,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:08:07,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:07,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538758301] [2022-11-26 00:08:07,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538758301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:08:07,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:08:07,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:08:07,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506963133] [2022-11-26 00:08:07,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:08:07,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:08:07,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:07,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:08:07,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:08:07,697 INFO L87 Difference]: Start difference. First operand 28 states and 40 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:08:07,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:08:07,910 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2022-11-26 00:08:07,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:08:07,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-26 00:08:07,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:08:07,911 INFO L225 Difference]: With dead ends: 37 [2022-11-26 00:08:07,911 INFO L226 Difference]: Without dead ends: 24 [2022-11-26 00:08:07,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:08:07,913 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:08:07,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 0 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:08:07,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-26 00:08:07,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-26 00:08:07,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 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) [2022-11-26 00:08:07,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2022-11-26 00:08:07,917 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 16 [2022-11-26 00:08:07,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:08:07,917 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2022-11-26 00:08:07,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:08:07,918 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2022-11-26 00:08:07,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:08:07,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:07,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:08:07,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:08:07,919 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-26 00:08:07,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:07,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1549511509, now seen corresponding path program 5 times [2022-11-26 00:08:07,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:07,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689474486] [2022-11-26 00:08:07,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:07,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:08,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:08:08,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:08,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689474486] [2022-11-26 00:08:08,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689474486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:08:08,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:08:08,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:08:08,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252744250] [2022-11-26 00:08:08,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:08:08,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:08:08,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:08,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:08:08,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:08:08,530 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:08:08,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:08:08,712 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2022-11-26 00:08:08,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:08:08,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-26 00:08:08,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:08:08,714 INFO L225 Difference]: With dead ends: 31 [2022-11-26 00:08:08,714 INFO L226 Difference]: Without dead ends: 20 [2022-11-26 00:08:08,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:08:08,715 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:08:08,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 0 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:08:08,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-26 00:08:08,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-26 00:08:08,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 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) [2022-11-26 00:08:08,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-11-26 00:08:08,719 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 16 [2022-11-26 00:08:08,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:08:08,720 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-11-26 00:08:08,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:08:08,720 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-11-26 00:08:08,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:08:08,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:08,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:08:08,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:08:08,727 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-26 00:08:08,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:08,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1531077483, now seen corresponding path program 6 times [2022-11-26 00:08:08,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:08,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352379932] [2022-11-26 00:08:08,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:08,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:09,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:08:09,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:09,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352379932] [2022-11-26 00:08:09,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352379932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:08:09,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:08:09,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:08:09,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829096041] [2022-11-26 00:08:09,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:08:09,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:08:09,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:09,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:08:09,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:08:09,336 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:08:09,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:08:09,492 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-11-26 00:08:09,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:08:09,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-26 00:08:09,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:08:09,494 INFO L225 Difference]: With dead ends: 19 [2022-11-26 00:08:09,494 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:08:09,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:08:09,495 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:08:09,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 0 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:08:09,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:08:09,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:08:09,497 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) [2022-11-26 00:08:09,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:08:09,497 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2022-11-26 00:08:09,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:08:09,497 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:08:09,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:08:09,498 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:08:09,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:08:09,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-11-26 00:08:09,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-26 00:08:09,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-11-26 00:08:09,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-11-26 00:08:09,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:08:09,505 INFO L445 BasicCegarLoop]: Path program histogram: [6] [2022-11-26 00:08:09,509 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:08:09,509 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:08:09,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:08:09 BasicIcfg [2022-11-26 00:08:09,512 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:08:09,513 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:08:09,513 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:08:09,513 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:08:09,514 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:07:49" (3/4) ... [2022-11-26 00:08:09,517 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:08:09,526 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-26 00:08:09,526 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-26 00:08:09,526 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-26 00:08:09,532 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-26 00:08:09,532 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-26 00:08:09,533 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-26 00:08:09,533 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-26 00:08:09,585 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef9dc3a-b95b-4613-9d2c-4ae77121b9cb/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:08:09,585 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:08:09,586 INFO L158 Benchmark]: Toolchain (without parser) took 20951.90ms. Allocated memory was 153.1MB in the beginning and 224.4MB in the end (delta: 71.3MB). Free memory was 107.7MB in the beginning and 122.2MB in the end (delta: -14.5MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2022-11-26 00:08:09,586 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 153.1MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:08:09,587 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.12ms. Allocated memory is still 153.1MB. Free memory was 107.7MB in the beginning and 96.4MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-26 00:08:09,587 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.10ms. Allocated memory is still 153.1MB. Free memory was 96.4MB in the beginning and 93.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:08:09,588 INFO L158 Benchmark]: Boogie Preprocessor took 34.23ms. Allocated memory is still 153.1MB. Free memory was 93.6MB in the beginning and 92.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:08:09,588 INFO L158 Benchmark]: RCFGBuilder took 876.93ms. Allocated memory is still 153.1MB. Free memory was 92.3MB in the beginning and 71.2MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-26 00:08:09,589 INFO L158 Benchmark]: TraceAbstraction took 19577.42ms. Allocated memory was 153.1MB in the beginning and 224.4MB in the end (delta: 71.3MB). Free memory was 70.6MB in the beginning and 125.3MB in the end (delta: -54.7MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2022-11-26 00:08:09,589 INFO L158 Benchmark]: Witness Printer took 72.75ms. Allocated memory is still 224.4MB. Free memory was 125.3MB in the beginning and 122.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:08:09,592 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 153.1MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.12ms. Allocated memory is still 153.1MB. Free memory was 107.7MB in the beginning and 96.4MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.10ms. Allocated memory is still 153.1MB. Free memory was 96.4MB in the beginning and 93.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.23ms. Allocated memory is still 153.1MB. Free memory was 93.6MB in the beginning and 92.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 876.93ms. Allocated memory is still 153.1MB. Free memory was 92.3MB in the beginning and 71.2MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 19577.42ms. Allocated memory was 153.1MB in the beginning and 224.4MB in the end (delta: 71.3MB). Free memory was 70.6MB in the beginning and 125.3MB in the end (delta: -54.7MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * Witness Printer took 72.75ms. Allocated memory is still 224.4MB. Free memory was 125.3MB in the beginning and 122.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.9s, 278 PlacesBefore, 30 PlacesAfterwards, 281 TransitionsBefore, 20 TransitionsAfterwards, 25134 CoEnabledTransitionPairs, 8 FixpointIterations, 76 TrivialSequentialCompositions, 175 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 58 ConcurrentYvCompositions, 13 ChoiceCompositions, 324 TotalNumberOfCompositions, 21411 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 21411, independent: 21411, independent conditional: 0, independent unconditional: 21411, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18917, independent: 18917, independent conditional: 0, independent unconditional: 18917, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18917, independent: 18917, independent conditional: 0, independent unconditional: 18917, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 21411, independent: 2494, independent conditional: 0, independent unconditional: 2494, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 18917, unknown conditional: 0, unknown unconditional: 18917] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 88]: 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, 440 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 19.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 180 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 180 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 396 IncrementalHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 396 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 1289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-26 00:08:09,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef9dc3a-b95b-4613-9d2c-4ae77121b9cb/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE