./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_ec9985dd-e290-41d1-9239-d1c003c96bb3/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9985dd-e290-41d1-9239-d1c003c96bb3/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9985dd-e290-41d1-9239-d1c003c96bb3/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9985dd-e290-41d1-9239-d1c003c96bb3/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9985dd-e290-41d1-9239-d1c003c96bb3/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9985dd-e290-41d1-9239-d1c003c96bb3/bin/utaipan-gh47qXpMRh --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 a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d --- 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-2329fc7 [2022-12-14 14:54:25,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:54:25,693 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:54:25,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:54:25,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:54:25,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:54:25,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:54:25,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:54:25,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:54:25,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:54:25,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:54:25,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:54:25,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:54:25,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:54:25,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:54:25,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:54:25,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:54:25,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:54:25,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:54:25,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:54:25,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:54:25,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:54:25,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:54:25,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:54:25,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:54:25,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:54:25,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:54:25,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:54:25,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:54:25,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:54:25,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:54:25,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:54:25,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:54:25,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:54:25,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:54:25,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:54:25,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:54:25,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:54:25,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:54:25,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:54:25,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:54:25,744 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9985dd-e290-41d1-9239-d1c003c96bb3/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 14:54:25,764 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:54:25,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:54:25,764 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:54:25,765 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:54:25,777 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:54:25,778 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:54:25,778 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:54:25,778 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:54:25,778 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:54:25,778 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:54:25,778 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:54:25,778 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:54:25,778 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:54:25,779 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:54:25,779 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:54:25,779 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:54:25,779 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:54:25,779 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:54:25,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:54:25,780 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:54:25,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:54:25,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:54:25,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:54:25,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:54:25,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:54:25,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:54:25,781 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:54:25,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:54:25,781 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:54:25,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:54:25,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:54:25,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:54:25,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:54:25,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:54:25,782 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:54:25,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:54:25,782 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:54:25,782 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:54:25,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:54:25,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:54:25,782 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:54:25,782 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_ec9985dd-e290-41d1-9239-d1c003c96bb3/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9985dd-e290-41d1-9239-d1c003c96bb3/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d [2022-12-14 14:54:25,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:54:25,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:54:25,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:54:25,971 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:54:25,972 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:54:25,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9985dd-e290-41d1-9239-d1c003c96bb3/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2022-12-14 14:54:28,511 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:54:28,730 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:54:28,731 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9985dd-e290-41d1-9239-d1c003c96bb3/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2022-12-14 14:54:28,747 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9985dd-e290-41d1-9239-d1c003c96bb3/bin/utaipan-gh47qXpMRh/data/4d53c0db9/6b482ce16f83405b9ae44027999b5545/FLAG044938986 [2022-12-14 14:54:29,087 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9985dd-e290-41d1-9239-d1c003c96bb3/bin/utaipan-gh47qXpMRh/data/4d53c0db9/6b482ce16f83405b9ae44027999b5545 [2022-12-14 14:54:29,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:54:29,093 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:54:29,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:54:29,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:54:29,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:54:29,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:54:29" (1/1) ... [2022-12-14 14:54:29,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63cf7527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:29, skipping insertion in model container [2022-12-14 14:54:29,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:54:29" (1/1) ... [2022-12-14 14:54:29,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:54:29,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:54:29,562 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_ec9985dd-e290-41d1-9239-d1c003c96bb3/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2022-12-14 14:54:29,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:54:29,604 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:54:29,634 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_ec9985dd-e290-41d1-9239-d1c003c96bb3/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2022-12-14 14:54:29,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:54:29,743 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:54:29,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:29 WrapperNode [2022-12-14 14:54:29,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:54:29,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:54:29,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:54:29,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:54:29,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:29" (1/1) ... [2022-12-14 14:54:29,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:29" (1/1) ... [2022-12-14 14:54:29,785 INFO L138 Inliner]: procedures = 486, calls = 43, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 201 [2022-12-14 14:54:29,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:54:29,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:54:29,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:54:29,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:54:29,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:29" (1/1) ... [2022-12-14 14:54:29,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:29" (1/1) ... [2022-12-14 14:54:29,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:29" (1/1) ... [2022-12-14 14:54:29,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:29" (1/1) ... [2022-12-14 14:54:29,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:29" (1/1) ... [2022-12-14 14:54:29,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:29" (1/1) ... [2022-12-14 14:54:29,808 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:29" (1/1) ... [2022-12-14 14:54:29,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:29" (1/1) ... [2022-12-14 14:54:29,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:54:29,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:54:29,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:54:29,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:54:29,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:29" (1/1) ... [2022-12-14 14:54:29,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:54:29,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9985dd-e290-41d1-9239-d1c003c96bb3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:54:29,835 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9985dd-e290-41d1-9239-d1c003c96bb3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:54:29,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9985dd-e290-41d1-9239-d1c003c96bb3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:54:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2022-12-14 14:54:29,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2022-12-14 14:54:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:54:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:54:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2022-12-14 14:54:29,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2022-12-14 14:54:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 14:54:29,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:54:29,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 14:54:29,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:54:29,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:54:29,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:54:29,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:54:29,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:54:29,869 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 14:54:30,083 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:54:30,084 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:54:30,278 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:54:30,284 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:54:30,285 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 14:54:30,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:54:30 BoogieIcfgContainer [2022-12-14 14:54:30,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:54:30,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:54:30,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:54:30,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:54:30,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:54:29" (1/3) ... [2022-12-14 14:54:30,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24271022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:54:30, skipping insertion in model container [2022-12-14 14:54:30,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:29" (2/3) ... [2022-12-14 14:54:30,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24271022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:54:30, skipping insertion in model container [2022-12-14 14:54:30,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:54:30" (3/3) ... [2022-12-14 14:54:30,293 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2022-12-14 14:54:30,299 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 14:54:30,307 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:54:30,307 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 14:54:30,307 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 14:54:30,373 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-12-14 14:54:30,400 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 14:54:30,412 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 301 places, 331 transitions, 692 flow [2022-12-14 14:54:30,414 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 301 places, 331 transitions, 692 flow [2022-12-14 14:54:30,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 301 places, 331 transitions, 692 flow [2022-12-14 14:54:30,491 INFO L130 PetriNetUnfolder]: 33/341 cut-off events. [2022-12-14 14:54:30,491 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-14 14:54:30,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 341 events. 33/341 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 850 event pairs, 0 based on Foata normal form. 0/295 useless extension candidates. Maximal degree in co-relation 228. Up to 11 conditions per place. [2022-12-14 14:54:30,502 INFO L119 LiptonReduction]: Number of co-enabled transitions 10804 [2022-12-14 14:54:36,699 INFO L134 LiptonReduction]: Checked pairs total: 13543 [2022-12-14 14:54:36,700 INFO L136 LiptonReduction]: Total number of compositions: 423 [2022-12-14 14:54:36,705 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 56 transitions, 142 flow [2022-12-14 14:54:36,731 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 340 states, 313 states have (on average 3.07667731629393) internal successors, (963), 339 states have internal predecessors, (963), 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) [2022-12-14 14:54:36,745 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:54:36,749 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;@71c3b825, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:54:36,749 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-12-14 14:54:36,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 340 states, 313 states have (on average 3.07667731629393) internal successors, (963), 339 states have internal predecessors, (963), 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) [2022-12-14 14:54:36,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 14:54:36,755 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:54:36,755 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 14:54:36,756 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-14 14:54:36,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:54:36,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1160, now seen corresponding path program 1 times [2022-12-14 14:54:36,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:54:36,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735642175] [2022-12-14 14:54:36,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:54:36,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:54:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:54:36,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:54:36,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:54:36,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735642175] [2022-12-14 14:54:36,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735642175] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:54:36,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:54:36,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 14:54:36,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478644367] [2022-12-14 14:54:36,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:54:36,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:54:36,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:54:36,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:54:36,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:54:36,924 INFO L87 Difference]: Start difference. First operand has 340 states, 313 states have (on average 3.07667731629393) internal successors, (963), 339 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 14:54:36,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:54:36,990 INFO L93 Difference]: Finished difference Result 333 states and 922 transitions. [2022-12-14 14:54:36,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:54:36,991 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-12-14 14:54:36,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:54:37,002 INFO L225 Difference]: With dead ends: 333 [2022-12-14 14:54:37,002 INFO L226 Difference]: Without dead ends: 322 [2022-12-14 14:54:37,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:54:37,005 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:54:37,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:54:37,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-12-14 14:54:37,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2022-12-14 14:54:37,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 305 states have (on average 2.960655737704918) internal successors, (903), 321 states have internal predecessors, (903), 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) [2022-12-14 14:54:37,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 903 transitions. [2022-12-14 14:54:37,048 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 903 transitions. Word has length 1 [2022-12-14 14:54:37,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:54:37,048 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 903 transitions. [2022-12-14 14:54:37,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 14:54:37,048 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 903 transitions. [2022-12-14 14:54:37,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 14:54:37,049 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:54:37,049 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 14:54:37,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:54:37,049 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-14 14:54:37,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:54:37,049 INFO L85 PathProgramCache]: Analyzing trace with hash -505086283, now seen corresponding path program 1 times [2022-12-14 14:54:37,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:54:37,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838616115] [2022-12-14 14:54:37,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:54:37,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:54:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:54:37,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:54:37,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:54:37,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838616115] [2022-12-14 14:54:37,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838616115] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:54:37,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:54:37,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:54:37,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718955243] [2022-12-14 14:54:37,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:54:37,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:54:37,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:54:37,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:54:37,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:54:37,226 INFO L87 Difference]: Start difference. First operand 322 states and 903 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-12-14 14:54:37,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:54:37,339 INFO L93 Difference]: Finished difference Result 620 states and 1800 transitions. [2022-12-14 14:54:37,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:54:37,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2022-12-14 14:54:37,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:54:37,344 INFO L225 Difference]: With dead ends: 620 [2022-12-14 14:54:37,344 INFO L226 Difference]: Without dead ends: 613 [2022-12-14 14:54:37,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:54:37,346 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 48 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:54:37,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 24 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:54:37,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-12-14 14:54:37,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 348. [2022-12-14 14:54:37,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 333 states have (on average 2.93993993993994) internal successors, (979), 347 states have internal predecessors, (979), 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) [2022-12-14 14:54:37,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 979 transitions. [2022-12-14 14:54:37,371 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 979 transitions. Word has length 6 [2022-12-14 14:54:37,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:54:37,372 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 979 transitions. [2022-12-14 14:54:37,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-12-14 14:54:37,372 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 979 transitions. [2022-12-14 14:54:37,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 14:54:37,373 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:54:37,373 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:54:37,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:54:37,374 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-14 14:54:37,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:54:37,374 INFO L85 PathProgramCache]: Analyzing trace with hash -37061253, now seen corresponding path program 1 times [2022-12-14 14:54:37,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:54:37,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570180699] [2022-12-14 14:54:37,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:54:37,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:54:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:54:37,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:54:37,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:54:37,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570180699] [2022-12-14 14:54:37,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570180699] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:54:37,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:54:37,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:54:37,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750833577] [2022-12-14 14:54:37,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:54:37,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:54:37,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:54:37,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:54:37,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:54:37,504 INFO L87 Difference]: Start difference. First operand 348 states and 979 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2022-12-14 14:54:37,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:54:37,575 INFO L93 Difference]: Finished difference Result 317 states and 855 transitions. [2022-12-14 14:54:37,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:54:37,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 [2022-12-14 14:54:37,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:54:37,577 INFO L225 Difference]: With dead ends: 317 [2022-12-14 14:54:37,577 INFO L226 Difference]: Without dead ends: 303 [2022-12-14 14:54:37,577 INFO L412 NwaCegarLoop]: 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 [2022-12-14 14:54:37,578 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 16 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:54:37,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 10 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:54:37,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-12-14 14:54:37,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2022-12-14 14:54:37,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 289 states have (on average 2.8269896193771626) internal successors, (817), 302 states have internal predecessors, (817), 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) [2022-12-14 14:54:37,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 817 transitions. [2022-12-14 14:54:37,586 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 817 transitions. Word has length 8 [2022-12-14 14:54:37,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:54:37,586 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 817 transitions. [2022-12-14 14:54:37,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2022-12-14 14:54:37,586 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 817 transitions. [2022-12-14 14:54:37,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 14:54:37,587 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:54:37,587 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:54:37,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:54:37,587 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbThread1of1ForFork0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-14 14:54:37,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:54:37,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1133167376, now seen corresponding path program 1 times [2022-12-14 14:54:37,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:54:37,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310838107] [2022-12-14 14:54:37,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:54:37,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:54:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:54:37,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:54:37,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:54:37,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310838107] [2022-12-14 14:54:37,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310838107] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:54:37,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:54:37,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:54:37,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744309214] [2022-12-14 14:54:37,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:54:37,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:54:37,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:54:37,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:54:37,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:54:37,639 INFO L87 Difference]: Start difference. First operand 303 states and 817 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:54:37,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:54:37,693 INFO L93 Difference]: Finished difference Result 268 states and 675 transitions. [2022-12-14 14:54:37,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:54:37,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 14:54:37,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:54:37,695 INFO L225 Difference]: With dead ends: 268 [2022-12-14 14:54:37,695 INFO L226 Difference]: Without dead ends: 257 [2022-12-14 14:54:37,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:54:37,695 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 13 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:54:37,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 7 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:54:37,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-12-14 14:54:37,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2022-12-14 14:54:37,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 247 states have (on average 2.591093117408907) internal successors, (640), 256 states have internal predecessors, (640), 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) [2022-12-14 14:54:37,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 640 transitions. [2022-12-14 14:54:37,701 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 640 transitions. Word has length 9 [2022-12-14 14:54:37,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:54:37,701 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 640 transitions. [2022-12-14 14:54:37,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:54:37,702 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 640 transitions. [2022-12-14 14:54:37,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 14:54:37,702 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:54:37,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:54:37,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:54:37,703 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-14 14:54:37,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:54:37,703 INFO L85 PathProgramCache]: Analyzing trace with hash -783562071, now seen corresponding path program 1 times [2022-12-14 14:54:37,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:54:37,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409459221] [2022-12-14 14:54:37,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:54:37,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:54:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:54:37,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:54:37,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:54:37,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409459221] [2022-12-14 14:54:37,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409459221] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:54:37,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:54:37,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:54:37,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237076754] [2022-12-14 14:54:37,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:54:37,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:54:37,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:54:37,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:54:37,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:54:37,766 INFO L87 Difference]: Start difference. First operand 257 states and 640 transitions. Second operand has 3 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) [2022-12-14 14:54:37,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:54:37,814 INFO L93 Difference]: Finished difference Result 116 states and 288 transitions. [2022-12-14 14:54:37,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:54:37,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 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 [2022-12-14 14:54:37,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:54:37,816 INFO L225 Difference]: With dead ends: 116 [2022-12-14 14:54:37,816 INFO L226 Difference]: Without dead ends: 89 [2022-12-14 14:54:37,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:54:37,817 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:54:37,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 8 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:54:37,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-12-14 14:54:37,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-12-14 14:54:37,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 88 states have (on average 2.4545454545454546) internal successors, (216), 88 states have internal predecessors, (216), 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) [2022-12-14 14:54:37,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 216 transitions. [2022-12-14 14:54:37,820 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 216 transitions. Word has length 10 [2022-12-14 14:54:37,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:54:37,820 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 216 transitions. [2022-12-14 14:54:37,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2022-12-14 14:54:37,820 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 216 transitions. [2022-12-14 14:54:37,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 14:54:37,820 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:54:37,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:54:37,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 14:54:37,821 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-14 14:54:37,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:54:37,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1985454710, now seen corresponding path program 1 times [2022-12-14 14:54:37,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:54:37,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059298096] [2022-12-14 14:54:37,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:54:37,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:54:37,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:54:37,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:54:37,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:54:37,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059298096] [2022-12-14 14:54:37,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059298096] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:54:37,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:54:37,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:54:37,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343597951] [2022-12-14 14:54:37,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:54:37,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:54:37,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:54:37,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:54:37,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:54:37,892 INFO L87 Difference]: Start difference. First operand 89 states and 216 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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) [2022-12-14 14:54:37,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:54:37,927 INFO L93 Difference]: Finished difference Result 88 states and 215 transitions. [2022-12-14 14:54:37,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:54:37,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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 [2022-12-14 14:54:37,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:54:37,927 INFO L225 Difference]: With dead ends: 88 [2022-12-14 14:54:37,927 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 14:54:37,928 INFO L412 NwaCegarLoop]: 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 [2022-12-14 14:54:37,928 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:54:37,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:54:37,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 14:54:37,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 14:54:37,929 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) [2022-12-14 14:54:37,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 14:54:37,930 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-12-14 14:54:37,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:54:37,930 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 14:54:37,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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) [2022-12-14 14:54:37,930 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 14:54:37,930 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 14:54:37,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 12 remaining) [2022-12-14 14:54:37,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 12 remaining) [2022-12-14 14:54:37,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (9 of 12 remaining) [2022-12-14 14:54:37,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (8 of 12 remaining) [2022-12-14 14:54:37,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2022-12-14 14:54:37,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 12 remaining) [2022-12-14 14:54:37,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 12 remaining) [2022-12-14 14:54:37,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2022-12-14 14:54:37,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 12 remaining) [2022-12-14 14:54:37,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 12 remaining) [2022-12-14 14:54:37,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 12 remaining) [2022-12-14 14:54:37,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2022-12-14 14:54:37,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 14:54:37,936 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-14 14:54:37,941 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 14:54:37,941 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:54:37,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:54:37 BasicIcfg [2022-12-14 14:54:37,943 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:54:37,944 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:54:37,944 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:54:37,944 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:54:37,944 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:54:30" (3/4) ... [2022-12-14 14:54:37,946 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 14:54:37,952 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2022-12-14 14:54:37,952 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_usb [2022-12-14 14:54:37,956 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-12-14 14:54:37,956 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 14:54:37,956 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 14:54:37,956 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 14:54:37,981 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9985dd-e290-41d1-9239-d1c003c96bb3/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 14:54:37,981 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:54:37,981 INFO L158 Benchmark]: Toolchain (without parser) took 8888.73ms. Allocated memory was 134.2MB in the beginning and 205.5MB in the end (delta: 71.3MB). Free memory was 96.5MB in the beginning and 52.8MB in the end (delta: 43.7MB). Peak memory consumption was 117.1MB. Max. memory is 16.1GB. [2022-12-14 14:54:37,981 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 134.2MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:54:37,982 INFO L158 Benchmark]: CACSL2BoogieTranslator took 649.27ms. Allocated memory was 134.2MB in the beginning and 205.5MB in the end (delta: 71.3MB). Free memory was 96.0MB in the beginning and 168.0MB in the end (delta: -72.0MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. [2022-12-14 14:54:37,982 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.66ms. Allocated memory is still 205.5MB. Free memory was 168.0MB in the beginning and 164.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:54:37,982 INFO L158 Benchmark]: Boogie Preprocessor took 27.74ms. Allocated memory is still 205.5MB. Free memory was 164.9MB in the beginning and 161.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 14:54:37,982 INFO L158 Benchmark]: RCFGBuilder took 473.09ms. Allocated memory is still 205.5MB. Free memory was 161.8MB in the beginning and 136.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-14 14:54:37,982 INFO L158 Benchmark]: TraceAbstraction took 7654.76ms. Allocated memory is still 205.5MB. Free memory was 135.6MB in the beginning and 56.0MB in the end (delta: 79.6MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. [2022-12-14 14:54:37,982 INFO L158 Benchmark]: Witness Printer took 37.26ms. Allocated memory is still 205.5MB. Free memory was 56.0MB in the beginning and 52.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:54:37,984 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 134.2MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 649.27ms. Allocated memory was 134.2MB in the beginning and 205.5MB in the end (delta: 71.3MB). Free memory was 96.0MB in the beginning and 168.0MB in the end (delta: -72.0MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.66ms. Allocated memory is still 205.5MB. Free memory was 168.0MB in the beginning and 164.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.74ms. Allocated memory is still 205.5MB. Free memory was 164.9MB in the beginning and 161.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 473.09ms. Allocated memory is still 205.5MB. Free memory was 161.8MB in the beginning and 136.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 7654.76ms. Allocated memory is still 205.5MB. Free memory was 135.6MB in the beginning and 56.0MB in the end (delta: 79.6MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. * Witness Printer took 37.26ms. Allocated memory is still 205.5MB. Free memory was 56.0MB in the beginning and 52.8MB 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: 6.3s, 301 PlacesBefore, 48 PlacesAfterwards, 331 TransitionsBefore, 56 TransitionsAfterwards, 10804 CoEnabledTransitionPairs, 8 FixpointIterations, 165 TrivialSequentialCompositions, 154 ConcurrentSequentialCompositions, 30 TrivialYvCompositions, 52 ConcurrentYvCompositions, 22 ChoiceCompositions, 423 TotalNumberOfCompositions, 13543 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11857, independent: 11745, independent conditional: 0, independent unconditional: 11745, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8240, independent: 8199, independent conditional: 0, independent unconditional: 8199, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8240, independent: 8177, independent conditional: 0, independent unconditional: 8177, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 63, independent: 22, independent conditional: 0, independent unconditional: 22, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 144, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 116, dependent conditional: 0, dependent unconditional: 116, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 11857, independent: 3546, independent conditional: 0, independent unconditional: 3546, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 8240, unknown conditional: 0, unknown unconditional: 8240] , Statistics on independence cache: Total cache size (in pairs): 141, Positive cache size: 130, Positive conditional cache size: 0, Positive unconditional cache size: 130, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, 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: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: 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 5 procedures, 328 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 7.5s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 59 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 407 IncrementalHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 33 mSDtfsCounter, 407 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=348occurred in iteration=2, InterpolantAutomatonStates: 19, 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, 6 MinimizatonAttempts, 265 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 57 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 2/2 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 14:54:38,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec9985dd-e290-41d1-9239-d1c003c96bb3/bin/utaipan-gh47qXpMRh/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