./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_93ad3a5a-aab2-49ae-af6e-8dd7aa260c0c/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ad3a5a-aab2-49ae-af6e-8dd7aa260c0c/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ad3a5a-aab2-49ae-af6e-8dd7aa260c0c/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ad3a5a-aab2-49ae-af6e-8dd7aa260c0c/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ad3a5a-aab2-49ae-af6e-8dd7aa260c0c/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ad3a5a-aab2-49ae-af6e-8dd7aa260c0c/bin/utaipan-g80aRyZoba --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 c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 --- 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-b5237d8 [2022-11-22 02:22:29,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:22:29,578 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:22:29,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:22:29,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:22:29,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:22:29,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:22:29,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:22:29,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:22:29,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:22:29,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:22:29,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:22:29,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:22:29,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:22:29,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:22:29,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:22:29,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:22:29,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:22:29,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:22:29,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:22:29,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:22:29,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:22:29,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:22:29,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:22:29,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:22:29,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:22:29,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:22:29,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:22:29,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:22:29,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:22:29,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:22:29,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:22:29,649 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:22:29,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:22:29,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:22:29,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:22:29,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:22:29,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:22:29,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:22:29,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:22:29,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:22:29,657 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ad3a5a-aab2-49ae-af6e-8dd7aa260c0c/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 02:22:29,696 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:22:29,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:22:29,697 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:22:29,697 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:22:29,698 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:22:29,698 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:22:29,698 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:22:29,699 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:22:29,699 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:22:29,699 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:22:29,699 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:22:29,699 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:22:29,700 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:22:29,700 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:22:29,700 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:22:29,700 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:22:29,700 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:22:29,701 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:22:29,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:22:29,702 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:22:29,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:22:29,703 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:22:29,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:22:29,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:22:29,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:22:29,704 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:22:29,704 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:22:29,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:22:29,704 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:22:29,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:22:29,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:22:29,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:22:29,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:22:29,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:22:29,706 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:22:29,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:22:29,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:22:29,706 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:22:29,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:22:29,707 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:22:29,707 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:22:29,707 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_93ad3a5a-aab2-49ae-af6e-8dd7aa260c0c/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ad3a5a-aab2-49ae-af6e-8dd7aa260c0c/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 [2022-11-22 02:22:29,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:22:29,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:22:29,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:22:29,981 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:22:29,981 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:22:29,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ad3a5a-aab2-49ae-af6e-8dd7aa260c0c/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-22 02:22:33,020 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:22:33,367 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:22:33,368 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ad3a5a-aab2-49ae-af6e-8dd7aa260c0c/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-22 02:22:33,393 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ad3a5a-aab2-49ae-af6e-8dd7aa260c0c/bin/utaipan-g80aRyZoba/data/1b7adc4b4/f1fd7a93a75144e9bfd466dcc3ead3a9/FLAGd50bf6f0f [2022-11-22 02:22:33,409 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ad3a5a-aab2-49ae-af6e-8dd7aa260c0c/bin/utaipan-g80aRyZoba/data/1b7adc4b4/f1fd7a93a75144e9bfd466dcc3ead3a9 [2022-11-22 02:22:33,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:22:33,417 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:22:33,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:22:33,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:22:33,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:22:33,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:22:33" (1/1) ... [2022-11-22 02:22:33,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ad5266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:33, skipping insertion in model container [2022-11-22 02:22:33,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:22:33" (1/1) ... [2022-11-22 02:22:33,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:22:33,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:22:33,645 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 02:22:34,209 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_93ad3a5a-aab2-49ae-af6e-8dd7aa260c0c/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-22 02:22:34,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:22:34,263 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:22:34,276 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 02:22:34,341 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_93ad3a5a-aab2-49ae-af6e-8dd7aa260c0c/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-22 02:22:34,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:22:34,493 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:22:34,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:34 WrapperNode [2022-11-22 02:22:34,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:22:34,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:22:34,496 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:22:34,496 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:22:34,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:34" (1/1) ... [2022-11-22 02:22:34,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:34" (1/1) ... [2022-11-22 02:22:34,558 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-11-22 02:22:34,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:22:34,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:22:34,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:22:34,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:22:34,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:34" (1/1) ... [2022-11-22 02:22:34,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:34" (1/1) ... [2022-11-22 02:22:34,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:34" (1/1) ... [2022-11-22 02:22:34,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:34" (1/1) ... [2022-11-22 02:22:34,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:34" (1/1) ... [2022-11-22 02:22:34,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:34" (1/1) ... [2022-11-22 02:22:34,628 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:34" (1/1) ... [2022-11-22 02:22:34,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:34" (1/1) ... [2022-11-22 02:22:34,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:22:34,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:22:34,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:22:34,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:22:34,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:34" (1/1) ... [2022-11-22 02:22:34,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:22:34,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ad3a5a-aab2-49ae-af6e-8dd7aa260c0c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:22:34,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ad3a5a-aab2-49ae-af6e-8dd7aa260c0c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:22:34,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ad3a5a-aab2-49ae-af6e-8dd7aa260c0c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:22:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-22 02:22:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:22:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-22 02:22:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:22:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 02:22:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:22:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:22:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:22:34,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:22:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-22 02:22:34,769 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-22 02:22:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:22:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:22:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:22:34,771 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 02:22:35,092 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:22:35,095 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:22:35,359 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:22:35,426 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:22:35,430 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 02:22:35,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:22:35 BoogieIcfgContainer [2022-11-22 02:22:35,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:22:35,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:22:35,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:22:35,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:22:35,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:22:33" (1/3) ... [2022-11-22 02:22:35,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b630d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:22:35, skipping insertion in model container [2022-11-22 02:22:35,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:34" (2/3) ... [2022-11-22 02:22:35,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b630d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:22:35, skipping insertion in model container [2022-11-22 02:22:35,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:22:35" (3/3) ... [2022-11-22 02:22:35,446 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2022-11-22 02:22:35,457 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 02:22:35,469 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:22:35,469 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-22 02:22:35,469 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 02:22:35,596 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-22 02:22:35,646 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:22:35,668 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 175 transitions, 366 flow [2022-11-22 02:22:35,677 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 175 transitions, 366 flow [2022-11-22 02:22:35,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 175 transitions, 366 flow [2022-11-22 02:22:35,771 INFO L130 PetriNetUnfolder]: 8/220 cut-off events. [2022-11-22 02:22:35,771 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-22 02:22:35,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 220 events. 8/220 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 374 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2022-11-22 02:22:35,781 INFO L119 LiptonReduction]: Number of co-enabled transitions 3380 [2022-11-22 02:23:33,483 INFO L134 LiptonReduction]: Checked pairs total: 8258 [2022-11-22 02:23:33,483 INFO L136 LiptonReduction]: Total number of compositions: 181 [2022-11-22 02:23:33,496 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 41 transitions, 98 flow [2022-11-22 02:23:33,553 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 439 states, 429 states have (on average 2.554778554778555) internal successors, (1096), 438 states have internal predecessors, (1096), 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) [2022-11-22 02:23:33,571 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:23:33,577 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;@6ad20226, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:23:33,577 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-22 02:23:33,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 439 states, 429 states have (on average 2.554778554778555) internal successors, (1096), 438 states have internal predecessors, (1096), 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) [2022-11-22 02:23:33,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 02:23:33,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:33,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 02:23:33,588 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-22 02:23:33,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:33,593 INFO L85 PathProgramCache]: Analyzing trace with hash 20426768, now seen corresponding path program 1 times [2022-11-22 02:23:33,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:33,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138473532] [2022-11-22 02:23:33,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:33,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:33,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:34,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:34,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:34,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138473532] [2022-11-22 02:23:34,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138473532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:34,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:34,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:23:34,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110543089] [2022-11-22 02:23:34,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:34,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:23:34,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:34,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:23:34,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:23:34,364 INFO L87 Difference]: Start difference. First operand has 439 states, 429 states have (on average 2.554778554778555) internal successors, (1096), 438 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-22 02:23:34,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:34,568 INFO L93 Difference]: Finished difference Result 594 states and 1466 transitions. [2022-11-22 02:23:34,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:23:34,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-22 02:23:34,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:34,586 INFO L225 Difference]: With dead ends: 594 [2022-11-22 02:23:34,587 INFO L226 Difference]: Without dead ends: 557 [2022-11-22 02:23:34,587 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 [2022-11-22 02:23:34,591 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:34,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:23:34,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-11-22 02:23:34,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 461. [2022-11-22 02:23:34,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 454 states have (on average 2.460352422907489) internal successors, (1117), 460 states have internal predecessors, (1117), 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) [2022-11-22 02:23:34,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 1117 transitions. [2022-11-22 02:23:34,669 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 1117 transitions. Word has length 4 [2022-11-22 02:23:34,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:34,670 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 1117 transitions. [2022-11-22 02:23:34,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-22 02:23:34,670 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 1117 transitions. [2022-11-22 02:23:34,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 02:23:34,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:34,671 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 02:23:34,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:23:34,672 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-22 02:23:34,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:34,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1844714071, now seen corresponding path program 1 times [2022-11-22 02:23:34,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:34,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843208844] [2022-11-22 02:23:34,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:34,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:35,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:35,008 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:35,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843208844] [2022-11-22 02:23:35,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843208844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:35,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:35,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:23:35,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234160059] [2022-11-22 02:23:35,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:35,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:23:35,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:35,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:23:35,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:23:35,020 INFO L87 Difference]: Start difference. First operand 461 states and 1117 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) [2022-11-22 02:23:35,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:35,308 INFO L93 Difference]: Finished difference Result 616 states and 1460 transitions. [2022-11-22 02:23:35,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:23:35,309 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 [2022-11-22 02:23:35,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:35,313 INFO L225 Difference]: With dead ends: 616 [2022-11-22 02:23:35,313 INFO L226 Difference]: Without dead ends: 531 [2022-11-22 02:23:35,313 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 [2022-11-22 02:23:35,316 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 27 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:35,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 10 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:23:35,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-11-22 02:23:35,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 499. [2022-11-22 02:23:35,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 493 states have (on average 2.4868154158215012) internal successors, (1226), 498 states have internal predecessors, (1226), 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) [2022-11-22 02:23:35,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 1226 transitions. [2022-11-22 02:23:35,367 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 1226 transitions. Word has length 6 [2022-11-22 02:23:35,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:35,367 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 1226 transitions. [2022-11-22 02:23:35,368 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) [2022-11-22 02:23:35,368 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 1226 transitions. [2022-11-22 02:23:35,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 02:23:35,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:35,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:35,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:23:35,371 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-22 02:23:35,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:35,372 INFO L85 PathProgramCache]: Analyzing trace with hash -372334152, now seen corresponding path program 1 times [2022-11-22 02:23:35,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:35,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488675390] [2022-11-22 02:23:35,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:35,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:35,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:35,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:35,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488675390] [2022-11-22 02:23:35,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488675390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:35,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:35,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:23:35,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556317885] [2022-11-22 02:23:35,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:35,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:23:35,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:35,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:23:35,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:23:35,488 INFO L87 Difference]: Start difference. First operand 499 states and 1226 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) [2022-11-22 02:23:35,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:35,575 INFO L93 Difference]: Finished difference Result 179 states and 378 transitions. [2022-11-22 02:23:35,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:23:35,577 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 [2022-11-22 02:23:35,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:35,578 INFO L225 Difference]: With dead ends: 179 [2022-11-22 02:23:35,578 INFO L226 Difference]: Without dead ends: 179 [2022-11-22 02:23:35,578 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 [2022-11-22 02:23:35,579 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 23 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:35,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 8 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:23:35,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-11-22 02:23:35,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2022-11-22 02:23:35,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 175 states have (on average 2.16) internal successors, (378), 178 states have internal predecessors, (378), 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) [2022-11-22 02:23:35,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 378 transitions. [2022-11-22 02:23:35,595 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 378 transitions. Word has length 10 [2022-11-22 02:23:35,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:35,596 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 378 transitions. [2022-11-22 02:23:35,596 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) [2022-11-22 02:23:35,596 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 378 transitions. [2022-11-22 02:23:35,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-22 02:23:35,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:35,601 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:35,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:23:35,601 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-22 02:23:35,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:35,602 INFO L85 PathProgramCache]: Analyzing trace with hash -2117393365, now seen corresponding path program 1 times [2022-11-22 02:23:35,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:35,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80762772] [2022-11-22 02:23:35,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:35,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:35,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:35,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:35,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80762772] [2022-11-22 02:23:35,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80762772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:35,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:35,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:23:35,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342876297] [2022-11-22 02:23:35,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:35,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:23:35,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:35,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:23:35,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:23:35,899 INFO L87 Difference]: Start difference. First operand 179 states and 378 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 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) [2022-11-22 02:23:35,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:35,994 INFO L93 Difference]: Finished difference Result 202 states and 415 transitions. [2022-11-22 02:23:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:23:35,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 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 [2022-11-22 02:23:35,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:35,996 INFO L225 Difference]: With dead ends: 202 [2022-11-22 02:23:35,996 INFO L226 Difference]: Without dead ends: 202 [2022-11-22 02:23:35,997 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 [2022-11-22 02:23:35,998 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:35,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:23:35,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-11-22 02:23:36,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 185. [2022-11-22 02:23:36,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 181 states have (on average 2.143646408839779) internal successors, (388), 184 states have internal predecessors, (388), 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) [2022-11-22 02:23:36,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 388 transitions. [2022-11-22 02:23:36,005 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 388 transitions. Word has length 16 [2022-11-22 02:23:36,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:36,006 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 388 transitions. [2022-11-22 02:23:36,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 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) [2022-11-22 02:23:36,006 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 388 transitions. [2022-11-22 02:23:36,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-22 02:23:36,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:36,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:36,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:23:36,007 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-22 02:23:36,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:36,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1214684452, now seen corresponding path program 1 times [2022-11-22 02:23:36,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:36,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373316555] [2022-11-22 02:23:36,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:36,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:36,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:36,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:36,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373316555] [2022-11-22 02:23:36,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373316555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:36,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:36,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:23:36,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669674112] [2022-11-22 02:23:36,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:36,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:23:36,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:36,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:23:36,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:23:36,256 INFO L87 Difference]: Start difference. First operand 185 states and 388 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-22 02:23:36,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:36,351 INFO L93 Difference]: Finished difference Result 204 states and 418 transitions. [2022-11-22 02:23:36,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:23:36,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2022-11-22 02:23:36,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:36,353 INFO L225 Difference]: With dead ends: 204 [2022-11-22 02:23:36,353 INFO L226 Difference]: Without dead ends: 204 [2022-11-22 02:23:36,354 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 [2022-11-22 02:23:36,355 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:36,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:23:36,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-11-22 02:23:36,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 191. [2022-11-22 02:23:36,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 187 states have (on average 2.1497326203208558) internal successors, (402), 190 states have internal predecessors, (402), 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) [2022-11-22 02:23:36,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 402 transitions. [2022-11-22 02:23:36,363 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 402 transitions. Word has length 17 [2022-11-22 02:23:36,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:36,365 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 402 transitions. [2022-11-22 02:23:36,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-22 02:23:36,365 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 402 transitions. [2022-11-22 02:23:36,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-22 02:23:36,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:36,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:36,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:23:36,367 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-22 02:23:36,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:36,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1720777110, now seen corresponding path program 1 times [2022-11-22 02:23:36,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:36,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283188203] [2022-11-22 02:23:36,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:36,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:37,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:37,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:37,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283188203] [2022-11-22 02:23:37,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283188203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:37,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:37,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:23:37,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124509997] [2022-11-22 02:23:37,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:37,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:23:37,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:37,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:23:37,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:23:37,448 INFO L87 Difference]: Start difference. First operand 191 states and 402 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-11-22 02:23:37,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:37,649 INFO L93 Difference]: Finished difference Result 215 states and 442 transitions. [2022-11-22 02:23:37,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:23:37,650 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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 18 [2022-11-22 02:23:37,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:37,651 INFO L225 Difference]: With dead ends: 215 [2022-11-22 02:23:37,651 INFO L226 Difference]: Without dead ends: 215 [2022-11-22 02:23:37,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:23:37,652 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 73 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:37,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 11 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:23:37,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-11-22 02:23:37,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 203. [2022-11-22 02:23:37,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 199 states have (on average 2.120603015075377) internal successors, (422), 202 states have internal predecessors, (422), 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) [2022-11-22 02:23:37,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 422 transitions. [2022-11-22 02:23:37,660 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 422 transitions. Word has length 18 [2022-11-22 02:23:37,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:37,660 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 422 transitions. [2022-11-22 02:23:37,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-11-22 02:23:37,661 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 422 transitions. [2022-11-22 02:23:37,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-22 02:23:37,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:37,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:37,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:23:37,662 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-22 02:23:37,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:37,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1512358136, now seen corresponding path program 2 times [2022-11-22 02:23:37,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:37,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671094555] [2022-11-22 02:23:37,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:37,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:23:37,722 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:23:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:23:37,782 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:23:37,783 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:23:37,784 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-11-22 02:23:37,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-11-22 02:23:37,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-11-22 02:23:37,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-11-22 02:23:37,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-11-22 02:23:37,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-11-22 02:23:37,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-11-22 02:23:37,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-11-22 02:23:37,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:23:37,790 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-11-22 02:23:37,796 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 02:23:37,796 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:23:37,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:23:37 BasicIcfg [2022-11-22 02:23:37,850 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:23:37,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:23:37,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:23:37,851 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:23:37,852 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:22:35" (3/4) ... [2022-11-22 02:23:37,854 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-22 02:23:37,936 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ad3a5a-aab2-49ae-af6e-8dd7aa260c0c/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:23:37,936 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:23:37,936 INFO L158 Benchmark]: Toolchain (without parser) took 64519.24ms. Allocated memory was 172.0MB in the beginning and 241.2MB in the end (delta: 69.2MB). Free memory was 124.8MB in the beginning and 100.4MB in the end (delta: 24.4MB). Peak memory consumption was 94.8MB. Max. memory is 16.1GB. [2022-11-22 02:23:37,937 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 172.0MB. Free memory is still 141.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:23:37,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1071.96ms. Allocated memory is still 172.0MB. Free memory was 124.2MB in the beginning and 70.3MB in the end (delta: 53.9MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2022-11-22 02:23:37,937 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.03ms. Allocated memory is still 172.0MB. Free memory was 70.3MB in the beginning and 66.7MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 02:23:37,938 INFO L158 Benchmark]: Boogie Preprocessor took 96.20ms. Allocated memory is still 172.0MB. Free memory was 66.7MB in the beginning and 139.3MB in the end (delta: -72.6MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-11-22 02:23:37,938 INFO L158 Benchmark]: RCFGBuilder took 776.99ms. Allocated memory was 172.0MB in the beginning and 241.2MB in the end (delta: 69.2MB). Free memory was 139.2MB in the beginning and 183.7MB in the end (delta: -44.5MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2022-11-22 02:23:37,939 INFO L158 Benchmark]: TraceAbstraction took 62414.53ms. Allocated memory is still 241.2MB. Free memory was 182.6MB in the beginning and 107.7MB in the end (delta: 74.9MB). Peak memory consumption was 74.9MB. Max. memory is 16.1GB. [2022-11-22 02:23:37,939 INFO L158 Benchmark]: Witness Printer took 85.09ms. Allocated memory is still 241.2MB. Free memory was 107.7MB in the beginning and 100.4MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-22 02:23:37,942 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 172.0MB. Free memory is still 141.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1071.96ms. Allocated memory is still 172.0MB. Free memory was 124.2MB in the beginning and 70.3MB in the end (delta: 53.9MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.03ms. Allocated memory is still 172.0MB. Free memory was 70.3MB in the beginning and 66.7MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 96.20ms. Allocated memory is still 172.0MB. Free memory was 66.7MB in the beginning and 139.3MB in the end (delta: -72.6MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * RCFGBuilder took 776.99ms. Allocated memory was 172.0MB in the beginning and 241.2MB in the end (delta: 69.2MB). Free memory was 139.2MB in the beginning and 183.7MB in the end (delta: -44.5MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. * TraceAbstraction took 62414.53ms. Allocated memory is still 241.2MB. Free memory was 182.6MB in the beginning and 107.7MB in the end (delta: 74.9MB). Peak memory consumption was 74.9MB. Max. memory is 16.1GB. * Witness Printer took 85.09ms. Allocated memory is still 241.2MB. Free memory was 107.7MB in the beginning and 100.4MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 57.8s, 175 PlacesBefore, 44 PlacesAfterwards, 175 TransitionsBefore, 41 TransitionsAfterwards, 3380 CoEnabledTransitionPairs, 8 FixpointIterations, 87 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 23 ConcurrentYvCompositions, 3 ChoiceCompositions, 181 TotalNumberOfCompositions, 8258 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4130, independent: 3789, independent conditional: 0, independent unconditional: 3789, dependent: 208, dependent conditional: 0, dependent unconditional: 208, unknown: 133, unknown conditional: 0, unknown unconditional: 133] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2451, independent: 2379, independent conditional: 0, independent unconditional: 2379, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 21, unknown conditional: 0, unknown unconditional: 21] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2451, independent: 2373, independent conditional: 0, independent unconditional: 2373, dependent: 78, dependent conditional: 0, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 78, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 21, unknown conditional: 0, unknown unconditional: 21] , SemanticIndependenceRelation.Query Time [ms]: [ total: 45130, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 621, dependent conditional: 0, dependent unconditional: 621, unknown: 44421, unknown conditional: 0, unknown unconditional: 44421] ], Cache Queries: [ total: 4130, independent: 1410, independent conditional: 0, independent unconditional: 1410, dependent: 157, dependent conditional: 0, dependent unconditional: 157, unknown: 2563, unknown conditional: 0, unknown unconditional: 2563] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 125, Positive conditional cache size: 0, Positive unconditional cache size: 125, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 15, Unknown conditional cache size: 0, Unknown unconditional cache size: 15 - 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 - CounterExampleResult [Line: 1675]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; [L1745] CALL, EXPR 0 my_drv_init() [L1739] 0 return 0; [L1745] RET, EXPR 0 my_drv_init() [L1745] 0 int ret = my_drv_init(); [L1746] COND TRUE 0 ret==0 [L1747] 0 int probe_ret; [L1748] 0 struct my_data data; [L1749] CALL, EXPR 0 my_drv_probe(&data) [L1706] 0 struct device *d = &data->dev; [L1708] 0 data->shared.a = 0 [L1709] 0 data->shared.b = 0 [L1710] 0 int res = __VERIFIER_nondet_int(); [L1711] COND FALSE 0 !(\read(res)) [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={6:24}, d={6:24}, data={6:0}, data={6:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=7, res=0, t1={3:0}, t2={4:0}] [L1689] 1 struct device *dev = (struct device*)arg; [L1690] 1 struct my_data *data; [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1694] 1 data->shared.a = 1 VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={3:0}, t2={4:0}] [L1697] EXPR 1 data->shared.b [L1697] 1 int lb = data->shared.b; [L1700] 1 data->shared.b = lb + 1 VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, lb=0, t1={3:0}, t2={4:0}] [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, d={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, lb=0, pthread_create(&t2, ((void *)0), my_callback, (void *)d)=8, res=0, t1={3:0}, t2={4:0}] [L1715] 0 return 0; [L1749] RET, EXPR 0 my_drv_probe(&data) [L1749] 0 probe_ret = my_drv_probe(&data) [L1750] COND TRUE 0 probe_ret==0 [L1751] CALL 0 my_drv_disconnect(&data) [L1721] 0 void *status; [L1722] 0 \read(t1) VAL [\read(t1)=7, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, lb=0, status={5:0}, t1={3:0}, t2={4:0}] [L1703] 1 return 0; [L1689] 2 struct device *dev = (struct device*)arg; [L1690] 2 struct my_data *data; [L1691] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1691] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1722] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\read(t1)=7, \result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, lb=0, pthread_join(t1, &status)={0:0}, pthread_mutex_lock (&data->lock)=0, status={5:0}, t1={3:0}, t2={4:0}] [L1724] 0 data->shared.a = 3 VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, lb=0, pthread_mutex_lock (&data->lock)=0, status={5:0}, t1={3:0}, t2={4:0}] [L1727] 0 data->shared.b = 3 VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, lb=0, pthread_mutex_lock (&data->lock)=0, status={5:0}, t1={3:0}, t2={4:0}] [L1694] 2 data->shared.a = 1 VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, lb=0, t1={3:0}, t2={4:0}] [L1730] EXPR 0 data->shared.a [L1730] CALL 0 ldv_assert(data->shared.a==3) [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, expression=0, lb=0, t1={3:0}, t2={4:0}] - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 185 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 62.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 57.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 147 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 147 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 482 IncrementalHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 24 mSDtfsCounter, 482 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=499occurred in iteration=2, InterpolantAutomatonStates: 23, 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, 170 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 386 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 RESULT: Ultimate proved your program to be incorrect! [2022-11-22 02:23:38,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ad3a5a-aab2-49ae-af6e-8dd7aa260c0c/bin/utaipan-g80aRyZoba/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE