./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_00c30eb1-4599-4ea1-8736-ef70785a7bb9/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00c30eb1-4599-4ea1-8736-ef70785a7bb9/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00c30eb1-4599-4ea1-8736-ef70785a7bb9/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00c30eb1-4599-4ea1-8736-ef70785a7bb9/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00c30eb1-4599-4ea1-8736-ef70785a7bb9/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00c30eb1-4599-4ea1-8736-ef70785a7bb9/bin/utaipan-Xvt2sAort0 --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 a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 --- 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-e04fb08 [2022-11-16 19:31:19,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:31:19,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:31:19,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:31:19,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:31:19,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:31:19,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:31:19,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:31:19,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:31:19,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:31:19,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:31:19,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:31:19,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:31:19,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:31:19,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:31:19,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:31:19,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:31:19,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:31:19,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:31:19,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:31:19,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:31:19,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:31:19,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:31:19,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:31:19,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:31:19,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:31:19,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:31:19,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:31:19,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:31:19,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:31:19,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:31:19,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:31:19,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:31:19,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:31:19,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:31:19,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:31:19,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:31:19,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:31:19,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:31:19,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:31:19,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:31:19,979 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00c30eb1-4599-4ea1-8736-ef70785a7bb9/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 19:31:20,024 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:31:20,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:31:20,026 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:31:20,027 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:31:20,027 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:31:20,028 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:31:20,028 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:31:20,028 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:31:20,028 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:31:20,028 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:31:20,029 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:31:20,030 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:31:20,030 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:31:20,030 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:31:20,030 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:31:20,030 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:31:20,031 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:31:20,031 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:31:20,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:31:20,032 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 19:31:20,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:31:20,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 19:31:20,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:31:20,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:31:20,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:31:20,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:31:20,034 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 19:31:20,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:31:20,035 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:31:20,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:31:20,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:31:20,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:31:20,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:31:20,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:31:20,037 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:31:20,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:31:20,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:31:20,037 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:31:20,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:31:20,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:31:20,038 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:31:20,038 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_00c30eb1-4599-4ea1-8736-ef70785a7bb9/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00c30eb1-4599-4ea1-8736-ef70785a7bb9/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 [2022-11-16 19:31:20,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:31:20,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:31:20,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:31:20,409 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:31:20,409 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:31:20,411 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00c30eb1-4599-4ea1-8736-ef70785a7bb9/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-11-16 19:31:20,488 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00c30eb1-4599-4ea1-8736-ef70785a7bb9/bin/utaipan-Xvt2sAort0/data/b3a22704d/3b9c2763613a48e99d463150e2659a4d/FLAG604b150b2 [2022-11-16 19:31:21,230 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:31:21,231 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00c30eb1-4599-4ea1-8736-ef70785a7bb9/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-11-16 19:31:21,248 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00c30eb1-4599-4ea1-8736-ef70785a7bb9/bin/utaipan-Xvt2sAort0/data/b3a22704d/3b9c2763613a48e99d463150e2659a4d/FLAG604b150b2 [2022-11-16 19:31:21,378 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00c30eb1-4599-4ea1-8736-ef70785a7bb9/bin/utaipan-Xvt2sAort0/data/b3a22704d/3b9c2763613a48e99d463150e2659a4d [2022-11-16 19:31:21,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:31:21,382 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:31:21,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:31:21,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:31:21,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:31:21,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:31:21" (1/1) ... [2022-11-16 19:31:21,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7985b5aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:21, skipping insertion in model container [2022-11-16 19:31:21,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:31:21" (1/1) ... [2022-11-16 19:31:21,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:31:21,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:31:21,736 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 19:31:22,496 WARN L229 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_00c30eb1-4599-4ea1-8736-ef70785a7bb9/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-11-16 19:31:22,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:31:22,573 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:31:22,588 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 19:31:22,641 WARN L229 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_00c30eb1-4599-4ea1-8736-ef70785a7bb9/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-11-16 19:31:22,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:31:22,752 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:31:22,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22 WrapperNode [2022-11-16 19:31:22,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:31:22,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:31:22,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:31:22,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:31:22,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:22,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:22,818 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-11-16 19:31:22,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:31:22,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:31:22,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:31:22,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:31:22,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:22,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:22,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:22,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:22,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:22,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:22,857 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:22,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:22,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:31:22,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:31:22,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:31:22,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:31:22,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:22,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:31:22,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00c30eb1-4599-4ea1-8736-ef70785a7bb9/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:31:22,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00c30eb1-4599-4ea1-8736-ef70785a7bb9/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:31:22,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00c30eb1-4599-4ea1-8736-ef70785a7bb9/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:31:22,951 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 19:31:22,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 19:31:22,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 19:31:22,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 19:31:22,952 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 19:31:22,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 19:31:22,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 19:31:22,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:31:22,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:31:22,953 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-16 19:31:22,953 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-16 19:31:22,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 19:31:22,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 19:31:22,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 19:31:22,955 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 19:31:23,356 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:31:23,358 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:31:23,692 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:31:23,828 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:31:23,828 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 19:31:23,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:31:23 BoogieIcfgContainer [2022-11-16 19:31:23,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:31:23,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:31:23,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:31:23,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:31:23,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:31:21" (1/3) ... [2022-11-16 19:31:23,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbd0270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:31:23, skipping insertion in model container [2022-11-16 19:31:23,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (2/3) ... [2022-11-16 19:31:23,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbd0270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:31:23, skipping insertion in model container [2022-11-16 19:31:23,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:31:23" (3/3) ... [2022-11-16 19:31:23,842 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2022-11-16 19:31:23,852 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 19:31:23,864 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:31:23,864 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-16 19:31:23,864 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 19:31:23,955 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 19:31:24,003 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 19:31:24,027 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 175 transitions, 366 flow [2022-11-16 19:31:24,035 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 175 transitions, 366 flow [2022-11-16 19:31:24,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 175 transitions, 366 flow [2022-11-16 19:31:24,141 INFO L130 PetriNetUnfolder]: 8/220 cut-off events. [2022-11-16 19:31:24,142 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 19:31:24,149 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 5. Compared 365 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. [2022-11-16 19:31:24,155 INFO L119 LiptonReduction]: Number of co-enabled transitions 3536 [2022-11-16 19:32:23,304 INFO L134 LiptonReduction]: Checked pairs total: 8514 [2022-11-16 19:32:23,304 INFO L136 LiptonReduction]: Total number of compositions: 183 [2022-11-16 19:32:23,313 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 40 transitions, 96 flow [2022-11-16 19:32:23,374 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 583 states, 573 states have (on average 2.635253054101222) internal successors, (1510), 582 states have internal predecessors, (1510), 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) [2022-11-16 19:32:23,392 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:32:23,398 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;@6dc1cdab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:32:23,399 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-16 19:32:23,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 583 states, 573 states have (on average 2.635253054101222) internal successors, (1510), 582 states have internal predecessors, (1510), 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) [2022-11-16 19:32:23,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 19:32:23,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:32:23,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-16 19:32:23,409 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-16 19:32:23,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:32:23,415 INFO L85 PathProgramCache]: Analyzing trace with hash 20506569, now seen corresponding path program 1 times [2022-11-16 19:32:23,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:32:23,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124072154] [2022-11-16 19:32:23,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:32:23,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:32:23,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:32:24,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:32:24,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:32:24,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124072154] [2022-11-16 19:32:24,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124072154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:32:24,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:32:24,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:32:24,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468010670] [2022-11-16 19:32:24,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:32:24,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:32:24,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:32:24,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:32:24,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:32:24,162 INFO L87 Difference]: Start difference. First operand has 583 states, 573 states have (on average 2.635253054101222) internal successors, (1510), 582 states have internal predecessors, (1510), 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) [2022-11-16 19:32:24,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:32:24,363 INFO L93 Difference]: Finished difference Result 738 states and 1880 transitions. [2022-11-16 19:32:24,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:32:24,366 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 [2022-11-16 19:32:24,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:32:24,383 INFO L225 Difference]: With dead ends: 738 [2022-11-16 19:32:24,383 INFO L226 Difference]: Without dead ends: 701 [2022-11-16 19:32:24,384 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 [2022-11-16 19:32:24,387 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 19:32:24,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 19:32:24,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2022-11-16 19:32:24,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 605. [2022-11-16 19:32:24,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 598 states have (on average 2.560200668896321) internal successors, (1531), 604 states have internal predecessors, (1531), 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) [2022-11-16 19:32:24,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 1531 transitions. [2022-11-16 19:32:24,465 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 1531 transitions. Word has length 4 [2022-11-16 19:32:24,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:32:24,465 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 1531 transitions. [2022-11-16 19:32:24,465 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) [2022-11-16 19:32:24,466 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 1531 transitions. [2022-11-16 19:32:24,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 19:32:24,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:32:24,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 19:32:24,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 19:32:24,467 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-16 19:32:24,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:32:24,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1768035938, now seen corresponding path program 1 times [2022-11-16 19:32:24,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:32:24,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933689154] [2022-11-16 19:32:24,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:32:24,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:32:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:32:24,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:32:24,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:32:24,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933689154] [2022-11-16 19:32:24,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933689154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:32:24,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:32:24,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:32:24,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942062650] [2022-11-16 19:32:24,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:32:24,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:32:24,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:32:24,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:32:24,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:32:24,817 INFO L87 Difference]: Start difference. First operand 605 states and 1531 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) [2022-11-16 19:32:25,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:32:25,077 INFO L93 Difference]: Finished difference Result 760 states and 1874 transitions. [2022-11-16 19:32:25,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 19:32:25,078 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 [2022-11-16 19:32:25,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:32:25,083 INFO L225 Difference]: With dead ends: 760 [2022-11-16 19:32:25,083 INFO L226 Difference]: Without dead ends: 675 [2022-11-16 19:32:25,083 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 [2022-11-16 19:32:25,085 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 24 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 19:32:25,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 11 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 19:32:25,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2022-11-16 19:32:25,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 643. [2022-11-16 19:32:25,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 637 states have (on average 2.574568288854003) internal successors, (1640), 642 states have internal predecessors, (1640), 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) [2022-11-16 19:32:25,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 1640 transitions. [2022-11-16 19:32:25,145 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 1640 transitions. Word has length 6 [2022-11-16 19:32:25,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:32:25,146 INFO L495 AbstractCegarLoop]: Abstraction has 643 states and 1640 transitions. [2022-11-16 19:32:25,146 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) [2022-11-16 19:32:25,146 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 1640 transitions. [2022-11-16 19:32:25,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 19:32:25,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:32:25,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:32:25,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 19:32:25,149 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-16 19:32:25,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:32:25,150 INFO L85 PathProgramCache]: Analyzing trace with hash 735511636, now seen corresponding path program 1 times [2022-11-16 19:32:25,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:32:25,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823785988] [2022-11-16 19:32:25,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:32:25,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:32:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:32:25,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:32:25,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:32:25,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823785988] [2022-11-16 19:32:25,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823785988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:32:25,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:32:25,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:32:25,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50786879] [2022-11-16 19:32:25,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:32:25,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:32:25,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:32:25,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:32:25,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:32:25,430 INFO L87 Difference]: Start difference. First operand 643 states and 1640 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-16 19:32:25,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:32:25,563 INFO L93 Difference]: Finished difference Result 837 states and 2145 transitions. [2022-11-16 19:32:25,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:32:25,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-11-16 19:32:25,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:32:25,569 INFO L225 Difference]: With dead ends: 837 [2022-11-16 19:32:25,570 INFO L226 Difference]: Without dead ends: 837 [2022-11-16 19:32:25,571 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 [2022-11-16 19:32:25,573 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:32:25,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:32:25,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2022-11-16 19:32:25,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 703. [2022-11-16 19:32:25,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 697 states have (on average 2.576757532281205) internal successors, (1796), 702 states have internal predecessors, (1796), 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) [2022-11-16 19:32:25,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1796 transitions. [2022-11-16 19:32:25,608 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1796 transitions. Word has length 7 [2022-11-16 19:32:25,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:32:25,609 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 1796 transitions. [2022-11-16 19:32:25,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-16 19:32:25,609 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1796 transitions. [2022-11-16 19:32:25,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 19:32:25,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:32:25,610 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:32:25,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 19:32:25,610 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-16 19:32:25,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:32:25,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1326024603, now seen corresponding path program 1 times [2022-11-16 19:32:25,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:32:25,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651400933] [2022-11-16 19:32:25,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:32:25,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:32:25,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:32:25,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:32:25,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:32:25,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651400933] [2022-11-16 19:32:25,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651400933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:32:25,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:32:25,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:32:25,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716480792] [2022-11-16 19:32:25,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:32:25,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:32:25,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:32:25,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:32:25,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:32:25,763 INFO L87 Difference]: Start difference. First operand 703 states and 1796 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:32:25,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:32:25,883 INFO L93 Difference]: Finished difference Result 865 states and 2217 transitions. [2022-11-16 19:32:25,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:32:25,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-16 19:32:25,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:32:25,888 INFO L225 Difference]: With dead ends: 865 [2022-11-16 19:32:25,889 INFO L226 Difference]: Without dead ends: 865 [2022-11-16 19:32:25,889 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 [2022-11-16 19:32:25,891 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:32:25,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 5 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:32:25,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2022-11-16 19:32:25,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 763. [2022-11-16 19:32:25,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 763 states, 757 states have (on average 2.620871862615588) internal successors, (1984), 762 states have internal predecessors, (1984), 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) [2022-11-16 19:32:25,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 1984 transitions. [2022-11-16 19:32:25,955 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 1984 transitions. Word has length 8 [2022-11-16 19:32:25,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:32:25,956 INFO L495 AbstractCegarLoop]: Abstraction has 763 states and 1984 transitions. [2022-11-16 19:32:25,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:32:25,957 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1984 transitions. [2022-11-16 19:32:25,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 19:32:25,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:32:25,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:32:25,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 19:32:25,960 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-16 19:32:25,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:32:25,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1842684835, now seen corresponding path program 1 times [2022-11-16 19:32:25,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:32:25,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670822742] [2022-11-16 19:32:25,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:32:25,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:32:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 19:32:26,010 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 19:32:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 19:32:26,073 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-16 19:32:26,074 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 19:32:26,075 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-11-16 19:32:26,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-11-16 19:32:26,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-11-16 19:32:26,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-11-16 19:32:26,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-11-16 19:32:26,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-11-16 19:32:26,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-11-16 19:32:26,079 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-11-16 19:32:26,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 19:32:26,081 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-16 19:32:26,086 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 19:32:26,087 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 19:32:26,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:32:26 BasicIcfg [2022-11-16 19:32:26,141 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 19:32:26,141 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 19:32:26,141 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 19:32:26,141 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 19:32:26,142 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:31:23" (3/4) ... [2022-11-16 19:32:26,144 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-16 19:32:26,202 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00c30eb1-4599-4ea1-8736-ef70785a7bb9/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 19:32:26,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 19:32:26,203 INFO L158 Benchmark]: Toolchain (without parser) took 64821.77ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 106.8MB in the beginning and 123.0MB in the end (delta: -16.2MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2022-11-16 19:32:26,204 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 88.1MB. Free memory was 58.2MB in the beginning and 58.2MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:32:26,204 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1365.87ms. Allocated memory is still 144.7MB. Free memory was 106.6MB in the beginning and 79.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-16 19:32:26,204 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.60ms. Allocated memory is still 144.7MB. Free memory was 79.3MB in the beginning and 75.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:32:26,205 INFO L158 Benchmark]: Boogie Preprocessor took 45.56ms. Allocated memory is still 144.7MB. Free memory was 75.8MB in the beginning and 73.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 19:32:26,205 INFO L158 Benchmark]: RCFGBuilder took 965.11ms. Allocated memory is still 144.7MB. Free memory was 73.0MB in the beginning and 116.6MB in the end (delta: -43.6MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2022-11-16 19:32:26,205 INFO L158 Benchmark]: TraceAbstraction took 62307.48ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 115.7MB in the beginning and 127.2MB in the end (delta: -11.5MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. [2022-11-16 19:32:26,206 INFO L158 Benchmark]: Witness Printer took 61.56ms. Allocated memory is still 188.7MB. Free memory was 126.1MB in the beginning and 123.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 19:32:26,209 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 88.1MB. Free memory was 58.2MB in the beginning and 58.2MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1365.87ms. Allocated memory is still 144.7MB. Free memory was 106.6MB in the beginning and 79.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.60ms. Allocated memory is still 144.7MB. Free memory was 79.3MB in the beginning and 75.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.56ms. Allocated memory is still 144.7MB. Free memory was 75.8MB in the beginning and 73.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 965.11ms. Allocated memory is still 144.7MB. Free memory was 73.0MB in the beginning and 116.6MB in the end (delta: -43.6MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. * TraceAbstraction took 62307.48ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 115.7MB in the beginning and 127.2MB in the end (delta: -11.5MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. * Witness Printer took 61.56ms. Allocated memory is still 188.7MB. Free memory was 126.1MB in the beginning and 123.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 59.3s, 175 PlacesBefore, 43 PlacesAfterwards, 175 TransitionsBefore, 40 TransitionsAfterwards, 3536 CoEnabledTransitionPairs, 7 FixpointIterations, 89 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 21 ConcurrentYvCompositions, 3 ChoiceCompositions, 183 TotalNumberOfCompositions, 8514 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3885, independent: 3600, independent conditional: 0, independent unconditional: 3600, dependent: 186, dependent conditional: 0, dependent unconditional: 186, unknown: 99, unknown conditional: 0, unknown unconditional: 99] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2542, independent: 2465, independent conditional: 0, independent unconditional: 2465, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 20, unknown conditional: 0, unknown unconditional: 20] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2542, independent: 2457, independent conditional: 0, independent unconditional: 2457, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 85, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 20, unknown conditional: 0, unknown unconditional: 20] , SemanticIndependenceRelation.Query Time [ms]: [ total: 42975, independent: 86, independent conditional: 0, independent unconditional: 86, dependent: 577, dependent conditional: 0, dependent unconditional: 577, unknown: 42312, unknown conditional: 0, unknown unconditional: 42312] ], Cache Queries: [ total: 3885, independent: 1135, independent conditional: 0, independent unconditional: 1135, dependent: 129, dependent conditional: 0, dependent unconditional: 129, unknown: 2621, unknown conditional: 0, unknown unconditional: 2621] , Statistics on independence cache: Total cache size (in pairs): 165, Positive cache size: 145, Positive conditional cache size: 0, Positive unconditional cache size: 145, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 14, Unknown conditional cache size: 0, Unknown unconditional cache size: 14 - 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 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={5:24}, d={5:24}, data={5:0}, data={5:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=-2, res=0, t1={3:0}, t2={4:0}] [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, pthread_create(&t2, ((void *)0), my_callback, (void *)d)=-1, res=0, t1={3:0}, t2={4:0}] [L1716] 0 data->shared.a = 3 VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, res=0, t1={3:0}, t2={4:0}] [L1719] 0 data->shared.b = 3 VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, res=0, t1={3:0}, t2={4:0}] [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) );}) [L1694] 2 data->shared.a = 1 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1={3:0}, t2={4:0}] [L1722] EXPR 0 data->shared.a [L1722] CALL 0 ldv_assert(data->shared.a==3) [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\old(expression)=0, __mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, expression=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: 62.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 59.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 54 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 375 IncrementalHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 19 mSDtfsCounter, 375 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=763occurred in iteration=4, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 364 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 151 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2022-11-16 19:32:26,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00c30eb1-4599-4ea1-8736-ef70785a7bb9/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE