./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 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4577e13e-a2fd-48f9-9bef-9d6c8f3e8844/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4577e13e-a2fd-48f9-9bef-9d6c8f3e8844/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4577e13e-a2fd-48f9-9bef-9d6c8f3e8844/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4577e13e-a2fd-48f9-9bef-9d6c8f3e8844/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4577e13e-a2fd-48f9-9bef-9d6c8f3e8844/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4577e13e-a2fd-48f9-9bef-9d6c8f3e8844/bin/uautomizer-uyxdKDjOR8 --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 Automizer --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-2329fc7 [2022-12-13 14:34:44,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:34:44,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:34:44,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:34:44,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:34:44,961 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:34:44,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:34:44,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:34:44,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:34:44,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:34:44,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:34:44,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:34:44,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:34:44,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:34:44,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:34:44,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:34:44,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:34:44,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:34:44,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:34:44,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:34:44,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:34:44,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:34:44,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:34:44,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:34:44,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:34:44,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:34:44,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:34:44,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:34:44,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:34:44,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:34:44,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:34:44,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:34:44,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:34:44,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:34:44,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:34:44,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:34:44,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:34:44,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:34:44,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:34:44,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:34:44,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:34:44,984 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4577e13e-a2fd-48f9-9bef-9d6c8f3e8844/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 14:34:44,999 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:34:44,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:34:45,000 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:34:45,000 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:34:45,000 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:34:45,000 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:34:45,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:34:45,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:34:45,001 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:34:45,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:34:45,001 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:34:45,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:34:45,002 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:34:45,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:34:45,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:34:45,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:34:45,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:34:45,002 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:34:45,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:34:45,002 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:34:45,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:34:45,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:34:45,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:34:45,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:34:45,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:34:45,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:34:45,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:34:45,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:34:45,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:34:45,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:34:45,004 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:34:45,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:34:45,004 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:34:45,004 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:34:45,004 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:34:45,004 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_4577e13e-a2fd-48f9-9bef-9d6c8f3e8844/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4577e13e-a2fd-48f9-9bef-9d6c8f3e8844/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 [2022-12-13 14:34:45,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:34:45,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:34:45,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:34:45,192 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:34:45,192 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:34:45,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4577e13e-a2fd-48f9-9bef-9d6c8f3e8844/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-12-13 14:34:47,794 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:34:48,014 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:34:48,014 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4577e13e-a2fd-48f9-9bef-9d6c8f3e8844/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-12-13 14:34:48,027 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4577e13e-a2fd-48f9-9bef-9d6c8f3e8844/bin/uautomizer-uyxdKDjOR8/data/d226d5a64/441dd1a7cb03443283f1a20166cd64f6/FLAGe77a89ef1 [2022-12-13 14:34:48,365 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4577e13e-a2fd-48f9-9bef-9d6c8f3e8844/bin/uautomizer-uyxdKDjOR8/data/d226d5a64/441dd1a7cb03443283f1a20166cd64f6 [2022-12-13 14:34:48,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:34:48,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:34:48,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:34:48,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:34:48,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:34:48,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:34:48" (1/1) ... [2022-12-13 14:34:48,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c4fb470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:34:48, skipping insertion in model container [2022-12-13 14:34:48,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:34:48" (1/1) ... [2022-12-13 14:34:48,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:34:48,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:34:48,519 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 14:34:48,870 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_4577e13e-a2fd-48f9-9bef-9d6c8f3e8844/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-12-13 14:34:48,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:34:48,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:34:48,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:34:48,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:34:48,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:34:48,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:34:48,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:34:48,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:34:48,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:34:48,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:34:48,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:34:48,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:34:48,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:34:48,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:34:48,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:34:48,910 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:34:48,919 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 14:34:48,943 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_4577e13e-a2fd-48f9-9bef-9d6c8f3e8844/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-12-13 14:34:48,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:34:48,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:34:48,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:34:48,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:34:48,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:34:48,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:34:48,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:34:48,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:34:48,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:34:48,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:34:48,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:34:48,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:34:48,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:34:48,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:34:48,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:34:49,060 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:34:49,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:34:49 WrapperNode [2022-12-13 14:34:49,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:34:49,062 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:34:49,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:34:49,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:34:49,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:34:49" (1/1) ... [2022-12-13 14:34:49,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:34:49" (1/1) ... [2022-12-13 14:34:49,116 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-12-13 14:34:49,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:34:49,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:34:49,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:34:49,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:34:49,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:34:49" (1/1) ... [2022-12-13 14:34:49,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:34:49" (1/1) ... [2022-12-13 14:34:49,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:34:49" (1/1) ... [2022-12-13 14:34:49,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:34:49" (1/1) ... [2022-12-13 14:34:49,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:34:49" (1/1) ... [2022-12-13 14:34:49,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:34:49" (1/1) ... [2022-12-13 14:34:49,149 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:34:49" (1/1) ... [2022-12-13 14:34:49,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:34:49" (1/1) ... [2022-12-13 14:34:49,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:34:49,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:34:49,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:34:49,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:34:49,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:34:49" (1/1) ... [2022-12-13 14:34:49,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:34:49,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4577e13e-a2fd-48f9-9bef-9d6c8f3e8844/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:34:49,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4577e13e-a2fd-48f9-9bef-9d6c8f3e8844/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:34:49,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4577e13e-a2fd-48f9-9bef-9d6c8f3e8844/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:34:49,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 14:34:49,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:34:49,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 14:34:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 14:34:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 14:34:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:34:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 14:34:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:34:49,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:34:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-12-13 14:34:49,216 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-12-13 14:34:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 14:34:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 14:34:49,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:34:49,218 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 14:34:49,443 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:34:49,444 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:34:49,631 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:34:49,674 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:34:49,674 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 14:34:49,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:34:49 BoogieIcfgContainer [2022-12-13 14:34:49,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:34:49,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:34:49,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:34:49,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:34:49,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:34:48" (1/3) ... [2022-12-13 14:34:49,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70002bcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:34:49, skipping insertion in model container [2022-12-13 14:34:49,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:34:49" (2/3) ... [2022-12-13 14:34:49,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70002bcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:34:49, skipping insertion in model container [2022-12-13 14:34:49,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:34:49" (3/3) ... [2022-12-13 14:34:49,683 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2022-12-13 14:34:49,689 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 14:34:49,698 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:34:49,698 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 14:34:49,698 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 14:34:49,740 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 14:34:49,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 175 transitions, 366 flow [2022-12-13 14:34:49,841 INFO L130 PetriNetUnfolder]: 8/220 cut-off events. [2022-12-13 14:34:49,841 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 14:34:49,845 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 366 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. [2022-12-13 14:34:49,845 INFO L82 GeneralOperation]: Start removeDead. Operand has 175 places, 175 transitions, 366 flow [2022-12-13 14:34:49,850 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 161 transitions, 334 flow [2022-12-13 14:34:49,853 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 14:34:49,862 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 163 places, 161 transitions, 334 flow [2022-12-13 14:34:49,864 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 163 places, 161 transitions, 334 flow [2022-12-13 14:34:49,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 161 transitions, 334 flow [2022-12-13 14:34:49,900 INFO L130 PetriNetUnfolder]: 5/197 cut-off events. [2022-12-13 14:34:49,901 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 14:34:49,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 197 events. 5/197 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 308 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 104. Up to 4 conditions per place. [2022-12-13 14:34:49,904 INFO L119 LiptonReduction]: Number of co-enabled transitions 2964 [2022-12-13 14:35:01,014 INFO L134 LiptonReduction]: Checked pairs total: 7321 [2022-12-13 14:35:01,014 INFO L136 LiptonReduction]: Total number of compositions: 162 [2022-12-13 14:35:01,025 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:35:01,029 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=PETRI_NET, 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;@7c2f5000, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:35:01,029 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-13 14:35:01,032 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-13 14:35:01,032 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:35:01,032 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:35:01,033 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 14:35:01,033 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)] === [2022-12-13 14:35:01,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:35:01,037 INFO L85 PathProgramCache]: Analyzing trace with hash 19867479, now seen corresponding path program 1 times [2022-12-13 14:35:01,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:35:01,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179758409] [2022-12-13 14:35:01,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:35:01,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:35:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:35:01,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:35:01,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:35:01,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179758409] [2022-12-13 14:35:01,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179758409] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:35:01,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:35:01,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:35:01,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036708874] [2022-12-13 14:35:01,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:35:01,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:35:01,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:35:01,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:35:01,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:35:01,555 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 337 [2022-12-13 14:35:01,557 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 35 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:01,558 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:35:01,558 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 337 [2022-12-13 14:35:01,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:35:01,824 INFO L130 PetriNetUnfolder]: 822/1422 cut-off events. [2022-12-13 14:35:01,824 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-13 14:35:01,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2826 conditions, 1422 events. 822/1422 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7110 event pairs, 577 based on Foata normal form. 0/1278 useless extension candidates. Maximal degree in co-relation 2740. Up to 1128 conditions per place. [2022-12-13 14:35:01,835 INFO L137 encePairwiseOnDemand]: 328/337 looper letters, 37 selfloop transitions, 7 changer transitions 0/46 dead transitions. [2022-12-13 14:35:01,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 192 flow [2022-12-13 14:35:01,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:35:01,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:35:01,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 470 transitions. [2022-12-13 14:35:01,849 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4648862512363996 [2022-12-13 14:35:01,850 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 470 transitions. [2022-12-13 14:35:01,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 470 transitions. [2022-12-13 14:35:01,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:35:01,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 470 transitions. [2022-12-13 14:35:01,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:01,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:01,864 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:01,866 INFO L175 Difference]: Start difference. First operand has 39 places, 35 transitions, 82 flow. Second operand 3 states and 470 transitions. [2022-12-13 14:35:01,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 192 flow [2022-12-13 14:35:01,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 46 transitions, 184 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 14:35:01,872 INFO L231 Difference]: Finished difference. Result has 39 places, 39 transitions, 122 flow [2022-12-13 14:35:01,874 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=39, PETRI_TRANSITIONS=39} [2022-12-13 14:35:01,877 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 0 predicate places. [2022-12-13 14:35:01,877 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 39 transitions, 122 flow [2022-12-13 14:35:01,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:01,878 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:35:01,878 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 14:35:01,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:35:01,879 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)] === [2022-12-13 14:35:01,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:35:01,879 INFO L85 PathProgramCache]: Analyzing trace with hash 615892073, now seen corresponding path program 1 times [2022-12-13 14:35:01,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:35:01,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136057755] [2022-12-13 14:35:01,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:35:01,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:35:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:35:02,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:35:02,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:35:02,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136057755] [2022-12-13 14:35:02,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136057755] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:35:02,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:35:02,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:35:02,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000212412] [2022-12-13 14:35:02,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:35:02,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:35:02,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:35:02,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:35:02,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:35:02,131 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 337 [2022-12-13 14:35:02,132 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 39 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:02,132 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:35:02,132 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 337 [2022-12-13 14:35:02,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:35:02,409 INFO L130 PetriNetUnfolder]: 1050/1773 cut-off events. [2022-12-13 14:35:02,410 INFO L131 PetriNetUnfolder]: For 526/526 co-relation queries the response was YES. [2022-12-13 14:35:02,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4420 conditions, 1773 events. 1050/1773 cut-off events. For 526/526 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 9035 event pairs, 717 based on Foata normal form. 37/1736 useless extension candidates. Maximal degree in co-relation 1779. Up to 1461 conditions per place. [2022-12-13 14:35:02,415 INFO L137 encePairwiseOnDemand]: 330/337 looper letters, 43 selfloop transitions, 9 changer transitions 2/55 dead transitions. [2022-12-13 14:35:02,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 55 transitions, 292 flow [2022-12-13 14:35:02,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:35:02,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:35:02,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 469 transitions. [2022-12-13 14:35:02,420 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4638971315529179 [2022-12-13 14:35:02,420 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 469 transitions. [2022-12-13 14:35:02,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 469 transitions. [2022-12-13 14:35:02,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:35:02,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 469 transitions. [2022-12-13 14:35:02,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:02,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:02,429 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:02,429 INFO L175 Difference]: Start difference. First operand has 39 places, 39 transitions, 122 flow. Second operand 3 states and 469 transitions. [2022-12-13 14:35:02,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 55 transitions, 292 flow [2022-12-13 14:35:02,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 55 transitions, 268 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 14:35:02,435 INFO L231 Difference]: Finished difference. Result has 40 places, 45 transitions, 179 flow [2022-12-13 14:35:02,436 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=179, PETRI_PLACES=40, PETRI_TRANSITIONS=45} [2022-12-13 14:35:02,436 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2022-12-13 14:35:02,436 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 45 transitions, 179 flow [2022-12-13 14:35:02,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:02,437 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:35:02,437 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:35:02,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:35:02,438 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)] === [2022-12-13 14:35:02,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:35:02,438 INFO L85 PathProgramCache]: Analyzing trace with hash -734209911, now seen corresponding path program 1 times [2022-12-13 14:35:02,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:35:02,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712137165] [2022-12-13 14:35:02,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:35:02,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:35:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:35:02,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:35:02,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:35:02,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712137165] [2022-12-13 14:35:02,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712137165] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:35:02,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:35:02,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:35:02,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945263052] [2022-12-13 14:35:02,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:35:02,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:35:02,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:35:02,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:35:02,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:35:02,642 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 337 [2022-12-13 14:35:02,643 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 45 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:02,643 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:35:02,643 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 337 [2022-12-13 14:35:02,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:35:02,905 INFO L130 PetriNetUnfolder]: 1252/2129 cut-off events. [2022-12-13 14:35:02,905 INFO L131 PetriNetUnfolder]: For 1071/1071 co-relation queries the response was YES. [2022-12-13 14:35:02,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5735 conditions, 2129 events. 1252/2129 cut-off events. For 1071/1071 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 11598 event pairs, 589 based on Foata normal form. 0/1964 useless extension candidates. Maximal degree in co-relation 3266. Up to 1690 conditions per place. [2022-12-13 14:35:02,912 INFO L137 encePairwiseOnDemand]: 328/337 looper letters, 52 selfloop transitions, 8 changer transitions 0/62 dead transitions. [2022-12-13 14:35:02,913 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 62 transitions, 352 flow [2022-12-13 14:35:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:35:02,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:35:02,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 477 transitions. [2022-12-13 14:35:02,914 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47181008902077154 [2022-12-13 14:35:02,914 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 477 transitions. [2022-12-13 14:35:02,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 477 transitions. [2022-12-13 14:35:02,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:35:02,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 477 transitions. [2022-12-13 14:35:02,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:02,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:02,917 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:02,917 INFO L175 Difference]: Start difference. First operand has 40 places, 45 transitions, 179 flow. Second operand 3 states and 477 transitions. [2022-12-13 14:35:02,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 62 transitions, 352 flow [2022-12-13 14:35:02,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 62 transitions, 343 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 14:35:02,921 INFO L231 Difference]: Finished difference. Result has 43 places, 52 transitions, 250 flow [2022-12-13 14:35:02,921 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=43, PETRI_TRANSITIONS=52} [2022-12-13 14:35:02,921 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 4 predicate places. [2022-12-13 14:35:02,921 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 52 transitions, 250 flow [2022-12-13 14:35:02,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:02,922 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:35:02,922 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:35:02,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 14:35:02,922 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)] === [2022-12-13 14:35:02,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:35:02,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1285670394, now seen corresponding path program 1 times [2022-12-13 14:35:02,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:35:02,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135644122] [2022-12-13 14:35:02,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:35:02,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:35:02,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:35:03,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:35:03,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:35:03,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135644122] [2022-12-13 14:35:03,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135644122] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:35:03,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:35:03,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:35:03,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314106740] [2022-12-13 14:35:03,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:35:03,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:35:03,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:35:03,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:35:03,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:35:03,070 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 337 [2022-12-13 14:35:03,071 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 52 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:03,071 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:35:03,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 337 [2022-12-13 14:35:03,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:35:03,367 INFO L130 PetriNetUnfolder]: 1627/2697 cut-off events. [2022-12-13 14:35:03,367 INFO L131 PetriNetUnfolder]: For 3237/3237 co-relation queries the response was YES. [2022-12-13 14:35:03,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8275 conditions, 2697 events. 1627/2697 cut-off events. For 3237/3237 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 14516 event pairs, 729 based on Foata normal form. 0/2568 useless extension candidates. Maximal degree in co-relation 721. Up to 2070 conditions per place. [2022-12-13 14:35:03,377 INFO L137 encePairwiseOnDemand]: 328/337 looper letters, 58 selfloop transitions, 14 changer transitions 0/73 dead transitions. [2022-12-13 14:35:03,377 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 73 transitions, 505 flow [2022-12-13 14:35:03,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:35:03,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:35:03,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 478 transitions. [2022-12-13 14:35:03,379 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47279920870425324 [2022-12-13 14:35:03,379 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 478 transitions. [2022-12-13 14:35:03,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 478 transitions. [2022-12-13 14:35:03,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:35:03,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 478 transitions. [2022-12-13 14:35:03,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:03,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:03,382 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:03,382 INFO L175 Difference]: Start difference. First operand has 43 places, 52 transitions, 250 flow. Second operand 3 states and 478 transitions. [2022-12-13 14:35:03,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 73 transitions, 505 flow [2022-12-13 14:35:03,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 73 transitions, 447 flow, removed 16 selfloop flow, removed 2 redundant places. [2022-12-13 14:35:03,386 INFO L231 Difference]: Finished difference. Result has 45 places, 63 transitions, 358 flow [2022-12-13 14:35:03,386 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=45, PETRI_TRANSITIONS=63} [2022-12-13 14:35:03,387 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 6 predicate places. [2022-12-13 14:35:03,387 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 63 transitions, 358 flow [2022-12-13 14:35:03,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:03,387 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:35:03,387 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:35:03,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 14:35:03,388 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)] === [2022-12-13 14:35:03,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:35:03,388 INFO L85 PathProgramCache]: Analyzing trace with hash 572932953, now seen corresponding path program 1 times [2022-12-13 14:35:03,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:35:03,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981642881] [2022-12-13 14:35:03,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:35:03,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:35:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:35:03,418 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:35:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:35:03,454 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:35:03,455 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 14:35:03,455 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-12-13 14:35:03,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-12-13 14:35:03,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-12-13 14:35:03,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-12-13 14:35:03,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-12-13 14:35:03,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-12-13 14:35:03,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-12-13 14:35:03,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-12-13 14:35:03,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 14:35:03,458 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-13 14:35:03,462 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 14:35:03,462 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 14:35:03,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:35:03 BasicIcfg [2022-12-13 14:35:03,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 14:35:03,490 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:35:03,490 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:35:03,490 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:35:03,490 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:34:49" (3/4) ... [2022-12-13 14:35:03,492 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 14:35:03,531 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4577e13e-a2fd-48f9-9bef-9d6c8f3e8844/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 14:35:03,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:35:03,532 INFO L158 Benchmark]: Toolchain (without parser) took 15163.81ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 112.7MB in the beginning and 65.5MB in the end (delta: 47.2MB). Peak memory consumption was 82.8MB. Max. memory is 16.1GB. [2022-12-13 14:35:03,533 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 109.1MB. Free memory was 82.5MB in the beginning and 82.5MB in the end (delta: 78.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:35:03,533 INFO L158 Benchmark]: CACSL2BoogieTranslator took 691.91ms. Allocated memory is still 151.0MB. Free memory was 112.2MB in the beginning and 110.5MB in the end (delta: 1.7MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. [2022-12-13 14:35:03,533 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.58ms. Allocated memory is still 151.0MB. Free memory was 110.5MB in the beginning and 106.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 14:35:03,534 INFO L158 Benchmark]: Boogie Preprocessor took 39.26ms. Allocated memory is still 151.0MB. Free memory was 106.7MB in the beginning and 104.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:35:03,534 INFO L158 Benchmark]: RCFGBuilder took 519.97ms. Allocated memory is still 151.0MB. Free memory was 104.2MB in the beginning and 76.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 14:35:03,534 INFO L158 Benchmark]: TraceAbstraction took 13810.97ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 76.1MB in the beginning and 69.7MB in the end (delta: 6.4MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2022-12-13 14:35:03,535 INFO L158 Benchmark]: Witness Printer took 42.05ms. Allocated memory is still 182.5MB. Free memory was 69.7MB in the beginning and 65.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 14:35:03,537 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 109.1MB. Free memory was 82.5MB in the beginning and 82.5MB in the end (delta: 78.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 691.91ms. Allocated memory is still 151.0MB. Free memory was 112.2MB in the beginning and 110.5MB in the end (delta: 1.7MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.58ms. Allocated memory is still 151.0MB. Free memory was 110.5MB in the beginning and 106.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.26ms. Allocated memory is still 151.0MB. Free memory was 106.7MB in the beginning and 104.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 519.97ms. Allocated memory is still 151.0MB. Free memory was 104.2MB in the beginning and 76.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 13810.97ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 76.1MB in the beginning and 69.7MB in the end (delta: 6.4MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. * Witness Printer took 42.05ms. Allocated memory is still 182.5MB. Free memory was 69.7MB in the beginning and 65.5MB in the end (delta: 4.2MB). 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: 11.2s, 163 PlacesBefore, 39 PlacesAfterwards, 161 TransitionsBefore, 35 TransitionsAfterwards, 2964 CoEnabledTransitionPairs, 7 FixpointIterations, 85 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 162 TotalNumberOfCompositions, 7321 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2688, independent: 2410, independent conditional: 0, independent unconditional: 2410, dependent: 278, dependent conditional: 0, dependent unconditional: 278, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1536, independent: 1486, independent conditional: 0, independent unconditional: 1486, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2688, independent: 924, independent conditional: 0, independent unconditional: 924, dependent: 228, dependent conditional: 0, dependent unconditional: 228, unknown: 1536, unknown conditional: 0, unknown unconditional: 1536] , Statistics on independence cache: Total cache size (in pairs): 63, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 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}] [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) );}) [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, pthread_create(&t2, ((void *)0), my_callback, (void *)d)=-1, pthread_mutex_lock (&data->lock)=0, res=0, t1={3:0}, t2={4:0}] [L1716] 0 data->shared.a = 3 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, pthread_mutex_lock (&data->lock)=0, res=0, t1={3:0}, t2={4:0}] [L1694] 1 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}] [L1719] 0 data->shared.b = 3 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, res=0, 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. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 13.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 286 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 453 IncrementalHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 56 mSDtfsCounter, 453 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=358occurred in iteration=4, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 140 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! [2022-12-13 14:35:03,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4577e13e-a2fd-48f9-9bef-9d6c8f3e8844/bin/uautomizer-uyxdKDjOR8/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