./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ca8988d-6111-40f1-9063-ef9c79bfa030/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ca8988d-6111-40f1-9063-ef9c79bfa030/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ca8988d-6111-40f1-9063-ef9c79bfa030/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ca8988d-6111-40f1-9063-ef9c79bfa030/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ca8988d-6111-40f1-9063-ef9c79bfa030/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ca8988d-6111-40f1-9063-ef9c79bfa030/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b5f4c57d88bf6e97d091c1ec0f5525d1ae2da6c31cffbcaaf02c59d6e6570e5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:30:11,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:30:11,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:30:11,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:30:11,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:30:11,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:30:11,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:30:11,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:30:11,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:30:11,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:30:11,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:30:11,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:30:11,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:30:11,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:30:11,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:30:11,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:30:11,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:30:11,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:30:11,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:30:11,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:30:11,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:30:11,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:30:11,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:30:11,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:30:11,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:30:11,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:30:11,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:30:11,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:30:11,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:30:11,921 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:30:11,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:30:11,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:30:11,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:30:11,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:30:11,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:30:11,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:30:11,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:30:11,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:30:11,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:30:11,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:30:11,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:30:11,935 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ca8988d-6111-40f1-9063-ef9c79bfa030/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-21 16:30:11,976 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:30:11,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:30:11,979 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:30:11,979 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:30:11,980 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:30:11,981 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:30:11,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:30:11,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:30:11,982 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:30:11,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:30:11,983 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:30:11,984 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:30:11,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:30:11,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:30:11,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:30:11,984 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 16:30:11,985 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 16:30:11,985 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 16:30:11,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:30:11,985 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:30:11,986 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:30:11,986 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:30:11,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:30:11,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:30:11,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:30:11,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:30:11,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:30:11,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:30:11,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:30:11,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:30:11,988 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_9ca8988d-6111-40f1-9063-ef9c79bfa030/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ca8988d-6111-40f1-9063-ef9c79bfa030/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b5f4c57d88bf6e97d091c1ec0f5525d1ae2da6c31cffbcaaf02c59d6e6570e5 [2022-11-21 16:30:12,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:30:12,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:30:12,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:30:12,288 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:30:12,289 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:30:12,290 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ca8988d-6111-40f1-9063-ef9c79bfa030/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i [2022-11-21 16:30:15,519 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:30:15,908 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:30:15,909 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ca8988d-6111-40f1-9063-ef9c79bfa030/sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i [2022-11-21 16:30:15,931 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ca8988d-6111-40f1-9063-ef9c79bfa030/bin/uautomizer-vX5HgA9Q3a/data/4e4df823f/caac92dc6cc748dbac3e21ca3a02ff42/FLAG97c3a0ddf [2022-11-21 16:30:15,951 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ca8988d-6111-40f1-9063-ef9c79bfa030/bin/uautomizer-vX5HgA9Q3a/data/4e4df823f/caac92dc6cc748dbac3e21ca3a02ff42 [2022-11-21 16:30:15,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:30:15,960 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:30:15,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:30:15,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:30:15,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:30:15,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:30:15" (1/1) ... [2022-11-21 16:30:15,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@744172e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:15, skipping insertion in model container [2022-11-21 16:30:15,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:30:15" (1/1) ... [2022-11-21 16:30:15,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:30:16,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:30:16,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:30:16,589 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:30:16,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:30:16,730 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:30:16,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:16 WrapperNode [2022-11-21 16:30:16,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:30:16,733 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:30:16,733 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:30:16,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:30:16,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:16" (1/1) ... [2022-11-21 16:30:16,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:16" (1/1) ... [2022-11-21 16:30:16,809 INFO L138 Inliner]: procedures = 262, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2022-11-21 16:30:16,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:30:16,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:30:16,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:30:16,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:30:16,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:16" (1/1) ... [2022-11-21 16:30:16,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:16" (1/1) ... [2022-11-21 16:30:16,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:16" (1/1) ... [2022-11-21 16:30:16,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:16" (1/1) ... [2022-11-21 16:30:16,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:16" (1/1) ... [2022-11-21 16:30:16,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:16" (1/1) ... [2022-11-21 16:30:16,854 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:16" (1/1) ... [2022-11-21 16:30:16,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:16" (1/1) ... [2022-11-21 16:30:16,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:30:16,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:30:16,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:30:16,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:30:16,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:16" (1/1) ... [2022-11-21 16:30:16,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:30:16,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ca8988d-6111-40f1-9063-ef9c79bfa030/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:30:16,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ca8988d-6111-40f1-9063-ef9c79bfa030/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:30:16,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ca8988d-6111-40f1-9063-ef9c79bfa030/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:30:16,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:30:16,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:30:16,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:30:16,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:30:16,951 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 16:30:16,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:30:16,951 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-21 16:30:16,952 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-21 16:30:16,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:30:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:30:16,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:30:16,954 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:30:17,137 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:30:17,139 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:30:17,408 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:30:17,416 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:30:17,417 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:30:17,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:30:17 BoogieIcfgContainer [2022-11-21 16:30:17,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:30:17,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:30:17,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:30:17,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:30:17,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:30:15" (1/3) ... [2022-11-21 16:30:17,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aad3046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:30:17, skipping insertion in model container [2022-11-21 16:30:17,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:16" (2/3) ... [2022-11-21 16:30:17,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aad3046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:30:17, skipping insertion in model container [2022-11-21 16:30:17,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:30:17" (3/3) ... [2022-11-21 16:30:17,429 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_12-ptr_nr.i [2022-11-21 16:30:17,455 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:30:17,456 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-11-21 16:30:17,456 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:30:17,563 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-21 16:30:17,598 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-21 16:30:17,612 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 76 transitions, 160 flow [2022-11-21 16:30:17,615 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 76 transitions, 160 flow [2022-11-21 16:30:17,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 76 transitions, 160 flow [2022-11-21 16:30:17,665 INFO L130 PetriNetUnfolder]: 0/75 cut-off events. [2022-11-21 16:30:17,665 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 16:30:17,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 75 events. 0/75 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 82 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-21 16:30:17,670 INFO L119 LiptonReduction]: Number of co-enabled transitions 420 [2022-11-21 16:30:20,901 INFO L134 LiptonReduction]: Checked pairs total: 2099 [2022-11-21 16:30:20,901 INFO L136 LiptonReduction]: Total number of compositions: 86 [2022-11-21 16:30:20,912 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 27 transitions, 62 flow [2022-11-21 16:30:20,945 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 114 states, 77 states have (on average 2.6103896103896105) internal successors, (201), 113 states have internal predecessors, (201), 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) [2022-11-21 16:30:20,965 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:30:20,972 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@2bd3175a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:30:20,972 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-21 16:30:20,975 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 77 states have (on average 2.6103896103896105) internal successors, (201), 113 states have internal predecessors, (201), 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) [2022-11-21 16:30:20,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-21 16:30:20,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:30:20,981 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-21 16:30:20,982 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-21 16:30:20,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:20,988 INFO L85 PathProgramCache]: Analyzing trace with hash 283, now seen corresponding path program 1 times [2022-11-21 16:30:20,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:20,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925374503] [2022-11-21 16:30:20,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:21,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:21,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:21,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:30:21,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925374503] [2022-11-21 16:30:21,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925374503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:30:21,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:30:21,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-21 16:30:21,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502851743] [2022-11-21 16:30:21,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:30:21,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:30:21,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:30:21,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:30:21,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:30:21,133 INFO L87 Difference]: Start difference. First operand has 114 states, 77 states have (on average 2.6103896103896105) internal successors, (201), 113 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:21,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:30:21,183 INFO L93 Difference]: Finished difference Result 74 states and 127 transitions. [2022-11-21 16:30:21,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:30:21,185 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-21 16:30:21,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:30:21,194 INFO L225 Difference]: With dead ends: 74 [2022-11-21 16:30:21,195 INFO L226 Difference]: Without dead ends: 74 [2022-11-21 16:30:21,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:30:21,199 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:30:21,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:30:21,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-21 16:30:21,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-21 16:30:21,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 59 states have (on average 2.152542372881356) internal successors, (127), 73 states have internal predecessors, (127), 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) [2022-11-21 16:30:21,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 127 transitions. [2022-11-21 16:30:21,239 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 127 transitions. Word has length 1 [2022-11-21 16:30:21,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:30:21,240 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 127 transitions. [2022-11-21 16:30:21,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:21,241 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 127 transitions. [2022-11-21 16:30:21,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 16:30:21,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:30:21,241 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-21 16:30:21,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:30:21,242 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-21 16:30:21,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:21,243 INFO L85 PathProgramCache]: Analyzing trace with hash 278329, now seen corresponding path program 1 times [2022-11-21 16:30:21,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:21,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630013291] [2022-11-21 16:30:21,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:21,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:21,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:21,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:21,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:30:21,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630013291] [2022-11-21 16:30:21,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630013291] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:30:21,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:30:21,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 16:30:21,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871890710] [2022-11-21 16:30:21,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:30:21,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:30:21,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:30:21,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:30:21,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:30:21,615 INFO L87 Difference]: Start difference. First operand 74 states and 127 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-21 16:30:21,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:30:21,651 INFO L93 Difference]: Finished difference Result 58 states and 97 transitions. [2022-11-21 16:30:21,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:30:21,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-11-21 16:30:21,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:30:21,653 INFO L225 Difference]: With dead ends: 58 [2022-11-21 16:30:21,653 INFO L226 Difference]: Without dead ends: 58 [2022-11-21 16:30:21,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:30:21,654 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 15 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:30:21,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:30:21,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-21 16:30:21,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-21 16:30:21,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 50 states have (on average 1.94) internal successors, (97), 57 states have internal predecessors, (97), 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) [2022-11-21 16:30:21,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 97 transitions. [2022-11-21 16:30:21,664 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 97 transitions. Word has length 3 [2022-11-21 16:30:21,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:30:21,665 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 97 transitions. [2022-11-21 16:30:21,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-21 16:30:21,665 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 97 transitions. [2022-11-21 16:30:21,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 16:30:21,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:30:21,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-21 16:30:21,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:30:21,666 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-21 16:30:21,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:21,667 INFO L85 PathProgramCache]: Analyzing trace with hash 278330, now seen corresponding path program 1 times [2022-11-21 16:30:21,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:21,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741413231] [2022-11-21 16:30:21,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:21,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:21,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:21,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:30:21,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741413231] [2022-11-21 16:30:21,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741413231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:30:21,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:30:21,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 16:30:21,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75922624] [2022-11-21 16:30:21,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:30:21,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:30:21,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:30:21,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:30:21,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:30:21,778 INFO L87 Difference]: Start difference. First operand 58 states and 97 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-21 16:30:21,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:30:21,807 INFO L93 Difference]: Finished difference Result 44 states and 71 transitions. [2022-11-21 16:30:21,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:30:21,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-11-21 16:30:21,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:30:21,808 INFO L225 Difference]: With dead ends: 44 [2022-11-21 16:30:21,808 INFO L226 Difference]: Without dead ends: 44 [2022-11-21 16:30:21,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:30:21,810 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:30:21,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:30:21,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-21 16:30:21,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-21 16:30:21,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 41 states have (on average 1.7317073170731707) internal successors, (71), 43 states have internal predecessors, (71), 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) [2022-11-21 16:30:21,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 71 transitions. [2022-11-21 16:30:21,815 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 71 transitions. Word has length 3 [2022-11-21 16:30:21,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:30:21,816 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 71 transitions. [2022-11-21 16:30:21,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-21 16:30:21,816 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 71 transitions. [2022-11-21 16:30:21,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 16:30:21,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:30:21,817 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-21 16:30:21,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:30:21,817 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-21 16:30:21,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:21,818 INFO L85 PathProgramCache]: Analyzing trace with hash -297516930, now seen corresponding path program 1 times [2022-11-21 16:30:21,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:21,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395773509] [2022-11-21 16:30:21,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:21,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:21,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:21,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:21,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:30:21,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395773509] [2022-11-21 16:30:21,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395773509] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:30:21,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:30:21,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 16:30:21,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690651230] [2022-11-21 16:30:21,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:30:21,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:30:21,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:30:21,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:30:21,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:30:21,893 INFO L87 Difference]: Start difference. First operand 44 states and 71 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-11-21 16:30:21,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:30:21,922 INFO L93 Difference]: Finished difference Result 39 states and 62 transitions. [2022-11-21 16:30:21,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:30:21,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2022-11-21 16:30:21,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:30:21,924 INFO L225 Difference]: With dead ends: 39 [2022-11-21 16:30:21,925 INFO L226 Difference]: Without dead ends: 39 [2022-11-21 16:30:21,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:30:21,929 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:30:21,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:30:21,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-21 16:30:21,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-21 16:30:21,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 37 states have (on average 1.6756756756756757) internal successors, (62), 38 states have internal predecessors, (62), 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) [2022-11-21 16:30:21,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 62 transitions. [2022-11-21 16:30:21,939 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 62 transitions. Word has length 6 [2022-11-21 16:30:21,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:30:21,939 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 62 transitions. [2022-11-21 16:30:21,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-11-21 16:30:21,939 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 62 transitions. [2022-11-21 16:30:21,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 16:30:21,940 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:30:21,940 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-21 16:30:21,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:30:21,940 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-21 16:30:21,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:21,941 INFO L85 PathProgramCache]: Analyzing trace with hash -297516929, now seen corresponding path program 1 times [2022-11-21 16:30:21,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:21,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244280329] [2022-11-21 16:30:21,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:21,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:22,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:22,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:30:22,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244280329] [2022-11-21 16:30:22,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244280329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:30:22,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:30:22,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 16:30:22,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460536805] [2022-11-21 16:30:22,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:30:22,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:30:22,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:30:22,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:30:22,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:30:22,064 INFO L87 Difference]: Start difference. First operand 39 states and 62 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-11-21 16:30:22,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:30:22,090 INFO L93 Difference]: Finished difference Result 34 states and 53 transitions. [2022-11-21 16:30:22,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:30:22,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2022-11-21 16:30:22,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:30:22,093 INFO L225 Difference]: With dead ends: 34 [2022-11-21 16:30:22,093 INFO L226 Difference]: Without dead ends: 34 [2022-11-21 16:30:22,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:30:22,096 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:30:22,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:30:22,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-21 16:30:22,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-21 16:30:22,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.606060606060606) internal successors, (53), 33 states have internal predecessors, (53), 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) [2022-11-21 16:30:22,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 53 transitions. [2022-11-21 16:30:22,105 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 53 transitions. Word has length 6 [2022-11-21 16:30:22,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:30:22,105 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 53 transitions. [2022-11-21 16:30:22,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-11-21 16:30:22,105 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 53 transitions. [2022-11-21 16:30:22,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 16:30:22,106 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:30:22,106 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:30:22,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:30:22,107 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-21 16:30:22,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:22,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1603036043, now seen corresponding path program 1 times [2022-11-21 16:30:22,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:22,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808349218] [2022-11-21 16:30:22,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:22,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:22,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:22,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:30:22,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808349218] [2022-11-21 16:30:22,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808349218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:30:22,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:30:22,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:30:22,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548436522] [2022-11-21 16:30:22,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:30:22,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:30:22,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:30:22,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:30:22,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:30:22,246 INFO L87 Difference]: Start difference. First operand 34 states and 53 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-21 16:30:22,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:30:22,271 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2022-11-21 16:30:22,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:30:22,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-11-21 16:30:22,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:30:22,272 INFO L225 Difference]: With dead ends: 25 [2022-11-21 16:30:22,272 INFO L226 Difference]: Without dead ends: 25 [2022-11-21 16:30:22,272 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 [2022-11-21 16:30:22,273 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:30:22,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:30:22,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-21 16:30:22,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-21 16:30:22,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 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) [2022-11-21 16:30:22,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2022-11-21 16:30:22,276 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 13 [2022-11-21 16:30:22,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:30:22,276 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2022-11-21 16:30:22,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-21 16:30:22,277 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2022-11-21 16:30:22,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 16:30:22,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:30:22,277 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:30:22,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:30:22,278 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-21 16:30:22,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:22,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1154712143, now seen corresponding path program 2 times [2022-11-21 16:30:22,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:22,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317485500] [2022-11-21 16:30:22,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:22,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:22,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:22,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:22,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:30:22,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317485500] [2022-11-21 16:30:22,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317485500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:30:22,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:30:22,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 16:30:22,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379225662] [2022-11-21 16:30:22,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:30:22,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:30:22,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:30:22,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:30:22,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:30:22,443 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2022-11-21 16:30:22,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:30:22,463 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2022-11-21 16:30:22,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:30:22,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 13 [2022-11-21 16:30:22,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:30:22,464 INFO L225 Difference]: With dead ends: 24 [2022-11-21 16:30:22,464 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 16:30:22,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:30:22,465 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:30:22,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:30:22,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 16:30:22,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 16:30:22,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:22,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 16:30:22,467 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-11-21 16:30:22,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:30:22,467 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 16:30:22,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2022-11-21 16:30:22,468 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 16:30:22,468 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 16:30:22,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 18 remaining) [2022-11-21 16:30:22,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 18 remaining) [2022-11-21 16:30:22,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2022-11-21 16:30:22,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2022-11-21 16:30:22,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2022-11-21 16:30:22,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2022-11-21 16:30:22,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 18 remaining) [2022-11-21 16:30:22,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 18 remaining) [2022-11-21 16:30:22,473 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (9 of 18 remaining) [2022-11-21 16:30:22,473 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2022-11-21 16:30:22,473 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 18 remaining) [2022-11-21 16:30:22,473 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2022-11-21 16:30:22,473 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2022-11-21 16:30:22,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2022-11-21 16:30:22,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2022-11-21 16:30:22,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2022-11-21 16:30:22,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 18 remaining) [2022-11-21 16:30:22,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 18 remaining) [2022-11-21 16:30:22,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:30:22,479 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-11-21 16:30:22,487 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:30:22,487 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:30:22,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:30:22 BasicIcfg [2022-11-21 16:30:22,491 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:30:22,491 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:30:22,491 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:30:22,492 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:30:22,492 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:30:17" (3/4) ... [2022-11-21 16:30:22,495 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:30:22,503 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-21 16:30:22,510 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-21 16:30:22,510 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 16:30:22,511 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-21 16:30:22,550 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ca8988d-6111-40f1-9063-ef9c79bfa030/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:30:22,550 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:30:22,551 INFO L158 Benchmark]: Toolchain (without parser) took 6591.02ms. Allocated memory was 130.0MB in the beginning and 184.5MB in the end (delta: 54.5MB). Free memory was 85.6MB in the beginning and 84.5MB in the end (delta: 1.1MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. [2022-11-21 16:30:22,551 INFO L158 Benchmark]: CDTParser took 0.91ms. Allocated memory is still 130.0MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:30:22,551 INFO L158 Benchmark]: CACSL2BoogieTranslator took 769.24ms. Allocated memory is still 130.0MB. Free memory was 85.6MB in the beginning and 58.4MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-21 16:30:22,551 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.27ms. Allocated memory is still 130.0MB. Free memory was 58.4MB in the beginning and 56.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:30:22,552 INFO L158 Benchmark]: Boogie Preprocessor took 51.99ms. Allocated memory is still 130.0MB. Free memory was 56.3MB in the beginning and 54.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:30:22,552 INFO L158 Benchmark]: RCFGBuilder took 555.81ms. Allocated memory was 130.0MB in the beginning and 184.5MB in the end (delta: 54.5MB). Free memory was 54.7MB in the beginning and 153.0MB in the end (delta: -98.4MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2022-11-21 16:30:22,553 INFO L158 Benchmark]: TraceAbstraction took 5069.17ms. Allocated memory is still 184.5MB. Free memory was 153.0MB in the beginning and 86.5MB in the end (delta: 66.5MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2022-11-21 16:30:22,553 INFO L158 Benchmark]: Witness Printer took 58.85ms. Allocated memory is still 184.5MB. Free memory was 86.5MB in the beginning and 84.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:30:22,555 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91ms. Allocated memory is still 130.0MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 769.24ms. Allocated memory is still 130.0MB. Free memory was 85.6MB in the beginning and 58.4MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.27ms. Allocated memory is still 130.0MB. Free memory was 58.4MB in the beginning and 56.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.99ms. Allocated memory is still 130.0MB. Free memory was 56.3MB in the beginning and 54.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 555.81ms. Allocated memory was 130.0MB in the beginning and 184.5MB in the end (delta: 54.5MB). Free memory was 54.7MB in the beginning and 153.0MB in the end (delta: -98.4MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5069.17ms. Allocated memory is still 184.5MB. Free memory was 153.0MB in the beginning and 86.5MB in the end (delta: 66.5MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. * Witness Printer took 58.85ms. Allocated memory is still 184.5MB. Free memory was 86.5MB in the beginning and 84.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 80 PlacesBefore, 31 PlacesAfterwards, 76 TransitionsBefore, 27 TransitionsAfterwards, 420 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 86 TotalNumberOfCompositions, 2099 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1315, independent: 1157, independent conditional: 0, independent unconditional: 1157, dependent: 158, dependent conditional: 0, dependent unconditional: 158, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 424, independent: 393, independent conditional: 0, independent unconditional: 393, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 424, independent: 368, independent conditional: 0, independent unconditional: 368, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 56, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 177, independent: 50, independent conditional: 0, independent unconditional: 50, dependent: 127, dependent conditional: 0, dependent unconditional: 127, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1315, independent: 764, independent conditional: 0, independent unconditional: 764, dependent: 127, dependent conditional: 0, dependent unconditional: 127, unknown: 424, unknown conditional: 0, unknown unconditional: 424] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 74, Positive conditional cache size: 0, Positive unconditional cache size: 74, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 927]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 93 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 47 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 102 IncrementalHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 11 mSDtfsCounter, 102 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 202 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 16:30:22,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ca8988d-6111-40f1-9063-ef9c79bfa030/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE