./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd16eef6-9ba8-4a41-8742-449baca51422/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd16eef6-9ba8-4a41-8742-449baca51422/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd16eef6-9ba8-4a41-8742-449baca51422/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd16eef6-9ba8-4a41-8742-449baca51422/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd16eef6-9ba8-4a41-8742-449baca51422/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd16eef6-9ba8-4a41-8742-449baca51422/bin/uautomizer-tPACEb0tL8 --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 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:02:07,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:02:07,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:02:07,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:02:07,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:02:07,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:02:07,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:02:07,428 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:02:07,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:02:07,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:02:07,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:02:07,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:02:07,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:02:07,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:02:07,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:02:07,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:02:07,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:02:07,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:02:07,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:02:07,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:02:07,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:02:07,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:02:07,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:02:07,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:02:07,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:02:07,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:02:07,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:02:07,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:02:07,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:02:07,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:02:07,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:02:07,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:02:07,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:02:07,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:02:07,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:02:07,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:02:07,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:02:07,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:02:07,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:02:07,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:02:07,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:02:07,494 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd16eef6-9ba8-4a41-8742-449baca51422/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-16 11:02:07,517 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:02:07,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:02:07,518 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:02:07,518 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:02:07,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:02:07,519 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:02:07,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:02:07,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:02:07,520 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:02:07,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:02:07,520 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:02:07,520 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:02:07,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:02:07,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:02:07,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:02:07,521 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 11:02:07,521 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 11:02:07,521 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 11:02:07,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:02:07,522 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:02:07,522 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:02:07,522 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:02:07,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:02:07,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:02:07,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:02:07,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:02:07,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:02:07,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:02:07,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:02:07,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:02:07,524 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_cd16eef6-9ba8-4a41-8742-449baca51422/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd16eef6-9ba8-4a41-8742-449baca51422/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e [2022-11-16 11:02:07,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:02:07,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:02:07,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:02:07,905 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:02:07,906 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:02:07,907 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd16eef6-9ba8-4a41-8742-449baca51422/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2022-11-16 11:02:07,982 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd16eef6-9ba8-4a41-8742-449baca51422/bin/uautomizer-tPACEb0tL8/data/1596a7beb/1689e1448f9642f7a0f870991de0b5ad/FLAG5d4851da8 [2022-11-16 11:02:08,753 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:02:08,754 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd16eef6-9ba8-4a41-8742-449baca51422/sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2022-11-16 11:02:08,786 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd16eef6-9ba8-4a41-8742-449baca51422/bin/uautomizer-tPACEb0tL8/data/1596a7beb/1689e1448f9642f7a0f870991de0b5ad/FLAG5d4851da8 [2022-11-16 11:02:08,866 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd16eef6-9ba8-4a41-8742-449baca51422/bin/uautomizer-tPACEb0tL8/data/1596a7beb/1689e1448f9642f7a0f870991de0b5ad [2022-11-16 11:02:08,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:02:08,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:02:08,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:02:08,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:02:08,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:02:08,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:02:08" (1/1) ... [2022-11-16 11:02:08,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c629aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:08, skipping insertion in model container [2022-11-16 11:02:08,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:02:08" (1/1) ... [2022-11-16 11:02:08,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:02:08,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:02:09,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:02:09,923 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:02:09,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:02:10,099 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:02:10,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:10 WrapperNode [2022-11-16 11:02:10,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:02:10,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:02:10,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:02:10,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:02:10,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:10" (1/1) ... [2022-11-16 11:02:10,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:10" (1/1) ... [2022-11-16 11:02:10,194 INFO L138 Inliner]: procedures = 524, calls = 63, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 125 [2022-11-16 11:02:10,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:02:10,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:02:10,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:02:10,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:02:10,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:10" (1/1) ... [2022-11-16 11:02:10,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:10" (1/1) ... [2022-11-16 11:02:10,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:10" (1/1) ... [2022-11-16 11:02:10,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:10" (1/1) ... [2022-11-16 11:02:10,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:10" (1/1) ... [2022-11-16 11:02:10,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:10" (1/1) ... [2022-11-16 11:02:10,277 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:10" (1/1) ... [2022-11-16 11:02:10,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:10" (1/1) ... [2022-11-16 11:02:10,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:02:10,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:02:10,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:02:10,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:02:10,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:10" (1/1) ... [2022-11-16 11:02:10,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:02:10,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd16eef6-9ba8-4a41-8742-449baca51422/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:02:10,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd16eef6-9ba8-4a41-8742-449baca51422/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:02:10,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd16eef6-9ba8-4a41-8742-449baca51422/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:02:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2022-11-16 11:02:10,380 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2022-11-16 11:02:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-16 11:02:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2022-11-16 11:02:10,381 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2022-11-16 11:02:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2022-11-16 11:02:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:02:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:02:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:02:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:02:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:02:10,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:02:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:02:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-11-16 11:02:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-16 11:02:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:02:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:02:10,385 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:02:10,763 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:02:10,765 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:02:11,109 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:02:11,119 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:02:11,119 INFO L300 CfgBuilder]: Removed 19 assume(true) statements. [2022-11-16 11:02:11,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:02:11 BoogieIcfgContainer [2022-11-16 11:02:11,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:02:11,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:02:11,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:02:11,135 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:02:11,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:02:08" (1/3) ... [2022-11-16 11:02:11,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406f1180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:02:11, skipping insertion in model container [2022-11-16 11:02:11,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:10" (2/3) ... [2022-11-16 11:02:11,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406f1180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:02:11, skipping insertion in model container [2022-11-16 11:02:11,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:02:11" (3/3) ... [2022-11-16 11:02:11,140 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_36-trylock_nr.i [2022-11-16 11:02:11,161 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:02:11,161 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-16 11:02:11,161 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:02:11,302 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 11:02:11,357 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 11:02:11,379 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 207 places, 232 transitions, 480 flow [2022-11-16 11:02:11,382 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 207 places, 232 transitions, 480 flow [2022-11-16 11:02:11,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 207 places, 232 transitions, 480 flow [2022-11-16 11:02:11,478 INFO L130 PetriNetUnfolder]: 32/230 cut-off events. [2022-11-16 11:02:11,478 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:02:11,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 230 events. 32/230 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 470 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 140. Up to 5 conditions per place. [2022-11-16 11:02:11,493 INFO L119 LiptonReduction]: Number of co-enabled transitions 9878 [2022-11-16 11:02:42,185 INFO L134 LiptonReduction]: Checked pairs total: 9596 [2022-11-16 11:02:42,186 INFO L136 LiptonReduction]: Total number of compositions: 244 [2022-11-16 11:02:42,194 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 60 transitions, 136 flow [2022-11-16 11:02:42,252 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 338 states, 329 states have (on average 4.379939209726444) internal successors, (1441), 337 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:02:42,271 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:02:42,277 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;@7c1776b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:02:42,278 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-16 11:02:42,281 INFO L276 IsEmpty]: Start isEmpty. Operand has 338 states, 329 states have (on average 4.379939209726444) internal successors, (1441), 337 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:02:42,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-16 11:02:42,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:02:42,287 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-16 11:02:42,288 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 8 more)] === [2022-11-16 11:02:42,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:02:42,293 INFO L85 PathProgramCache]: Analyzing trace with hash 961, now seen corresponding path program 1 times [2022-11-16 11:02:42,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:02:42,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162203062] [2022-11-16 11:02:42,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:02:42,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:02:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:02:42,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:02:42,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:02:42,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162203062] [2022-11-16 11:02:42,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162203062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:02:42,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:02:42,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-16 11:02:42,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131244168] [2022-11-16 11:02:42,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:02:42,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:02:42,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:02:42,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:02:42,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:02:42,665 INFO L87 Difference]: Start difference. First operand has 338 states, 329 states have (on average 4.379939209726444) internal successors, (1441), 337 states have internal predecessors, (1441), 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) [2022-11-16 11:02:42,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:02:42,788 INFO L93 Difference]: Finished difference Result 232 states and 677 transitions. [2022-11-16 11:02:42,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:02:42,791 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 [2022-11-16 11:02:42,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:02:42,812 INFO L225 Difference]: With dead ends: 232 [2022-11-16 11:02:42,812 INFO L226 Difference]: Without dead ends: 198 [2022-11-16 11:02:42,813 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 [2022-11-16 11:02:42,819 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:02:42,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:02:42,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-16 11:02:42,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-11-16 11:02:42,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 183 states have (on average 3.109289617486339) internal successors, (569), 197 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:02:42,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 569 transitions. [2022-11-16 11:02:42,907 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 569 transitions. Word has length 1 [2022-11-16 11:02:42,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:02:42,907 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 569 transitions. [2022-11-16 11:02:42,908 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) [2022-11-16 11:02:42,908 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 569 transitions. [2022-11-16 11:02:42,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-16 11:02:42,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:02:42,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-16 11:02:42,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:02:42,909 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 8 more)] === [2022-11-16 11:02:42,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:02:42,910 INFO L85 PathProgramCache]: Analyzing trace with hash 30240, now seen corresponding path program 1 times [2022-11-16 11:02:42,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:02:42,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276179400] [2022-11-16 11:02:42,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:02:42,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:02:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:02:43,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:02:43,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:02:43,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276179400] [2022-11-16 11:02:43,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276179400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:02:43,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:02:43,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:02:43,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712210098] [2022-11-16 11:02:43,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:02:43,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:02:43,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:02:43,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:02:43,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:02:43,263 INFO L87 Difference]: Start difference. First operand 198 states and 569 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:02:43,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:02:43,363 INFO L93 Difference]: Finished difference Result 199 states and 569 transitions. [2022-11-16 11:02:43,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:02:43,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-16 11:02:43,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:02:43,385 INFO L225 Difference]: With dead ends: 199 [2022-11-16 11:02:43,385 INFO L226 Difference]: Without dead ends: 198 [2022-11-16 11:02:43,386 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 [2022-11-16 11:02:43,390 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:02:43,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:02:43,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-16 11:02:43,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-11-16 11:02:43,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 183 states have (on average 3.1038251366120218) internal successors, (568), 197 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:02:43,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 568 transitions. [2022-11-16 11:02:43,411 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 568 transitions. Word has length 2 [2022-11-16 11:02:43,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:02:43,411 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 568 transitions. [2022-11-16 11:02:43,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:02:43,412 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 568 transitions. [2022-11-16 11:02:43,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 11:02:43,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:02:43,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-16 11:02:43,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:02:43,413 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 8 more)] === [2022-11-16 11:02:43,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:02:43,416 INFO L85 PathProgramCache]: Analyzing trace with hash 29373387, now seen corresponding path program 1 times [2022-11-16 11:02:43,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:02:43,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125177858] [2022-11-16 11:02:43,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:02:43,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:02:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:02:43,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:02:43,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:02:43,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125177858] [2022-11-16 11:02:43,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125177858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:02:43,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:02:43,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:02:43,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371393403] [2022-11-16 11:02:43,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:02:43,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:02:43,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:02:43,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:02:43,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:02:43,533 INFO L87 Difference]: Start difference. First operand 198 states and 568 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:02:43,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:02:43,612 INFO L93 Difference]: Finished difference Result 187 states and 544 transitions. [2022-11-16 11:02:43,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:02:43,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-16 11:02:43,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:02:43,615 INFO L225 Difference]: With dead ends: 187 [2022-11-16 11:02:43,615 INFO L226 Difference]: Without dead ends: 187 [2022-11-16 11:02:43,615 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 [2022-11-16 11:02:43,616 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:02:43,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 4 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:02:43,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-11-16 11:02:43,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2022-11-16 11:02:43,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 176 states have (on average 3.090909090909091) internal successors, (544), 186 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:02:43,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 544 transitions. [2022-11-16 11:02:43,633 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 544 transitions. Word has length 4 [2022-11-16 11:02:43,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:02:43,634 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 544 transitions. [2022-11-16 11:02:43,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:02:43,634 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 544 transitions. [2022-11-16 11:02:43,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 11:02:43,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:02:43,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-16 11:02:43,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:02:43,635 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 8 more)] === [2022-11-16 11:02:43,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:02:43,635 INFO L85 PathProgramCache]: Analyzing trace with hash 29373388, now seen corresponding path program 1 times [2022-11-16 11:02:43,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:02:43,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740981740] [2022-11-16 11:02:43,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:02:43,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:02:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:02:43,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:02:43,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:02:43,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740981740] [2022-11-16 11:02:43,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740981740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:02:43,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:02:43,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:02:43,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246633866] [2022-11-16 11:02:43,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:02:43,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:02:43,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:02:43,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:02:43,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:02:43,802 INFO L87 Difference]: Start difference. First operand 187 states and 544 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:02:43,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:02:43,865 INFO L93 Difference]: Finished difference Result 176 states and 520 transitions. [2022-11-16 11:02:43,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:02:43,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-16 11:02:43,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:02:43,868 INFO L225 Difference]: With dead ends: 176 [2022-11-16 11:02:43,868 INFO L226 Difference]: Without dead ends: 164 [2022-11-16 11:02:43,868 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 [2022-11-16 11:02:43,869 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 23 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:02:43,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 5 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:02:43,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-16 11:02:43,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2022-11-16 11:02:43,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 157 states have (on average 3.0955414012738856) internal successors, (486), 163 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:02:43,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 486 transitions. [2022-11-16 11:02:43,881 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 486 transitions. Word has length 4 [2022-11-16 11:02:43,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:02:43,882 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 486 transitions. [2022-11-16 11:02:43,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:02:43,883 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 486 transitions. [2022-11-16 11:02:43,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 11:02:43,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:02:43,884 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:02:43,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:02:43,884 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 8 more)] === [2022-11-16 11:02:43,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:02:43,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1110100255, now seen corresponding path program 1 times [2022-11-16 11:02:43,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:02:43,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2821002] [2022-11-16 11:02:43,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:02:43,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:02:43,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:02:44,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:02:44,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:02:44,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2821002] [2022-11-16 11:02:44,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2821002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:02:44,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:02:44,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:02:44,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641374330] [2022-11-16 11:02:44,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:02:44,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:02:44,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:02:44,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:02:44,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:02:44,048 INFO L87 Difference]: Start difference. First operand 164 states and 486 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:02:44,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:02:44,109 INFO L93 Difference]: Finished difference Result 136 states and 391 transitions. [2022-11-16 11:02:44,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:02:44,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-16 11:02:44,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:02:44,111 INFO L225 Difference]: With dead ends: 136 [2022-11-16 11:02:44,112 INFO L226 Difference]: Without dead ends: 136 [2022-11-16 11:02:44,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:02:44,113 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:02:44,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 3 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:02:44,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-16 11:02:44,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2022-11-16 11:02:44,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 132 states have (on average 2.962121212121212) internal successors, (391), 135 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:02:44,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 391 transitions. [2022-11-16 11:02:44,122 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 391 transitions. Word has length 7 [2022-11-16 11:02:44,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:02:44,123 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 391 transitions. [2022-11-16 11:02:44,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:02:44,123 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 391 transitions. [2022-11-16 11:02:44,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 11:02:44,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:02:44,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:02:44,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:02:44,125 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 8 more)] === [2022-11-16 11:02:44,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:02:44,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1110100254, now seen corresponding path program 1 times [2022-11-16 11:02:44,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:02:44,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054559593] [2022-11-16 11:02:44,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:02:44,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:02:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:02:44,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:02:44,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:02:44,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054559593] [2022-11-16 11:02:44,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054559593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:02:44,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:02:44,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:02:44,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304038243] [2022-11-16 11:02:44,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:02:44,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:02:44,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:02:44,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:02:44,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:02:44,233 INFO L87 Difference]: Start difference. First operand 136 states and 391 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:02:44,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:02:44,283 INFO L93 Difference]: Finished difference Result 108 states and 296 transitions. [2022-11-16 11:02:44,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:02:44,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-16 11:02:44,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:02:44,284 INFO L225 Difference]: With dead ends: 108 [2022-11-16 11:02:44,285 INFO L226 Difference]: Without dead ends: 92 [2022-11-16 11:02:44,285 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 [2022-11-16 11:02:44,286 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 18 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:02:44,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 4 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:02:44,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-16 11:02:44,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-11-16 11:02:44,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 2.769230769230769) internal successors, (252), 91 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:02:44,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 252 transitions. [2022-11-16 11:02:44,291 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 252 transitions. Word has length 7 [2022-11-16 11:02:44,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:02:44,292 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 252 transitions. [2022-11-16 11:02:44,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:02:44,292 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 252 transitions. [2022-11-16 11:02:44,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 11:02:44,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:02:44,293 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:02:44,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:02:44,294 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 8 more)] === [2022-11-16 11:02:44,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:02:44,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1452720242, now seen corresponding path program 1 times [2022-11-16 11:02:44,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:02:44,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110499339] [2022-11-16 11:02:44,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:02:44,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:02:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:02:44,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:02:44,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:02:44,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110499339] [2022-11-16 11:02:44,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110499339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:02:44,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:02:44,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:02:44,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193241868] [2022-11-16 11:02:44,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:02:44,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:02:44,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:02:44,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:02:44,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:02:44,769 INFO L87 Difference]: Start difference. First operand 92 states and 252 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:02:44,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:02:44,845 INFO L93 Difference]: Finished difference Result 91 states and 251 transitions. [2022-11-16 11:02:44,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:02:44,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-16 11:02:44,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:02:44,846 INFO L225 Difference]: With dead ends: 91 [2022-11-16 11:02:44,846 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 11:02:44,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:02:44,847 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:02:44,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:02:44,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 11:02:44,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 11:02:44,848 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) [2022-11-16 11:02:44,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 11:02:44,849 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-11-16 11:02:44,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:02:44,849 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:02:44,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:02:44,849 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:02:44,849 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 11:02:44,854 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2022-11-16 11:02:44,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2022-11-16 11:02:44,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (8 of 11 remaining) [2022-11-16 11:02:44,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2022-11-16 11:02:44,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2022-11-16 11:02:44,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2022-11-16 11:02:44,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 11 remaining) [2022-11-16 11:02:44,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 11 remaining) [2022-11-16 11:02:44,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 11 remaining) [2022-11-16 11:02:44,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2022-11-16 11:02:44,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2022-11-16 11:02:44,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:02:44,860 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:02:44,863 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:02:44,867 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:02:44,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:02:44 BasicIcfg [2022-11-16 11:02:44,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:02:44,872 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:02:44,872 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:02:44,873 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:02:44,874 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:02:11" (3/4) ... [2022-11-16 11:02:44,877 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:02:44,885 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure monitor_thread [2022-11-16 11:02:44,886 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure counter_thread [2022-11-16 11:02:44,894 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2022-11-16 11:02:44,894 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-16 11:02:44,894 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-16 11:02:44,895 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 11:02:44,895 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:02:44,947 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd16eef6-9ba8-4a41-8742-449baca51422/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:02:44,948 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:02:44,950 INFO L158 Benchmark]: Toolchain (without parser) took 36079.13ms. Allocated memory was 159.4MB in the beginning and 195.0MB in the end (delta: 35.7MB). Free memory was 123.0MB in the beginning and 139.1MB in the end (delta: -16.1MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2022-11-16 11:02:44,950 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 92.3MB. Free memory is still 44.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:02:44,951 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1228.57ms. Allocated memory is still 159.4MB. Free memory was 123.0MB in the beginning and 85.5MB in the end (delta: 37.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-16 11:02:44,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.18ms. Allocated memory is still 159.4MB. Free memory was 85.5MB in the beginning and 82.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:02:44,951 INFO L158 Benchmark]: Boogie Preprocessor took 87.68ms. Allocated memory is still 159.4MB. Free memory was 82.7MB in the beginning and 79.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:02:44,952 INFO L158 Benchmark]: RCFGBuilder took 834.46ms. Allocated memory is still 159.4MB. Free memory was 79.2MB in the beginning and 53.4MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-16 11:02:44,952 INFO L158 Benchmark]: TraceAbstraction took 33747.71ms. Allocated memory was 159.4MB in the beginning and 195.0MB in the end (delta: 35.7MB). Free memory was 52.6MB in the beginning and 142.2MB in the end (delta: -89.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:02:44,953 INFO L158 Benchmark]: Witness Printer took 76.45ms. Allocated memory is still 195.0MB. Free memory was 142.2MB in the beginning and 139.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:02:44,956 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 92.3MB. Free memory is still 44.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1228.57ms. Allocated memory is still 159.4MB. Free memory was 123.0MB in the beginning and 85.5MB in the end (delta: 37.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.18ms. Allocated memory is still 159.4MB. Free memory was 85.5MB in the beginning and 82.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.68ms. Allocated memory is still 159.4MB. Free memory was 82.7MB in the beginning and 79.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 834.46ms. Allocated memory is still 159.4MB. Free memory was 79.2MB in the beginning and 53.4MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 33747.71ms. Allocated memory was 159.4MB in the beginning and 195.0MB in the end (delta: 35.7MB). Free memory was 52.6MB in the beginning and 142.2MB in the end (delta: -89.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 76.45ms. Allocated memory is still 195.0MB. Free memory was 142.2MB in the beginning and 139.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.8s, 207 PlacesBefore, 46 PlacesAfterwards, 232 TransitionsBefore, 60 TransitionsAfterwards, 9878 CoEnabledTransitionPairs, 8 FixpointIterations, 92 TrivialSequentialCompositions, 108 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 25 ConcurrentYvCompositions, 11 ChoiceCompositions, 244 TotalNumberOfCompositions, 9596 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9168, independent: 9148, independent conditional: 0, independent unconditional: 9148, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6346, independent: 6337, independent conditional: 0, independent unconditional: 6337, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6346, independent: 6334, independent conditional: 0, independent unconditional: 6334, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, independent: 22, independent conditional: 0, independent unconditional: 22, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9168, independent: 2811, independent conditional: 0, independent unconditional: 2811, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 6346, unknown conditional: 0, unknown unconditional: 6346] , Statistics on independence cache: Total cache size (in pairs): 130, Positive cache size: 128, Positive conditional cache size: 0, Positive unconditional cache size: 128, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, 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: 1835]: 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 - 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 5 procedures, 277 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 33.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 30.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 97 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 227 IncrementalHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 33 mSDtfsCounter, 227 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=338occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 393 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:02:45,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd16eef6-9ba8-4a41-8742-449baca51422/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE