./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014b85fa-f7ca-461c-a09c-25a3d5a4e7d0/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014b85fa-f7ca-461c-a09c-25a3d5a4e7d0/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014b85fa-f7ca-461c-a09c-25a3d5a4e7d0/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014b85fa-f7ca-461c-a09c-25a3d5a4e7d0/bin/utaipan-verify-mE87zJ7Ire/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014b85fa-f7ca-461c-a09c-25a3d5a4e7d0/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014b85fa-f7ca-461c-a09c-25a3d5a4e7d0/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a900e47bcb0579a731ecfed3c71b01054e5f0917c7f65049265d17494d326436 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:15:23,126 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:15:23,242 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014b85fa-f7ca-461c-a09c-25a3d5a4e7d0/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-23 21:15:23,252 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:15:23,253 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:15:23,287 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:15:23,287 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:15:23,288 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:15:23,289 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:15:23,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:15:23,295 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:15:23,296 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:15:23,297 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:15:23,298 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:15:23,299 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:15:23,299 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:15:23,300 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:15:23,300 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:15:23,301 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:15:23,301 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:15:23,302 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:15:23,302 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:15:23,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:15:23,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:15:23,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:15:23,305 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:15:23,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:15:23,306 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:15:23,307 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:15:23,307 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 21:15:23,308 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 21:15:23,309 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 21:15:23,309 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:15:23,309 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:15:23,310 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:15:23,310 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:15:23,310 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:15:23,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:15:23,311 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:15:23,311 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:15:23,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:15:23,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:15:23,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:15:23,316 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:15:23,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:15:23,317 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:15:23,317 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:15:23,317 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:15:23,317 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_014b85fa-f7ca-461c-a09c-25a3d5a4e7d0/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014b85fa-f7ca-461c-a09c-25a3d5a4e7d0/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a900e47bcb0579a731ecfed3c71b01054e5f0917c7f65049265d17494d326436 [2023-11-23 21:15:23,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:15:23,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:15:23,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:15:23,658 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:15:23,659 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:15:23,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014b85fa-f7ca-461c-a09c-25a3d5a4e7d0/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2023-11-23 21:15:26,769 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:15:27,165 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:15:27,165 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014b85fa-f7ca-461c-a09c-25a3d5a4e7d0/sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2023-11-23 21:15:27,199 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014b85fa-f7ca-461c-a09c-25a3d5a4e7d0/bin/utaipan-verify-mE87zJ7Ire/data/576f95680/2402b7058a2e4c858b3023ca804b0caa/FLAG5f2c02790 [2023-11-23 21:15:27,216 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014b85fa-f7ca-461c-a09c-25a3d5a4e7d0/bin/utaipan-verify-mE87zJ7Ire/data/576f95680/2402b7058a2e4c858b3023ca804b0caa [2023-11-23 21:15:27,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:15:27,225 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:15:27,230 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:15:27,231 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:15:27,237 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:15:27,238 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:15:27" (1/1) ... [2023-11-23 21:15:27,239 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d36d4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:27, skipping insertion in model container [2023-11-23 21:15:27,239 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:15:27" (1/1) ... [2023-11-23 21:15:27,314 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:15:27,708 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:15:27,732 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:15:27,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:15:27,866 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:15:27,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:27 WrapperNode [2023-11-23 21:15:27,867 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:15:27,868 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:15:27,869 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:15:27,869 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:15:27,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:27" (1/1) ... [2023-11-23 21:15:27,906 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:27" (1/1) ... [2023-11-23 21:15:27,929 INFO L138 Inliner]: procedures = 163, calls = 48, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 97 [2023-11-23 21:15:27,930 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:15:27,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:15:27,931 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:15:27,931 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:15:27,941 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:27" (1/1) ... [2023-11-23 21:15:27,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:27" (1/1) ... [2023-11-23 21:15:27,944 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:27" (1/1) ... [2023-11-23 21:15:27,945 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:27" (1/1) ... [2023-11-23 21:15:27,953 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:27" (1/1) ... [2023-11-23 21:15:27,956 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:27" (1/1) ... [2023-11-23 21:15:27,958 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:27" (1/1) ... [2023-11-23 21:15:27,960 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:27" (1/1) ... [2023-11-23 21:15:27,963 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:15:27,964 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:15:27,964 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:15:27,964 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:15:27,965 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:27" (1/1) ... [2023-11-23 21:15:27,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:15:27,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014b85fa-f7ca-461c-a09c-25a3d5a4e7d0/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:15:28,000 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014b85fa-f7ca-461c-a09c-25a3d5a4e7d0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:15:28,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014b85fa-f7ca-461c-a09c-25a3d5a4e7d0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:15:28,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:15:28,038 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-23 21:15:28,038 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-23 21:15:28,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:15:28,039 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-23 21:15:28,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:15:28,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:15:28,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:15:28,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:15:28,040 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-23 21:15:28,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:15:28,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:15:28,042 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 21:15:28,193 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:15:28,197 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:15:28,506 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:15:28,838 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:15:28,841 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:15:28,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:15:28 BoogieIcfgContainer [2023-11-23 21:15:28,843 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:15:28,847 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:15:28,847 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:15:28,849 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:15:28,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:15:27" (1/3) ... [2023-11-23 21:15:28,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e28c875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:15:28, skipping insertion in model container [2023-11-23 21:15:28,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:27" (2/3) ... [2023-11-23 21:15:28,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e28c875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:15:28, skipping insertion in model container [2023-11-23 21:15:28,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:15:28" (3/3) ... [2023-11-23 21:15:28,854 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2023-11-23 21:15:28,871 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:15:28,872 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-23 21:15:28,872 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 21:15:28,912 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-23 21:15:28,957 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 65 places, 67 transitions, 141 flow [2023-11-23 21:15:29,036 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 554 states, 546 states have (on average 2.0714285714285716) internal successors, (1131), 553 states have internal predecessors, (1131), 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) [2023-11-23 21:15:29,059 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:15:29,066 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;@78e2b867, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:15:29,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-23 21:15:29,073 INFO L276 IsEmpty]: Start isEmpty. Operand has 554 states, 546 states have (on average 2.0714285714285716) internal successors, (1131), 553 states have internal predecessors, (1131), 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) [2023-11-23 21:15:29,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-23 21:15:29,083 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:29,084 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-23 21:15:29,084 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2023-11-23 21:15:29,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:29,090 INFO L85 PathProgramCache]: Analyzing trace with hash 11388, now seen corresponding path program 1 times [2023-11-23 21:15:29,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:29,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288673092] [2023-11-23 21:15:29,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:29,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:29,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:15:29,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:29,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288673092] [2023-11-23 21:15:29,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288673092] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:29,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:29,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 21:15:29,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627696946] [2023-11-23 21:15:29,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:29,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:15:29,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:29,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:15:29,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:29,468 INFO L87 Difference]: Start difference. First operand has 554 states, 546 states have (on average 2.0714285714285716) internal successors, (1131), 553 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 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) [2023-11-23 21:15:29,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:29,600 INFO L93 Difference]: Finished difference Result 497 states and 938 transitions. [2023-11-23 21:15:29,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:15:29,603 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 [2023-11-23 21:15:29,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:29,622 INFO L225 Difference]: With dead ends: 497 [2023-11-23 21:15:29,622 INFO L226 Difference]: Without dead ends: 497 [2023-11-23 21:15:29,624 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 [2023-11-23 21:15:29,628 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 51 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:29,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 20 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:15:29,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2023-11-23 21:15:29,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 497. [2023-11-23 21:15:29,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 491 states have (on average 1.910386965376782) internal successors, (938), 496 states have internal predecessors, (938), 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) [2023-11-23 21:15:29,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 938 transitions. [2023-11-23 21:15:29,763 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 938 transitions. Word has length 2 [2023-11-23 21:15:29,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:29,763 INFO L495 AbstractCegarLoop]: Abstraction has 497 states and 938 transitions. [2023-11-23 21:15:29,764 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) [2023-11-23 21:15:29,764 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 938 transitions. [2023-11-23 21:15:29,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-23 21:15:29,765 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:29,765 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-23 21:15:29,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:15:29,766 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2023-11-23 21:15:29,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:29,767 INFO L85 PathProgramCache]: Analyzing trace with hash 11389, now seen corresponding path program 1 times [2023-11-23 21:15:29,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:29,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853876509] [2023-11-23 21:15:29,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:29,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:29,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:15:29,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:29,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853876509] [2023-11-23 21:15:29,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853876509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:29,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:29,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 21:15:29,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392575120] [2023-11-23 21:15:29,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:29,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:15:29,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:29,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:15:29,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:29,925 INFO L87 Difference]: Start difference. First operand 497 states and 938 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) [2023-11-23 21:15:30,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:30,018 INFO L93 Difference]: Finished difference Result 482 states and 910 transitions. [2023-11-23 21:15:30,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:15:30,019 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 [2023-11-23 21:15:30,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:30,026 INFO L225 Difference]: With dead ends: 482 [2023-11-23 21:15:30,026 INFO L226 Difference]: Without dead ends: 482 [2023-11-23 21:15:30,033 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 [2023-11-23 21:15:30,035 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 49 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:30,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 21 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:15:30,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2023-11-23 21:15:30,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2023-11-23 21:15:30,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 478 states have (on average 1.903765690376569) internal successors, (910), 481 states have internal predecessors, (910), 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) [2023-11-23 21:15:30,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 910 transitions. [2023-11-23 21:15:30,106 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 910 transitions. Word has length 2 [2023-11-23 21:15:30,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:30,106 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 910 transitions. [2023-11-23 21:15:30,107 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) [2023-11-23 21:15:30,107 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 910 transitions. [2023-11-23 21:15:30,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 21:15:30,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:30,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:15:30,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:15:30,109 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2023-11-23 21:15:30,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:30,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1174802802, now seen corresponding path program 1 times [2023-11-23 21:15:30,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:30,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987621752] [2023-11-23 21:15:30,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:30,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:30,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:30,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:15:30,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:30,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987621752] [2023-11-23 21:15:30,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987621752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:30,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:30,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:15:30,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131025184] [2023-11-23 21:15:30,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:30,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:15:30,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:30,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:15:30,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:15:30,373 INFO L87 Difference]: Start difference. First operand 482 states and 910 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-23 21:15:30,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:30,542 INFO L93 Difference]: Finished difference Result 460 states and 865 transitions. [2023-11-23 21:15:30,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:15:30,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2023-11-23 21:15:30,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:30,552 INFO L225 Difference]: With dead ends: 460 [2023-11-23 21:15:30,552 INFO L226 Difference]: Without dead ends: 460 [2023-11-23 21:15:30,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:15:30,562 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 47 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:30,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 63 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:15:30,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2023-11-23 21:15:30,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2023-11-23 21:15:30,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 456 states have (on average 1.8969298245614035) internal successors, (865), 459 states have internal predecessors, (865), 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) [2023-11-23 21:15:30,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 865 transitions. [2023-11-23 21:15:30,596 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 865 transitions. Word has length 11 [2023-11-23 21:15:30,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:30,597 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 865 transitions. [2023-11-23 21:15:30,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-23 21:15:30,597 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 865 transitions. [2023-11-23 21:15:30,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 21:15:30,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:30,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:15:30,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:15:30,600 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2023-11-23 21:15:30,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:30,603 INFO L85 PathProgramCache]: Analyzing trace with hash -590104447, now seen corresponding path program 1 times [2023-11-23 21:15:30,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:30,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374207694] [2023-11-23 21:15:30,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:30,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:30,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:15:30,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:30,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374207694] [2023-11-23 21:15:30,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374207694] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:30,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:30,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:15:30,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043669529] [2023-11-23 21:15:30,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:30,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:15:30,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:30,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:15:30,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:15:30,849 INFO L87 Difference]: Start difference. First operand 460 states and 865 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:15:30,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:30,979 INFO L93 Difference]: Finished difference Result 454 states and 852 transitions. [2023-11-23 21:15:30,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:15:30,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-23 21:15:30,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:30,984 INFO L225 Difference]: With dead ends: 454 [2023-11-23 21:15:30,984 INFO L226 Difference]: Without dead ends: 454 [2023-11-23 21:15:30,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:15:30,993 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 39 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:30,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 65 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:15:30,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2023-11-23 21:15:31,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 454. [2023-11-23 21:15:31,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 450 states have (on average 1.8933333333333333) internal successors, (852), 453 states have internal predecessors, (852), 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) [2023-11-23 21:15:31,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 852 transitions. [2023-11-23 21:15:31,018 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 852 transitions. Word has length 13 [2023-11-23 21:15:31,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:31,019 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 852 transitions. [2023-11-23 21:15:31,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:15:31,019 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 852 transitions. [2023-11-23 21:15:31,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 21:15:31,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:31,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:15:31,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:15:31,028 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2023-11-23 21:15:31,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:31,030 INFO L85 PathProgramCache]: Analyzing trace with hash 570040952, now seen corresponding path program 1 times [2023-11-23 21:15:31,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:31,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689102547] [2023-11-23 21:15:31,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:31,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:31,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:31,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:15:31,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:31,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689102547] [2023-11-23 21:15:31,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689102547] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:31,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:31,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:15:31,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652234370] [2023-11-23 21:15:31,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:31,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:15:31,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:31,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:15:31,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:15:31,228 INFO L87 Difference]: Start difference. First operand 454 states and 852 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:15:31,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:31,356 INFO L93 Difference]: Finished difference Result 430 states and 805 transitions. [2023-11-23 21:15:31,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:15:31,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-23 21:15:31,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:31,363 INFO L225 Difference]: With dead ends: 430 [2023-11-23 21:15:31,363 INFO L226 Difference]: Without dead ends: 430 [2023-11-23 21:15:31,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:15:31,364 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 75 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:31,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 56 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:15:31,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2023-11-23 21:15:31,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 412. [2023-11-23 21:15:31,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 409 states have (on average 1.885085574572127) internal successors, (771), 411 states have internal predecessors, (771), 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) [2023-11-23 21:15:31,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 771 transitions. [2023-11-23 21:15:31,383 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 771 transitions. Word has length 18 [2023-11-23 21:15:31,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:31,383 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 771 transitions. [2023-11-23 21:15:31,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:15:31,384 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 771 transitions. [2023-11-23 21:15:31,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 21:15:31,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:31,385 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:15:31,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:15:31,386 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2023-11-23 21:15:31,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:31,387 INFO L85 PathProgramCache]: Analyzing trace with hash 149445163, now seen corresponding path program 1 times [2023-11-23 21:15:31,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:31,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511564261] [2023-11-23 21:15:31,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:31,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:31,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:15:31,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:31,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511564261] [2023-11-23 21:15:31,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511564261] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:31,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:31,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:15:31,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972688560] [2023-11-23 21:15:31,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:31,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:15:31,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:31,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:15:31,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:15:31,510 INFO L87 Difference]: Start difference. First operand 412 states and 771 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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) [2023-11-23 21:15:31,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:31,679 INFO L93 Difference]: Finished difference Result 406 states and 761 transitions. [2023-11-23 21:15:31,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:15:31,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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 20 [2023-11-23 21:15:31,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:31,684 INFO L225 Difference]: With dead ends: 406 [2023-11-23 21:15:31,684 INFO L226 Difference]: Without dead ends: 406 [2023-11-23 21:15:31,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:15:31,685 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 119 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:31,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 83 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:15:31,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2023-11-23 21:15:31,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 392. [2023-11-23 21:15:31,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 390 states have (on average 1.8846153846153846) internal successors, (735), 391 states have internal predecessors, (735), 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) [2023-11-23 21:15:31,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 735 transitions. [2023-11-23 21:15:31,703 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 735 transitions. Word has length 20 [2023-11-23 21:15:31,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:31,704 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 735 transitions. [2023-11-23 21:15:31,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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) [2023-11-23 21:15:31,704 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 735 transitions. [2023-11-23 21:15:31,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 21:15:31,706 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:31,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:15:31,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:15:31,706 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2023-11-23 21:15:31,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:31,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1420238319, now seen corresponding path program 1 times [2023-11-23 21:15:31,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:31,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800165772] [2023-11-23 21:15:31,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:31,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:31,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:15:31,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:31,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800165772] [2023-11-23 21:15:31,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800165772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:31,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:31,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:15:31,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565813257] [2023-11-23 21:15:31,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:31,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:15:31,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:31,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:15:31,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:15:31,968 INFO L87 Difference]: Start difference. First operand 392 states and 735 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-11-23 21:15:32,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:32,067 INFO L93 Difference]: Finished difference Result 380 states and 664 transitions. [2023-11-23 21:15:32,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:15:32,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2023-11-23 21:15:32,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:32,071 INFO L225 Difference]: With dead ends: 380 [2023-11-23 21:15:32,071 INFO L226 Difference]: Without dead ends: 380 [2023-11-23 21:15:32,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:15:32,073 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 79 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:32,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 65 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:15:32,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-11-23 21:15:32,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 334. [2023-11-23 21:15:32,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 331 states have (on average 1.7794561933534743) internal successors, (589), 333 states have internal predecessors, (589), 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) [2023-11-23 21:15:32,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 589 transitions. [2023-11-23 21:15:32,086 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 589 transitions. Word has length 26 [2023-11-23 21:15:32,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:32,087 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 589 transitions. [2023-11-23 21:15:32,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-11-23 21:15:32,087 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 589 transitions. [2023-11-23 21:15:32,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-23 21:15:32,088 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:32,089 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:15:32,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 21:15:32,089 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2023-11-23 21:15:32,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:32,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1965179965, now seen corresponding path program 1 times [2023-11-23 21:15:32,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:32,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401727054] [2023-11-23 21:15:32,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:32,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:32,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:15:32,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:32,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401727054] [2023-11-23 21:15:32,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401727054] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:32,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:32,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:15:32,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544438066] [2023-11-23 21:15:32,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:32,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:15:32,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:32,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:15:32,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:15:32,487 INFO L87 Difference]: Start difference. First operand 334 states and 589 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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) [2023-11-23 21:15:32,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:32,583 INFO L93 Difference]: Finished difference Result 258 states and 434 transitions. [2023-11-23 21:15:32,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:15:32,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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 27 [2023-11-23 21:15:32,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:32,586 INFO L225 Difference]: With dead ends: 258 [2023-11-23 21:15:32,586 INFO L226 Difference]: Without dead ends: 258 [2023-11-23 21:15:32,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:15:32,588 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 77 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:32,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 46 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:15:32,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2023-11-23 21:15:32,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2023-11-23 21:15:32,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 256 states have (on average 1.6953125) internal successors, (434), 257 states have internal predecessors, (434), 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) [2023-11-23 21:15:32,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 434 transitions. [2023-11-23 21:15:32,598 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 434 transitions. Word has length 27 [2023-11-23 21:15:32,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:32,599 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 434 transitions. [2023-11-23 21:15:32,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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) [2023-11-23 21:15:32,599 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 434 transitions. [2023-11-23 21:15:32,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-23 21:15:32,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:32,601 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:15:32,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 21:15:32,601 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2023-11-23 21:15:32,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:32,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1375817852, now seen corresponding path program 1 times [2023-11-23 21:15:32,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:32,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919678454] [2023-11-23 21:15:32,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:32,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:32,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:15:32,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:32,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919678454] [2023-11-23 21:15:32,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919678454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:32,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:32,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:15:32,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508456706] [2023-11-23 21:15:32,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:32,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:15:32,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:32,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:15:32,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:15:32,856 INFO L87 Difference]: Start difference. First operand 258 states and 434 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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) [2023-11-23 21:15:32,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:32,957 INFO L93 Difference]: Finished difference Result 252 states and 425 transitions. [2023-11-23 21:15:32,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:15:32,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2023-11-23 21:15:32,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:32,960 INFO L225 Difference]: With dead ends: 252 [2023-11-23 21:15:32,960 INFO L226 Difference]: Without dead ends: 252 [2023-11-23 21:15:32,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:15:32,962 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 41 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:32,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 62 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:15:32,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-11-23 21:15:32,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2023-11-23 21:15:32,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 251 states have (on average 1.6932270916334662) internal successors, (425), 251 states have internal predecessors, (425), 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) [2023-11-23 21:15:32,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 425 transitions. [2023-11-23 21:15:32,973 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 425 transitions. Word has length 33 [2023-11-23 21:15:32,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:32,975 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 425 transitions. [2023-11-23 21:15:32,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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) [2023-11-23 21:15:32,975 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 425 transitions. [2023-11-23 21:15:32,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-23 21:15:32,978 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:32,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:15:32,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 21:15:32,979 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2023-11-23 21:15:32,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:32,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1467228018, now seen corresponding path program 1 times [2023-11-23 21:15:32,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:32,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901528150] [2023-11-23 21:15:32,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:32,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:33,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:33,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:15:33,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:33,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901528150] [2023-11-23 21:15:33,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901528150] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:33,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:33,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:15:33,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366064599] [2023-11-23 21:15:33,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:33,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:15:33,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:33,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:15:33,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:15:33,297 INFO L87 Difference]: Start difference. First operand 252 states and 425 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2023-11-23 21:15:33,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:33,355 INFO L93 Difference]: Finished difference Result 251 states and 424 transitions. [2023-11-23 21:15:33,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:15:33,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2023-11-23 21:15:33,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:33,356 INFO L225 Difference]: With dead ends: 251 [2023-11-23 21:15:33,356 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:15:33,357 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 [2023-11-23 21:15:33,357 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:33,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:15:33,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:15:33,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:15:33,359 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) [2023-11-23 21:15:33,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:15:33,360 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2023-11-23 21:15:33,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:33,360 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:15:33,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2023-11-23 21:15:33,361 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:15:33,361 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:15:33,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 9 remaining) [2023-11-23 21:15:33,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 9 remaining) [2023-11-23 21:15:33,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 9 remaining) [2023-11-23 21:15:33,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (5 of 9 remaining) [2023-11-23 21:15:33,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (4 of 9 remaining) [2023-11-23 21:15:33,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 9 remaining) [2023-11-23 21:15:33,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 9 remaining) [2023-11-23 21:15:33,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (1 of 9 remaining) [2023-11-23 21:15:33,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 9 remaining) [2023-11-23 21:15:33,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 21:15:33,370 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:15:33,374 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-23 21:15:33,374 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:15:33,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:15:33 BasicIcfg [2023-11-23 21:15:33,378 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:15:33,378 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:15:33,379 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:15:33,379 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:15:33,379 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:15:28" (3/4) ... [2023-11-23 21:15:33,382 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:15:33,386 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2023-11-23 21:15:33,392 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2023-11-23 21:15:33,392 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-23 21:15:33,393 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 21:15:33,393 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-23 21:15:33,487 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014b85fa-f7ca-461c-a09c-25a3d5a4e7d0/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 21:15:33,488 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014b85fa-f7ca-461c-a09c-25a3d5a4e7d0/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 21:15:33,488 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:15:33,489 INFO L158 Benchmark]: Toolchain (without parser) took 6263.32ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 117.0MB in the beginning and 60.0MB in the end (delta: 57.0MB). Peak memory consumption was 90.0MB. Max. memory is 16.1GB. [2023-11-23 21:15:33,489 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 109.1MB. Free memory is still 59.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:15:33,490 INFO L158 Benchmark]: CACSL2BoogieTranslator took 637.81ms. Allocated memory is still 148.9MB. Free memory was 117.0MB in the beginning and 97.2MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 21:15:33,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.70ms. Allocated memory is still 148.9MB. Free memory was 97.2MB in the beginning and 94.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:15:33,491 INFO L158 Benchmark]: Boogie Preprocessor took 32.65ms. Allocated memory is still 148.9MB. Free memory was 94.9MB in the beginning and 93.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:15:33,491 INFO L158 Benchmark]: RCFGBuilder took 878.72ms. Allocated memory is still 148.9MB. Free memory was 93.5MB in the beginning and 104.0MB in the end (delta: -10.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-23 21:15:33,492 INFO L158 Benchmark]: TraceAbstraction took 4530.96ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 103.3MB in the beginning and 64.2MB in the end (delta: 39.1MB). Peak memory consumption was 73.7MB. Max. memory is 16.1GB. [2023-11-23 21:15:33,492 INFO L158 Benchmark]: Witness Printer took 109.74ms. Allocated memory is still 180.4MB. Free memory was 64.2MB in the beginning and 60.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:15:33,495 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 109.1MB. Free memory is still 59.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 637.81ms. Allocated memory is still 148.9MB. Free memory was 117.0MB in the beginning and 97.2MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.70ms. Allocated memory is still 148.9MB. Free memory was 97.2MB in the beginning and 94.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.65ms. Allocated memory is still 148.9MB. Free memory was 94.9MB in the beginning and 93.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 878.72ms. Allocated memory is still 148.9MB. Free memory was 93.5MB in the beginning and 104.0MB in the end (delta: -10.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4530.96ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 103.3MB in the beginning and 64.2MB in the end (delta: 39.1MB). Peak memory consumption was 73.7MB. Max. memory is 16.1GB. * Witness Printer took 109.74ms. Allocated memory is still 180.4MB. Free memory was 64.2MB in the beginning and 60.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: 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: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: 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: 696]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 77 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 577 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 577 mSDsluCounter, 507 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 278 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 867 IncrementalHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 229 mSDtfsCounter, 867 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=554occurred in iteration=0, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 78 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 185 ConstructedInterpolants, 0 QuantifiedInterpolants, 950 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-23 21:15:33,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014b85fa-f7ca-461c-a09c-25a3d5a4e7d0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE