./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fdc85b042221b41aa26e62667e19ce1f6c246be9a2cb4f81fe8b15c8429db160 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:30:35,178 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:30:35,298 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-08 17:30:35,309 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:30:35,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:30:35,361 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:30:35,363 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:30:35,364 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:30:35,365 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:30:35,367 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:30:35,368 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:30:35,369 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:30:35,369 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:30:35,373 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:30:35,373 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:30:35,374 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:30:35,374 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:30:35,375 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:30:35,375 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:30:35,376 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:30:35,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:30:35,380 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:30:35,381 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 17:30:35,381 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 17:30:35,381 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:30:35,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:30:35,382 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 17:30:35,382 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:30:35,383 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:30:35,383 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:30:35,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:30:35,383 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:30:35,386 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:30:35,387 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:30:35,388 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:30:35,389 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:30:35,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:30:35,390 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:30:35,390 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:30:35,390 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:30:35,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:30:35,391 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:30:35,391 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:30:35,391 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:30:35,392 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:30:35,392 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdc85b042221b41aa26e62667e19ce1f6c246be9a2cb4f81fe8b15c8429db160 [2024-11-08 17:30:35,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:30:35,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:30:35,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:30:35,782 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:30:35,784 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:30:35,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-1.i Unable to find full path for "g++" [2024-11-08 17:30:38,408 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:30:38,816 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:30:38,817 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-1.i [2024-11-08 17:30:38,841 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/data/0bc799109/fb5dd280b19b4164a5ce9b030f59b8a1/FLAG23e5f25d2 [2024-11-08 17:30:38,881 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/data/0bc799109/fb5dd280b19b4164a5ce9b030f59b8a1 [2024-11-08 17:30:38,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:30:38,889 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:30:38,891 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:30:38,892 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:30:38,900 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:30:38,901 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:30:38" (1/1) ... [2024-11-08 17:30:38,903 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4227d4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:30:38, skipping insertion in model container [2024-11-08 17:30:38,904 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:30:38" (1/1) ... [2024-11-08 17:30:39,008 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:30:39,650 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:30:39,711 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:30:39,718 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:30:39,722 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:30:39,742 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:30:39,770 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:30:39,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:30:39,795 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:30:39,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:30:39,973 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:30:39,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:30:39 WrapperNode [2024-11-08 17:30:39,974 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:30:39,976 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:30:39,977 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:30:39,977 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:30:39,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:30:39" (1/1) ... [2024-11-08 17:30:40,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:30:39" (1/1) ... [2024-11-08 17:30:40,091 INFO L138 Inliner]: procedures = 176, calls = 170, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 781 [2024-11-08 17:30:40,092 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:30:40,093 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:30:40,093 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:30:40,093 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:30:40,115 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:30:39" (1/1) ... [2024-11-08 17:30:40,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:30:39" (1/1) ... [2024-11-08 17:30:40,139 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:30:39" (1/1) ... [2024-11-08 17:30:40,208 INFO L175 MemorySlicer]: Split 158 memory accesses to 2 slices as follows [2, 156]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 42 writes are split as follows [0, 42]. [2024-11-08 17:30:40,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:30:39" (1/1) ... [2024-11-08 17:30:40,209 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:30:39" (1/1) ... [2024-11-08 17:30:40,255 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:30:39" (1/1) ... [2024-11-08 17:30:40,274 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:30:39" (1/1) ... [2024-11-08 17:30:40,282 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:30:39" (1/1) ... [2024-11-08 17:30:40,289 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:30:39" (1/1) ... [2024-11-08 17:30:40,305 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:30:40,306 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:30:40,310 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:30:40,310 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:30:40,311 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:30:39" (1/1) ... [2024-11-08 17:30:40,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:30:40,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:30:40,358 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:30:40,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:30:40,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 17:30:40,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 17:30:40,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 17:30:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 17:30:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-08 17:30:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-08 17:30:40,406 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-08 17:30:40,407 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-08 17:30:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 17:30:40,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:30:40,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 17:30:40,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 17:30:40,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 17:30:40,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 17:30:40,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:30:40,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:30:40,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 17:30:40,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:30:40,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:30:40,693 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:30:40,696 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:30:42,284 INFO L? ?]: Removed 201 outVars from TransFormulas that were not future-live. [2024-11-08 17:30:42,285 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:30:42,306 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:30:42,306 INFO L316 CfgBuilder]: Removed 27 assume(true) statements. [2024-11-08 17:30:42,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:30:42 BoogieIcfgContainer [2024-11-08 17:30:42,307 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:30:42,311 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:30:42,311 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:30:42,316 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:30:42,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:30:38" (1/3) ... [2024-11-08 17:30:42,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f098d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:30:42, skipping insertion in model container [2024-11-08 17:30:42,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:30:39" (2/3) ... [2024-11-08 17:30:42,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f098d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:30:42, skipping insertion in model container [2024-11-08 17:30:42,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:30:42" (3/3) ... [2024-11-08 17:30:42,321 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_nondet_test1-1.i [2024-11-08 17:30:42,347 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:30:42,347 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 17:30:42,427 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:30:42,435 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@45aabc32, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:30:42,435 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 17:30:42,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 217 states, 210 states have (on average 1.6) internal successors, (336), 212 states have internal predecessors, (336), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:30:42,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 17:30:42,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:30:42,451 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:30:42,452 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 17:30:42,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:30:42,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1349851814, now seen corresponding path program 1 times [2024-11-08 17:30:42,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:30:42,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167535935] [2024-11-08 17:30:42,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:30:42,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:30:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:30:42,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:30:42,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:30:42,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167535935] [2024-11-08 17:30:42,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167535935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:30:42,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:30:42,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:30:42,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736462228] [2024-11-08 17:30:42,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:30:42,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:30:42,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:30:42,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:30:42,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:30:42,877 INFO L87 Difference]: Start difference. First operand has 217 states, 210 states have (on average 1.6) internal successors, (336), 212 states have internal predecessors, (336), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-11-08 17:30:43,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:30:43,055 INFO L93 Difference]: Finished difference Result 413 states and 594 transitions. [2024-11-08 17:30:43,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:30:43,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2024-11-08 17:30:43,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:30:43,086 INFO L225 Difference]: With dead ends: 413 [2024-11-08 17:30:43,087 INFO L226 Difference]: Without dead ends: 411 [2024-11-08 17:30:43,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:30:43,101 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 279 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:30:43,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 604 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:30:43,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-11-08 17:30:43,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 216. [2024-11-08 17:30:43,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 210 states have (on average 1.438095238095238) internal successors, (302), 211 states have internal predecessors, (302), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:30:43,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 308 transitions. [2024-11-08 17:30:43,212 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 308 transitions. Word has length 9 [2024-11-08 17:30:43,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:30:43,213 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 308 transitions. [2024-11-08 17:30:43,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-11-08 17:30:43,214 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 308 transitions. [2024-11-08 17:30:43,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 17:30:43,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:30:43,229 INFO L215 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, 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] [2024-11-08 17:30:43,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:30:43,229 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 17:30:43,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:30:43,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1886412820, now seen corresponding path program 1 times [2024-11-08 17:30:43,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:30:43,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262864502] [2024-11-08 17:30:43,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:30:43,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:30:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:30:43,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:30:43,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:30:43,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262864502] [2024-11-08 17:30:43,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262864502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:30:43,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:30:43,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:30:43,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442995110] [2024-11-08 17:30:43,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:30:43,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:30:43,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:30:43,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:30:43,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:30:43,946 INFO L87 Difference]: Start difference. First operand 216 states and 308 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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) [2024-11-08 17:30:44,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:30:44,163 INFO L93 Difference]: Finished difference Result 219 states and 304 transitions. [2024-11-08 17:30:44,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:30:44,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 85 [2024-11-08 17:30:44,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:30:44,171 INFO L225 Difference]: With dead ends: 219 [2024-11-08 17:30:44,172 INFO L226 Difference]: Without dead ends: 219 [2024-11-08 17:30:44,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:30:44,174 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 107 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:30:44,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 735 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:30:44,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-08 17:30:44,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 216. [2024-11-08 17:30:44,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 210 states have (on average 1.4047619047619047) internal successors, (295), 211 states have internal predecessors, (295), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:30:44,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 301 transitions. [2024-11-08 17:30:44,208 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 301 transitions. Word has length 85 [2024-11-08 17:30:44,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:30:44,209 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 301 transitions. [2024-11-08 17:30:44,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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) [2024-11-08 17:30:44,213 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 301 transitions. [2024-11-08 17:30:44,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 17:30:44,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:30:44,219 INFO L215 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, 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] [2024-11-08 17:30:44,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:30:44,220 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 17:30:44,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:30:44,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1887413600, now seen corresponding path program 1 times [2024-11-08 17:30:44,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:30:44,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380141714] [2024-11-08 17:30:44,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:30:44,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:30:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:30:44,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:30:44,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:30:44,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380141714] [2024-11-08 17:30:44,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380141714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:30:44,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:30:44,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:30:44,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411083188] [2024-11-08 17:30:44,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:30:44,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:30:44,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:30:44,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:30:44,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:30:44,727 INFO L87 Difference]: Start difference. First operand 216 states and 301 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2024-11-08 17:30:44,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:30:44,802 INFO L93 Difference]: Finished difference Result 346 states and 491 transitions. [2024-11-08 17:30:44,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:30:44,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 85 [2024-11-08 17:30:44,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:30:44,808 INFO L225 Difference]: With dead ends: 346 [2024-11-08 17:30:44,809 INFO L226 Difference]: Without dead ends: 346 [2024-11-08 17:30:44,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:30:44,811 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 136 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:30:44,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 588 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:30:44,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-08 17:30:44,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2024-11-08 17:30:44,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 340 states have (on average 1.4264705882352942) internal successors, (485), 341 states have internal predecessors, (485), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:30:44,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 491 transitions. [2024-11-08 17:30:44,832 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 491 transitions. Word has length 85 [2024-11-08 17:30:44,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:30:44,833 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 491 transitions. [2024-11-08 17:30:44,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2024-11-08 17:30:44,833 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 491 transitions. [2024-11-08 17:30:44,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 17:30:44,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:30:44,837 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:30:44,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:30:44,837 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 17:30:44,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:30:44,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1268663478, now seen corresponding path program 1 times [2024-11-08 17:30:44,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:30:44,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499917428] [2024-11-08 17:30:44,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:30:44,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:30:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:30:45,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:30:45,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:30:45,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:30:45,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:30:45,359 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 17:30:45,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:30:45,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499917428] [2024-11-08 17:30:45,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499917428] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:30:45,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779536266] [2024-11-08 17:30:45,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:30:45,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:30:45,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:30:45,368 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:30:45,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:30:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:30:45,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 17:30:45,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:30:46,203 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 17:30:46,204 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:30:46,473 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 17:30:46,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779536266] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:30:46,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:30:46,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2024-11-08 17:30:46,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656200351] [2024-11-08 17:30:46,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:30:46,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:30:46,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:30:46,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:30:46,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:30:46,479 INFO L87 Difference]: Start difference. First operand 346 states and 491 transitions. Second operand has 8 states, 8 states have (on average 32.375) internal successors, (259), 7 states have internal predecessors, (259), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 17:30:47,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:30:47,019 INFO L93 Difference]: Finished difference Result 807 states and 1148 transitions. [2024-11-08 17:30:47,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:30:47,021 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 32.375) internal successors, (259), 7 states have internal predecessors, (259), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 100 [2024-11-08 17:30:47,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:30:47,030 INFO L225 Difference]: With dead ends: 807 [2024-11-08 17:30:47,031 INFO L226 Difference]: Without dead ends: 807 [2024-11-08 17:30:47,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:30:47,033 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 1120 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 1692 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 17:30:47,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 1692 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 17:30:47,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2024-11-08 17:30:47,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 804. [2024-11-08 17:30:47,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 789 states have (on average 1.4055766793409379) internal successors, (1109), 790 states have internal predecessors, (1109), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 17:30:47,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1133 transitions. [2024-11-08 17:30:47,076 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1133 transitions. Word has length 100 [2024-11-08 17:30:47,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:30:47,077 INFO L471 AbstractCegarLoop]: Abstraction has 804 states and 1133 transitions. [2024-11-08 17:30:47,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 32.375) internal successors, (259), 7 states have internal predecessors, (259), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 17:30:47,078 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1133 transitions. [2024-11-08 17:30:47,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-11-08 17:30:47,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:30:47,089 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:30:47,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:30:47,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:30:47,290 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 17:30:47,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:30:47,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1915696184, now seen corresponding path program 1 times [2024-11-08 17:30:47,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:30:47,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203712623] [2024-11-08 17:30:47,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:30:47,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:30:47,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:30:48,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:30:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:30:48,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:30:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:30:48,942 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 7 proven. 329 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-08 17:30:48,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:30:48,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203712623] [2024-11-08 17:30:48,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203712623] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:30:48,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544318545] [2024-11-08 17:30:48,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:30:48,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:30:48,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:30:48,946 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:30:48,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:30:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:30:49,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 1664 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 17:30:49,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:30:50,499 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 0 proven. 454 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 17:30:50,499 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:30:51,146 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 0 proven. 454 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 17:30:51,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544318545] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:30:51,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:30:51,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2024-11-08 17:30:51,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389146095] [2024-11-08 17:30:51,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:30:51,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 17:30:51,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:30:51,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 17:30:51,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:30:51,151 INFO L87 Difference]: Start difference. First operand 804 states and 1133 transitions. Second operand has 17 states, 17 states have (on average 50.0) internal successors, (850), 16 states have internal predecessors, (850), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 17:30:53,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:30:53,705 INFO L93 Difference]: Finished difference Result 1910 states and 2716 transitions. [2024-11-08 17:30:53,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 17:30:53,706 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 50.0) internal successors, (850), 16 states have internal predecessors, (850), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 328 [2024-11-08 17:30:53,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:30:53,722 INFO L225 Difference]: With dead ends: 1910 [2024-11-08 17:30:53,723 INFO L226 Difference]: Without dead ends: 1910 [2024-11-08 17:30:53,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 658 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=316, Invalid=676, Unknown=0, NotChecked=0, Total=992 [2024-11-08 17:30:53,729 INFO L432 NwaCegarLoop]: 477 mSDtfsCounter, 12179 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12179 SdHoareTripleChecker+Valid, 3399 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:30:53,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12179 Valid, 3399 Invalid, 595 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [111 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 17:30:53,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1910 states. [2024-11-08 17:30:53,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1910 to 1907. [2024-11-08 17:30:53,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1907 states, 1892 states have (on average 1.4149048625792813) internal successors, (2677), 1893 states have internal predecessors, (2677), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 17:30:53,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 2701 transitions. [2024-11-08 17:30:53,790 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 2701 transitions. Word has length 328 [2024-11-08 17:30:53,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:30:53,791 INFO L471 AbstractCegarLoop]: Abstraction has 1907 states and 2701 transitions. [2024-11-08 17:30:53,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 50.0) internal successors, (850), 16 states have internal predecessors, (850), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 17:30:53,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 2701 transitions. [2024-11-08 17:30:53,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 787 [2024-11-08 17:30:53,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:30:53,822 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:30:53,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 17:30:54,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:30:54,027 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 17:30:54,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:30:54,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1846178745, now seen corresponding path program 1 times [2024-11-08 17:30:54,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:30:54,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600336256] [2024-11-08 17:30:54,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:30:54,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:36:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:36:41,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:36:41,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:36:41,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:36:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:36:41,375 INFO L134 CoverageAnalysis]: Checked inductivity of 3417 backedges. 505 proven. 3 refuted. 0 times theorem prover too weak. 2909 trivial. 0 not checked. [2024-11-08 17:36:41,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:36:41,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600336256] [2024-11-08 17:36:41,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600336256] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:36:41,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421587331] [2024-11-08 17:36:41,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:36:41,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:36:41,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:36:41,384 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:36:41,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:37:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:37:10,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 3892 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 17:37:11,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:37:11,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2024-11-08 17:37:11,933 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:37:11,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 55 [2024-11-08 17:37:12,384 INFO L134 CoverageAnalysis]: Checked inductivity of 3417 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 3119 trivial. 0 not checked. [2024-11-08 17:37:12,385 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:37:12,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421587331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:37:12,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:37:12,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-11-08 17:37:12,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782176900] [2024-11-08 17:37:12,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:37:12,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 17:37:12,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:37:12,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 17:37:12,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-08 17:37:12,389 INFO L87 Difference]: Start difference. First operand 1907 states and 2701 transitions. Second operand has 11 states, 11 states have (on average 11.909090909090908) internal successors, (131), 11 states have internal predecessors, (131), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 17:37:15,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:37:15,767 INFO L93 Difference]: Finished difference Result 1959 states and 2768 transitions. [2024-11-08 17:37:15,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 17:37:15,768 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.909090909090908) internal successors, (131), 11 states have internal predecessors, (131), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 786 [2024-11-08 17:37:15,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:37:15,777 INFO L225 Difference]: With dead ends: 1959 [2024-11-08 17:37:15,777 INFO L226 Difference]: Without dead ends: 1959 [2024-11-08 17:37:15,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 800 GetRequests, 780 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2024-11-08 17:37:15,779 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 567 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:37:15,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 1873 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 17:37:15,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1959 states. [2024-11-08 17:37:15,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1959 to 1938. [2024-11-08 17:37:15,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1938 states, 1923 states have (on average 1.4123764950598023) internal successors, (2716), 1924 states have internal predecessors, (2716), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 17:37:15,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1938 states to 1938 states and 2740 transitions. [2024-11-08 17:37:15,833 INFO L78 Accepts]: Start accepts. Automaton has 1938 states and 2740 transitions. Word has length 786 [2024-11-08 17:37:15,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:37:15,833 INFO L471 AbstractCegarLoop]: Abstraction has 1938 states and 2740 transitions. [2024-11-08 17:37:15,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.909090909090908) internal successors, (131), 11 states have internal predecessors, (131), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 17:37:15,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1938 states and 2740 transitions. [2024-11-08 17:37:15,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 787 [2024-11-08 17:37:15,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:37:15,868 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:37:15,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 17:37:16,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:37:16,069 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 17:37:16,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:37:16,069 INFO L85 PathProgramCache]: Analyzing trace with hash 2050393801, now seen corresponding path program 1 times [2024-11-08 17:37:16,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:37:16,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046847575] [2024-11-08 17:37:16,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:37:16,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:37:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:37:17,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:37:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:37:17,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:37:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:37:17,579 INFO L134 CoverageAnalysis]: Checked inductivity of 3417 backedges. 235 proven. 0 refuted. 0 times theorem prover too weak. 3182 trivial. 0 not checked. [2024-11-08 17:37:17,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:37:17,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046847575] [2024-11-08 17:37:17,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046847575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:37:17,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:37:17,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:37:17,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76188006] [2024-11-08 17:37:17,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:37:17,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:37:17,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:37:17,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:37:17,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:37:17,583 INFO L87 Difference]: Start difference. First operand 1938 states and 2740 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 17:37:17,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:37:17,880 INFO L93 Difference]: Finished difference Result 2005 states and 2817 transitions. [2024-11-08 17:37:17,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:37:17,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 786 [2024-11-08 17:37:17,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:37:17,889 INFO L225 Difference]: With dead ends: 2005 [2024-11-08 17:37:17,889 INFO L226 Difference]: Without dead ends: 2005 [2024-11-08 17:37:17,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:37:17,891 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 5 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:37:17,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 807 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 17:37:17,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2024-11-08 17:37:17,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 2000. [2024-11-08 17:37:17,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2000 states, 1985 states have (on average 1.3984886649874055) internal successors, (2776), 1986 states have internal predecessors, (2776), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 17:37:17,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2000 states to 2000 states and 2800 transitions. [2024-11-08 17:37:17,944 INFO L78 Accepts]: Start accepts. Automaton has 2000 states and 2800 transitions. Word has length 786 [2024-11-08 17:37:17,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:37:17,944 INFO L471 AbstractCegarLoop]: Abstraction has 2000 states and 2800 transitions. [2024-11-08 17:37:17,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 17:37:17,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2000 states and 2800 transitions. [2024-11-08 17:37:17,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 787 [2024-11-08 17:37:17,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:37:17,955 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 2, 2, 2, 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] [2024-11-08 17:37:17,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:37:17,956 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 17:37:17,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:37:17,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1445128395, now seen corresponding path program 1 times [2024-11-08 17:37:17,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:37:17,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296389058] [2024-11-08 17:37:17,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:37:17,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:37:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:37:19,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:37:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:37:19,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:37:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:37:19,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3417 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 3200 trivial. 0 not checked. [2024-11-08 17:37:19,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:37:19,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296389058] [2024-11-08 17:37:19,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296389058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:37:19,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:37:19,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:37:19,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067081223] [2024-11-08 17:37:19,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:37:19,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:37:19,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:37:19,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:37:19,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:37:19,416 INFO L87 Difference]: Start difference. First operand 2000 states and 2800 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 17:37:19,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:37:19,747 INFO L93 Difference]: Finished difference Result 1420 states and 1895 transitions. [2024-11-08 17:37:19,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:37:19,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 786 [2024-11-08 17:37:19,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:37:19,753 INFO L225 Difference]: With dead ends: 1420 [2024-11-08 17:37:19,753 INFO L226 Difference]: Without dead ends: 1420 [2024-11-08 17:37:19,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:37:19,755 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 12 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:37:19,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 735 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 17:37:19,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2024-11-08 17:37:19,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1417. [2024-11-08 17:37:19,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1417 states, 1402 states have (on average 1.3238231098430813) internal successors, (1856), 1403 states have internal predecessors, (1856), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 17:37:19,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 1880 transitions. [2024-11-08 17:37:19,793 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 1880 transitions. Word has length 786 [2024-11-08 17:37:19,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:37:19,794 INFO L471 AbstractCegarLoop]: Abstraction has 1417 states and 1880 transitions. [2024-11-08 17:37:19,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 17:37:19,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 1880 transitions. [2024-11-08 17:37:19,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2024-11-08 17:37:19,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:37:19,804 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 2, 2, 2, 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] [2024-11-08 17:37:19,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:37:19,804 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 17:37:19,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:37:19,809 INFO L85 PathProgramCache]: Analyzing trace with hash -529251988, now seen corresponding path program 1 times [2024-11-08 17:37:19,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:37:19,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210102836] [2024-11-08 17:37:19,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:37:19,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:07,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 17:40:07,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:07,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 17:40:07,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:07,729 INFO L134 CoverageAnalysis]: Checked inductivity of 3417 backedges. 505 proven. 3 refuted. 0 times theorem prover too weak. 2909 trivial. 0 not checked. [2024-11-08 17:40:07,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:07,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210102836] [2024-11-08 17:40:07,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210102836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:40:07,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394094712] [2024-11-08 17:40:07,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:07,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:40:07,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:40:07,733 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:40:07,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 17:40:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:29,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 3893 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 17:40:29,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:40:29,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2024-11-08 17:40:30,647 INFO L134 CoverageAnalysis]: Checked inductivity of 3417 backedges. 899 proven. 33 refuted. 0 times theorem prover too weak. 2485 trivial. 0 not checked. [2024-11-08 17:40:30,647 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:40:34,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394094712] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:40:34,048 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:40:34,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 12] total 15 [2024-11-08 17:40:34,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015266457] [2024-11-08 17:40:34,049 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:40:34,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 17:40:34,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:34,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 17:40:34,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2024-11-08 17:40:34,053 INFO L87 Difference]: Start difference. First operand 1417 states and 1880 transitions. Second operand has 15 states, 15 states have (on average 18.266666666666666) internal successors, (274), 14 states have internal predecessors, (274), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 17:40:37,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:37,609 INFO L93 Difference]: Finished difference Result 1420 states and 1892 transitions. [2024-11-08 17:40:37,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:40:37,610 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 18.266666666666666) internal successors, (274), 14 states have internal predecessors, (274), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 787 [2024-11-08 17:40:37,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:37,614 INFO L225 Difference]: With dead ends: 1420 [2024-11-08 17:40:37,615 INFO L226 Difference]: Without dead ends: 1420 [2024-11-08 17:40:37,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1520 GetRequests, 1487 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=218, Invalid=972, Unknown=0, NotChecked=0, Total=1190 [2024-11-08 17:40:37,616 INFO L432 NwaCegarLoop]: 414 mSDtfsCounter, 390 mSDsluCounter, 3139 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 3553 SdHoareTripleChecker+Invalid, 1656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:37,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 3553 Invalid, 1656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1649 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-08 17:40:37,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2024-11-08 17:40:37,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1420. [2024-11-08 17:40:37,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1404 states have (on average 1.3233618233618234) internal successors, (1858), 1406 states have internal predecessors, (1858), 12 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (22), 12 states have call predecessors, (22), 12 states have call successors, (22) [2024-11-08 17:40:37,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 1892 transitions. [2024-11-08 17:40:37,647 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 1892 transitions. Word has length 787 [2024-11-08 17:40:37,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:37,648 INFO L471 AbstractCegarLoop]: Abstraction has 1420 states and 1892 transitions. [2024-11-08 17:40:37,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 18.266666666666666) internal successors, (274), 14 states have internal predecessors, (274), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 17:40:37,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 1892 transitions. [2024-11-08 17:40:37,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-08 17:40:37,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:37,656 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:40:37,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 17:40:37,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:40:37,857 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 17:40:37,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:37,857 INFO L85 PathProgramCache]: Analyzing trace with hash -364970073, now seen corresponding path program 1 times [2024-11-08 17:40:37,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:37,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119748916] [2024-11-08 17:40:37,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:37,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:56,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 17:42:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:56,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 17:42:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:56,320 INFO L134 CoverageAnalysis]: Checked inductivity of 3423 backedges. 506 proven. 7 refuted. 0 times theorem prover too weak. 2910 trivial. 0 not checked. [2024-11-08 17:42:56,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:56,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119748916] [2024-11-08 17:42:56,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119748916] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:42:56,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266880263] [2024-11-08 17:42:56,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:56,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:42:56,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:42:56,332 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:42:56,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 17:43:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:08,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 3924 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 17:43:08,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:43:08,253 INFO L134 CoverageAnalysis]: Checked inductivity of 3423 backedges. 924 proven. 0 refuted. 0 times theorem prover too weak. 2499 trivial. 0 not checked. [2024-11-08 17:43:08,253 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:43:08,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266880263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:43:08,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:43:08,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-08 17:43:08,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19190841] [2024-11-08 17:43:08,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:43:08,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:43:08,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:43:08,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:43:08,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:43:08,257 INFO L87 Difference]: Start difference. First operand 1420 states and 1892 transitions. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 17:43:08,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:43:08,389 INFO L93 Difference]: Finished difference Result 1420 states and 1882 transitions. [2024-11-08 17:43:08,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:43:08,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 790 [2024-11-08 17:43:08,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:43:08,394 INFO L225 Difference]: With dead ends: 1420 [2024-11-08 17:43:08,395 INFO L226 Difference]: Without dead ends: 1420 [2024-11-08 17:43:08,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 797 GetRequests, 791 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:43:08,396 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 13 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:43:08,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 493 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:43:08,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2024-11-08 17:43:08,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1420. [2024-11-08 17:43:08,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1404 states have (on average 1.3162393162393162) internal successors, (1848), 1406 states have internal predecessors, (1848), 12 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (22), 12 states have call predecessors, (22), 12 states have call successors, (22) [2024-11-08 17:43:08,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 1882 transitions. [2024-11-08 17:43:08,427 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 1882 transitions. Word has length 790 [2024-11-08 17:43:08,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:43:08,427 INFO L471 AbstractCegarLoop]: Abstraction has 1420 states and 1882 transitions. [2024-11-08 17:43:08,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 17:43:08,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 1882 transitions. [2024-11-08 17:43:08,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2024-11-08 17:43:08,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:43:08,437 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:43:08,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 17:43:08,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b50d5e6-c3a9-4518-90f4-c573acc482fb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 17:43:08,638 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 17:43:08,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:43:08,638 INFO L85 PathProgramCache]: Analyzing trace with hash 271516421, now seen corresponding path program 1 times [2024-11-08 17:43:08,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:43:08,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778671814] [2024-11-08 17:43:08,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:43:08,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:43:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:10,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 17:43:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:10,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 17:43:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:10,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3424 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 3106 trivial. 0 not checked. [2024-11-08 17:43:10,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:43:10,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778671814] [2024-11-08 17:43:10,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778671814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:43:10,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:43:10,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:43:10,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263783932] [2024-11-08 17:43:10,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:43:10,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:43:10,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:43:10,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:43:10,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:43:10,784 INFO L87 Difference]: Start difference. First operand 1420 states and 1882 transitions. Second operand has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 6 states have internal predecessors, (139), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 17:43:11,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:43:11,225 INFO L93 Difference]: Finished difference Result 1450 states and 1912 transitions. [2024-11-08 17:43:11,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:43:11,226 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 6 states have internal predecessors, (139), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 792 [2024-11-08 17:43:11,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:43:11,230 INFO L225 Difference]: With dead ends: 1450 [2024-11-08 17:43:11,231 INFO L226 Difference]: Without dead ends: 1450 [2024-11-08 17:43:11,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:43:11,232 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 7 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 17:43:11,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 888 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 17:43:11,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2024-11-08 17:43:11,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1450. [2024-11-08 17:43:11,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1434 states have (on average 1.3096234309623431) internal successors, (1878), 1436 states have internal predecessors, (1878), 12 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (22), 12 states have call predecessors, (22), 12 states have call successors, (22) [2024-11-08 17:43:11,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1912 transitions. [2024-11-08 17:43:11,261 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1912 transitions. Word has length 792 [2024-11-08 17:43:11,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:43:11,262 INFO L471 AbstractCegarLoop]: Abstraction has 1450 states and 1912 transitions. [2024-11-08 17:43:11,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 6 states have internal predecessors, (139), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 17:43:11,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1912 transitions. [2024-11-08 17:43:11,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2024-11-08 17:43:11,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:43:11,270 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:43:11,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:43:11,271 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 17:43:11,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:43:11,272 INFO L85 PathProgramCache]: Analyzing trace with hash -439896139, now seen corresponding path program 1 times [2024-11-08 17:43:11,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:43:11,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49943981] [2024-11-08 17:43:11,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:43:11,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:43:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:13,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 17:43:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:13,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:43:13,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:13,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3425 backedges. 337 proven. 0 refuted. 0 times theorem prover too weak. 3088 trivial. 0 not checked. [2024-11-08 17:43:13,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:43:13,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49943981] [2024-11-08 17:43:13,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49943981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:43:13,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:43:13,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:43:13,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229507365] [2024-11-08 17:43:13,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:43:13,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:43:13,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:43:13,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:43:13,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:43:13,154 INFO L87 Difference]: Start difference. First operand 1450 states and 1912 transitions. Second operand has 8 states, 8 states have (on average 18.0) internal successors, (144), 7 states have internal predecessors, (144), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 17:43:13,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:43:13,790 INFO L93 Difference]: Finished difference Result 1500 states and 1972 transitions. [2024-11-08 17:43:13,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:43:13,791 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.0) internal successors, (144), 7 states have internal predecessors, (144), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 794 [2024-11-08 17:43:13,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:43:13,796 INFO L225 Difference]: With dead ends: 1500 [2024-11-08 17:43:13,796 INFO L226 Difference]: Without dead ends: 1500 [2024-11-08 17:43:13,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:43:13,797 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 11 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 17:43:13,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 998 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 17:43:13,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2024-11-08 17:43:13,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1490. [2024-11-08 17:43:13,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1490 states, 1474 states have (on average 1.3080054274084125) internal successors, (1928), 1476 states have internal predecessors, (1928), 12 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (22), 12 states have call predecessors, (22), 12 states have call successors, (22) [2024-11-08 17:43:13,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 1962 transitions. [2024-11-08 17:43:13,832 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 1962 transitions. Word has length 794 [2024-11-08 17:43:13,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:43:13,832 INFO L471 AbstractCegarLoop]: Abstraction has 1490 states and 1962 transitions. [2024-11-08 17:43:13,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.0) internal successors, (144), 7 states have internal predecessors, (144), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 17:43:13,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 1962 transitions. [2024-11-08 17:43:13,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2024-11-08 17:43:13,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:43:13,907 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:43:13,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:43:13,908 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 17:43:13,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:43:13,910 INFO L85 PathProgramCache]: Analyzing trace with hash -704722195, now seen corresponding path program 1 times [2024-11-08 17:43:13,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:43:13,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885926980] [2024-11-08 17:43:13,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:43:13,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms