./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 4fc63b2a 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_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU --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-4fc63b2 [2024-10-31 22:19:33,642 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:19:33,738 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-10-31 22:19:33,746 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:19:33,747 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:19:33,782 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:19:33,783 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:19:33,784 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:19:33,785 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:19:33,786 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:19:33,787 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:19:33,787 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:19:33,788 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:19:33,791 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:19:33,791 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:19:33,791 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:19:33,792 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:19:33,792 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:19:33,793 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:19:33,793 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:19:33,793 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:19:33,798 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:19:33,798 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:19:33,799 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:19:33,800 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:19:33,800 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:19:33,800 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:19:33,801 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:19:33,801 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:19:33,802 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:19:33,802 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:19:33,802 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:19:33,803 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:19:33,804 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:19:33,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:19:33,805 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:19:33,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:19:33,806 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:19:33,806 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:19:33,806 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:19:33,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:19:33,807 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:19:33,807 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:19:33,808 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:19:33,808 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:19:33,808 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_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdc85b042221b41aa26e62667e19ce1f6c246be9a2cb4f81fe8b15c8429db160 [2024-10-31 22:19:34,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:19:34,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:19:34,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:19:34,168 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:19:34,168 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:19:34,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test1-1.i Unable to find full path for "g++" [2024-10-31 22:19:36,220 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:19:36,523 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:19:36,524 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test1-1.i [2024-10-31 22:19:36,550 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/data/1376f8f93/2b2f8cc35e714070b3df20dd3661daba/FLAG1ae06f3bf [2024-10-31 22:19:36,795 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/data/1376f8f93/2b2f8cc35e714070b3df20dd3661daba [2024-10-31 22:19:36,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:19:36,801 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:19:36,802 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:19:36,802 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:19:36,809 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:19:36,810 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:19:36" (1/1) ... [2024-10-31 22:19:36,811 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e65e4fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:36, skipping insertion in model container [2024-10-31 22:19:36,812 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:19:36" (1/1) ... [2024-10-31 22:19:36,881 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:19:37,418 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:19:37,474 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:19:37,482 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:19:37,488 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:19:37,505 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:19:37,524 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:19:37,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:19:37,548 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:19:37,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:19:37,716 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:19:37,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:37 WrapperNode [2024-10-31 22:19:37,717 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:19:37,718 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:19:37,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:19:37,719 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:19:37,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:37" (1/1) ... [2024-10-31 22:19:37,760 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:37" (1/1) ... [2024-10-31 22:19:37,827 INFO L138 Inliner]: procedures = 176, calls = 170, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 799 [2024-10-31 22:19:37,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:19:37,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:19:37,828 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:19:37,829 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:19:37,843 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:37" (1/1) ... [2024-10-31 22:19:37,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:37" (1/1) ... [2024-10-31 22:19:37,861 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:37" (1/1) ... [2024-10-31 22:19:37,942 INFO L175 MemorySlicer]: Split 158 memory accesses to 2 slices as follows [156, 2]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2]. The 42 writes are split as follows [42, 0]. [2024-10-31 22:19:37,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:37" (1/1) ... [2024-10-31 22:19:37,943 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:37" (1/1) ... [2024-10-31 22:19:37,986 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:37" (1/1) ... [2024-10-31 22:19:37,995 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:37" (1/1) ... [2024-10-31 22:19:37,998 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:37" (1/1) ... [2024-10-31 22:19:38,002 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:37" (1/1) ... [2024-10-31 22:19:38,008 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:19:38,009 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:19:38,009 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:19:38,010 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:19:38,011 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:37" (1/1) ... [2024-10-31 22:19:38,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:19:38,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:38,049 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:38,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:19:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:19:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:19:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:19:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:19:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-31 22:19:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-31 22:19:38,087 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-31 22:19:38,087 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-31 22:19:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:19:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:19:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:19:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:19:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 22:19:38,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-31 22:19:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:19:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:19:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:19:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:19:38,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:19:38,345 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:19:38,348 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:19:39,681 INFO L? ?]: Removed 196 outVars from TransFormulas that were not future-live. [2024-10-31 22:19:39,682 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:19:39,704 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:19:39,705 INFO L316 CfgBuilder]: Removed 31 assume(true) statements. [2024-10-31 22:19:39,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:19:39 BoogieIcfgContainer [2024-10-31 22:19:39,705 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:19:39,708 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:19:39,708 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:19:39,712 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:19:39,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:19:36" (1/3) ... [2024-10-31 22:19:39,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cdf51fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:19:39, skipping insertion in model container [2024-10-31 22:19:39,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:37" (2/3) ... [2024-10-31 22:19:39,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cdf51fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:19:39, skipping insertion in model container [2024-10-31 22:19:39,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:19:39" (3/3) ... [2024-10-31 22:19:39,716 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_nondet_test1-1.i [2024-10-31 22:19:39,737 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:19:39,738 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:19:39,793 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:19:39,800 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;@7c816fbd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:19:39,801 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-31 22:19:39,806 INFO L276 IsEmpty]: Start isEmpty. Operand has 214 states, 207 states have (on average 1.608695652173913) internal successors, (333), 209 states have internal predecessors, (333), 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) [2024-10-31 22:19:39,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-31 22:19:39,814 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:19:39,814 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:39,815 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-31 22:19:39,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:39,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1685037040, now seen corresponding path program 1 times [2024-10-31 22:19:39,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:39,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610136127] [2024-10-31 22:19:39,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:39,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:39,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:39,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:39,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610136127] [2024-10-31 22:19:39,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610136127] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:39,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:39,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:19:39,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637354739] [2024-10-31 22:19:39,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:39,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:19:39,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:40,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:19:40,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:19:40,040 INFO L87 Difference]: Start difference. First operand has 214 states, 207 states have (on average 1.608695652173913) internal successors, (333), 209 states have internal predecessors, (333), 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 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2024-10-31 22:19:40,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:19:40,093 INFO L93 Difference]: Finished difference Result 213 states and 301 transitions. [2024-10-31 22:19:40,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:19:40,099 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 [2024-10-31 22:19:40,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:19:40,114 INFO L225 Difference]: With dead ends: 213 [2024-10-31 22:19:40,114 INFO L226 Difference]: Without dead ends: 211 [2024-10-31 22:19:40,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:19:40,122 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:19:40,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:19:40,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-10-31 22:19:40,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2024-10-31 22:19:40,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 205 states have (on average 1.4292682926829268) internal successors, (293), 206 states have internal predecessors, (293), 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) [2024-10-31 22:19:40,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 299 transitions. [2024-10-31 22:19:40,198 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 299 transitions. Word has length 9 [2024-10-31 22:19:40,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:19:40,199 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 299 transitions. [2024-10-31 22:19:40,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2024-10-31 22:19:40,201 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 299 transitions. [2024-10-31 22:19:40,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-31 22:19:40,201 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:19:40,202 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:40,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:19:40,203 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-31 22:19:40,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:40,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1170754709, now seen corresponding path program 1 times [2024-10-31 22:19:40,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:40,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833611805] [2024-10-31 22:19:40,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:40,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:40,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:40,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:40,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833611805] [2024-10-31 22:19:40,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833611805] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:40,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:40,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:19:40,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663683779] [2024-10-31 22:19:40,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:40,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:19:40,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:40,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:19:40,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:19:40,312 INFO L87 Difference]: Start difference. First operand 211 states and 299 transitions. 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) [2024-10-31 22:19:40,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:19:40,402 INFO L93 Difference]: Finished difference Result 405 states and 580 transitions. [2024-10-31 22:19:40,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:19:40,408 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 [2024-10-31 22:19:40,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:19:40,414 INFO L225 Difference]: With dead ends: 405 [2024-10-31 22:19:40,414 INFO L226 Difference]: Without dead ends: 405 [2024-10-31 22:19:40,415 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 [2024-10-31 22:19:40,416 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 274 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:19:40,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 590 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:19:40,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-10-31 22:19:40,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 212. [2024-10-31 22:19:40,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 206 states have (on average 1.4271844660194175) internal successors, (294), 207 states have internal predecessors, (294), 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) [2024-10-31 22:19:40,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 300 transitions. [2024-10-31 22:19:40,453 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 300 transitions. Word has length 9 [2024-10-31 22:19:40,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:19:40,454 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 300 transitions. [2024-10-31 22:19:40,454 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) [2024-10-31 22:19:40,454 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 300 transitions. [2024-10-31 22:19:40,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-31 22:19:40,457 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:19:40,457 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] [2024-10-31 22:19:40,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:19:40,457 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-31 22:19:40,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:40,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1007727045, now seen corresponding path program 1 times [2024-10-31 22:19:40,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:40,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970627759] [2024-10-31 22:19:40,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:40,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:41,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:41,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:41,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970627759] [2024-10-31 22:19:41,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970627759] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:41,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:41,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:19:41,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381676970] [2024-10-31 22:19:41,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:41,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:19:41,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:41,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:19:41,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:19:41,038 INFO L87 Difference]: Start difference. First operand 212 states and 300 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2024-10-31 22:19:41,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:19:41,170 INFO L93 Difference]: Finished difference Result 215 states and 296 transitions. [2024-10-31 22:19:41,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:19:41,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 84 [2024-10-31 22:19:41,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:19:41,172 INFO L225 Difference]: With dead ends: 215 [2024-10-31 22:19:41,172 INFO L226 Difference]: Without dead ends: 215 [2024-10-31 22:19:41,173 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 [2024-10-31 22:19:41,174 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 105 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:19:41,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 720 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:19:41,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-10-31 22:19:41,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 212. [2024-10-31 22:19:41,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 206 states have (on average 1.3932038834951457) internal successors, (287), 207 states have internal predecessors, (287), 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) [2024-10-31 22:19:41,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 293 transitions. [2024-10-31 22:19:41,187 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 293 transitions. Word has length 84 [2024-10-31 22:19:41,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:19:41,191 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 293 transitions. [2024-10-31 22:19:41,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2024-10-31 22:19:41,192 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 293 transitions. [2024-10-31 22:19:41,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-31 22:19:41,197 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:19:41,197 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] [2024-10-31 22:19:41,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:19:41,198 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-31 22:19:41,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:41,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1528867921, now seen corresponding path program 1 times [2024-10-31 22:19:41,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:41,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246128652] [2024-10-31 22:19:41,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:41,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:41,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:41,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:41,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246128652] [2024-10-31 22:19:41,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246128652] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:41,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:41,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:19:41,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852560640] [2024-10-31 22:19:41,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:41,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:19:41,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:41,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:19:41,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:19:41,511 INFO L87 Difference]: Start difference. First operand 212 states and 293 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-10-31 22:19:41,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:19:41,585 INFO L93 Difference]: Finished difference Result 341 states and 481 transitions. [2024-10-31 22:19:41,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:19:41,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84 [2024-10-31 22:19:41,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:19:41,589 INFO L225 Difference]: With dead ends: 341 [2024-10-31 22:19:41,590 INFO L226 Difference]: Without dead ends: 341 [2024-10-31 22:19:41,590 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 [2024-10-31 22:19:41,591 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 134 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 574 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 [2024-10-31 22:19:41,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 574 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:19:41,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-10-31 22:19:41,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2024-10-31 22:19:41,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 335 states have (on average 1.4179104477611941) internal successors, (475), 336 states have internal predecessors, (475), 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) [2024-10-31 22:19:41,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 481 transitions. [2024-10-31 22:19:41,605 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 481 transitions. Word has length 84 [2024-10-31 22:19:41,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:19:41,606 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 481 transitions. [2024-10-31 22:19:41,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-10-31 22:19:41,606 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 481 transitions. [2024-10-31 22:19:41,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-31 22:19:41,608 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:19:41,609 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] [2024-10-31 22:19:41,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:19:41,609 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-31 22:19:41,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:41,610 INFO L85 PathProgramCache]: Analyzing trace with hash -406731394, now seen corresponding path program 1 times [2024-10-31 22:19:41,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:41,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714757220] [2024-10-31 22:19:41,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:41,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 22:19:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-31 22:19:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,076 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:19:42,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:42,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714757220] [2024-10-31 22:19:42,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714757220] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:19:42,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670294689] [2024-10-31 22:19:42,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:42,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:19:42,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:42,080 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:19:42,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:19:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:19:42,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:42,726 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:19:42,727 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:19:42,956 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:19:42,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670294689] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:19:42,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:19:42,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2024-10-31 22:19:42,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066226074] [2024-10-31 22:19:42,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:19:42,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:19:42,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:42,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:19:42,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:19:42,967 INFO L87 Difference]: Start difference. First operand 341 states and 481 transitions. Second operand has 8 states, 8 states have (on average 32.0) internal successors, (256), 7 states have internal predecessors, (256), 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) [2024-10-31 22:19:43,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:19:43,442 INFO L93 Difference]: Finished difference Result 795 states and 1127 transitions. [2024-10-31 22:19:43,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:19:43,443 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 32.0) internal successors, (256), 7 states have internal predecessors, (256), 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 99 [2024-10-31 22:19:43,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:19:43,448 INFO L225 Difference]: With dead ends: 795 [2024-10-31 22:19:43,448 INFO L226 Difference]: Without dead ends: 795 [2024-10-31 22:19:43,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:19:43,450 INFO L432 NwaCegarLoop]: 417 mSDtfsCounter, 1345 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 2046 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:19:43,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 2046 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:19:43,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2024-10-31 22:19:43,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 792. [2024-10-31 22:19:43,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 777 states have (on average 1.4002574002574002) internal successors, (1088), 778 states have internal predecessors, (1088), 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) [2024-10-31 22:19:43,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1112 transitions. [2024-10-31 22:19:43,483 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1112 transitions. Word has length 99 [2024-10-31 22:19:43,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:19:43,486 INFO L471 AbstractCegarLoop]: Abstraction has 792 states and 1112 transitions. [2024-10-31 22:19:43,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 32.0) internal successors, (256), 7 states have internal predecessors, (256), 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) [2024-10-31 22:19:43,488 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1112 transitions. [2024-10-31 22:19:43,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-10-31 22:19:43,505 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:19:43,505 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, 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] [2024-10-31 22:19:43,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:19:43,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:19:43,707 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-31 22:19:43,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:43,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1910561404, now seen corresponding path program 1 times [2024-10-31 22:19:43,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:43,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777104909] [2024-10-31 22:19:43,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:43,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:44,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 22:19:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:44,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-31 22:19:44,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:44,771 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 4 proven. 162 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-10-31 22:19:44,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:44,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777104909] [2024-10-31 22:19:44,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777104909] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:19:44,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008754686] [2024-10-31 22:19:44,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:44,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:19:44,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:44,775 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:19:44,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:19:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:45,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 1660 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:19:45,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:46,202 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 448 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:19:46,205 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:19:46,935 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 448 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:19:46,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008754686] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:19:46,935 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:19:46,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2024-10-31 22:19:46,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380728667] [2024-10-31 22:19:46,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:19:46,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-31 22:19:46,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:46,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-31 22:19:46,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:19:46,941 INFO L87 Difference]: Start difference. First operand 792 states and 1112 transitions. Second operand has 15 states, 15 states have (on average 51.06666666666667) internal successors, (766), 14 states have internal predecessors, (766), 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) [2024-10-31 22:19:48,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:19:48,909 INFO L93 Difference]: Finished difference Result 1880 states and 2665 transitions. [2024-10-31 22:19:48,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-31 22:19:48,910 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 51.06666666666667) internal successors, (766), 14 states have internal predecessors, (766), 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 324 [2024-10-31 22:19:48,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:19:48,918 INFO L225 Difference]: With dead ends: 1880 [2024-10-31 22:19:48,919 INFO L226 Difference]: Without dead ends: 1880 [2024-10-31 22:19:48,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 642 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=240, Invalid=462, Unknown=0, NotChecked=0, Total=702 [2024-10-31 22:19:48,920 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 7239 mSDsluCounter, 2999 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7239 SdHoareTripleChecker+Valid, 3560 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-31 22:19:48,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7239 Valid, 3560 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-31 22:19:48,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2024-10-31 22:19:48,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1876. [2024-10-31 22:19:48,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1876 states, 1861 states have (on average 1.4105319720580334) internal successors, (2625), 1862 states have internal predecessors, (2625), 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) [2024-10-31 22:19:48,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 2649 transitions. [2024-10-31 22:19:48,964 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 2649 transitions. Word has length 324 [2024-10-31 22:19:48,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:19:48,965 INFO L471 AbstractCegarLoop]: Abstraction has 1876 states and 2649 transitions. [2024-10-31 22:19:48,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 51.06666666666667) internal successors, (766), 14 states have internal predecessors, (766), 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) [2024-10-31 22:19:48,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 2649 transitions. [2024-10-31 22:19:48,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 777 [2024-10-31 22:19:48,989 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:19:48,989 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, 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] [2024-10-31 22:19:49,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:19:49,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bc6ac3-8e66-42ce-be84-591c65f4d949/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:19:49,194 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-31 22:19:49,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:49,194 INFO L85 PathProgramCache]: Analyzing trace with hash -406763366, now seen corresponding path program 1 times [2024-10-31 22:19:49,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:49,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112452387] [2024-10-31 22:19:49,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:49,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms