./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_734afc82-b265-4019-a999-5dffed03c160/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734afc82-b265-4019-a999-5dffed03c160/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_734afc82-b265-4019-a999-5dffed03c160/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734afc82-b265-4019-a999-5dffed03c160/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734afc82-b265-4019-a999-5dffed03c160/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734afc82-b265-4019-a999-5dffed03c160/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 501447f5c37550c3f5e8fdfcef22269dce5065ef789f4faf9fbe7fcfc263a044 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:10:58,309 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:10:58,380 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734afc82-b265-4019-a999-5dffed03c160/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:10:58,385 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:10:58,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:10:58,416 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:10:58,417 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:10:58,417 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:10:58,418 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:10:58,418 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:10:58,419 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:10:58,419 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:10:58,420 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:10:58,420 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:10:58,421 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:10:58,421 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:10:58,422 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:10:58,422 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:10:58,423 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:10:58,423 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:10:58,424 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:10:58,424 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:10:58,425 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:10:58,425 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:10:58,425 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:10:58,426 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:10:58,426 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:10:58,427 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:10:58,427 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:10:58,427 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:10:58,428 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:10:58,428 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:10:58,429 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:10:58,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:10:58,430 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:10:58,430 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:10:58,430 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:10:58,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:10:58,431 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:10:58,431 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:10:58,432 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:10:58,432 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:10:58,432 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_734afc82-b265-4019-a999-5dffed03c160/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734afc82-b265-4019-a999-5dffed03c160/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 501447f5c37550c3f5e8fdfcef22269dce5065ef789f4faf9fbe7fcfc263a044 [2024-10-31 22:10:58,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:10:58,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:10:58,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:10:58,776 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:10:58,777 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:10:58,779 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734afc82-b265-4019-a999-5dffed03c160/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i Unable to find full path for "g++" [2024-10-31 22:11:01,371 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:11:01,786 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:11:01,790 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734afc82-b265-4019-a999-5dffed03c160/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i [2024-10-31 22:11:01,828 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734afc82-b265-4019-a999-5dffed03c160/bin/uautomizer-verify-4GaUIPS5ZU/data/f79ff7494/e4d7fffc57b14910817d1582f0df3dd8/FLAG4029d99b0 [2024-10-31 22:11:01,841 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734afc82-b265-4019-a999-5dffed03c160/bin/uautomizer-verify-4GaUIPS5ZU/data/f79ff7494/e4d7fffc57b14910817d1582f0df3dd8 [2024-10-31 22:11:01,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:11:01,846 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:11:01,847 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:11:01,848 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:11:01,856 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:11:01,857 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:11:01" (1/1) ... [2024-10-31 22:11:01,858 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@304bbc35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:01, skipping insertion in model container [2024-10-31 22:11:01,858 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:11:01" (1/1) ... [2024-10-31 22:11:01,956 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:11:02,834 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 22:11:02,915 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 22:11:02,922 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 22:11:02,930 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 22:11:02,937 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 22:11:03,009 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 22:11:03,010 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 22:11:03,015 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 22:11:03,016 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 22:11:03,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:11:03,034 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:11:03,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:11:03,216 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:11:03,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:03 WrapperNode [2024-10-31 22:11:03,216 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:11:03,218 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:11:03,218 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:11:03,218 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:11:03,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:03" (1/1) ... [2024-10-31 22:11:03,266 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:03" (1/1) ... [2024-10-31 22:11:03,391 INFO L138 Inliner]: procedures = 177, calls = 724, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3292 [2024-10-31 22:11:03,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:11:03,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:11:03,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:11:03,392 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:11:03,405 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:03" (1/1) ... [2024-10-31 22:11:03,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:03" (1/1) ... [2024-10-31 22:11:03,431 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:03" (1/1) ... [2024-10-31 22:11:03,497 INFO L175 MemorySlicer]: Split 208 memory accesses to 3 slices as follows [2, 172, 34]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 42, 4]. [2024-10-31 22:11:03,497 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:03" (1/1) ... [2024-10-31 22:11:03,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:03" (1/1) ... [2024-10-31 22:11:03,622 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:03" (1/1) ... [2024-10-31 22:11:03,677 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:03" (1/1) ... [2024-10-31 22:11:03,687 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:03" (1/1) ... [2024-10-31 22:11:03,702 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:03" (1/1) ... [2024-10-31 22:11:03,780 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:11:03,780 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:11:03,781 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:11:03,781 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:11:03,782 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:03" (1/1) ... [2024-10-31 22:11:03,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:11:03,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734afc82-b265-4019-a999-5dffed03c160/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:11:03,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734afc82-b265-4019-a999-5dffed03c160/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:11:03,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_734afc82-b265-4019-a999-5dffed03c160/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:11:03,854 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-31 22:11:03,855 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-31 22:11:03,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:11:03,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:11:03,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:11:03,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-31 22:11:03,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-31 22:11:03,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:11:03,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:11:03,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:11:03,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-31 22:11:03,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-31 22:11:03,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-10-31 22:11:03,856 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-31 22:11:03,856 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-31 22:11:03,857 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-10-31 22:11:03,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:11:03,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:11:03,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:11:03,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:11:03,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 22:11:03,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:11:03,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 22:11:03,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-31 22:11:03,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-31 22:11:03,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:11:03,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:11:03,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:11:03,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:11:03,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:11:03,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:11:04,087 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:11:04,089 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:11:04,114 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-31 22:11:04,159 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-31 22:11:04,188 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-31 22:11:08,117 INFO L? ?]: Removed 1537 outVars from TransFormulas that were not future-live. [2024-10-31 22:11:08,117 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:11:08,219 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:11:08,220 INFO L316 CfgBuilder]: Removed 54 assume(true) statements. [2024-10-31 22:11:08,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:11:08 BoogieIcfgContainer [2024-10-31 22:11:08,220 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:11:08,226 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:11:08,226 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:11:08,230 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:11:08,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:11:01" (1/3) ... [2024-10-31 22:11:08,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2093466b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:11:08, skipping insertion in model container [2024-10-31 22:11:08,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:03" (2/3) ... [2024-10-31 22:11:08,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2093466b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:11:08, skipping insertion in model container [2024-10-31 22:11:08,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:11:08" (3/3) ... [2024-10-31 22:11:08,235 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test9-1.i [2024-10-31 22:11:08,255 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:11:08,256 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 424 error locations. [2024-10-31 22:11:08,376 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:11:08,384 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;@4155b1c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:11:08,385 INFO L334 AbstractCegarLoop]: Starting to check reachability of 424 error locations. [2024-10-31 22:11:08,400 INFO L276 IsEmpty]: Start isEmpty. Operand has 2066 states, 1136 states have (on average 2.007042253521127) internal successors, (2280), 2059 states have internal predecessors, (2280), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2024-10-31 22:11:08,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-31 22:11:08,408 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:11:08,409 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-31 22:11:08,409 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-31 22:11:08,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:08,416 INFO L85 PathProgramCache]: Analyzing trace with hash 65605, now seen corresponding path program 1 times [2024-10-31 22:11:08,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:08,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549426877] [2024-10-31 22:11:08,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:08,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:08,695 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 22:11:08,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:08,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549426877] [2024-10-31 22:11:08,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549426877] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:08,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:08,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:11:08,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579352091] [2024-10-31 22:11:08,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:08,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:11:08,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:08,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:08,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:08,750 INFO L87 Difference]: Start difference. First operand has 2066 states, 1136 states have (on average 2.007042253521127) internal successors, (2280), 2059 states have internal predecessors, (2280), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:11:10,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:11:10,646 INFO L93 Difference]: Finished difference Result 2052 states and 3216 transitions. [2024-10-31 22:11:10,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:10,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-10-31 22:11:10,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:11:10,703 INFO L225 Difference]: With dead ends: 2052 [2024-10-31 22:11:10,703 INFO L226 Difference]: Without dead ends: 2050 [2024-10-31 22:11:10,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 22:11:10,714 INFO L432 NwaCegarLoop]: 2827 mSDtfsCounter, 2091 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2594 SdHoareTripleChecker+Valid, 2879 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-31 22:11:10,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2594 Valid, 2879 Invalid, 959 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-31 22:11:10,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2024-10-31 22:11:11,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 2050. [2024-10-31 22:11:11,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2050 states, 1138 states have (on average 1.9384885764499122) internal successors, (2206), 2043 states have internal predecessors, (2206), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-10-31 22:11:11,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 3214 transitions. [2024-10-31 22:11:11,142 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 3214 transitions. Word has length 3 [2024-10-31 22:11:11,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:11:11,142 INFO L471 AbstractCegarLoop]: Abstraction has 2050 states and 3214 transitions. [2024-10-31 22:11:11,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:11:11,143 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 3214 transitions. [2024-10-31 22:11:11,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-31 22:11:11,143 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:11:11,144 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-31 22:11:11,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:11:11,144 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-31 22:11:11,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:11,145 INFO L85 PathProgramCache]: Analyzing trace with hash 65606, now seen corresponding path program 1 times [2024-10-31 22:11:11,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:11,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854257586] [2024-10-31 22:11:11,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:11,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:11,309 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 22:11:11,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:11,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854257586] [2024-10-31 22:11:11,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854257586] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:11,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:11,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:11:11,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409670232] [2024-10-31 22:11:11,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:11,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:11:11,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:11,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:11,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:11,316 INFO L87 Difference]: Start difference. First operand 2050 states and 3214 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:11:13,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:11:13,928 INFO L93 Difference]: Finished difference Result 3814 states and 6130 transitions. [2024-10-31 22:11:13,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:13,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-10-31 22:11:13,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:11:13,950 INFO L225 Difference]: With dead ends: 3814 [2024-10-31 22:11:13,950 INFO L226 Difference]: Without dead ends: 3814 [2024-10-31 22:11:13,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 22:11:13,954 INFO L432 NwaCegarLoop]: 2929 mSDtfsCounter, 1908 mSDsluCounter, 2280 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2410 SdHoareTripleChecker+Valid, 5209 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:11:13,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2410 Valid, 5209 Invalid, 1211 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-31 22:11:13,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3814 states. [2024-10-31 22:11:14,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3814 to 3550. [2024-10-31 22:11:14,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 2139 states have (on average 1.9205236091631603) internal successors, (4108), 3541 states have internal predecessors, (4108), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-10-31 22:11:14,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 6120 transitions. [2024-10-31 22:11:14,439 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 6120 transitions. Word has length 3 [2024-10-31 22:11:14,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:11:14,442 INFO L471 AbstractCegarLoop]: Abstraction has 3550 states and 6120 transitions. [2024-10-31 22:11:14,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:11:14,443 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 6120 transitions. [2024-10-31 22:11:14,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-31 22:11:14,443 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:11:14,444 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:11:14,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:11:14,444 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-31 22:11:14,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:14,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1329278099, now seen corresponding path program 1 times [2024-10-31 22:11:14,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:14,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389504649] [2024-10-31 22:11:14,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:14,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:14,583 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 22:11:14,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:14,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389504649] [2024-10-31 22:11:14,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389504649] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:14,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:14,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:11:14,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038360626] [2024-10-31 22:11:14,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:14,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:11:14,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:14,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:14,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:14,587 INFO L87 Difference]: Start difference. First operand 3550 states and 6120 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 22:11:16,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:11:16,561 INFO L93 Difference]: Finished difference Result 6220 states and 11072 transitions. [2024-10-31 22:11:16,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:16,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2024-10-31 22:11:16,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:11:16,600 INFO L225 Difference]: With dead ends: 6220 [2024-10-31 22:11:16,600 INFO L226 Difference]: Without dead ends: 6220 [2024-10-31 22:11:16,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 22:11:16,602 INFO L432 NwaCegarLoop]: 5189 mSDtfsCounter, 1816 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 7679 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-31 22:11:16,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 7679 Invalid, 1130 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-31 22:11:16,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6220 states. [2024-10-31 22:11:17,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6220 to 3618. [2024-10-31 22:11:17,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 2217 states have (on average 1.9174560216508796) internal successors, (4251), 3609 states have internal predecessors, (4251), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-10-31 22:11:17,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 6263 transitions. [2024-10-31 22:11:17,401 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 6263 transitions. Word has length 8 [2024-10-31 22:11:17,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:11:17,401 INFO L471 AbstractCegarLoop]: Abstraction has 3618 states and 6263 transitions. [2024-10-31 22:11:17,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 22:11:17,402 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 6263 transitions. [2024-10-31 22:11:17,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-31 22:11:17,402 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:11:17,402 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:11:17,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:11:17,403 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-31 22:11:17,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:17,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1329278098, now seen corresponding path program 1 times [2024-10-31 22:11:17,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:17,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360659433] [2024-10-31 22:11:17,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:17,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:17,499 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 22:11:17,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:17,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360659433] [2024-10-31 22:11:17,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360659433] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:17,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:17,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:11:17,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021790151] [2024-10-31 22:11:17,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:17,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:11:17,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:17,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:17,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:17,503 INFO L87 Difference]: Start difference. First operand 3618 states and 6263 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 22:11:19,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:11:19,048 INFO L93 Difference]: Finished difference Result 4881 states and 8573 transitions. [2024-10-31 22:11:19,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:19,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2024-10-31 22:11:19,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:11:19,072 INFO L225 Difference]: With dead ends: 4881 [2024-10-31 22:11:19,073 INFO L226 Difference]: Without dead ends: 4881 [2024-10-31 22:11:19,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 22:11:19,074 INFO L432 NwaCegarLoop]: 5027 mSDtfsCounter, 2076 mSDsluCounter, 2305 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2579 SdHoareTripleChecker+Valid, 7332 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:11:19,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2579 Valid, 7332 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-31 22:11:19,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4881 states. [2024-10-31 22:11:19,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4881 to 3571. [2024-10-31 22:11:19,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3571 states, 2217 states have (on average 1.8822733423545333) internal successors, (4173), 3562 states have internal predecessors, (4173), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-10-31 22:11:19,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3571 states to 3571 states and 6185 transitions. [2024-10-31 22:11:19,653 INFO L78 Accepts]: Start accepts. Automaton has 3571 states and 6185 transitions. Word has length 8 [2024-10-31 22:11:19,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:11:19,653 INFO L471 AbstractCegarLoop]: Abstraction has 3571 states and 6185 transitions. [2024-10-31 22:11:19,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 22:11:19,654 INFO L276 IsEmpty]: Start isEmpty. Operand 3571 states and 6185 transitions. [2024-10-31 22:11:19,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-31 22:11:19,654 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:11:19,654 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:11:19,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:11:19,656 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr422ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-31 22:11:19,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:19,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1321452160, now seen corresponding path program 1 times [2024-10-31 22:11:19,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:19,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246876075] [2024-10-31 22:11:19,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:19,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:19,812 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 22:11:19,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:19,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246876075] [2024-10-31 22:11:19,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246876075] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:19,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:19,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:11:19,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138999658] [2024-10-31 22:11:19,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:19,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:11:19,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:19,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:11:19,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:11:19,817 INFO L87 Difference]: Start difference. First operand 3571 states and 6185 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 22:11:21,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:11:21,108 INFO L93 Difference]: Finished difference Result 6790 states and 11777 transitions. [2024-10-31 22:11:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:11:21,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2024-10-31 22:11:21,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:11:21,158 INFO L225 Difference]: With dead ends: 6790 [2024-10-31 22:11:21,163 INFO L226 Difference]: Without dead ends: 6790 [2024-10-31 22:11:21,163 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 22:11:21,164 INFO L432 NwaCegarLoop]: 3407 mSDtfsCounter, 2105 mSDsluCounter, 5997 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2608 SdHoareTripleChecker+Valid, 9404 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:11:21,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2608 Valid, 9404 Invalid, 647 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-31 22:11:21,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6790 states. [2024-10-31 22:11:21,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6790 to 3573. [2024-10-31 22:11:21,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3573 states, 2219 states have (on average 1.8814781433077963) internal successors, (4175), 3564 states have internal predecessors, (4175), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-10-31 22:11:22,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3573 states to 3573 states and 6187 transitions. [2024-10-31 22:11:22,009 INFO L78 Accepts]: Start accepts. Automaton has 3573 states and 6187 transitions. Word has length 10 [2024-10-31 22:11:22,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:11:22,009 INFO L471 AbstractCegarLoop]: Abstraction has 3573 states and 6187 transitions. [2024-10-31 22:11:22,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 22:11:22,010 INFO L276 IsEmpty]: Start isEmpty. Operand 3573 states and 6187 transitions. [2024-10-31 22:11:22,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-31 22:11:22,010 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:11:22,011 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:11:22,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:11:22,011 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-31 22:11:22,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:22,012 INFO L85 PathProgramCache]: Analyzing trace with hash 183846334, now seen corresponding path program 1 times [2024-10-31 22:11:22,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:22,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803668739] [2024-10-31 22:11:22,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:22,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:22,084 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 22:11:22,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:22,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803668739] [2024-10-31 22:11:22,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803668739] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:22,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:22,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:11:22,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035984401] [2024-10-31 22:11:22,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:22,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:11:22,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:22,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:11:22,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:11:22,088 INFO L87 Difference]: Start difference. First operand 3573 states and 6187 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:11:25,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:11:25,764 INFO L93 Difference]: Finished difference Result 3648 states and 6293 transitions. [2024-10-31 22:11:25,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:11:25,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-10-31 22:11:25,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:11:25,784 INFO L225 Difference]: With dead ends: 3648 [2024-10-31 22:11:25,785 INFO L226 Difference]: Without dead ends: 3648 [2024-10-31 22:11:25,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:11:25,786 INFO L432 NwaCegarLoop]: 2728 mSDtfsCounter, 2341 mSDsluCounter, 1600 mSDsCounter, 0 mSdLazyCounter, 2340 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2844 SdHoareTripleChecker+Valid, 4328 SdHoareTripleChecker+Invalid, 2368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-10-31 22:11:25,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2844 Valid, 4328 Invalid, 2368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2340 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-10-31 22:11:25,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3648 states. [2024-10-31 22:11:26,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3648 to 3550. [2024-10-31 22:11:26,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 2219 states have (on average 1.8607480847228481) internal successors, (4129), 3541 states have internal predecessors, (4129), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-10-31 22:11:26,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 6141 transitions. [2024-10-31 22:11:26,165 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 6141 transitions. Word has length 18 [2024-10-31 22:11:26,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:11:26,165 INFO L471 AbstractCegarLoop]: Abstraction has 3550 states and 6141 transitions. [2024-10-31 22:11:26,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:11:26,166 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 6141 transitions. [2024-10-31 22:11:26,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-31 22:11:26,166 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:11:26,166 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:11:26,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:11:26,167 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-31 22:11:26,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:26,167 INFO L85 PathProgramCache]: Analyzing trace with hash 183846335, now seen corresponding path program 1 times [2024-10-31 22:11:26,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:26,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452621160] [2024-10-31 22:11:26,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:26,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:26,265 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 22:11:26,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:26,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452621160] [2024-10-31 22:11:26,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452621160] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:26,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:26,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:11:26,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567073713] [2024-10-31 22:11:26,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:26,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:11:26,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:26,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:26,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:26,270 INFO L87 Difference]: Start difference. First operand 3550 states and 6141 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:11:26,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:11:26,362 INFO L93 Difference]: Finished difference Result 3412 states and 5935 transitions. [2024-10-31 22:11:26,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:26,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-10-31 22:11:26,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:11:26,392 INFO L225 Difference]: With dead ends: 3412 [2024-10-31 22:11:26,392 INFO L226 Difference]: Without dead ends: 3412 [2024-10-31 22:11:26,392 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 22:11:26,393 INFO L432 NwaCegarLoop]: 3009 mSDtfsCounter, 61 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 5965 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:11:26,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 5965 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:11:26,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3412 states. [2024-10-31 22:11:26,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3412 to 3412. [2024-10-31 22:11:26,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 2093 states have (on average 1.8743430482560917) internal successors, (3923), 3403 states have internal predecessors, (3923), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-10-31 22:11:26,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 5935 transitions. [2024-10-31 22:11:26,737 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 5935 transitions. Word has length 18 [2024-10-31 22:11:26,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:11:26,738 INFO L471 AbstractCegarLoop]: Abstraction has 3412 states and 5935 transitions. [2024-10-31 22:11:26,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:11:26,738 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 5935 transitions. [2024-10-31 22:11:26,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-31 22:11:26,739 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:11:26,739 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] [2024-10-31 22:11:26,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:11:26,740 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-31 22:11:26,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:26,741 INFO L85 PathProgramCache]: Analyzing trace with hash 582825947, now seen corresponding path program 1 times [2024-10-31 22:11:26,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:26,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500638878] [2024-10-31 22:11:26,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:26,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:26,826 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 22:11:26,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:26,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500638878] [2024-10-31 22:11:26,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500638878] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:26,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:26,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:11:26,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554212249] [2024-10-31 22:11:26,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:26,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:11:26,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:26,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:11:26,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:11:26,829 INFO L87 Difference]: Start difference. First operand 3412 states and 5935 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:11:26,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:11:26,930 INFO L93 Difference]: Finished difference Result 3383 states and 5885 transitions. [2024-10-31 22:11:26,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:11:26,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-10-31 22:11:26,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:11:26,941 INFO L225 Difference]: With dead ends: 3383 [2024-10-31 22:11:26,941 INFO L226 Difference]: Without dead ends: 3383 [2024-10-31 22:11:26,941 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 22:11:26,942 INFO L432 NwaCegarLoop]: 2974 mSDtfsCounter, 41 mSDsluCounter, 5920 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 8894 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:11:26,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 8894 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:11:26,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3383 states. [2024-10-31 22:11:27,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3383 to 3377. [2024-10-31 22:11:27,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3377 states, 2065 states have (on average 1.872639225181598) internal successors, (3867), 3368 states have internal predecessors, (3867), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-10-31 22:11:27,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3377 states to 3377 states and 5879 transitions. [2024-10-31 22:11:27,406 INFO L78 Accepts]: Start accepts. Automaton has 3377 states and 5879 transitions. Word has length 20 [2024-10-31 22:11:27,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:11:27,407 INFO L471 AbstractCegarLoop]: Abstraction has 3377 states and 5879 transitions. [2024-10-31 22:11:27,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:11:27,410 INFO L276 IsEmpty]: Start isEmpty. Operand 3377 states and 5879 transitions. [2024-10-31 22:11:27,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-31 22:11:27,411 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:11:27,411 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] [2024-10-31 22:11:27,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:11:27,411 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-31 22:11:27,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:27,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1292750889, now seen corresponding path program 1 times [2024-10-31 22:11:27,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:27,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795079264] [2024-10-31 22:11:27,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:27,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:27,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:27,624 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 22:11:27,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:27,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795079264] [2024-10-31 22:11:27,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795079264] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:27,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:27,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:11:27,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437544856] [2024-10-31 22:11:27,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:27,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:11:27,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:27,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:11:27,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:11:27,628 INFO L87 Difference]: Start difference. First operand 3377 states and 5879 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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)