./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.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_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/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_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/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_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/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 765142a1ef820c0c2cf2fa98a3978a1412f5a1196c629c20848264001100dcc9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:58:51,499 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:58:51,598 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-10-31 21:58:51,608 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:58:51,608 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:58:51,651 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:58:51,652 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:58:51,653 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:58:51,655 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:58:51,657 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:58:51,658 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:58:51,658 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:58:51,659 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:58:51,661 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:58:51,662 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:58:51,662 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:58:51,662 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:58:51,663 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:58:51,663 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:58:51,667 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:58:51,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:58:51,668 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:58:51,669 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 21:58:51,669 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 21:58:51,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:58:51,670 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:58:51,670 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 21:58:51,670 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:58:51,671 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:58:51,671 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:58:51,671 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:58:51,672 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:58:51,673 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:58:51,673 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:58:51,673 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:58:51,674 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:58:51,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:58:51,674 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:58:51,675 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:58:51,675 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:58:51,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:58:51,680 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:58:51,680 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:58:51,680 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:58:51,681 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:58:51,681 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_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 765142a1ef820c0c2cf2fa98a3978a1412f5a1196c629c20848264001100dcc9 [2024-10-31 21:58:51,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:58:52,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:58:52,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:58:52,035 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:58:52,035 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:58:52,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i Unable to find full path for "g++" [2024-10-31 21:58:54,233 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:58:54,625 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:58:54,627 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i [2024-10-31 21:58:54,656 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/bin/uautomizer-verify-4GaUIPS5ZU/data/8893bd890/b0771f94087d4bf09d2aa8e269f7b48f/FLAGae84dadad [2024-10-31 21:58:54,680 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/bin/uautomizer-verify-4GaUIPS5ZU/data/8893bd890/b0771f94087d4bf09d2aa8e269f7b48f [2024-10-31 21:58:54,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:58:54,688 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:58:54,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:58:54,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:58:54,700 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:58:54,701 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:58:54" (1/1) ... [2024-10-31 21:58:54,704 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@324f5044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:54, skipping insertion in model container [2024-10-31 21:58:54,704 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:58:54" (1/1) ... [2024-10-31 21:58:54,789 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:58:55,498 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 21:58:55,551 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 21:58:55,562 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 21:58:55,569 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 21:58:55,579 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 21:58:55,622 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 21:58:55,625 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 21:58:55,630 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 21:58:55,643 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 21:58:55,662 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 21:58:55,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:58:55,692 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:58:55,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:58:55,909 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:58:55,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:55 WrapperNode [2024-10-31 21:58:55,910 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:58:55,912 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:58:55,912 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:58:55,913 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:58:55,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:55" (1/1) ... [2024-10-31 21:58:55,975 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:55" (1/1) ... [2024-10-31 21:58:56,155 INFO L138 Inliner]: procedures = 176, calls = 336, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1591 [2024-10-31 21:58:56,156 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:58:56,157 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:58:56,157 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:58:56,157 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:58:56,175 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:55" (1/1) ... [2024-10-31 21:58:56,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:55" (1/1) ... [2024-10-31 21:58:56,188 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:55" (1/1) ... [2024-10-31 21:58:56,386 INFO L175 MemorySlicer]: Split 309 memory accesses to 2 slices as follows [2, 307]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 82 writes are split as follows [0, 82]. [2024-10-31 21:58:56,390 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:55" (1/1) ... [2024-10-31 21:58:56,391 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:55" (1/1) ... [2024-10-31 21:58:56,469 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:55" (1/1) ... [2024-10-31 21:58:56,494 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:55" (1/1) ... [2024-10-31 21:58:56,502 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:55" (1/1) ... [2024-10-31 21:58:56,518 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:55" (1/1) ... [2024-10-31 21:58:56,544 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:58:56,550 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:58:56,550 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:58:56,550 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:58:56,551 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:55" (1/1) ... [2024-10-31 21:58:56,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:58:56,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:56,597 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:56,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:58:56,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 21:58:56,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 21:58:56,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-31 21:58:56,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-31 21:58:56,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 21:58:56,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 21:58:56,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-31 21:58:56,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-31 21:58:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-31 21:58:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-31 21:58:56,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 21:58:56,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:58:56,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 21:58:56,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 21:58:56,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 21:58:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-31 21:58:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 21:58:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:58:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 21:58:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:58:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:58:56,946 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:58:56,952 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:58:59,612 INFO L? ?]: Removed 389 outVars from TransFormulas that were not future-live. [2024-10-31 21:58:59,612 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:58:59,644 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:58:59,644 INFO L316 CfgBuilder]: Removed 60 assume(true) statements. [2024-10-31 21:58:59,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:58:59 BoogieIcfgContainer [2024-10-31 21:58:59,649 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:58:59,651 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:58:59,652 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:58:59,656 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:58:59,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:58:54" (1/3) ... [2024-10-31 21:58:59,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2755ea23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:58:59, skipping insertion in model container [2024-10-31 21:58:59,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:55" (2/3) ... [2024-10-31 21:58:59,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2755ea23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:58:59, skipping insertion in model container [2024-10-31 21:58:59,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:58:59" (3/3) ... [2024-10-31 21:58:59,661 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test4-1.i [2024-10-31 21:58:59,684 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:58:59,685 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 21:58:59,773 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:58:59,781 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;@26ceded6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:58:59,782 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-31 21:58:59,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 428 states, 407 states have (on average 1.6191646191646192) internal successors, (659), 419 states have internal predecessors, (659), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-31 21:58:59,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-31 21:58:59,800 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:59,801 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:59,802 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-31 21:58:59,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:59,809 INFO L85 PathProgramCache]: Analyzing trace with hash -653849795, now seen corresponding path program 1 times [2024-10-31 21:58:59,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:59,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642744291] [2024-10-31 21:58:59,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:59,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:00,116 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 21:59:00,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:00,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642744291] [2024-10-31 21:59:00,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642744291] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:00,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:00,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:00,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612259322] [2024-10-31 21:59:00,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:00,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:00,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:00,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:00,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:00,177 INFO L87 Difference]: Start difference. First operand has 428 states, 407 states have (on average 1.6191646191646192) internal successors, (659), 419 states have internal predecessors, (659), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:00,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:00,372 INFO L93 Difference]: Finished difference Result 811 states and 1179 transitions. [2024-10-31 21:59:00,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:00,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-31 21:59:00,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:00,402 INFO L225 Difference]: With dead ends: 811 [2024-10-31 21:59:00,403 INFO L226 Difference]: Without dead ends: 809 [2024-10-31 21:59:00,406 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 21:59:00,412 INFO L432 NwaCegarLoop]: 669 mSDtfsCounter, 545 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:00,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 1285 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:59:00,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2024-10-31 21:59:00,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 426. [2024-10-31 21:59:00,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 406 states have (on average 1.4482758620689655) internal successors, (588), 417 states have internal predecessors, (588), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-31 21:59:00,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 620 transitions. [2024-10-31 21:59:00,529 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 620 transitions. Word has length 7 [2024-10-31 21:59:00,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:00,530 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 620 transitions. [2024-10-31 21:59:00,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:00,531 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 620 transitions. [2024-10-31 21:59:00,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-31 21:59:00,539 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:00,540 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:59:00,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:59:00,540 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-31 21:59:00,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:00,541 INFO L85 PathProgramCache]: Analyzing trace with hash -650190524, now seen corresponding path program 1 times [2024-10-31 21:59:00,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:00,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043101584] [2024-10-31 21:59:00,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:00,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:01,520 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 21:59:01,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:01,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043101584] [2024-10-31 21:59:01,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043101584] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:01,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:01,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:59:01,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337457824] [2024-10-31 21:59:01,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:01,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:01,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:01,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:01,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:01,550 INFO L87 Difference]: Start difference. First operand 426 states and 620 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 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 21:59:01,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:01,675 INFO L93 Difference]: Finished difference Result 429 states and 616 transitions. [2024-10-31 21:59:01,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:01,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 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 153 [2024-10-31 21:59:01,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:01,681 INFO L225 Difference]: With dead ends: 429 [2024-10-31 21:59:01,681 INFO L226 Difference]: Without dead ends: 429 [2024-10-31 21:59:01,682 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 21:59:01,683 INFO L432 NwaCegarLoop]: 591 mSDtfsCounter, 105 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1680 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 21:59:01,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1680 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:01,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-10-31 21:59:01,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 426. [2024-10-31 21:59:01,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 406 states have (on average 1.4310344827586208) internal successors, (581), 417 states have internal predecessors, (581), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-31 21:59:01,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 613 transitions. [2024-10-31 21:59:01,704 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 613 transitions. Word has length 153 [2024-10-31 21:59:01,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:01,704 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 613 transitions. [2024-10-31 21:59:01,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 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 21:59:01,705 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 613 transitions. [2024-10-31 21:59:01,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-31 21:59:01,708 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:01,708 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:59:01,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:59:01,709 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-31 21:59:01,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:01,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1243757488, now seen corresponding path program 1 times [2024-10-31 21:59:01,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:01,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162231661] [2024-10-31 21:59:01,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:01,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:01,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:02,072 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 21:59:02,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:02,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162231661] [2024-10-31 21:59:02,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162231661] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:02,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:02,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:02,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344446496] [2024-10-31 21:59:02,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:02,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:02,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:02,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:02,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:02,079 INFO L87 Difference]: Start difference. First operand 426 states and 613 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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 21:59:02,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:02,157 INFO L93 Difference]: Finished difference Result 555 states and 801 transitions. [2024-10-31 21:59:02,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:02,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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 153 [2024-10-31 21:59:02,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:02,164 INFO L225 Difference]: With dead ends: 555 [2024-10-31 21:59:02,164 INFO L226 Difference]: Without dead ends: 555 [2024-10-31 21:59:02,165 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 21:59:02,166 INFO L432 NwaCegarLoop]: 611 mSDtfsCounter, 134 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:02,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1215 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:59:02,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-10-31 21:59:02,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-10-31 21:59:02,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 535 states have (on average 1.4373831775700934) internal successors, (769), 546 states have internal predecessors, (769), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-31 21:59:02,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 801 transitions. [2024-10-31 21:59:02,205 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 801 transitions. Word has length 153 [2024-10-31 21:59:02,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:02,207 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 801 transitions. [2024-10-31 21:59:02,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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 21:59:02,208 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 801 transitions. [2024-10-31 21:59:02,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-31 21:59:02,214 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:02,214 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:59:02,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:59:02,215 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-31 21:59:02,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:02,218 INFO L85 PathProgramCache]: Analyzing trace with hash -237708383, now seen corresponding path program 1 times [2024-10-31 21:59:02,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:02,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736539577] [2024-10-31 21:59:02,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:02,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:02,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 21:59:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:02,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-31 21:59:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:02,905 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:02,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:02,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736539577] [2024-10-31 21:59:02,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736539577] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:02,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:02,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:59:02,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110638834] [2024-10-31 21:59:02,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:02,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:02,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:02,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:02,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:02,910 INFO L87 Difference]: Start difference. First operand 555 states and 801 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:59:03,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:03,875 INFO L93 Difference]: Finished difference Result 516 states and 733 transitions. [2024-10-31 21:59:03,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:59:03,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 168 [2024-10-31 21:59:03,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:03,880 INFO L225 Difference]: With dead ends: 516 [2024-10-31 21:59:03,880 INFO L226 Difference]: Without dead ends: 516 [2024-10-31 21:59:03,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:59:03,882 INFO L432 NwaCegarLoop]: 500 mSDtfsCounter, 45 mSDsluCounter, 1355 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1855 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:03,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 1855 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-31 21:59:03,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-10-31 21:59:03,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 513. [2024-10-31 21:59:03,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 493 states have (on average 1.4036511156186613) internal successors, (692), 504 states have internal predecessors, (692), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-31 21:59:03,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 724 transitions. [2024-10-31 21:59:03,907 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 724 transitions. Word has length 168 [2024-10-31 21:59:03,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:03,910 INFO L471 AbstractCegarLoop]: Abstraction has 513 states and 724 transitions. [2024-10-31 21:59:03,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:59:03,911 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 724 transitions. [2024-10-31 21:59:03,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-31 21:59:03,915 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:03,915 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:59:03,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:59:03,916 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-31 21:59:03,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:03,917 INFO L85 PathProgramCache]: Analyzing trace with hash 956392717, now seen corresponding path program 1 times [2024-10-31 21:59:03,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:03,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171886259] [2024-10-31 21:59:03,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:03,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:04,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 21:59:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:04,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-31 21:59:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:04,483 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:04,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:04,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171886259] [2024-10-31 21:59:04,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171886259] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:04,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:04,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:59:04,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416763525] [2024-10-31 21:59:04,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:04,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:04,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:04,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:04,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:04,487 INFO L87 Difference]: Start difference. First operand 513 states and 724 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:59:05,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:05,199 INFO L93 Difference]: Finished difference Result 510 states and 723 transitions. [2024-10-31 21:59:05,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:59:05,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 168 [2024-10-31 21:59:05,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:05,203 INFO L225 Difference]: With dead ends: 510 [2024-10-31 21:59:05,203 INFO L226 Difference]: Without dead ends: 510 [2024-10-31 21:59:05,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:59:05,204 INFO L432 NwaCegarLoop]: 502 mSDtfsCounter, 18 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:05,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1862 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-31 21:59:05,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-10-31 21:59:05,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 507. [2024-10-31 21:59:05,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 487 states have (on average 1.4004106776180698) internal successors, (682), 498 states have internal predecessors, (682), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-31 21:59:05,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 714 transitions. [2024-10-31 21:59:05,224 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 714 transitions. Word has length 168 [2024-10-31 21:59:05,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:05,225 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 714 transitions. [2024-10-31 21:59:05,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:59:05,225 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 714 transitions. [2024-10-31 21:59:05,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-31 21:59:05,227 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:05,228 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:59:05,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 21:59:05,228 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-31 21:59:05,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:05,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1932370155, now seen corresponding path program 1 times [2024-10-31 21:59:05,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:05,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281188973] [2024-10-31 21:59:05,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:05,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:05,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 21:59:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:05,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-31 21:59:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:05,719 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:05,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:05,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281188973] [2024-10-31 21:59:05,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281188973] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:05,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:05,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:59:05,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194356697] [2024-10-31 21:59:05,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:05,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:05,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:05,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:05,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:05,723 INFO L87 Difference]: Start difference. First operand 507 states and 714 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:59:06,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:06,348 INFO L93 Difference]: Finished difference Result 650 states and 913 transitions. [2024-10-31 21:59:06,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:06,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 168 [2024-10-31 21:59:06,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:06,354 INFO L225 Difference]: With dead ends: 650 [2024-10-31 21:59:06,354 INFO L226 Difference]: Without dead ends: 650 [2024-10-31 21:59:06,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:06,356 INFO L432 NwaCegarLoop]: 517 mSDtfsCounter, 248 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:06,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 1423 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-31 21:59:06,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2024-10-31 21:59:06,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 647. [2024-10-31 21:59:06,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 624 states have (on average 1.3830128205128205) internal successors, (863), 635 states have internal predecessors, (863), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-31 21:59:06,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 901 transitions. [2024-10-31 21:59:06,387 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 901 transitions. Word has length 168 [2024-10-31 21:59:06,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:06,388 INFO L471 AbstractCegarLoop]: Abstraction has 647 states and 901 transitions. [2024-10-31 21:59:06,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:59:06,388 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 901 transitions. [2024-10-31 21:59:06,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-10-31 21:59:06,391 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:06,391 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:59:06,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 21:59:06,392 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-31 21:59:06,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:06,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1897741354, now seen corresponding path program 1 times [2024-10-31 21:59:06,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:06,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092868231] [2024-10-31 21:59:06,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:06,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:07,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 21:59:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:07,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-31 21:59:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:07,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-31 21:59:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:07,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-31 21:59:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:07,078 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-31 21:59:07,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:07,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092868231] [2024-10-31 21:59:07,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092868231] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:07,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858504263] [2024-10-31 21:59:07,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:07,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:07,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:07,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:07,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 21:59:07,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:07,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 21:59:07,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:08,166 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-31 21:59:08,167 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:08,607 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-31 21:59:08,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858504263] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:59:08,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:59:08,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2024-10-31 21:59:08,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773036645] [2024-10-31 21:59:08,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:08,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 21:59:08,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:08,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 21:59:08,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-31 21:59:08,613 INFO L87 Difference]: Start difference. First operand 647 states and 901 transitions. Second operand has 8 states, 8 states have (on average 60.25) internal successors, (482), 7 states have internal predecessors, (482), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-31 21:59:09,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:09,587 INFO L93 Difference]: Finished difference Result 1385 states and 1939 transitions. [2024-10-31 21:59:09,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 21:59:09,589 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 60.25) internal successors, (482), 7 states have internal predecessors, (482), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 183 [2024-10-31 21:59:09,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:09,596 INFO L225 Difference]: With dead ends: 1385 [2024-10-31 21:59:09,596 INFO L226 Difference]: Without dead ends: 1385 [2024-10-31 21:59:09,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 370 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 21:59:09,599 INFO L432 NwaCegarLoop]: 515 mSDtfsCounter, 2373 mSDsluCounter, 1853 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 2368 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:09,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2405 Valid, 2368 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-31 21:59:09,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2024-10-31 21:59:09,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1382. [2024-10-31 21:59:09,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 1344 states have (on average 1.3720238095238095) internal successors, (1844), 1355 states have internal predecessors, (1844), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 25 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-31 21:59:09,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 1912 transitions. [2024-10-31 21:59:09,643 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 1912 transitions. Word has length 183 [2024-10-31 21:59:09,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:09,643 INFO L471 AbstractCegarLoop]: Abstraction has 1382 states and 1912 transitions. [2024-10-31 21:59:09,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 60.25) internal successors, (482), 7 states have internal predecessors, (482), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-31 21:59:09,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 1912 transitions. [2024-10-31 21:59:09,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2024-10-31 21:59:09,662 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:09,663 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 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 21:59:09,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 21:59:09,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:09,864 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-31 21:59:09,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:09,865 INFO L85 PathProgramCache]: Analyzing trace with hash -251907393, now seen corresponding path program 1 times [2024-10-31 21:59:09,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:09,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289794634] [2024-10-31 21:59:09,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:09,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:12,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 21:59:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:12,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-31 21:59:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:12,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-31 21:59:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:12,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-31 21:59:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:12,518 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 4 proven. 534 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2024-10-31 21:59:12,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:12,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289794634] [2024-10-31 21:59:12,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289794634] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:12,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812626512] [2024-10-31 21:59:12,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:12,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:12,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:12,522 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:12,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e1fe5a5-dc4f-400d-bfbc-31e9a2e83ce2/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 21:59:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:14,140 INFO L255 TraceCheckSpWp]: Trace formula consists of 3092 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 21:59:14,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:15,604 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-31 21:59:15,606 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:16,962 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-31 21:59:16,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812626512] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:59:16,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:59:16,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 18 [2024-10-31 21:59:16,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717866449] [2024-10-31 21:59:16,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:16,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-31 21:59:16,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:16,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-31 21:59:16,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-10-31 21:59:16,970 INFO L87 Difference]: Start difference. First operand 1382 states and 1912 transitions. Second operand has 18 states, 18 states have (on average 86.77777777777777) internal successors, (1562), 17 states have internal predecessors, (1562), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12)