./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-memory-alloca/b.10-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_a725e9c9-ec74-4bf4-a1c7-a023e4564c07/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a725e9c9-ec74-4bf4-a1c7-a023e4564c07/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_a725e9c9-ec74-4bf4-a1c7-a023e4564c07/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a725e9c9-ec74-4bf4-a1c7-a023e4564c07/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-memory-alloca/b.10-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a725e9c9-ec74-4bf4-a1c7-a023e4564c07/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a725e9c9-ec74-4bf4-a1c7-a023e4564c07/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 64bit --witnessprinter.graph.data.programhash 8f561bb39ee57b07ab3831dd4ee3a1e439959bee7f69e1cabc2315100876031b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:01:24,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:01:24,541 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a725e9c9-ec74-4bf4-a1c7-a023e4564c07/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2024-10-31 22:01:24,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:01:24,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:01:24,585 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:01:24,588 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:01:24,589 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:01:24,590 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:01:24,591 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:01:24,593 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:01:24,594 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:01:24,595 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:01:24,595 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:01:24,595 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:01:24,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:01:24,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:01:24,600 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:01:24,601 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:01:24,601 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:01:24,601 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:01:24,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:01:24,602 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:01:24,603 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:01:24,603 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:01:24,603 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:01:24,603 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:01:24,604 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:01:24,604 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:01:24,604 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:01:24,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:01:24,605 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:01:24,605 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:01:24,610 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:01:24,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:01:24,610 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:01:24,610 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:01:24,611 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:01:24,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:01:24,611 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_a725e9c9-ec74-4bf4-a1c7-a023e4564c07/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a725e9c9-ec74-4bf4-a1c7-a023e4564c07/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f561bb39ee57b07ab3831dd4ee3a1e439959bee7f69e1cabc2315100876031b [2024-10-31 22:01:24,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:01:24,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:01:24,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:01:24,929 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:01:24,929 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:01:24,931 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a725e9c9-ec74-4bf4-a1c7-a023e4564c07/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-memory-alloca/b.10-alloca.i Unable to find full path for "g++" [2024-10-31 22:01:27,005 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:01:27,296 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:01:27,297 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a725e9c9-ec74-4bf4-a1c7-a023e4564c07/sv-benchmarks/c/termination-memory-alloca/b.10-alloca.i [2024-10-31 22:01:27,311 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a725e9c9-ec74-4bf4-a1c7-a023e4564c07/bin/uautomizer-verify-4GaUIPS5ZU/data/d2f8b2882/0a669995eaf2499aaf1889c371cbd30d/FLAG8f820d2a0 [2024-10-31 22:01:27,332 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a725e9c9-ec74-4bf4-a1c7-a023e4564c07/bin/uautomizer-verify-4GaUIPS5ZU/data/d2f8b2882/0a669995eaf2499aaf1889c371cbd30d [2024-10-31 22:01:27,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:01:27,339 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:01:27,340 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:01:27,340 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:01:27,346 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:01:27,346 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:01:27" (1/1) ... [2024-10-31 22:01:27,348 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff94b3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:27, skipping insertion in model container [2024-10-31 22:01:27,348 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:01:27" (1/1) ... [2024-10-31 22:01:27,406 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:01:27,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:01:27,803 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:01:27,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:01:27,893 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:01:27,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:27 WrapperNode [2024-10-31 22:01:27,894 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:01:27,895 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:01:27,895 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:01:27,895 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:01:27,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:27" (1/1) ... [2024-10-31 22:01:27,916 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:27" (1/1) ... [2024-10-31 22:01:27,945 INFO L138 Inliner]: procedures = 111, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 108 [2024-10-31 22:01:27,947 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:01:27,948 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:01:27,948 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:01:27,949 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:01:27,960 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:27" (1/1) ... [2024-10-31 22:01:27,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:27" (1/1) ... [2024-10-31 22:01:27,964 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:27" (1/1) ... [2024-10-31 22:01:27,988 INFO L175 MemorySlicer]: Split 18 memory accesses to 3 slices as follows [9, 7, 2]. 50 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0, 0]. The 5 writes are split as follows [2, 2, 1]. [2024-10-31 22:01:27,988 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:27" (1/1) ... [2024-10-31 22:01:27,988 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:27" (1/1) ... [2024-10-31 22:01:27,994 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:27" (1/1) ... [2024-10-31 22:01:28,001 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:27" (1/1) ... [2024-10-31 22:01:28,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:27" (1/1) ... [2024-10-31 22:01:28,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:27" (1/1) ... [2024-10-31 22:01:28,011 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:01:28,012 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:01:28,012 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:01:28,012 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:01:28,014 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:27" (1/1) ... [2024-10-31 22:01:28,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:01:28,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a725e9c9-ec74-4bf4-a1c7-a023e4564c07/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:28,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a725e9c9-ec74-4bf4-a1c7-a023e4564c07/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:28,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a725e9c9-ec74-4bf4-a1c7-a023e4564c07/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:01:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:01:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:01:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:01:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:01:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:01:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:01:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:01:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:01:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:01:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:01:28,232 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:01:28,234 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:01:28,577 INFO L? ?]: Removed 87 outVars from TransFormulas that were not future-live. [2024-10-31 22:01:28,577 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:01:28,593 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:01:28,593 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:01:28,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:28 BoogieIcfgContainer [2024-10-31 22:01:28,594 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:01:28,601 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:01:28,601 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:01:28,605 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:01:28,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:01:27" (1/3) ... [2024-10-31 22:01:28,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72bebd77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:01:28, skipping insertion in model container [2024-10-31 22:01:28,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:27" (2/3) ... [2024-10-31 22:01:28,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72bebd77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:01:28, skipping insertion in model container [2024-10-31 22:01:28,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:28" (3/3) ... [2024-10-31 22:01:28,610 INFO L112 eAbstractionObserver]: Analyzing ICFG b.10-alloca.i [2024-10-31 22:01:28,630 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:01:28,630 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2024-10-31 22:01:28,681 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:01:28,704 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;@19bb43cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:01:28,705 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-10-31 22:01:28,709 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 41 states have (on average 2.097560975609756) internal successors, (86), 78 states have internal predecessors, (86), 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 22:01:28,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-31 22:01:28,717 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:28,718 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-31 22:01:28,719 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2024-10-31 22:01:28,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:28,725 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2024-10-31 22:01:28,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:28,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131717667] [2024-10-31 22:01:28,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:28,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:29,191 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 22:01:29,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:29,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131717667] [2024-10-31 22:01:29,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131717667] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:29,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:29,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:01:29,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96192759] [2024-10-31 22:01:29,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:29,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:01:29,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:29,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:01:29,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:29,237 INFO L87 Difference]: Start difference. First operand has 79 states, 41 states have (on average 2.097560975609756) internal successors, (86), 78 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) 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 22:01:29,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:29,354 INFO L93 Difference]: Finished difference Result 70 states and 76 transitions. [2024-10-31 22:01:29,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:01:29,357 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 22:01:29,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:29,367 INFO L225 Difference]: With dead ends: 70 [2024-10-31 22:01:29,368 INFO L226 Difference]: Without dead ends: 68 [2024-10-31 22:01:29,370 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 22:01:29,373 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 60 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:29,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 40 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:01:29,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-10-31 22:01:29,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-10-31 22:01:29,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 40 states have (on average 1.85) internal successors, (74), 67 states have internal predecessors, (74), 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 22:01:29,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 74 transitions. [2024-10-31 22:01:29,417 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 74 transitions. Word has length 3 [2024-10-31 22:01:29,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:29,418 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 74 transitions. [2024-10-31 22:01:29,418 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 22:01:29,419 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 74 transitions. [2024-10-31 22:01:29,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-31 22:01:29,419 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:29,419 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-31 22:01:29,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:01:29,421 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2024-10-31 22:01:29,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:29,423 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-10-31 22:01:29,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:29,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995491465] [2024-10-31 22:01:29,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:29,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:29,724 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 22:01:29,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:29,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995491465] [2024-10-31 22:01:29,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995491465] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:29,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:29,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:01:29,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777143307] [2024-10-31 22:01:29,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:29,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:01:29,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:29,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:01:29,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:29,729 INFO L87 Difference]: Start difference. First operand 68 states and 74 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 22:01:29,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:29,819 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2024-10-31 22:01:29,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:01:29,821 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 22:01:29,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:29,822 INFO L225 Difference]: With dead ends: 59 [2024-10-31 22:01:29,822 INFO L226 Difference]: Without dead ends: 59 [2024-10-31 22:01:29,822 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 22:01:29,823 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 61 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:29,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 40 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:01:29,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-10-31 22:01:29,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-10-31 22:01:29,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 40 states have (on average 1.625) internal successors, (65), 58 states have internal predecessors, (65), 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 22:01:29,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2024-10-31 22:01:29,835 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 3 [2024-10-31 22:01:29,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:29,836 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2024-10-31 22:01:29,836 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 22:01:29,836 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2024-10-31 22:01:29,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-31 22:01:29,839 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:29,839 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-31 22:01:29,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:01:29,840 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2024-10-31 22:01:29,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:29,842 INFO L85 PathProgramCache]: Analyzing trace with hash 925543, now seen corresponding path program 1 times [2024-10-31 22:01:29,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:29,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637965727] [2024-10-31 22:01:29,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:29,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:29,938 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 22:01:29,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:29,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637965727] [2024-10-31 22:01:29,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637965727] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:29,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:29,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:01:29,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485116799] [2024-10-31 22:01:29,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:29,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:01:29,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:29,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:01:29,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:29,942 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 22:01:30,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:30,032 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2024-10-31 22:01:30,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:01:30,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-10-31 22:01:30,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:30,034 INFO L225 Difference]: With dead ends: 52 [2024-10-31 22:01:30,034 INFO L226 Difference]: Without dead ends: 52 [2024-10-31 22:01:30,035 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 22:01:30,036 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 45 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:30,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 30 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:01:30,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-10-31 22:01:30,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-10-31 22:01:30,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 40 states have (on average 1.45) internal successors, (58), 51 states have internal predecessors, (58), 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 22:01:30,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2024-10-31 22:01:30,044 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 4 [2024-10-31 22:01:30,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:30,045 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2024-10-31 22:01:30,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 22:01:30,046 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2024-10-31 22:01:30,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-31 22:01:30,046 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:30,046 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-31 22:01:30,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:01:30,047 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2024-10-31 22:01:30,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:30,048 INFO L85 PathProgramCache]: Analyzing trace with hash 925544, now seen corresponding path program 1 times [2024-10-31 22:01:30,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:30,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185960879] [2024-10-31 22:01:30,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:30,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:30,160 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 22:01:30,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:30,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185960879] [2024-10-31 22:01:30,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185960879] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:30,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:30,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:01:30,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936868977] [2024-10-31 22:01:30,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:30,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:01:30,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:30,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:01:30,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:30,164 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 22:01:30,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:30,217 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2024-10-31 22:01:30,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:01:30,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-10-31 22:01:30,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:30,219 INFO L225 Difference]: With dead ends: 45 [2024-10-31 22:01:30,219 INFO L226 Difference]: Without dead ends: 45 [2024-10-31 22:01:30,219 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 22:01:30,221 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 46 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:30,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 33 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:01:30,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-10-31 22:01:30,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-10-31 22:01:30,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 40 states have (on average 1.275) internal successors, (51), 44 states have internal predecessors, (51), 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 22:01:30,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2024-10-31 22:01:30,232 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 4 [2024-10-31 22:01:30,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:30,233 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2024-10-31 22:01:30,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 22:01:30,233 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2024-10-31 22:01:30,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-31 22:01:30,234 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:30,234 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 22:01:30,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:01:30,234 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2024-10-31 22:01:30,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:30,236 INFO L85 PathProgramCache]: Analyzing trace with hash 28691812, now seen corresponding path program 1 times [2024-10-31 22:01:30,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:30,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496887581] [2024-10-31 22:01:30,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:30,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:30,315 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 22:01:30,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:30,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496887581] [2024-10-31 22:01:30,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496887581] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:30,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:30,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:01:30,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834953809] [2024-10-31 22:01:30,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:30,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:01:30,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:30,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:01:30,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:30,318 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 22:01:30,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:30,381 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2024-10-31 22:01:30,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:01:30,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2024-10-31 22:01:30,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:30,383 INFO L225 Difference]: With dead ends: 43 [2024-10-31 22:01:30,383 INFO L226 Difference]: Without dead ends: 43 [2024-10-31 22:01:30,383 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 22:01:30,386 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 39 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:30,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 29 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:01:30,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-31 22:01:30,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-10-31 22:01:30,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 40 states have (on average 1.225) internal successors, (49), 42 states have internal predecessors, (49), 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 22:01:30,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2024-10-31 22:01:30,398 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 5 [2024-10-31 22:01:30,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:30,398 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2024-10-31 22:01:30,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 22:01:30,399 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2024-10-31 22:01:30,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-31 22:01:30,399 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:30,399 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 22:01:30,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:01:30,399 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2024-10-31 22:01:30,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:30,400 INFO L85 PathProgramCache]: Analyzing trace with hash 28691813, now seen corresponding path program 1 times [2024-10-31 22:01:30,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:30,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971013989] [2024-10-31 22:01:30,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:30,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:30,502 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 22:01:30,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:30,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971013989] [2024-10-31 22:01:30,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971013989] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:30,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:30,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:01:30,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483255693] [2024-10-31 22:01:30,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:30,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:01:30,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:30,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:01:30,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:30,510 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 22:01:30,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:30,555 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2024-10-31 22:01:30,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:01:30,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2024-10-31 22:01:30,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:30,564 INFO L225 Difference]: With dead ends: 41 [2024-10-31 22:01:30,566 INFO L226 Difference]: Without dead ends: 41 [2024-10-31 22:01:30,570 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 22:01:30,572 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 39 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:30,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 32 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:01:30,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-10-31 22:01:30,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-10-31 22:01:30,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.175) internal successors, (47), 40 states have internal predecessors, (47), 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 22:01:30,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2024-10-31 22:01:30,576 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 5 [2024-10-31 22:01:30,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:30,576 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2024-10-31 22:01:30,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 22:01:30,580 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2024-10-31 22:01:30,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-31 22:01:30,580 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:30,581 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:30,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:01:30,581 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2024-10-31 22:01:30,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:30,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1871814777, now seen corresponding path program 1 times [2024-10-31 22:01:30,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:30,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138079642] [2024-10-31 22:01:30,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:30,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:30,744 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 22:01:30,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:30,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138079642] [2024-10-31 22:01:30,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138079642] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:30,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:30,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:01:30,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285989590] [2024-10-31 22:01:30,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:30,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:01:30,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:30,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:01:30,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:01:30,749 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 22:01:30,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:30,787 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2024-10-31 22:01:30,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:01:30,788 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2024-10-31 22:01:30,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:30,789 INFO L225 Difference]: With dead ends: 43 [2024-10-31 22:01:30,789 INFO L226 Difference]: Without dead ends: 43 [2024-10-31 22:01:30,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 22:01:30,791 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:30,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:01:30,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-31 22:01:30,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-10-31 22:01:30,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 42 states have internal predecessors, (49), 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 22:01:30,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2024-10-31 22:01:30,802 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 17 [2024-10-31 22:01:30,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:30,803 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2024-10-31 22:01:30,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 22:01:30,803 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2024-10-31 22:01:30,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-31 22:01:30,806 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:30,806 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 22:01:30,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:01:30,807 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2024-10-31 22:01:30,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:30,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1427152758, now seen corresponding path program 1 times [2024-10-31 22:01:30,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:30,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210761244] [2024-10-31 22:01:30,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:30,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:30,911 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 22:01:30,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:30,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210761244] [2024-10-31 22:01:30,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210761244] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:30,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:30,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:01:30,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30029228] [2024-10-31 22:01:30,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:30,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:01:30,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:30,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:01:30,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:01:30,917 INFO L87 Difference]: Start difference. First operand 43 states and 49 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 22:01:30,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:30,946 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2024-10-31 22:01:30,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:01:30,946 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 22:01:30,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:30,947 INFO L225 Difference]: With dead ends: 45 [2024-10-31 22:01:30,947 INFO L226 Difference]: Without dead ends: 45 [2024-10-31 22:01:30,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 22:01:30,948 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:30,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:01:30,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-10-31 22:01:30,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-10-31 22:01:30,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 44 states have internal predecessors, (51), 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 22:01:30,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2024-10-31 22:01:30,953 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 20 [2024-10-31 22:01:30,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:30,953 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2024-10-31 22:01:30,954 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 22:01:30,954 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2024-10-31 22:01:30,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-31 22:01:30,955 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:30,955 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] [2024-10-31 22:01:30,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:01:30,955 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2024-10-31 22:01:30,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:30,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1814683072, now seen corresponding path program 1 times [2024-10-31 22:01:30,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:30,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631257880] [2024-10-31 22:01:30,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:30,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:31,220 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 22:01:31,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:31,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631257880] [2024-10-31 22:01:31,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631257880] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:31,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:31,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:01:31,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477160081] [2024-10-31 22:01:31,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:31,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:01:31,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:31,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:01:31,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:01:31,223 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 22:01:31,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:31,384 INFO L93 Difference]: Finished difference Result 80 states and 92 transitions. [2024-10-31 22:01:31,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:01:31,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 21 [2024-10-31 22:01:31,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:31,386 INFO L225 Difference]: With dead ends: 80 [2024-10-31 22:01:31,386 INFO L226 Difference]: Without dead ends: 80 [2024-10-31 22:01:31,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:01:31,387 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 67 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:31,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 253 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:01:31,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-10-31 22:01:31,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 75. [2024-10-31 22:01:31,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.1756756756756757) internal successors, (87), 74 states have internal predecessors, (87), 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 22:01:31,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 87 transitions. [2024-10-31 22:01:31,397 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 87 transitions. Word has length 21 [2024-10-31 22:01:31,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:31,398 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 87 transitions. [2024-10-31 22:01:31,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 22:01:31,398 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 87 transitions. [2024-10-31 22:01:31,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-31 22:01:31,399 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:31,399 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] [2024-10-31 22:01:31,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:01:31,399 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2024-10-31 22:01:31,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:31,402 INFO L85 PathProgramCache]: Analyzing trace with hash 843563454, now seen corresponding path program 1 times [2024-10-31 22:01:31,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:31,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942876825] [2024-10-31 22:01:31,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:31,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:31,830 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 22:01:31,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:31,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942876825] [2024-10-31 22:01:31,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942876825] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:31,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:31,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:01:31,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36227435] [2024-10-31 22:01:31,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:31,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:01:31,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:31,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:01:31,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:01:31,832 INFO L87 Difference]: Start difference. First operand 75 states and 87 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 22:01:31,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:31,947 INFO L93 Difference]: Finished difference Result 74 states and 86 transitions. [2024-10-31 22:01:31,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:01:31,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 23 [2024-10-31 22:01:31,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:31,952 INFO L225 Difference]: With dead ends: 74 [2024-10-31 22:01:31,952 INFO L226 Difference]: Without dead ends: 0 [2024-10-31 22:01:31,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 22:01:31,953 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 24 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:31,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 51 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:01:31,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-31 22:01:31,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-31 22:01:31,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:31,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-31 22:01:31,955 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2024-10-31 22:01:31,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:31,955 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:01:31,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 22:01:31,955 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:01:31,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-31 22:01:31,965 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 37 remaining) [2024-10-31 22:01:31,966 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 37 remaining) [2024-10-31 22:01:31,966 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 37 remaining) [2024-10-31 22:01:31,966 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 37 remaining) [2024-10-31 22:01:31,967 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 37 remaining) [2024-10-31 22:01:31,967 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 37 remaining) [2024-10-31 22:01:31,967 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 37 remaining) [2024-10-31 22:01:31,967 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 37 remaining) [2024-10-31 22:01:31,967 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 37 remaining) [2024-10-31 22:01:31,967 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 37 remaining) [2024-10-31 22:01:31,967 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 37 remaining) [2024-10-31 22:01:31,968 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 37 remaining) [2024-10-31 22:01:31,968 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 37 remaining) [2024-10-31 22:01:31,968 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 37 remaining) [2024-10-31 22:01:31,968 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 37 remaining) [2024-10-31 22:01:31,968 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 37 remaining) [2024-10-31 22:01:31,968 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 37 remaining) [2024-10-31 22:01:31,968 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 37 remaining) [2024-10-31 22:01:31,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 37 remaining) [2024-10-31 22:01:31,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 37 remaining) [2024-10-31 22:01:31,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 37 remaining) [2024-10-31 22:01:31,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 37 remaining) [2024-10-31 22:01:31,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 37 remaining) [2024-10-31 22:01:31,986 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 37 remaining) [2024-10-31 22:01:31,987 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 37 remaining) [2024-10-31 22:01:31,987 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 37 remaining) [2024-10-31 22:01:31,987 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 37 remaining) [2024-10-31 22:01:31,988 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 37 remaining) [2024-10-31 22:01:31,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 37 remaining) [2024-10-31 22:01:31,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 37 remaining) [2024-10-31 22:01:31,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 37 remaining) [2024-10-31 22:01:31,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 37 remaining) [2024-10-31 22:01:31,999 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 37 remaining) [2024-10-31 22:01:32,000 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 37 remaining) [2024-10-31 22:01:32,000 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 37 remaining) [2024-10-31 22:01:32,000 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 37 remaining) [2024-10-31 22:01:32,000 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK (0 of 37 remaining) [2024-10-31 22:01:32,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:01:32,010 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:32,017 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:01:32,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:01:32 BoogieIcfgContainer [2024-10-31 22:01:32,026 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:01:32,027 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:01:32,027 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:01:32,027 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:01:32,027 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:28" (3/4) ... [2024-10-31 22:01:32,030 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 22:01:32,043 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-10-31 22:01:32,044 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-31 22:01:32,044 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-31 22:01:32,044 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 22:01:32,165 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a725e9c9-ec74-4bf4-a1c7-a023e4564c07/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:01:32,165 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a725e9c9-ec74-4bf4-a1c7-a023e4564c07/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 22:01:32,166 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:01:32,166 INFO L158 Benchmark]: Toolchain (without parser) took 4827.73ms. Allocated memory was 144.7MB in the beginning and 182.5MB in the end (delta: 37.7MB). Free memory was 113.0MB in the beginning and 120.7MB in the end (delta: -7.7MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2024-10-31 22:01:32,167 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 100.7MB. Free memory is still 57.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:01:32,167 INFO L158 Benchmark]: CACSL2BoogieTranslator took 554.06ms. Allocated memory is still 144.7MB. Free memory was 113.0MB in the beginning and 94.6MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-31 22:01:32,167 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.84ms. Allocated memory is still 144.7MB. Free memory was 94.6MB in the beginning and 93.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:01:32,167 INFO L158 Benchmark]: Boogie Preprocessor took 63.19ms. Allocated memory is still 144.7MB. Free memory was 93.0MB in the beginning and 90.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:01:32,168 INFO L158 Benchmark]: RCFGBuilder took 581.94ms. Allocated memory is still 144.7MB. Free memory was 90.4MB in the beginning and 70.6MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-31 22:01:32,168 INFO L158 Benchmark]: TraceAbstraction took 3425.20ms. Allocated memory was 144.7MB in the beginning and 182.5MB in the end (delta: 37.7MB). Free memory was 70.1MB in the beginning and 125.9MB in the end (delta: -55.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:01:32,168 INFO L158 Benchmark]: Witness Printer took 139.17ms. Allocated memory is still 182.5MB. Free memory was 125.9MB in the beginning and 120.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:01:32,170 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 100.7MB. Free memory is still 57.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 554.06ms. Allocated memory is still 144.7MB. Free memory was 113.0MB in the beginning and 94.6MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.84ms. Allocated memory is still 144.7MB. Free memory was 94.6MB in the beginning and 93.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 63.19ms. Allocated memory is still 144.7MB. Free memory was 93.0MB in the beginning and 90.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 581.94ms. Allocated memory is still 144.7MB. Free memory was 90.4MB in the beginning and 70.6MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3425.20ms. Allocated memory was 144.7MB in the beginning and 182.5MB in the end (delta: 37.7MB). Free memory was 70.1MB in the beginning and 125.9MB in the end (delta: -55.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 139.17ms. Allocated memory is still 182.5MB. Free memory was 125.9MB in the beginning and 120.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 79 locations, 37 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 381 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 381 mSDsluCounter, 749 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 372 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 372 IncrementalHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 377 mSDtfsCounter, 372 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=0, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 671 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 37 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-31 22:01:32,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a725e9c9-ec74-4bf4-a1c7-a023e4564c07/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE