./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0879880-d30b-4406-90a9-30f08419cb70/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0879880-d30b-4406-90a9-30f08419cb70/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_b0879880-d30b-4406-90a9-30f08419cb70/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0879880-d30b-4406-90a9-30f08419cb70/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0879880-d30b-4406-90a9-30f08419cb70/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0879880-d30b-4406-90a9-30f08419cb70/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f54335276b565c52e40eef6a3f78ed9d794347e65877e7f862e4de86bcdea73 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:02:52,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:02:52,434 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0879880-d30b-4406-90a9-30f08419cb70/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:02:52,441 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:02:52,441 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:02:52,478 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:02:52,480 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:02:52,481 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:02:52,482 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:02:52,484 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:02:52,485 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:02:52,485 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:02:52,486 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:02:52,487 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:02:52,489 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:02:52,490 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:02:52,490 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:02:52,490 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:02:52,491 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:02:52,495 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:02:52,496 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:02:52,496 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:02:52,497 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:02:52,497 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:02:52,497 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:02:52,498 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:02:52,498 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:02:52,498 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:02:52,499 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:02:52,499 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:02:52,501 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:02:52,502 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:02:52,502 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:02:52,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:02:52,503 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:02:52,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:02:52,504 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:02:52,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:02:52,505 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:02:52,505 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:02:52,505 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:02:52,506 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:02:52,506 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_b0879880-d30b-4406-90a9-30f08419cb70/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0879880-d30b-4406-90a9-30f08419cb70/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f54335276b565c52e40eef6a3f78ed9d794347e65877e7f862e4de86bcdea73 [2024-10-31 22:02:52,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:02:52,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:02:52,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:02:52,915 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:02:52,918 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:02:52,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0879880-d30b-4406-90a9-30f08419cb70/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i Unable to find full path for "g++" [2024-10-31 22:02:54,858 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:02:55,275 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:02:55,276 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0879880-d30b-4406-90a9-30f08419cb70/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i [2024-10-31 22:02:55,304 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0879880-d30b-4406-90a9-30f08419cb70/bin/uautomizer-verify-4GaUIPS5ZU/data/f195b2194/fbf77ff9205b41309b3849a2af4e8ad2/FLAG527f98569 [2024-10-31 22:02:55,341 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0879880-d30b-4406-90a9-30f08419cb70/bin/uautomizer-verify-4GaUIPS5ZU/data/f195b2194/fbf77ff9205b41309b3849a2af4e8ad2 [2024-10-31 22:02:55,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:02:55,347 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:02:55,349 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:02:55,350 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:02:55,356 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:02:55,357 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:02:55" (1/1) ... [2024-10-31 22:02:55,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f592bbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:55, skipping insertion in model container [2024-10-31 22:02:55,360 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:02:55" (1/1) ... [2024-10-31 22:02:55,444 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:02:56,251 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:02:56,278 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:02:56,282 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:02:56,287 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:02:56,298 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:02:56,344 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:02:56,345 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:02:56,348 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:02:56,349 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:02:56,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:02:56,368 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:02:56,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:02:56,636 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:02:56,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:56 WrapperNode [2024-10-31 22:02:56,637 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:02:56,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:02:56,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:02:56,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:02:56,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:56" (1/1) ... [2024-10-31 22:02:56,704 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:56" (1/1) ... [2024-10-31 22:02:56,885 INFO L138 Inliner]: procedures = 177, calls = 724, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3292 [2024-10-31 22:02:56,885 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:02:56,886 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:02:56,886 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:02:56,886 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:02:56,903 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:56" (1/1) ... [2024-10-31 22:02:56,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:56" (1/1) ... [2024-10-31 22:02:56,923 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:56" (1/1) ... [2024-10-31 22:02:57,014 INFO L175 MemorySlicer]: Split 208 memory accesses to 3 slices as follows [2, 34, 172]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 4, 42]. [2024-10-31 22:02:57,014 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:56" (1/1) ... [2024-10-31 22:02:57,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:56" (1/1) ... [2024-10-31 22:02:57,077 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:56" (1/1) ... [2024-10-31 22:02:57,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:56" (1/1) ... [2024-10-31 22:02:57,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:56" (1/1) ... [2024-10-31 22:02:57,121 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:56" (1/1) ... [2024-10-31 22:02:57,141 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:02:57,142 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:02:57,143 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:02:57,143 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:02:57,144 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:56" (1/1) ... [2024-10-31 22:02:57,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:02:57,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0879880-d30b-4406-90a9-30f08419cb70/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:57,179 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0879880-d30b-4406-90a9-30f08419cb70/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:57,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0879880-d30b-4406-90a9-30f08419cb70/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:02:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-31 22:02:57,217 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-31 22:02:57,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:02:57,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:02:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:02:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-31 22:02:57,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-31 22:02:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:02:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:02:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:02:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-31 22:02:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-31 22:02:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-10-31 22:02:57,220 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-31 22:02:57,220 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-31 22:02:57,220 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-10-31 22:02:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:02:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:02:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:02:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:02:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 22:02:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:02:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 22:02:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-31 22:02:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-31 22:02:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:02:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:02:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:02:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:02:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:02:57,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:02:57,456 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:02:57,459 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:02:57,486 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-31 22:02:57,525 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-31 22:02:57,543 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-31 22:03:01,959 INFO L? ?]: Removed 1537 outVars from TransFormulas that were not future-live. [2024-10-31 22:03:01,960 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:03:02,023 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:03:02,023 INFO L316 CfgBuilder]: Removed 54 assume(true) statements. [2024-10-31 22:03:02,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:02 BoogieIcfgContainer [2024-10-31 22:03:02,024 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:03:02,028 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:03:02,029 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:03:02,032 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:03:02,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:02:55" (1/3) ... [2024-10-31 22:03:02,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eafd7f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:02, skipping insertion in model container [2024-10-31 22:03:02,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:56" (2/3) ... [2024-10-31 22:03:02,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eafd7f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:02, skipping insertion in model container [2024-10-31 22:03:02,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:02" (3/3) ... [2024-10-31 22:03:02,037 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test9-1.i [2024-10-31 22:03:02,056 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:03:02,057 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 424 error locations. [2024-10-31 22:03:02,159 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:03:02,167 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;@672f803d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:03:02,168 INFO L334 AbstractCegarLoop]: Starting to check reachability of 424 error locations. [2024-10-31 22:03:02,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 2066 states, 1136 states have (on average 2.007042253521127) internal successors, (2280), 2059 states have internal predecessors, (2280), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2024-10-31 22:03:02,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-31 22:03:02,193 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:02,194 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-31 22:03:02,195 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-31 22:03:02,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:02,201 INFO L85 PathProgramCache]: Analyzing trace with hash 65605, now seen corresponding path program 1 times [2024-10-31 22:03:02,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:02,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354886958] [2024-10-31 22:03:02,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:02,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:02,446 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 22:03:02,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:02,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354886958] [2024-10-31 22:03:02,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354886958] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:02,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:02,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:03:02,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228418017] [2024-10-31 22:03:02,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:02,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:02,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:02,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:02,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:02,502 INFO L87 Difference]: Start difference. First operand has 2066 states, 1136 states have (on average 2.007042253521127) internal successors, (2280), 2059 states have internal predecessors, (2280), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:04,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:04,309 INFO L93 Difference]: Finished difference Result 2052 states and 3216 transitions. [2024-10-31 22:03:04,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:04,312 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 22:03:04,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:04,348 INFO L225 Difference]: With dead ends: 2052 [2024-10-31 22:03:04,348 INFO L226 Difference]: Without dead ends: 2050 [2024-10-31 22:03:04,350 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 22:03:04,353 INFO L432 NwaCegarLoop]: 2827 mSDtfsCounter, 2091 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2594 SdHoareTripleChecker+Valid, 2879 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:04,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2594 Valid, 2879 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-31 22:03:04,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2024-10-31 22:03:04,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 2050. [2024-10-31 22:03:04,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2050 states, 1138 states have (on average 1.9384885764499122) internal successors, (2206), 2043 states have internal predecessors, (2206), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-10-31 22:03:04,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 3214 transitions. [2024-10-31 22:03:04,868 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 3214 transitions. Word has length 3 [2024-10-31 22:03:04,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:04,869 INFO L471 AbstractCegarLoop]: Abstraction has 2050 states and 3214 transitions. [2024-10-31 22:03:04,869 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 22:03:04,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 3214 transitions. [2024-10-31 22:03:04,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-31 22:03:04,870 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:04,870 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-31 22:03:04,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:03:04,871 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-31 22:03:04,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:04,872 INFO L85 PathProgramCache]: Analyzing trace with hash 65606, now seen corresponding path program 1 times [2024-10-31 22:03:04,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:04,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46307965] [2024-10-31 22:03:04,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:04,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:04,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:05,034 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 22:03:05,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:05,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46307965] [2024-10-31 22:03:05,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46307965] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:05,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:05,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:03:05,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740979315] [2024-10-31 22:03:05,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:05,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:05,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:05,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:05,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:05,043 INFO L87 Difference]: Start difference. First operand 2050 states and 3214 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:07,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:07,171 INFO L93 Difference]: Finished difference Result 3814 states and 6130 transitions. [2024-10-31 22:03:07,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:07,172 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 22:03:07,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:07,193 INFO L225 Difference]: With dead ends: 3814 [2024-10-31 22:03:07,194 INFO L226 Difference]: Without dead ends: 3814 [2024-10-31 22:03:07,195 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 22:03:07,197 INFO L432 NwaCegarLoop]: 2929 mSDtfsCounter, 1908 mSDsluCounter, 2280 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2410 SdHoareTripleChecker+Valid, 5209 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:07,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2410 Valid, 5209 Invalid, 1211 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-31 22:03:07,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3814 states. [2024-10-31 22:03:07,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3814 to 3550. [2024-10-31 22:03:07,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 2139 states have (on average 1.9205236091631603) internal successors, (4108), 3541 states have internal predecessors, (4108), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-10-31 22:03:07,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 6120 transitions. [2024-10-31 22:03:07,679 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 6120 transitions. Word has length 3 [2024-10-31 22:03:07,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:07,679 INFO L471 AbstractCegarLoop]: Abstraction has 3550 states and 6120 transitions. [2024-10-31 22:03:07,680 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 22:03:07,680 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 6120 transitions. [2024-10-31 22:03:07,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-31 22:03:07,681 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:07,681 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:07,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:03:07,681 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-31 22:03:07,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:07,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1329278099, now seen corresponding path program 1 times [2024-10-31 22:03:07,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:07,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929471299] [2024-10-31 22:03:07,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:07,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:07,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:07,852 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 22:03:07,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:07,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929471299] [2024-10-31 22:03:07,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929471299] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:07,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:07,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:03:07,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270201016] [2024-10-31 22:03:07,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:07,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:07,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:07,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:07,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:07,857 INFO L87 Difference]: Start difference. First operand 3550 states and 6120 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:10,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:10,015 INFO L93 Difference]: Finished difference Result 6220 states and 11072 transitions. [2024-10-31 22:03:10,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:10,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-31 22:03:10,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:10,054 INFO L225 Difference]: With dead ends: 6220 [2024-10-31 22:03:10,054 INFO L226 Difference]: Without dead ends: 6220 [2024-10-31 22:03:10,055 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 22:03:10,058 INFO L432 NwaCegarLoop]: 5189 mSDtfsCounter, 1816 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 7679 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:10,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 7679 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-31 22:03:10,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6220 states. [2024-10-31 22:03:10,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6220 to 3618. [2024-10-31 22:03:10,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 2217 states have (on average 1.9174560216508796) internal successors, (4251), 3609 states have internal predecessors, (4251), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-10-31 22:03:10,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 6263 transitions. [2024-10-31 22:03:10,772 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 6263 transitions. Word has length 8 [2024-10-31 22:03:10,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:10,773 INFO L471 AbstractCegarLoop]: Abstraction has 3618 states and 6263 transitions. [2024-10-31 22:03:10,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:10,773 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 6263 transitions. [2024-10-31 22:03:10,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-31 22:03:10,774 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:10,774 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:10,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:03:10,775 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-31 22:03:10,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:10,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1329278098, now seen corresponding path program 1 times [2024-10-31 22:03:10,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:10,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356535317] [2024-10-31 22:03:10,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:10,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:10,878 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 22:03:10,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:10,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356535317] [2024-10-31 22:03:10,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356535317] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:10,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:10,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:03:10,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260150356] [2024-10-31 22:03:10,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:10,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:10,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:10,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:10,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:10,881 INFO L87 Difference]: Start difference. First operand 3618 states and 6263 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:12,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:12,567 INFO L93 Difference]: Finished difference Result 4881 states and 8573 transitions. [2024-10-31 22:03:12,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:12,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-31 22:03:12,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:12,593 INFO L225 Difference]: With dead ends: 4881 [2024-10-31 22:03:12,593 INFO L226 Difference]: Without dead ends: 4881 [2024-10-31 22:03:12,594 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 22:03:12,595 INFO L432 NwaCegarLoop]: 5027 mSDtfsCounter, 2076 mSDsluCounter, 2305 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2579 SdHoareTripleChecker+Valid, 7332 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:12,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2579 Valid, 7332 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-31 22:03:12,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4881 states. [2024-10-31 22:03:13,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4881 to 3571. [2024-10-31 22:03:13,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3571 states, 2217 states have (on average 1.8822733423545333) internal successors, (4173), 3562 states have internal predecessors, (4173), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-10-31 22:03:13,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3571 states to 3571 states and 6185 transitions. [2024-10-31 22:03:13,129 INFO L78 Accepts]: Start accepts. Automaton has 3571 states and 6185 transitions. Word has length 8 [2024-10-31 22:03:13,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:13,129 INFO L471 AbstractCegarLoop]: Abstraction has 3571 states and 6185 transitions. [2024-10-31 22:03:13,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:13,130 INFO L276 IsEmpty]: Start isEmpty. Operand 3571 states and 6185 transitions. [2024-10-31 22:03:13,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-31 22:03:13,130 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:13,130 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:13,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:03:13,131 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr422ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-31 22:03:13,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:13,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1321452160, now seen corresponding path program 1 times [2024-10-31 22:03:13,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:13,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541156522] [2024-10-31 22:03:13,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:13,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:13,266 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 22:03:13,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:13,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541156522] [2024-10-31 22:03:13,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541156522] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:13,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:13,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:03:13,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361158559] [2024-10-31 22:03:13,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:13,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:03:13,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:13,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:03:13,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:03:13,271 INFO L87 Difference]: Start difference. First operand 3571 states and 6185 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:14,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:14,369 INFO L93 Difference]: Finished difference Result 6790 states and 11777 transitions. [2024-10-31 22:03:14,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:03:14,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-31 22:03:14,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:14,414 INFO L225 Difference]: With dead ends: 6790 [2024-10-31 22:03:14,415 INFO L226 Difference]: Without dead ends: 6790 [2024-10-31 22:03:14,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:03:14,416 INFO L432 NwaCegarLoop]: 3407 mSDtfsCounter, 2105 mSDsluCounter, 5997 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2608 SdHoareTripleChecker+Valid, 9404 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:14,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2608 Valid, 9404 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-31 22:03:14,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6790 states. [2024-10-31 22:03:14,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6790 to 3573. [2024-10-31 22:03:14,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3573 states, 2219 states have (on average 1.8814781433077963) internal successors, (4175), 3564 states have internal predecessors, (4175), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-10-31 22:03:14,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3573 states to 3573 states and 6187 transitions. [2024-10-31 22:03:14,964 INFO L78 Accepts]: Start accepts. Automaton has 3573 states and 6187 transitions. Word has length 10 [2024-10-31 22:03:14,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:14,964 INFO L471 AbstractCegarLoop]: Abstraction has 3573 states and 6187 transitions. [2024-10-31 22:03:14,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:14,965 INFO L276 IsEmpty]: Start isEmpty. Operand 3573 states and 6187 transitions. [2024-10-31 22:03:14,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-31 22:03:14,965 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:14,966 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:14,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:03:14,966 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-31 22:03:14,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:14,967 INFO L85 PathProgramCache]: Analyzing trace with hash 183846334, now seen corresponding path program 1 times [2024-10-31 22:03:14,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:14,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620025026] [2024-10-31 22:03:14,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:14,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:15,071 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 22:03:15,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:15,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620025026] [2024-10-31 22:03:15,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620025026] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:15,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:15,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:03:15,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512977884] [2024-10-31 22:03:15,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:15,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:03:15,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:15,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:03:15,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:03:15,074 INFO L87 Difference]: Start difference. First operand 3573 states and 6187 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:18,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:18,285 INFO L93 Difference]: Finished difference Result 3648 states and 6293 transitions. [2024-10-31 22:03:18,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:03:18,285 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-10-31 22:03:18,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:18,297 INFO L225 Difference]: With dead ends: 3648 [2024-10-31 22:03:18,297 INFO L226 Difference]: Without dead ends: 3648 [2024-10-31 22:03:18,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:03:18,298 INFO L432 NwaCegarLoop]: 2728 mSDtfsCounter, 2341 mSDsluCounter, 1600 mSDsCounter, 0 mSdLazyCounter, 2340 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2844 SdHoareTripleChecker+Valid, 4328 SdHoareTripleChecker+Invalid, 2368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:18,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2844 Valid, 4328 Invalid, 2368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2340 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-10-31 22:03:18,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3648 states. [2024-10-31 22:03:18,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3648 to 3550. [2024-10-31 22:03:18,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 2219 states have (on average 1.8607480847228481) internal successors, (4129), 3541 states have internal predecessors, (4129), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-10-31 22:03:18,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 6141 transitions. [2024-10-31 22:03:18,665 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 6141 transitions. Word has length 18 [2024-10-31 22:03:18,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:18,665 INFO L471 AbstractCegarLoop]: Abstraction has 3550 states and 6141 transitions. [2024-10-31 22:03:18,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:18,666 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 6141 transitions. [2024-10-31 22:03:18,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-31 22:03:18,667 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:18,667 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:18,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:03:18,667 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-31 22:03:18,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:18,669 INFO L85 PathProgramCache]: Analyzing trace with hash 183846335, now seen corresponding path program 1 times [2024-10-31 22:03:18,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:18,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283097886] [2024-10-31 22:03:18,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:18,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:18,751 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 22:03:18,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:18,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283097886] [2024-10-31 22:03:18,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283097886] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:18,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:18,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:03:18,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197717945] [2024-10-31 22:03:18,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:18,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:18,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:18,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:18,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:18,754 INFO L87 Difference]: Start difference. First operand 3550 states and 6141 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:18,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:18,815 INFO L93 Difference]: Finished difference Result 3412 states and 5935 transitions. [2024-10-31 22:03:18,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:18,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-10-31 22:03:18,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:18,838 INFO L225 Difference]: With dead ends: 3412 [2024-10-31 22:03:18,839 INFO L226 Difference]: Without dead ends: 3412 [2024-10-31 22:03:18,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:18,842 INFO L432 NwaCegarLoop]: 3009 mSDtfsCounter, 61 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 5965 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:18,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 5965 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:03:18,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3412 states. [2024-10-31 22:03:19,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3412 to 3412. [2024-10-31 22:03:19,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 2093 states have (on average 1.8743430482560917) internal successors, (3923), 3403 states have internal predecessors, (3923), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-10-31 22:03:19,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 5935 transitions. [2024-10-31 22:03:19,200 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 5935 transitions. Word has length 18 [2024-10-31 22:03:19,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:19,200 INFO L471 AbstractCegarLoop]: Abstraction has 3412 states and 5935 transitions. [2024-10-31 22:03:19,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:19,201 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 5935 transitions. [2024-10-31 22:03:19,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-31 22:03:19,201 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:19,202 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 22:03:19,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:03:19,202 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-31 22:03:19,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:19,203 INFO L85 PathProgramCache]: Analyzing trace with hash 582825947, now seen corresponding path program 1 times [2024-10-31 22:03:19,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:19,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734352339] [2024-10-31 22:03:19,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:19,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:19,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:19,267 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 22:03:19,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:19,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734352339] [2024-10-31 22:03:19,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734352339] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:19,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:19,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:03:19,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462663905] [2024-10-31 22:03:19,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:19,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:03:19,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:19,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:03:19,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:03:19,270 INFO L87 Difference]: Start difference. First operand 3412 states and 5935 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:19,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:19,413 INFO L93 Difference]: Finished difference Result 3383 states and 5885 transitions. [2024-10-31 22:03:19,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:03:19,414 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 22:03:19,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:19,460 INFO L225 Difference]: With dead ends: 3383 [2024-10-31 22:03:19,461 INFO L226 Difference]: Without dead ends: 3383 [2024-10-31 22:03:19,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:03:19,462 INFO L432 NwaCegarLoop]: 2974 mSDtfsCounter, 41 mSDsluCounter, 5920 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 8894 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:19,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 8894 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:03:19,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3383 states. [2024-10-31 22:03:19,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3383 to 3377. [2024-10-31 22:03:19,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3377 states, 2065 states have (on average 1.872639225181598) internal successors, (3867), 3368 states have internal predecessors, (3867), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-10-31 22:03:19,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3377 states to 3377 states and 5879 transitions. [2024-10-31 22:03:19,945 INFO L78 Accepts]: Start accepts. Automaton has 3377 states and 5879 transitions. Word has length 20 [2024-10-31 22:03:19,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:19,945 INFO L471 AbstractCegarLoop]: Abstraction has 3377 states and 5879 transitions. [2024-10-31 22:03:19,946 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 22:03:19,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3377 states and 5879 transitions. [2024-10-31 22:03:19,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-31 22:03:19,946 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:19,947 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:19,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:03:19,947 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-31 22:03:19,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:19,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1292750889, now seen corresponding path program 1 times [2024-10-31 22:03:19,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:19,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532393130] [2024-10-31 22:03:19,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:19,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:20,139 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 22:03:20,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:20,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532393130] [2024-10-31 22:03:20,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532393130] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:20,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:20,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:03:20,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433811949] [2024-10-31 22:03:20,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:20,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:03:20,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:20,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:03:20,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:03:20,146 INFO L87 Difference]: Start difference. First operand 3377 states and 5879 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)