./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB --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 6698dfe763688c38a478c53cfe3bc6bac092e445bf13ef44be53eb6068218c93 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:35:06,132 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:35:06,258 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-27 23:35:06,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:35:06,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:35:06,299 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:35:06,300 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:35:06,300 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:35:06,301 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:35:06,301 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:35:06,302 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:35:06,302 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:35:06,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:35:06,303 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:35:06,304 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:35:06,304 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:35:06,304 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:35:06,304 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:35:06,304 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:35:06,305 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:35:06,305 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-27 23:35:06,305 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-27 23:35:06,305 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-27 23:35:06,305 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:35:06,305 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 23:35:06,305 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:35:06,305 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:35:06,305 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:35:06,305 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:35:06,305 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:35:06,306 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:35:06,306 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:35:06,306 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:35:06,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:35:06,306 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:35:06,306 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:35:06,306 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:35:06,306 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:35:06,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:35:06,306 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:35:06,306 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:35:06,307 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:35:06,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:35:06,307 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:35:06,307 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:35:06,307 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:35:06,307 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:35:06,307 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 6698dfe763688c38a478c53cfe3bc6bac092e445bf13ef44be53eb6068218c93 [2024-11-27 23:35:06,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:35:06,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:35:06,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:35:06,707 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:35:06,707 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:35:06,709 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i [2024-11-27 23:35:10,446 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/data/f394b38bd/dddf9d4ea91b4d4f9babc0e4e61b8885/FLAG620d44fef [2024-11-27 23:35:11,073 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:35:11,075 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i [2024-11-27 23:35:11,114 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/data/f394b38bd/dddf9d4ea91b4d4f9babc0e4e61b8885/FLAG620d44fef [2024-11-27 23:35:11,135 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/data/f394b38bd/dddf9d4ea91b4d4f9babc0e4e61b8885 [2024-11-27 23:35:11,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:35:11,142 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:35:11,147 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:35:11,147 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:35:11,154 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:35:11,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:35:11" (1/1) ... [2024-11-27 23:35:11,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d2c7867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:11, skipping insertion in model container [2024-11-27 23:35:11,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:35:11" (1/1) ... [2024-11-27 23:35:11,268 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:35:12,160 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:35:12,190 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:35:12,195 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:35:12,200 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:35:12,208 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:35:12,270 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:35:12,270 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:35:12,274 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:35:12,275 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:35:12,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:35:12,308 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:35:12,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:35:12,736 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:35:12,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:12 WrapperNode [2024-11-27 23:35:12,737 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:35:12,738 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:35:12,738 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:35:12,738 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:35:12,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:12" (1/1) ... [2024-11-27 23:35:12,785 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:12" (1/1) ... [2024-11-27 23:35:12,978 INFO L138 Inliner]: procedures = 177, calls = 724, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3262 [2024-11-27 23:35:12,979 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:35:12,979 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:35:12,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:35:12,980 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:35:12,992 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:12" (1/1) ... [2024-11-27 23:35:12,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:12" (1/1) ... [2024-11-27 23:35:13,030 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:12" (1/1) ... [2024-11-27 23:35:13,148 INFO L175 MemorySlicer]: Split 208 memory accesses to 3 slices as follows [2, 172, 34]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 42, 4]. [2024-11-27 23:35:13,148 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:12" (1/1) ... [2024-11-27 23:35:13,149 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:12" (1/1) ... [2024-11-27 23:35:13,221 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:12" (1/1) ... [2024-11-27 23:35:13,228 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:12" (1/1) ... [2024-11-27 23:35:13,260 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:12" (1/1) ... [2024-11-27 23:35:13,273 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:12" (1/1) ... [2024-11-27 23:35:13,283 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:12" (1/1) ... [2024-11-27 23:35:13,316 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:35:13,318 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:35:13,319 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:35:13,319 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:35:13,323 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:12" (1/1) ... [2024-11-27 23:35:13,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:35:13,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:35:13,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:35:13,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:35:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-27 23:35:13,415 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-27 23:35:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 23:35:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 23:35:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-27 23:35:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 23:35:13,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 23:35:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 23:35:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 23:35:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-27 23:35:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-27 23:35:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-27 23:35:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-27 23:35:13,419 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-27 23:35:13,419 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-27 23:35:13,419 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-27 23:35:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 23:35:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:35:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 23:35:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 23:35:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-27 23:35:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 23:35:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 23:35:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 23:35:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-27 23:35:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 23:35:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:35:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 23:35:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 23:35:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:35:13,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:35:13,743 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:35:13,746 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:35:13,785 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-27 23:35:13,868 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-27 23:35:13,905 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-27 23:35:19,563 INFO L? ?]: Removed 1537 outVars from TransFormulas that were not future-live. [2024-11-27 23:35:19,564 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:35:19,646 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:35:19,647 INFO L312 CfgBuilder]: Removed 31 assume(true) statements. [2024-11-27 23:35:19,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:35:19 BoogieIcfgContainer [2024-11-27 23:35:19,647 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:35:19,651 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:35:19,654 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:35:19,665 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:35:19,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:35:11" (1/3) ... [2024-11-27 23:35:19,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e26cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:35:19, skipping insertion in model container [2024-11-27 23:35:19,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:35:12" (2/3) ... [2024-11-27 23:35:19,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e26cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:35:19, skipping insertion in model container [2024-11-27 23:35:19,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:35:19" (3/3) ... [2024-11-27 23:35:19,668 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_BER_test9-1.i [2024-11-27 23:35:19,692 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:35:19,698 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_test9-1.i that has 6 procedures, 2077 locations, 1 initial locations, 33 loop locations, and 424 error locations. [2024-11-27 23:35:19,817 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:35:19,836 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;@701ee26a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:35:19,836 INFO L334 AbstractCegarLoop]: Starting to check reachability of 424 error locations. [2024-11-27 23:35:19,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 2067 states, 1137 states have (on average 2.006156552330695) internal successors, (2281), 2060 states have internal predecessors, (2281), 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) [2024-11-27 23:35:19,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-27 23:35:19,861 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:19,862 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-27 23:35:19,862 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)] === [2024-11-27 23:35:19,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:19,870 INFO L85 PathProgramCache]: Analyzing trace with hash 65605, now seen corresponding path program 1 times [2024-11-27 23:35:19,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:35:19,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847460353] [2024-11-27 23:35:19,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:19,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:35:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:20,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:35:20,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:35:20,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847460353] [2024-11-27 23:35:20,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847460353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:20,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:35:20,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:35:20,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71212018] [2024-11-27 23:35:20,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:20,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:35:20,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:20,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:35:20,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:35:20,250 INFO L87 Difference]: Start difference. First operand has 2067 states, 1137 states have (on average 2.006156552330695) internal successors, (2281), 2060 states have internal predecessors, (2281), 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) [2024-11-27 23:35:22,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:22,525 INFO L93 Difference]: Finished difference Result 2053 states and 3217 transitions. [2024-11-27 23:35:22,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:35:22,531 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 [2024-11-27 23:35:22,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:22,594 INFO L225 Difference]: With dead ends: 2053 [2024-11-27 23:35:22,594 INFO L226 Difference]: Without dead ends: 2051 [2024-11-27 23:35:22,596 INFO L434 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 [2024-11-27 23:35:22,602 INFO L435 NwaCegarLoop]: 2828 mSDtfsCounter, 2092 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2595 SdHoareTripleChecker+Valid, 2880 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:22,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2595 Valid, 2880 Invalid, 959 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 23:35:22,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2051 states. [2024-11-27 23:35:23,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2051 to 2051. [2024-11-27 23:35:23,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2051 states, 1139 states have (on average 1.9376646180860404) internal successors, (2207), 2044 states have internal predecessors, (2207), 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) [2024-11-27 23:35:23,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2051 states to 2051 states and 3215 transitions. [2024-11-27 23:35:23,238 INFO L78 Accepts]: Start accepts. Automaton has 2051 states and 3215 transitions. Word has length 3 [2024-11-27 23:35:23,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:23,238 INFO L471 AbstractCegarLoop]: Abstraction has 2051 states and 3215 transitions. [2024-11-27 23:35:23,239 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) [2024-11-27 23:35:23,239 INFO L276 IsEmpty]: Start isEmpty. Operand 2051 states and 3215 transitions. [2024-11-27 23:35:23,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-27 23:35:23,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:23,240 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-27 23:35:23,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:35:23,240 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)] === [2024-11-27 23:35:23,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:23,241 INFO L85 PathProgramCache]: Analyzing trace with hash 65606, now seen corresponding path program 1 times [2024-11-27 23:35:23,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:35:23,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257181746] [2024-11-27 23:35:23,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:23,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:35:23,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:23,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:35:23,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:35:23,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257181746] [2024-11-27 23:35:23,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257181746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:23,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:35:23,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:35:23,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995950985] [2024-11-27 23:35:23,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:23,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:35:23,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:23,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:35:23,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:35:23,445 INFO L87 Difference]: Start difference. First operand 2051 states and 3215 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) [2024-11-27 23:35:25,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:25,954 INFO L93 Difference]: Finished difference Result 3816 states and 6132 transitions. [2024-11-27 23:35:25,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:35:25,955 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 [2024-11-27 23:35:25,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:25,982 INFO L225 Difference]: With dead ends: 3816 [2024-11-27 23:35:25,982 INFO L226 Difference]: Without dead ends: 3816 [2024-11-27 23:35:25,983 INFO L434 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 [2024-11-27 23:35:25,985 INFO L435 NwaCegarLoop]: 2930 mSDtfsCounter, 1909 mSDsluCounter, 2281 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2411 SdHoareTripleChecker+Valid, 5211 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:25,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2411 Valid, 5211 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-27 23:35:25,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3816 states. [2024-11-27 23:35:26,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3816 to 3552. [2024-11-27 23:35:26,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3552 states, 2141 states have (on average 1.9196637085474078) internal successors, (4110), 3543 states have internal predecessors, (4110), 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) [2024-11-27 23:35:26,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3552 states to 3552 states and 6122 transitions. [2024-11-27 23:35:26,450 INFO L78 Accepts]: Start accepts. Automaton has 3552 states and 6122 transitions. Word has length 3 [2024-11-27 23:35:26,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:26,454 INFO L471 AbstractCegarLoop]: Abstraction has 3552 states and 6122 transitions. [2024-11-27 23:35:26,454 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) [2024-11-27 23:35:26,454 INFO L276 IsEmpty]: Start isEmpty. Operand 3552 states and 6122 transitions. [2024-11-27 23:35:26,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-27 23:35:26,454 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:26,455 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:26,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:35:26,455 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:35:26,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:26,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1743988334, now seen corresponding path program 1 times [2024-11-27 23:35:26,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:35:26,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727372911] [2024-11-27 23:35:26,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:26,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:35:26,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:26,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:35:26,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:35:26,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727372911] [2024-11-27 23:35:26,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727372911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:26,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:35:26,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:35:26,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863063223] [2024-11-27 23:35:26,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:26,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:35:26,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:26,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:35:26,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:35:26,624 INFO L87 Difference]: Start difference. First operand 3552 states and 6122 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:35:28,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:28,655 INFO L93 Difference]: Finished difference Result 4816 states and 8440 transitions. [2024-11-27 23:35:28,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:35:28,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-27 23:35:28,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:28,691 INFO L225 Difference]: With dead ends: 4816 [2024-11-27 23:35:28,692 INFO L226 Difference]: Without dead ends: 4816 [2024-11-27 23:35:28,692 INFO L434 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 [2024-11-27 23:35:28,696 INFO L435 NwaCegarLoop]: 4984 mSDtfsCounter, 2077 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2580 SdHoareTripleChecker+Valid, 7290 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:28,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2580 Valid, 7290 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 23:35:28,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4816 states. [2024-11-27 23:35:29,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4816 to 3505. [2024-11-27 23:35:29,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3505 states, 2141 states have (on average 1.8865016347501167) internal successors, (4039), 3496 states have internal predecessors, (4039), 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) [2024-11-27 23:35:29,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3505 states to 3505 states and 6051 transitions. [2024-11-27 23:35:29,599 INFO L78 Accepts]: Start accepts. Automaton has 3505 states and 6051 transitions. Word has length 9 [2024-11-27 23:35:29,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:29,600 INFO L471 AbstractCegarLoop]: Abstraction has 3505 states and 6051 transitions. [2024-11-27 23:35:29,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:35:29,600 INFO L276 IsEmpty]: Start isEmpty. Operand 3505 states and 6051 transitions. [2024-11-27 23:35:29,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-27 23:35:29,602 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:29,602 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:29,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:35:29,602 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:35:29,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:29,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1743988333, now seen corresponding path program 1 times [2024-11-27 23:35:29,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:35:29,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362438150] [2024-11-27 23:35:29,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:29,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:35:29,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:29,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:35:29,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:35:29,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362438150] [2024-11-27 23:35:29,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362438150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:29,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:35:29,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:35:29,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015398910] [2024-11-27 23:35:29,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:29,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:35:29,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:29,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:35:29,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:35:29,827 INFO L87 Difference]: Start difference. First operand 3505 states and 6051 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:35:31,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:31,978 INFO L93 Difference]: Finished difference Result 6027 states and 10789 transitions. [2024-11-27 23:35:31,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:35:31,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-27 23:35:31,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:32,022 INFO L225 Difference]: With dead ends: 6027 [2024-11-27 23:35:32,022 INFO L226 Difference]: Without dead ends: 6027 [2024-11-27 23:35:32,023 INFO L434 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 [2024-11-27 23:35:32,025 INFO L435 NwaCegarLoop]: 5129 mSDtfsCounter, 1869 mSDsluCounter, 2423 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2371 SdHoareTripleChecker+Valid, 7552 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:32,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2371 Valid, 7552 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 23:35:32,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6027 states. [2024-11-27 23:35:32,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6027 to 3480. [2024-11-27 23:35:32,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3480 states, 2141 states have (on average 1.8636151331153668) internal successors, (3990), 3471 states have internal predecessors, (3990), 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) [2024-11-27 23:35:32,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3480 states to 3480 states and 6002 transitions. [2024-11-27 23:35:32,806 INFO L78 Accepts]: Start accepts. Automaton has 3480 states and 6002 transitions. Word has length 9 [2024-11-27 23:35:32,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:32,806 INFO L471 AbstractCegarLoop]: Abstraction has 3480 states and 6002 transitions. [2024-11-27 23:35:32,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:35:32,806 INFO L276 IsEmpty]: Start isEmpty. Operand 3480 states and 6002 transitions. [2024-11-27 23:35:32,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-27 23:35:32,807 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:32,807 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:32,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:35:32,807 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)] === [2024-11-27 23:35:32,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:32,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1246059725, now seen corresponding path program 1 times [2024-11-27 23:35:32,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:35:32,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647918647] [2024-11-27 23:35:32,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:32,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:35:32,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:33,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:35:33,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:35:33,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647918647] [2024-11-27 23:35:33,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647918647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:33,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:35:33,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:35:33,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403067929] [2024-11-27 23:35:33,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:33,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:35:33,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:33,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:35:33,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:35:33,031 INFO L87 Difference]: Start difference. First operand 3480 states and 6002 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) [2024-11-27 23:35:34,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:34,294 INFO L93 Difference]: Finished difference Result 6645 states and 11501 transitions. [2024-11-27 23:35:34,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:35:34,295 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 [2024-11-27 23:35:34,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:34,350 INFO L225 Difference]: With dead ends: 6645 [2024-11-27 23:35:34,353 INFO L226 Difference]: Without dead ends: 6645 [2024-11-27 23:35:34,354 INFO L434 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 [2024-11-27 23:35:34,355 INFO L435 NwaCegarLoop]: 3138 mSDtfsCounter, 2091 mSDsluCounter, 5714 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2594 SdHoareTripleChecker+Valid, 8852 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:34,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2594 Valid, 8852 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:35:34,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6645 states. [2024-11-27 23:35:35,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6645 to 3482. [2024-11-27 23:35:35,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3482 states, 2143 states have (on average 1.8628091460569296) internal successors, (3992), 3473 states have internal predecessors, (3992), 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) [2024-11-27 23:35:35,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3482 states to 3482 states and 6004 transitions. [2024-11-27 23:35:35,262 INFO L78 Accepts]: Start accepts. Automaton has 3482 states and 6004 transitions. Word has length 10 [2024-11-27 23:35:35,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:35,262 INFO L471 AbstractCegarLoop]: Abstraction has 3482 states and 6004 transitions. [2024-11-27 23:35:35,263 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) [2024-11-27 23:35:35,263 INFO L276 IsEmpty]: Start isEmpty. Operand 3482 states and 6004 transitions. [2024-11-27 23:35:35,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-27 23:35:35,263 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:35,264 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:35,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:35:35,264 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)] === [2024-11-27 23:35:35,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:35,265 INFO L85 PathProgramCache]: Analyzing trace with hash 495195041, now seen corresponding path program 1 times [2024-11-27 23:35:35,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:35:35,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405472508] [2024-11-27 23:35:35,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:35,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:35:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:35,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:35:35,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:35:35,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405472508] [2024-11-27 23:35:35,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405472508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:35,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:35:35,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:35:35,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745766914] [2024-11-27 23:35:35,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:35,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:35:35,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:35,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:35:35,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:35:35,371 INFO L87 Difference]: Start difference. First operand 3482 states and 6004 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-11-27 23:35:39,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:39,045 INFO L93 Difference]: Finished difference Result 3558 states and 6111 transitions. [2024-11-27 23:35:39,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:35:39,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2024-11-27 23:35:39,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:39,078 INFO L225 Difference]: With dead ends: 3558 [2024-11-27 23:35:39,078 INFO L226 Difference]: Without dead ends: 3558 [2024-11-27 23:35:39,079 INFO L434 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 [2024-11-27 23:35:39,081 INFO L435 NwaCegarLoop]: 2730 mSDtfsCounter, 2342 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 2295 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2845 SdHoareTripleChecker+Valid, 4333 SdHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:39,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2845 Valid, 4333 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2295 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-27 23:35:39,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3558 states. [2024-11-27 23:35:39,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3558 to 3459. [2024-11-27 23:35:39,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3459 states, 2143 states have (on average 1.841343910405973) internal successors, (3946), 3450 states have internal predecessors, (3946), 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) [2024-11-27 23:35:39,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 5958 transitions. [2024-11-27 23:35:39,614 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 5958 transitions. Word has length 19 [2024-11-27 23:35:39,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:39,614 INFO L471 AbstractCegarLoop]: Abstraction has 3459 states and 5958 transitions. [2024-11-27 23:35:39,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-11-27 23:35:39,616 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 5958 transitions. [2024-11-27 23:35:39,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-27 23:35:39,616 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:39,616 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:39,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:35:39,617 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)] === [2024-11-27 23:35:39,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:39,619 INFO L85 PathProgramCache]: Analyzing trace with hash 495195042, now seen corresponding path program 1 times [2024-11-27 23:35:39,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:35:39,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782192135] [2024-11-27 23:35:39,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:39,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:35:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:39,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:35:39,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:35:39,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782192135] [2024-11-27 23:35:39,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782192135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:39,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:35:39,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:35:39,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114259668] [2024-11-27 23:35:39,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:39,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:35:39,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:39,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:35:39,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:35:39,767 INFO L87 Difference]: Start difference. First operand 3459 states and 5958 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-11-27 23:35:39,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:39,835 INFO L93 Difference]: Finished difference Result 3321 states and 5752 transitions. [2024-11-27 23:35:39,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:35:39,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2024-11-27 23:35:39,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:39,851 INFO L225 Difference]: With dead ends: 3321 [2024-11-27 23:35:39,851 INFO L226 Difference]: Without dead ends: 3321 [2024-11-27 23:35:39,852 INFO L434 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 [2024-11-27 23:35:39,852 INFO L435 NwaCegarLoop]: 2995 mSDtfsCounter, 61 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 5937 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 [2024-11-27 23:35:39,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 5937 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:35:39,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3321 states. [2024-11-27 23:35:40,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3321 to 3321. [2024-11-27 23:35:40,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3321 states, 2017 states have (on average 1.8542389687654932) internal successors, (3740), 3312 states have internal predecessors, (3740), 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) [2024-11-27 23:35:40,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3321 states to 3321 states and 5752 transitions. [2024-11-27 23:35:40,358 INFO L78 Accepts]: Start accepts. Automaton has 3321 states and 5752 transitions. Word has length 19 [2024-11-27 23:35:40,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:40,358 INFO L471 AbstractCegarLoop]: Abstraction has 3321 states and 5752 transitions. [2024-11-27 23:35:40,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-11-27 23:35:40,359 INFO L276 IsEmpty]: Start isEmpty. Operand 3321 states and 5752 transitions. [2024-11-27 23:35:40,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-27 23:35:40,360 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:40,360 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:40,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:35:40,360 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)] === [2024-11-27 23:35:40,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:40,361 INFO L85 PathProgramCache]: Analyzing trace with hash -858657125, now seen corresponding path program 1 times [2024-11-27 23:35:40,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:35:40,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532497673] [2024-11-27 23:35:40,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:40,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:35:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:40,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:35:40,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:35:40,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532497673] [2024-11-27 23:35:40,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532497673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:40,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:35:40,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:35:40,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610236443] [2024-11-27 23:35:40,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:40,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:35:40,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:40,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:35:40,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:35:40,478 INFO L87 Difference]: Start difference. First operand 3321 states and 5752 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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) [2024-11-27 23:35:40,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:40,608 INFO L93 Difference]: Finished difference Result 3292 states and 5702 transitions. [2024-11-27 23:35:40,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:35:40,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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 [2024-11-27 23:35:40,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:40,625 INFO L225 Difference]: With dead ends: 3292 [2024-11-27 23:35:40,626 INFO L226 Difference]: Without dead ends: 3292 [2024-11-27 23:35:40,626 INFO L434 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 [2024-11-27 23:35:40,627 INFO L435 NwaCegarLoop]: 2960 mSDtfsCounter, 41 mSDsluCounter, 5892 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 8852 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:40,627 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 8852 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:35:40,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3292 states. [2024-11-27 23:35:41,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3292 to 3286. [2024-11-27 23:35:41,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 1989 states have (on average 1.852187028657617) internal successors, (3684), 3277 states have internal predecessors, (3684), 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) [2024-11-27 23:35:41,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 5696 transitions. [2024-11-27 23:35:41,097 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 5696 transitions. Word has length 21 [2024-11-27 23:35:41,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:41,098 INFO L471 AbstractCegarLoop]: Abstraction has 3286 states and 5696 transitions. [2024-11-27 23:35:41,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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) [2024-11-27 23:35:41,098 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 5696 transitions. [2024-11-27 23:35:41,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-27 23:35:41,099 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:41,100 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:41,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:35:41,100 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)] === [2024-11-27 23:35:41,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:41,101 INFO L85 PathProgramCache]: Analyzing trace with hash -496287351, now seen corresponding path program 1 times [2024-11-27 23:35:41,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:35:41,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766512451] [2024-11-27 23:35:41,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:41,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:35:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:41,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:35:41,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:35:41,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766512451] [2024-11-27 23:35:41,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766512451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:41,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:35:41,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:35:41,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928365992] [2024-11-27 23:35:41,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:41,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:35:41,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:41,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:35:41,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:35:41,442 INFO L87 Difference]: Start difference. First operand 3286 states and 5696 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-11-27 23:35:45,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:45,979 INFO L93 Difference]: Finished difference Result 6062 states and 10807 transitions. [2024-11-27 23:35:45,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:35:45,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 35 [2024-11-27 23:35:45,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:46,012 INFO L225 Difference]: With dead ends: 6062 [2024-11-27 23:35:46,012 INFO L226 Difference]: Without dead ends: 6062 [2024-11-27 23:35:46,012 INFO L434 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 [2024-11-27 23:35:46,013 INFO L435 NwaCegarLoop]: 2799 mSDtfsCounter, 1818 mSDsluCounter, 3582 mSDsCounter, 0 mSdLazyCounter, 2359 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2318 SdHoareTripleChecker+Valid, 6381 SdHoareTripleChecker+Invalid, 2362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:46,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2318 Valid, 6381 Invalid, 2362 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2359 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-27 23:35:46,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6062 states. [2024-11-27 23:35:46,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6062 to 3282. [2024-11-27 23:35:46,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3282 states, 1989 states have (on average 1.8481649069884365) internal successors, (3676), 3273 states have internal predecessors, (3676), 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) [2024-11-27 23:35:46,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3282 states to 3282 states and 5688 transitions. [2024-11-27 23:35:46,953 INFO L78 Accepts]: Start accepts. Automaton has 3282 states and 5688 transitions. Word has length 35 [2024-11-27 23:35:46,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:46,954 INFO L471 AbstractCegarLoop]: Abstraction has 3282 states and 5688 transitions. [2024-11-27 23:35:46,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-11-27 23:35:46,954 INFO L276 IsEmpty]: Start isEmpty. Operand 3282 states and 5688 transitions. [2024-11-27 23:35:46,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-27 23:35:46,962 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:46,962 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:46,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:35:46,963 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:35:46,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:46,968 INFO L85 PathProgramCache]: Analyzing trace with hash -907140769, now seen corresponding path program 1 times [2024-11-27 23:35:46,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:35:46,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763295522] [2024-11-27 23:35:46,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:46,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:35:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:47,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:35:47,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:35:47,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763295522] [2024-11-27 23:35:47,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763295522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:47,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:35:47,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:35:47,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641487771] [2024-11-27 23:35:47,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:47,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:35:47,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:47,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:35:47,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:35:47,208 INFO L87 Difference]: Start difference. First operand 3282 states and 5688 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-11-27 23:35:47,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:47,318 INFO L93 Difference]: Finished difference Result 3282 states and 5680 transitions. [2024-11-27 23:35:47,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:35:47,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 69 [2024-11-27 23:35:47,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:47,334 INFO L225 Difference]: With dead ends: 3282 [2024-11-27 23:35:47,334 INFO L226 Difference]: Without dead ends: 3282 [2024-11-27 23:35:47,334 INFO L434 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 [2024-11-27 23:35:47,335 INFO L435 NwaCegarLoop]: 2955 mSDtfsCounter, 21 mSDsluCounter, 5879 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 8834 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:47,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 8834 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:35:47,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3282 states. [2024-11-27 23:35:47,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3282 to 3282. [2024-11-27 23:35:47,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3282 states, 1989 states have (on average 1.844142785319256) internal successors, (3668), 3273 states have internal predecessors, (3668), 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) [2024-11-27 23:35:47,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3282 states to 3282 states and 5680 transitions. [2024-11-27 23:35:47,772 INFO L78 Accepts]: Start accepts. Automaton has 3282 states and 5680 transitions. Word has length 69 [2024-11-27 23:35:47,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:47,773 INFO L471 AbstractCegarLoop]: Abstraction has 3282 states and 5680 transitions. [2024-11-27 23:35:47,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-11-27 23:35:47,773 INFO L276 IsEmpty]: Start isEmpty. Operand 3282 states and 5680 transitions. [2024-11-27 23:35:47,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-27 23:35:47,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:47,775 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:47,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:35:47,775 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:35:47,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:47,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1031867989, now seen corresponding path program 1 times [2024-11-27 23:35:47,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:35:47,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099837895] [2024-11-27 23:35:47,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:47,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:35:47,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:48,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:35:48,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:35:48,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099837895] [2024-11-27 23:35:48,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099837895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:48,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:35:48,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:35:48,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924715788] [2024-11-27 23:35:48,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:48,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:35:48,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:48,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:35:48,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:35:48,023 INFO L87 Difference]: Start difference. First operand 3282 states and 5680 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2024-11-27 23:35:48,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:48,166 INFO L93 Difference]: Finished difference Result 5793 states and 10403 transitions. [2024-11-27 23:35:48,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:35:48,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2024-11-27 23:35:48,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:48,192 INFO L225 Difference]: With dead ends: 5793 [2024-11-27 23:35:48,192 INFO L226 Difference]: Without dead ends: 5793 [2024-11-27 23:35:48,192 INFO L434 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 [2024-11-27 23:35:48,193 INFO L435 NwaCegarLoop]: 3264 mSDtfsCounter, 1354 mSDsluCounter, 2925 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1854 SdHoareTripleChecker+Valid, 6189 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:48,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1854 Valid, 6189 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:35:48,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5793 states. [2024-11-27 23:35:48,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5793 to 5736. [2024-11-27 23:35:48,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5736 states, 3443 states have (on average 1.8553586988091781) internal successors, (6388), 5727 states have internal predecessors, (6388), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 2 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-27 23:35:48,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5736 states to 5736 states and 10400 transitions. [2024-11-27 23:35:48,832 INFO L78 Accepts]: Start accepts. Automaton has 5736 states and 10400 transitions. Word has length 77 [2024-11-27 23:35:48,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:48,832 INFO L471 AbstractCegarLoop]: Abstraction has 5736 states and 10400 transitions. [2024-11-27 23:35:48,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2024-11-27 23:35:48,833 INFO L276 IsEmpty]: Start isEmpty. Operand 5736 states and 10400 transitions. [2024-11-27 23:35:48,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-27 23:35:48,834 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:48,834 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:48,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:35:48,834 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:35:48,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:48,835 INFO L85 PathProgramCache]: Analyzing trace with hash 646450878, now seen corresponding path program 1 times [2024-11-27 23:35:48,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:35:48,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130734342] [2024-11-27 23:35:48,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:48,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:35:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:49,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:35:49,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:35:49,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130734342] [2024-11-27 23:35:49,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130734342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:49,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:35:49,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:35:49,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159460935] [2024-11-27 23:35:49,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:49,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:35:49,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:49,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:35:49,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:35:49,345 INFO L87 Difference]: Start difference. First operand 5736 states and 10400 transitions. Second operand has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 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) [2024-11-27 23:35:50,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:50,519 INFO L93 Difference]: Finished difference Result 5735 states and 10398 transitions. [2024-11-27 23:35:50,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:35:50,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 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 85 [2024-11-27 23:35:50,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:50,546 INFO L225 Difference]: With dead ends: 5735 [2024-11-27 23:35:50,546 INFO L226 Difference]: Without dead ends: 5735 [2024-11-27 23:35:50,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:35:50,548 INFO L435 NwaCegarLoop]: 2966 mSDtfsCounter, 2 mSDsluCounter, 7907 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10873 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:50,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10873 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 998 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:35:50,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5735 states. [2024-11-27 23:35:51,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5735 to 5735. [2024-11-27 23:35:51,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5735 states, 3443 states have (on average 1.8547778100493755) internal successors, (6386), 5726 states have internal predecessors, (6386), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 2 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-27 23:35:51,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5735 states to 5735 states and 10398 transitions. [2024-11-27 23:35:51,170 INFO L78 Accepts]: Start accepts. Automaton has 5735 states and 10398 transitions. Word has length 85 [2024-11-27 23:35:51,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:51,171 INFO L471 AbstractCegarLoop]: Abstraction has 5735 states and 10398 transitions. [2024-11-27 23:35:51,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 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) [2024-11-27 23:35:51,171 INFO L276 IsEmpty]: Start isEmpty. Operand 5735 states and 10398 transitions. [2024-11-27 23:35:51,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-27 23:35:51,172 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:51,173 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:51,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 23:35:51,173 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:35:51,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:51,174 INFO L85 PathProgramCache]: Analyzing trace with hash 646450879, now seen corresponding path program 1 times [2024-11-27 23:35:51,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:35:51,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669933786] [2024-11-27 23:35:51,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:51,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:35:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:52,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:35:52,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:35:52,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669933786] [2024-11-27 23:35:52,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669933786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:52,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:35:52,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:35:52,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063847195] [2024-11-27 23:35:52,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:52,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:35:52,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:52,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:35:52,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:35:52,008 INFO L87 Difference]: Start difference. First operand 5735 states and 10398 transitions. Second operand has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 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) [2024-11-27 23:35:53,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:53,240 INFO L93 Difference]: Finished difference Result 5734 states and 10396 transitions. [2024-11-27 23:35:53,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:35:53,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 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 85 [2024-11-27 23:35:53,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:53,263 INFO L225 Difference]: With dead ends: 5734 [2024-11-27 23:35:53,264 INFO L226 Difference]: Without dead ends: 5734 [2024-11-27 23:35:53,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:35:53,265 INFO L435 NwaCegarLoop]: 2966 mSDtfsCounter, 1 mSDsluCounter, 7845 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10811 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:53,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10811 Invalid, 1058 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:35:53,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5734 states. [2024-11-27 23:35:54,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5734 to 5734. [2024-11-27 23:35:54,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5734 states, 3441 states have (on average 1.855274629468178) internal successors, (6384), 5725 states have internal predecessors, (6384), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 2 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-27 23:35:54,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5734 states to 5734 states and 10396 transitions. [2024-11-27 23:35:54,170 INFO L78 Accepts]: Start accepts. Automaton has 5734 states and 10396 transitions. Word has length 85 [2024-11-27 23:35:54,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:54,170 INFO L471 AbstractCegarLoop]: Abstraction has 5734 states and 10396 transitions. [2024-11-27 23:35:54,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 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) [2024-11-27 23:35:54,171 INFO L276 IsEmpty]: Start isEmpty. Operand 5734 states and 10396 transitions. [2024-11-27 23:35:54,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-27 23:35:54,172 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:54,172 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:54,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 23:35:54,172 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:35:54,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:54,173 INFO L85 PathProgramCache]: Analyzing trace with hash 324787653, now seen corresponding path program 1 times [2024-11-27 23:35:54,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:35:54,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847654372] [2024-11-27 23:35:54,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:54,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:35:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:54,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:35:54,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:35:54,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847654372] [2024-11-27 23:35:54,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847654372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:54,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:35:54,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:35:54,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834578394] [2024-11-27 23:35:54,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:54,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:35:54,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:54,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:35:54,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:35:54,623 INFO L87 Difference]: Start difference. First operand 5734 states and 10396 transitions. Second operand has 7 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:36:00,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:00,595 INFO L93 Difference]: Finished difference Result 5752 states and 10422 transitions. [2024-11-27 23:36:00,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:36:00,595 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2024-11-27 23:36:00,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:00,622 INFO L225 Difference]: With dead ends: 5752 [2024-11-27 23:36:00,623 INFO L226 Difference]: Without dead ends: 5752 [2024-11-27 23:36:00,623 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:36:00,624 INFO L435 NwaCegarLoop]: 2951 mSDtfsCounter, 13 mSDsluCounter, 8399 mSDsCounter, 0 mSdLazyCounter, 3492 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 11350 SdHoareTripleChecker+Invalid, 3997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 3492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:00,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 11350 Invalid, 3997 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [505 Valid, 3492 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-27 23:36:00,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5752 states. [2024-11-27 23:36:01,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5752 to 5743. [2024-11-27 23:36:01,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5743 states, 3449 states have (on average 1.8541606262684835) internal successors, (6395), 5732 states have internal predecessors, (6395), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 3 states have return successors, (2010), 11 states have call predecessors, (2010), 2005 states have call successors, (2010) [2024-11-27 23:36:01,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5743 states to 5743 states and 10412 transitions. [2024-11-27 23:36:01,815 INFO L78 Accepts]: Start accepts. Automaton has 5743 states and 10412 transitions. Word has length 93 [2024-11-27 23:36:01,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:01,816 INFO L471 AbstractCegarLoop]: Abstraction has 5743 states and 10412 transitions. [2024-11-27 23:36:01,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:36:01,816 INFO L276 IsEmpty]: Start isEmpty. Operand 5743 states and 10412 transitions. [2024-11-27 23:36:01,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-27 23:36:01,817 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:01,818 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:36:01,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 23:36:01,818 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:36:01,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:01,821 INFO L85 PathProgramCache]: Analyzing trace with hash 324787654, now seen corresponding path program 1 times [2024-11-27 23:36:01,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:36:01,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718059369] [2024-11-27 23:36:01,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:01,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:36:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:02,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:36:02,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:36:02,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718059369] [2024-11-27 23:36:02,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718059369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:36:02,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:36:02,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:36:02,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899838903] [2024-11-27 23:36:02,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:36:02,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:36:02,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:36:02,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:36:02,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:36:02,841 INFO L87 Difference]: Start difference. First operand 5743 states and 10412 transitions. Second operand has 6 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:36:08,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:08,903 INFO L93 Difference]: Finished difference Result 5743 states and 10410 transitions. [2024-11-27 23:36:08,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:36:08,903 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2024-11-27 23:36:08,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:08,924 INFO L225 Difference]: With dead ends: 5743 [2024-11-27 23:36:08,924 INFO L226 Difference]: Without dead ends: 5743 [2024-11-27 23:36:08,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:36:08,925 INFO L435 NwaCegarLoop]: 2955 mSDtfsCounter, 8 mSDsluCounter, 8162 mSDsCounter, 0 mSdLazyCounter, 3209 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 11117 SdHoareTripleChecker+Invalid, 3712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 3209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:08,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 11117 Invalid, 3712 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [503 Valid, 3209 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-27 23:36:08,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5743 states. [2024-11-27 23:36:09,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5743 to 5743. [2024-11-27 23:36:09,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5743 states, 3449 states have (on average 1.853580748042911) internal successors, (6393), 5732 states have internal predecessors, (6393), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 3 states have return successors, (2010), 11 states have call predecessors, (2010), 2005 states have call successors, (2010) [2024-11-27 23:36:09,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5743 states to 5743 states and 10410 transitions. [2024-11-27 23:36:09,648 INFO L78 Accepts]: Start accepts. Automaton has 5743 states and 10410 transitions. Word has length 93 [2024-11-27 23:36:09,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:09,648 INFO L471 AbstractCegarLoop]: Abstraction has 5743 states and 10410 transitions. [2024-11-27 23:36:09,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:36:09,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5743 states and 10410 transitions. [2024-11-27 23:36:09,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-27 23:36:09,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:09,650 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:36:09,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 23:36:09,651 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:36:09,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:09,651 INFO L85 PathProgramCache]: Analyzing trace with hash -630125909, now seen corresponding path program 1 times [2024-11-27 23:36:09,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:36:09,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345340246] [2024-11-27 23:36:09,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:09,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:36:09,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:10,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:36:10,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:36:10,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345340246] [2024-11-27 23:36:10,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345340246] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:36:10,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489527752] [2024-11-27 23:36:10,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:10,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:36:10,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:36:10,584 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:36:10,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:36:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:10,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 23:36:10,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:36:10,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 23:36:11,214 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-27 23:36:11,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-27 23:36:11,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:36:11,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-27 23:36:11,691 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:36:11,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:36:11,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-27 23:36:11,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:36:11,810 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:36:11,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489527752] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:36:11,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:36:11,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 18 [2024-11-27 23:36:11,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693375079] [2024-11-27 23:36:11,915 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:36:11,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 23:36:11,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:36:11,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 23:36:11,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=321, Unknown=3, NotChecked=0, Total=380 [2024-11-27 23:36:11,917 INFO L87 Difference]: Start difference. First operand 5743 states and 10410 transitions. Second operand has 19 states, 16 states have (on average 9.25) internal successors, (148), 18 states have internal predecessors, (148), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:36:25,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:25,917 INFO L93 Difference]: Finished difference Result 5750 states and 10416 transitions. [2024-11-27 23:36:25,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:36:25,918 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 9.25) internal successors, (148), 18 states have internal predecessors, (148), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 94 [2024-11-27 23:36:25,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:25,937 INFO L225 Difference]: With dead ends: 5750 [2024-11-27 23:36:25,937 INFO L226 Difference]: Without dead ends: 5750 [2024-11-27 23:36:25,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=466, Unknown=3, NotChecked=0, Total=552 [2024-11-27 23:36:25,938 INFO L435 NwaCegarLoop]: 2619 mSDtfsCounter, 1872 mSDsluCounter, 17560 mSDsCounter, 0 mSdLazyCounter, 12481 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2376 SdHoareTripleChecker+Valid, 20179 SdHoareTripleChecker+Invalid, 12997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 12481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:25,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2376 Valid, 20179 Invalid, 12997 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [516 Valid, 12481 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time] [2024-11-27 23:36:25,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5750 states. [2024-11-27 23:36:26,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5750 to 5747. [2024-11-27 23:36:26,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5747 states, 3453 states have (on average 1.8523023457862728) internal successors, (6396), 5735 states have internal predecessors, (6396), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:36:26,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5747 states to 5747 states and 10410 transitions. [2024-11-27 23:36:26,800 INFO L78 Accepts]: Start accepts. Automaton has 5747 states and 10410 transitions. Word has length 94 [2024-11-27 23:36:26,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:26,801 INFO L471 AbstractCegarLoop]: Abstraction has 5747 states and 10410 transitions. [2024-11-27 23:36:26,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 9.25) internal successors, (148), 18 states have internal predecessors, (148), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:36:26,801 INFO L276 IsEmpty]: Start isEmpty. Operand 5747 states and 10410 transitions. [2024-11-27 23:36:26,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-27 23:36:26,802 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:26,802 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:36:26,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:36:27,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 23:36:27,007 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:36:27,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:27,012 INFO L85 PathProgramCache]: Analyzing trace with hash -630125908, now seen corresponding path program 1 times [2024-11-27 23:36:27,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:36:27,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826768451] [2024-11-27 23:36:27,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:27,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:36:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:28,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:36:28,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:36:28,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826768451] [2024-11-27 23:36:28,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826768451] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:36:28,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577620022] [2024-11-27 23:36:28,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:28,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:36:28,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:36:28,304 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:36:28,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:36:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:28,628 INFO L256 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-27 23:36:28,636 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:36:28,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 23:36:28,852 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-27 23:36:28,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-27 23:36:28,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 23:36:28,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:36:28,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-27 23:36:29,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-27 23:36:29,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:36:29,283 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:36:29,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-27 23:36:29,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:36:29,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-27 23:36:29,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:36:29,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:36:29,464 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:36:29,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577620022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:36:29,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:36:29,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 17 [2024-11-27 23:36:29,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783001784] [2024-11-27 23:36:29,732 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:36:29,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 23:36:29,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:36:29,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 23:36:29,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=348, Unknown=11, NotChecked=0, Total=420 [2024-11-27 23:36:29,734 INFO L87 Difference]: Start difference. First operand 5747 states and 10410 transitions. Second operand has 18 states, 15 states have (on average 9.866666666666667) internal successors, (148), 18 states have internal predecessors, (148), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:36:44,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:44,832 INFO L93 Difference]: Finished difference Result 5749 states and 10414 transitions. [2024-11-27 23:36:44,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:36:44,833 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 9.866666666666667) internal successors, (148), 18 states have internal predecessors, (148), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 94 [2024-11-27 23:36:44,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:44,851 INFO L225 Difference]: With dead ends: 5749 [2024-11-27 23:36:44,851 INFO L226 Difference]: Without dead ends: 5749 [2024-11-27 23:36:44,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=95, Invalid=493, Unknown=12, NotChecked=0, Total=600 [2024-11-27 23:36:44,852 INFO L435 NwaCegarLoop]: 2622 mSDtfsCounter, 1876 mSDsluCounter, 18242 mSDsCounter, 0 mSdLazyCounter, 10702 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2380 SdHoareTripleChecker+Valid, 20864 SdHoareTripleChecker+Invalid, 11220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 10702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:44,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2380 Valid, 20864 Invalid, 11220 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [518 Valid, 10702 Invalid, 0 Unknown, 0 Unchecked, 14.5s Time] [2024-11-27 23:36:44,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5749 states. [2024-11-27 23:36:45,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5749 to 5737. [2024-11-27 23:36:45,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5737 states, 3445 states have (on average 1.853410740203193) internal successors, (6385), 5727 states have internal predecessors, (6385), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 3 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-27 23:36:45,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5737 states to 5737 states and 10397 transitions. [2024-11-27 23:36:45,679 INFO L78 Accepts]: Start accepts. Automaton has 5737 states and 10397 transitions. Word has length 94 [2024-11-27 23:36:45,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:45,679 INFO L471 AbstractCegarLoop]: Abstraction has 5737 states and 10397 transitions. [2024-11-27 23:36:45,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 9.866666666666667) internal successors, (148), 18 states have internal predecessors, (148), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:36:45,680 INFO L276 IsEmpty]: Start isEmpty. Operand 5737 states and 10397 transitions. [2024-11-27 23:36:45,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-27 23:36:45,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:45,681 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:36:45,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:36:45,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-27 23:36:45,885 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:36:45,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:45,890 INFO L85 PathProgramCache]: Analyzing trace with hash -811700887, now seen corresponding path program 1 times [2024-11-27 23:36:45,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:36:45,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799229578] [2024-11-27 23:36:45,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:45,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:36:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:46,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:36:46,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:36:46,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799229578] [2024-11-27 23:36:46,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799229578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:36:46,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:36:46,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-27 23:36:46,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308550951] [2024-11-27 23:36:46,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:36:46,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 23:36:46,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:36:46,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 23:36:46,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:36:46,737 INFO L87 Difference]: Start difference. First operand 5737 states and 10397 transitions. Second operand has 14 states, 12 states have (on average 7.833333333333333) internal successors, (94), 13 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:36:56,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:56,117 INFO L93 Difference]: Finished difference Result 5756 states and 10422 transitions. [2024-11-27 23:36:56,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:36:56,118 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.833333333333333) internal successors, (94), 13 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2024-11-27 23:36:56,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:56,138 INFO L225 Difference]: With dead ends: 5756 [2024-11-27 23:36:56,138 INFO L226 Difference]: Without dead ends: 5756 [2024-11-27 23:36:56,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:36:56,139 INFO L435 NwaCegarLoop]: 2619 mSDtfsCounter, 1892 mSDsluCounter, 12721 mSDsCounter, 0 mSdLazyCounter, 8916 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2396 SdHoareTripleChecker+Valid, 15340 SdHoareTripleChecker+Invalid, 9430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 8916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:56,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2396 Valid, 15340 Invalid, 9430 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [514 Valid, 8916 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2024-11-27 23:36:56,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2024-11-27 23:36:56,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 5752. [2024-11-27 23:36:56,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5752 states, 3459 states have (on average 1.8508239375542064) internal successors, (6402), 5740 states have internal predecessors, (6402), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:36:56,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5752 states to 5752 states and 10416 transitions. [2024-11-27 23:36:56,907 INFO L78 Accepts]: Start accepts. Automaton has 5752 states and 10416 transitions. Word has length 96 [2024-11-27 23:36:56,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:56,907 INFO L471 AbstractCegarLoop]: Abstraction has 5752 states and 10416 transitions. [2024-11-27 23:36:56,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.833333333333333) internal successors, (94), 13 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:36:56,908 INFO L276 IsEmpty]: Start isEmpty. Operand 5752 states and 10416 transitions. [2024-11-27 23:36:56,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-27 23:36:56,909 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:56,909 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:36:56,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 23:36:56,909 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:36:56,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:56,913 INFO L85 PathProgramCache]: Analyzing trace with hash -811700886, now seen corresponding path program 1 times [2024-11-27 23:36:56,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:36:56,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851425165] [2024-11-27 23:36:56,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:56,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:36:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:58,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:36:58,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:36:58,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851425165] [2024-11-27 23:36:58,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851425165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:36:58,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:36:58,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 23:36:58,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116891483] [2024-11-27 23:36:58,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:36:58,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:36:58,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:36:58,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:36:58,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:36:58,020 INFO L87 Difference]: Start difference. First operand 5752 states and 10416 transitions. Second operand has 11 states, 10 states have (on average 9.4) internal successors, (94), 11 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:37:07,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:37:07,738 INFO L93 Difference]: Finished difference Result 5755 states and 10420 transitions. [2024-11-27 23:37:07,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:37:07,738 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.4) internal successors, (94), 11 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2024-11-27 23:37:07,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:37:07,752 INFO L225 Difference]: With dead ends: 5755 [2024-11-27 23:37:07,752 INFO L226 Difference]: Without dead ends: 5755 [2024-11-27 23:37:07,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:37:07,753 INFO L435 NwaCegarLoop]: 2623 mSDtfsCounter, 1902 mSDsluCounter, 13187 mSDsCounter, 0 mSdLazyCounter, 7376 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 15810 SdHoareTripleChecker+Invalid, 7888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 7376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:37:07,753 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2406 Valid, 15810 Invalid, 7888 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [512 Valid, 7376 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2024-11-27 23:37:07,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5755 states. [2024-11-27 23:37:08,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5755 to 5752. [2024-11-27 23:37:08,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5752 states, 3459 states have (on average 1.8502457357617808) internal successors, (6400), 5740 states have internal predecessors, (6400), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:37:08,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5752 states to 5752 states and 10414 transitions. [2024-11-27 23:37:08,491 INFO L78 Accepts]: Start accepts. Automaton has 5752 states and 10414 transitions. Word has length 96 [2024-11-27 23:37:08,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:37:08,492 INFO L471 AbstractCegarLoop]: Abstraction has 5752 states and 10414 transitions. [2024-11-27 23:37:08,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.4) internal successors, (94), 11 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:37:08,492 INFO L276 IsEmpty]: Start isEmpty. Operand 5752 states and 10414 transitions. [2024-11-27 23:37:08,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-27 23:37:08,493 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:37:08,494 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:37:08,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 23:37:08,494 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:37:08,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:37:08,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1221742275, now seen corresponding path program 1 times [2024-11-27 23:37:08,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:37:08,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919885844] [2024-11-27 23:37:08,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:37:08,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:37:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:37:09,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:37:09,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:37:09,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919885844] [2024-11-27 23:37:09,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919885844] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:37:09,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750809928] [2024-11-27 23:37:09,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:37:09,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:37:09,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:37:09,317 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:37:09,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:37:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:37:09,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 23:37:09,695 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:37:09,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 23:37:09,924 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-27 23:37:09,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-27 23:37:09,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:37:10,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-27 23:37:10,360 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:10,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:37:10,517 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:10,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:37:10,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-27 23:37:10,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:37:10,601 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:37:10,618 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1012 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1012) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2024-11-27 23:37:10,715 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1015 (Array Int Int)) (v_ArrVal_1012 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1015))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1012)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-27 23:37:10,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750809928] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:37:10,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:37:10,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9] total 21 [2024-11-27 23:37:10,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594909010] [2024-11-27 23:37:10,718 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:37:10,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 23:37:10,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:37:10,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 23:37:10,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=425, Unknown=9, NotChecked=86, Total=600 [2024-11-27 23:37:10,721 INFO L87 Difference]: Start difference. First operand 5752 states and 10414 transitions. Second operand has 22 states, 19 states have (on average 8.105263157894736) internal successors, (154), 21 states have internal predecessors, (154), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:37:26,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:37:26,738 INFO L93 Difference]: Finished difference Result 5754 states and 10418 transitions. [2024-11-27 23:37:26,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:37:26,739 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 8.105263157894736) internal successors, (154), 21 states have internal predecessors, (154), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 97 [2024-11-27 23:37:26,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:37:26,749 INFO L225 Difference]: With dead ends: 5754 [2024-11-27 23:37:26,749 INFO L226 Difference]: Without dead ends: 5754 [2024-11-27 23:37:26,750 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=102, Invalid=547, Unknown=9, NotChecked=98, Total=756 [2024-11-27 23:37:26,750 INFO L435 NwaCegarLoop]: 2618 mSDtfsCounter, 1865 mSDsluCounter, 19134 mSDsCounter, 0 mSdLazyCounter, 13853 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2369 SdHoareTripleChecker+Valid, 21752 SdHoareTripleChecker+Invalid, 14367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 13853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:37:26,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2369 Valid, 21752 Invalid, 14367 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [514 Valid, 13853 Invalid, 0 Unknown, 0 Unchecked, 15.5s Time] [2024-11-27 23:37:26,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5754 states. [2024-11-27 23:37:27,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5754 to 5751. [2024-11-27 23:37:27,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5751 states, 3459 states have (on average 1.8496675339693553) internal successors, (6398), 5739 states have internal predecessors, (6398), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:37:27,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5751 states to 5751 states and 10412 transitions. [2024-11-27 23:37:27,435 INFO L78 Accepts]: Start accepts. Automaton has 5751 states and 10412 transitions. Word has length 97 [2024-11-27 23:37:27,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:37:27,435 INFO L471 AbstractCegarLoop]: Abstraction has 5751 states and 10412 transitions. [2024-11-27 23:37:27,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 8.105263157894736) internal successors, (154), 21 states have internal predecessors, (154), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:37:27,436 INFO L276 IsEmpty]: Start isEmpty. Operand 5751 states and 10412 transitions. [2024-11-27 23:37:27,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-27 23:37:27,437 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:37:27,437 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:37:27,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:37:27,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:37:27,638 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:37:27,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:37:27,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1221742276, now seen corresponding path program 1 times [2024-11-27 23:37:27,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:37:27,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124687449] [2024-11-27 23:37:27,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:37:27,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:37:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:37:28,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:37:28,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:37:28,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124687449] [2024-11-27 23:37:28,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124687449] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:37:28,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654818212] [2024-11-27 23:37:28,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:37:28,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:37:28,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:37:28,825 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:37:28,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:37:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:37:29,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-27 23:37:29,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:37:29,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 23:37:29,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 23:37:29,407 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-27 23:37:29,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-27 23:37:29,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:37:29,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-27 23:37:29,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-27 23:37:29,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:37:29,808 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:29,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-27 23:37:29,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:37:29,962 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:29,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-27 23:37:29,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:37:30,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-27 23:37:30,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:37:30,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:37:30,051 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:37:30,269 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_1168 (Array Int Int)) (v_ArrVal_1167 (Array Int Int))) (<= (+ 8 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1168) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1167) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_1168 (Array Int Int))) (<= 0 (+ 4 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1168) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))) is different from false [2024-11-27 23:37:30,357 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1168 (Array Int Int)) (v_ArrVal_1167 (Array Int Int)) (v_ArrVal_1174 (Array Int Int)) (v_ArrVal_1173 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1174))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1173) .cse0 v_ArrVal_1168) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_1167) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1168 (Array Int Int)) (v_ArrVal_1174 (Array Int Int)) (v_ArrVal_1173 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1173) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1174) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1168) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 4))))) is different from false [2024-11-27 23:37:30,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654818212] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:37:30,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:37:30,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2024-11-27 23:37:30,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755979168] [2024-11-27 23:37:30,361 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:37:30,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-27 23:37:30,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:37:30,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-27 23:37:30,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=430, Unknown=9, NotChecked=86, Total=600 [2024-11-27 23:37:30,362 INFO L87 Difference]: Start difference. First operand 5751 states and 10412 transitions. Second operand has 20 states, 17 states have (on average 9.058823529411764) internal successors, (154), 20 states have internal predecessors, (154), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:37:47,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:37:47,837 INFO L93 Difference]: Finished difference Result 5753 states and 10416 transitions. [2024-11-27 23:37:47,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:37:47,837 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 9.058823529411764) internal successors, (154), 20 states have internal predecessors, (154), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 97 [2024-11-27 23:37:47,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:37:47,851 INFO L225 Difference]: With dead ends: 5753 [2024-11-27 23:37:47,851 INFO L226 Difference]: Without dead ends: 5753 [2024-11-27 23:37:47,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=119, Invalid=636, Unknown=9, NotChecked=106, Total=870 [2024-11-27 23:37:47,853 INFO L435 NwaCegarLoop]: 2621 mSDtfsCounter, 1878 mSDsluCounter, 21486 mSDsCounter, 0 mSdLazyCounter, 12522 mSolverCounterSat, 1022 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2382 SdHoareTripleChecker+Valid, 24107 SdHoareTripleChecker+Invalid, 13544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1022 IncrementalHoareTripleChecker+Valid, 12522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:37:47,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2382 Valid, 24107 Invalid, 13544 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1022 Valid, 12522 Invalid, 0 Unknown, 0 Unchecked, 16.9s Time] [2024-11-27 23:37:47,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5753 states. [2024-11-27 23:37:48,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5753 to 5735. [2024-11-27 23:37:48,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5735 states, 3445 states have (on average 1.8522496371552974) internal successors, (6381), 5725 states have internal predecessors, (6381), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 3 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-27 23:37:48,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5735 states to 5735 states and 10393 transitions. [2024-11-27 23:37:48,796 INFO L78 Accepts]: Start accepts. Automaton has 5735 states and 10393 transitions. Word has length 97 [2024-11-27 23:37:48,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:37:48,797 INFO L471 AbstractCegarLoop]: Abstraction has 5735 states and 10393 transitions. [2024-11-27 23:37:48,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 9.058823529411764) internal successors, (154), 20 states have internal predecessors, (154), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:37:48,797 INFO L276 IsEmpty]: Start isEmpty. Operand 5735 states and 10393 transitions. [2024-11-27 23:37:48,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-27 23:37:48,798 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:37:48,798 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:37:48,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 23:37:48,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-27 23:37:48,998 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr88REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:37:49,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:37:49,004 INFO L85 PathProgramCache]: Analyzing trace with hash -714594708, now seen corresponding path program 1 times [2024-11-27 23:37:49,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:37:49,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506344386] [2024-11-27 23:37:49,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:37:49,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:37:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:37:49,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:37:49,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:37:49,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506344386] [2024-11-27 23:37:49,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506344386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:37:49,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:37:49,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-27 23:37:49,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555138997] [2024-11-27 23:37:49,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:37:49,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 23:37:49,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:37:49,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 23:37:49,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:37:49,898 INFO L87 Difference]: Start difference. First operand 5735 states and 10393 transitions. Second operand has 15 states, 13 states have (on average 7.461538461538462) internal successors, (97), 14 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:38:02,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:38:02,371 INFO L93 Difference]: Finished difference Result 5760 states and 10424 transitions. [2024-11-27 23:38:02,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:38:02,372 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.461538461538462) internal successors, (97), 14 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2024-11-27 23:38:02,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:38:02,385 INFO L225 Difference]: With dead ends: 5760 [2024-11-27 23:38:02,385 INFO L226 Difference]: Without dead ends: 5760 [2024-11-27 23:38:02,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2024-11-27 23:38:02,387 INFO L435 NwaCegarLoop]: 2618 mSDtfsCounter, 1891 mSDsluCounter, 15922 mSDsCounter, 0 mSdLazyCounter, 11638 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 18540 SdHoareTripleChecker+Invalid, 12152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 11638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:38:02,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2395 Valid, 18540 Invalid, 12152 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [514 Valid, 11638 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2024-11-27 23:38:02,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5760 states. [2024-11-27 23:38:03,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5760 to 5756. [2024-11-27 23:38:03,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5756 states, 3465 states have (on average 1.8481962481962482) internal successors, (6404), 5744 states have internal predecessors, (6404), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:38:03,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5756 states to 5756 states and 10418 transitions. [2024-11-27 23:38:03,020 INFO L78 Accepts]: Start accepts. Automaton has 5756 states and 10418 transitions. Word has length 99 [2024-11-27 23:38:03,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:38:03,020 INFO L471 AbstractCegarLoop]: Abstraction has 5756 states and 10418 transitions. [2024-11-27 23:38:03,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.461538461538462) internal successors, (97), 14 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:38:03,020 INFO L276 IsEmpty]: Start isEmpty. Operand 5756 states and 10418 transitions. [2024-11-27 23:38:03,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-27 23:38:03,021 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:38:03,021 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:03,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-27 23:38:03,021 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr89REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:38:03,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:03,026 INFO L85 PathProgramCache]: Analyzing trace with hash -714594707, now seen corresponding path program 1 times [2024-11-27 23:38:03,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:03,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394315459] [2024-11-27 23:38:03,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:03,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:04,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:04,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:04,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394315459] [2024-11-27 23:38:04,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394315459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:04,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:04,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:38:04,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875623402] [2024-11-27 23:38:04,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:04,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:38:04,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:04,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:38:04,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:38:04,154 INFO L87 Difference]: Start difference. First operand 5756 states and 10418 transitions. Second operand has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 12 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:38:12,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:38:12,043 INFO L93 Difference]: Finished difference Result 5759 states and 10422 transitions. [2024-11-27 23:38:12,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:38:12,043 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 12 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2024-11-27 23:38:12,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:38:12,055 INFO L225 Difference]: With dead ends: 5759 [2024-11-27 23:38:12,055 INFO L226 Difference]: Without dead ends: 5759 [2024-11-27 23:38:12,055 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:38:12,056 INFO L435 NwaCegarLoop]: 2622 mSDtfsCounter, 1904 mSDsluCounter, 9640 mSDsCounter, 0 mSdLazyCounter, 5571 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2408 SdHoareTripleChecker+Valid, 12262 SdHoareTripleChecker+Invalid, 6083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 5571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:38:12,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2408 Valid, 12262 Invalid, 6083 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [512 Valid, 5571 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-11-27 23:38:12,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5759 states. [2024-11-27 23:38:12,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5759 to 5756. [2024-11-27 23:38:12,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5756 states, 3465 states have (on average 1.8476190476190477) internal successors, (6402), 5744 states have internal predecessors, (6402), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:38:12,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5756 states to 5756 states and 10416 transitions. [2024-11-27 23:38:12,738 INFO L78 Accepts]: Start accepts. Automaton has 5756 states and 10416 transitions. Word has length 99 [2024-11-27 23:38:12,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:38:12,738 INFO L471 AbstractCegarLoop]: Abstraction has 5756 states and 10416 transitions. [2024-11-27 23:38:12,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 12 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:38:12,739 INFO L276 IsEmpty]: Start isEmpty. Operand 5756 states and 10416 transitions. [2024-11-27 23:38:12,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-27 23:38:12,740 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:38:12,740 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:12,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-27 23:38:12,741 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr88REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:38:12,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:12,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1371901650, now seen corresponding path program 1 times [2024-11-27 23:38:12,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:12,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057740157] [2024-11-27 23:38:12,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:12,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:13,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:13,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:13,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057740157] [2024-11-27 23:38:13,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057740157] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:13,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168856726] [2024-11-27 23:38:13,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:13,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:13,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:13,664 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:38:13,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:38:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:14,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-27 23:38:14,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:38:14,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 23:38:14,233 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-27 23:38:14,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-27 23:38:14,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:38:14,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-27 23:38:14,714 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:38:14,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:38:14,857 INFO L349 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2024-11-27 23:38:14,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 31 [2024-11-27 23:38:15,026 INFO L349 Elim1Store]: treesize reduction 29, result has 14.7 percent of original size [2024-11-27 23:38:15,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 48 [2024-11-27 23:38:15,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-27 23:38:15,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-27 23:38:15,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:15,112 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:38:15,246 WARN L851 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_#t~mem56#1.offset| Int) (v_ArrVal_1481 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base|) (+ |ULTIMATE.start_main_#t~mem56#1.offset| 16) |c_ULTIMATE.start_main_~user~0#1.base|)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1481)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-27 23:38:15,385 WARN L851 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_#t~mem56#1.offset| Int) (v_ArrVal_1484 (Array Int Int)) (v_ArrVal_1481 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1484))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (store .cse2 .cse3 (store (select .cse2 .cse3) (+ |ULTIMATE.start_main_#t~mem56#1.offset| 16) |c_ULTIMATE.start_main_~user~0#1.base|)))))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1481)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-27 23:38:15,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168856726] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:15,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:38:15,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 24 [2024-11-27 23:38:15,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494825145] [2024-11-27 23:38:15,388 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:38:15,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-27 23:38:15,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:15,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-27 23:38:15,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=617, Unknown=30, NotChecked=106, Total=870 [2024-11-27 23:38:15,389 INFO L87 Difference]: Start difference. First operand 5756 states and 10416 transitions. Second operand has 25 states, 22 states have (on average 7.2727272727272725) internal successors, (160), 24 states have internal predecessors, (160), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:38:29,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:38:29,801 INFO L93 Difference]: Finished difference Result 5758 states and 10420 transitions. [2024-11-27 23:38:29,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 23:38:29,801 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 7.2727272727272725) internal successors, (160), 24 states have internal predecessors, (160), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 100 [2024-11-27 23:38:29,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:38:29,815 INFO L225 Difference]: With dead ends: 5758 [2024-11-27 23:38:29,815 INFO L226 Difference]: Without dead ends: 5758 [2024-11-27 23:38:29,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=140, Invalid=768, Unknown=30, NotChecked=118, Total=1056 [2024-11-27 23:38:29,816 INFO L435 NwaCegarLoop]: 2617 mSDtfsCounter, 1860 mSDsluCounter, 19138 mSDsCounter, 0 mSdLazyCounter, 13868 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2364 SdHoareTripleChecker+Valid, 21755 SdHoareTripleChecker+Invalid, 14382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 13868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:38:29,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2364 Valid, 21755 Invalid, 14382 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [514 Valid, 13868 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2024-11-27 23:38:29,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5758 states. [2024-11-27 23:38:30,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5758 to 5755. [2024-11-27 23:38:30,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5755 states, 3465 states have (on average 1.847041847041847) internal successors, (6400), 5743 states have internal predecessors, (6400), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:38:30,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5755 states to 5755 states and 10414 transitions. [2024-11-27 23:38:30,570 INFO L78 Accepts]: Start accepts. Automaton has 5755 states and 10414 transitions. Word has length 100 [2024-11-27 23:38:30,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:38:30,570 INFO L471 AbstractCegarLoop]: Abstraction has 5755 states and 10414 transitions. [2024-11-27 23:38:30,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 7.2727272727272725) internal successors, (160), 24 states have internal predecessors, (160), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:38:30,570 INFO L276 IsEmpty]: Start isEmpty. Operand 5755 states and 10414 transitions. [2024-11-27 23:38:30,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-27 23:38:30,572 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:38:30,572 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:30,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 23:38:30,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-27 23:38:30,773 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr89REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:38:30,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:30,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1371901651, now seen corresponding path program 1 times [2024-11-27 23:38:30,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:30,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846883282] [2024-11-27 23:38:30,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:30,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:32,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:32,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:32,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846883282] [2024-11-27 23:38:32,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846883282] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:32,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487588499] [2024-11-27 23:38:32,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:32,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:32,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:32,023 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:38:32,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:38:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:32,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-27 23:38:32,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:38:32,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 23:38:32,519 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-27 23:38:32,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-27 23:38:32,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 23:38:32,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:38:32,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:38:32,741 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:38:32,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 65 [2024-11-27 23:38:32,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 23 [2024-11-27 23:38:32,837 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:38:32,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 65 [2024-11-27 23:38:32,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 23 [2024-11-27 23:38:32,938 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:38:32,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 65 [2024-11-27 23:38:32,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 32 [2024-11-27 23:38:33,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 21 [2024-11-27 23:38:33,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2024-11-27 23:38:33,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:33,060 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:38:33,383 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1649 (Array Int Int))) (let ((.cse0 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1649))) (or (< (+ 4 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) 0) (forall ((v_ArrVal_1648 (Array Int Int)) (v_ArrVal_1651 (Array Int Int))) (<= 0 (+ (select (select (store .cse0 (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1648) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1651) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8)))))) (forall ((v_ArrVal_1649 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1649))) (or (< (+ 4 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) 0) (forall ((v_ArrVal_1648 (Array Int Int)) (v_ArrVal_1651 (Array Int Int)) (v_ArrVal_1650 (Array Int Int))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1648))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ (select (select (store .cse2 .cse3 v_ArrVal_1651) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 12) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_1650) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))))))) is different from false [2024-11-27 23:38:33,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487588499] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:33,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:38:33,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2024-11-27 23:38:33,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905034114] [2024-11-27 23:38:33,857 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:38:33,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-27 23:38:33,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:33,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-27 23:38:33,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=747, Unknown=9, NotChecked=56, Total=930 [2024-11-27 23:38:33,861 INFO L87 Difference]: Start difference. First operand 5755 states and 10414 transitions. Second operand has 24 states, 21 states have (on average 7.619047619047619) internal successors, (160), 24 states have internal predecessors, (160), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:38:47,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:38:47,264 INFO L93 Difference]: Finished difference Result 5757 states and 10418 transitions. [2024-11-27 23:38:47,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:38:47,264 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 7.619047619047619) internal successors, (160), 24 states have internal predecessors, (160), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 100 [2024-11-27 23:38:47,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:38:47,274 INFO L225 Difference]: With dead ends: 5757 [2024-11-27 23:38:47,274 INFO L226 Difference]: Without dead ends: 5757 [2024-11-27 23:38:47,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=193, Invalid=1062, Unknown=9, NotChecked=68, Total=1332 [2024-11-27 23:38:47,275 INFO L435 NwaCegarLoop]: 2617 mSDtfsCounter, 1872 mSDsluCounter, 22952 mSDsCounter, 0 mSdLazyCounter, 12975 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2376 SdHoareTripleChecker+Valid, 25569 SdHoareTripleChecker+Invalid, 13492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 12975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:38:47,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2376 Valid, 25569 Invalid, 13492 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [517 Valid, 12975 Invalid, 0 Unknown, 0 Unchecked, 12.9s Time] [2024-11-27 23:38:47,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5757 states. [2024-11-27 23:38:47,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5757 to 5733. [2024-11-27 23:38:47,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5733 states, 3445 states have (on average 1.851088534107402) internal successors, (6377), 5723 states have internal predecessors, (6377), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 3 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-27 23:38:47,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5733 states to 5733 states and 10389 transitions. [2024-11-27 23:38:47,798 INFO L78 Accepts]: Start accepts. Automaton has 5733 states and 10389 transitions. Word has length 100 [2024-11-27 23:38:47,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:38:47,798 INFO L471 AbstractCegarLoop]: Abstraction has 5733 states and 10389 transitions. [2024-11-27 23:38:47,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 7.619047619047619) internal successors, (160), 24 states have internal predecessors, (160), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:38:47,799 INFO L276 IsEmpty]: Start isEmpty. Operand 5733 states and 10389 transitions. [2024-11-27 23:38:47,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-27 23:38:47,799 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:38:47,800 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:47,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 23:38:48,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-27 23:38:48,000 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr92REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:38:48,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:48,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1662600624, now seen corresponding path program 1 times [2024-11-27 23:38:48,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:48,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789190631] [2024-11-27 23:38:48,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:48,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:48,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:48,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:48,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789190631] [2024-11-27 23:38:48,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789190631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:48,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:48,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:38:48,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594453583] [2024-11-27 23:38:48,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:48,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:38:48,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:48,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:38:48,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:38:48,694 INFO L87 Difference]: Start difference. First operand 5733 states and 10389 transitions. Second operand has 13 states, 12 states have (on average 8.333333333333334) internal successors, (100), 13 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:38:56,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:38:56,305 INFO L93 Difference]: Finished difference Result 5764 states and 10426 transitions. [2024-11-27 23:38:56,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:38:56,306 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.333333333333334) internal successors, (100), 13 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2024-11-27 23:38:56,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:38:56,314 INFO L225 Difference]: With dead ends: 5764 [2024-11-27 23:38:56,315 INFO L226 Difference]: Without dead ends: 5764 [2024-11-27 23:38:56,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2024-11-27 23:38:56,315 INFO L435 NwaCegarLoop]: 2620 mSDtfsCounter, 1911 mSDsluCounter, 13254 mSDsCounter, 0 mSdLazyCounter, 7887 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2415 SdHoareTripleChecker+Valid, 15874 SdHoareTripleChecker+Invalid, 8401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 7887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:38:56,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2415 Valid, 15874 Invalid, 8401 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [514 Valid, 7887 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-11-27 23:38:56,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5764 states. [2024-11-27 23:38:56,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5764 to 5760. [2024-11-27 23:38:56,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5760 states, 3471 states have (on average 1.8455776433304523) internal successors, (6406), 5748 states have internal predecessors, (6406), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:38:56,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5760 states to 5760 states and 10420 transitions. [2024-11-27 23:38:56,801 INFO L78 Accepts]: Start accepts. Automaton has 5760 states and 10420 transitions. Word has length 102 [2024-11-27 23:38:56,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:38:56,801 INFO L471 AbstractCegarLoop]: Abstraction has 5760 states and 10420 transitions. [2024-11-27 23:38:56,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.333333333333334) internal successors, (100), 13 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:38:56,802 INFO L276 IsEmpty]: Start isEmpty. Operand 5760 states and 10420 transitions. [2024-11-27 23:38:56,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-27 23:38:56,802 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:38:56,802 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:56,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-27 23:38:56,803 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr93REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:38:56,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:56,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1662600625, now seen corresponding path program 1 times [2024-11-27 23:38:56,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:56,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619650493] [2024-11-27 23:38:56,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:56,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:57,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:57,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:57,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619650493] [2024-11-27 23:38:57,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619650493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:57,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:57,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:38:57,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028209233] [2024-11-27 23:38:57,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:57,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:38:57,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:57,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:38:57,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:38:57,974 INFO L87 Difference]: Start difference. First operand 5760 states and 10420 transitions. Second operand has 13 states, 12 states have (on average 8.333333333333334) internal successors, (100), 13 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:39:07,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:39:07,038 INFO L93 Difference]: Finished difference Result 5763 states and 10424 transitions. [2024-11-27 23:39:07,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:39:07,039 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.333333333333334) internal successors, (100), 13 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2024-11-27 23:39:07,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:39:07,048 INFO L225 Difference]: With dead ends: 5763 [2024-11-27 23:39:07,048 INFO L226 Difference]: Without dead ends: 5763 [2024-11-27 23:39:07,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:39:07,049 INFO L435 NwaCegarLoop]: 2621 mSDtfsCounter, 1885 mSDsluCounter, 13197 mSDsCounter, 0 mSdLazyCounter, 7922 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2389 SdHoareTripleChecker+Valid, 15818 SdHoareTripleChecker+Invalid, 8434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 7922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:39:07,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2389 Valid, 15818 Invalid, 8434 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [512 Valid, 7922 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2024-11-27 23:39:07,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5763 states. [2024-11-27 23:39:07,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5763 to 5760. [2024-11-27 23:39:07,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5760 states, 3471 states have (on average 1.8450014405070585) internal successors, (6404), 5748 states have internal predecessors, (6404), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:39:07,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5760 states to 5760 states and 10418 transitions. [2024-11-27 23:39:07,564 INFO L78 Accepts]: Start accepts. Automaton has 5760 states and 10418 transitions. Word has length 102 [2024-11-27 23:39:07,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:39:07,564 INFO L471 AbstractCegarLoop]: Abstraction has 5760 states and 10418 transitions. [2024-11-27 23:39:07,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.333333333333334) internal successors, (100), 13 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:39:07,565 INFO L276 IsEmpty]: Start isEmpty. Operand 5760 states and 10418 transitions. [2024-11-27 23:39:07,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-27 23:39:07,565 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:39:07,565 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:39:07,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-27 23:39:07,565 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr92REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:39:07,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:39:07,571 INFO L85 PathProgramCache]: Analyzing trace with hash -586073206, now seen corresponding path program 1 times [2024-11-27 23:39:07,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:39:07,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339920984] [2024-11-27 23:39:07,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:39:07,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:39:07,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:39:08,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:39:08,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:39:08,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339920984] [2024-11-27 23:39:08,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339920984] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:39:08,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416943180] [2024-11-27 23:39:08,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:39:08,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:39:08,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:39:08,496 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:39:08,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 23:39:08,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:39:08,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-27 23:39:08,850 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:39:08,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 23:39:09,028 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-27 23:39:09,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-27 23:39:09,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:39:09,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-27 23:39:09,376 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:39:09,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:39:09,493 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:39:09,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:39:09,606 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:39:09,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:39:09,680 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:39:09,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:39:09,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-27 23:39:09,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:39:09,746 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:39:09,871 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1988 (Array Int Int)) (v_ArrVal_1987 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_1987))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1988)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-27 23:39:14,002 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1988 (Array Int Int)) (v_ArrVal_1987 (Array Int Int)) (v_ArrVal_1986 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1986))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1987)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1988)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-27 23:39:14,138 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1988 (Array Int Int)) (v_ArrVal_1987 (Array Int Int)) (v_ArrVal_1986 (Array Int Int)) (v_ArrVal_1991 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1991))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1986)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1987)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1988)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-27 23:39:14,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416943180] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:39:14,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:39:14,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11] total 25 [2024-11-27 23:39:14,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848938426] [2024-11-27 23:39:14,141 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:39:14,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-27 23:39:14,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:39:14,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-27 23:39:14,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=710, Unknown=36, NotChecked=174, Total=1056 [2024-11-27 23:39:14,143 INFO L87 Difference]: Start difference. First operand 5760 states and 10418 transitions. Second operand has 26 states, 23 states have (on average 7.217391304347826) internal successors, (166), 25 states have internal predecessors, (166), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:39:36,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:39:36,123 INFO L93 Difference]: Finished difference Result 5762 states and 10422 transitions. [2024-11-27 23:39:36,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 23:39:36,124 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 7.217391304347826) internal successors, (166), 25 states have internal predecessors, (166), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 103 [2024-11-27 23:39:36,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:39:36,134 INFO L225 Difference]: With dead ends: 5762 [2024-11-27 23:39:36,134 INFO L226 Difference]: Without dead ends: 5762 [2024-11-27 23:39:36,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=160, Invalid=871, Unknown=37, NotChecked=192, Total=1260 [2024-11-27 23:39:36,135 INFO L435 NwaCegarLoop]: 2616 mSDtfsCounter, 1857 mSDsluCounter, 22840 mSDsCounter, 0 mSdLazyCounter, 16023 mSolverCounterSat, 515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 25456 SdHoareTripleChecker+Invalid, 16538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 16023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:39:36,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2361 Valid, 25456 Invalid, 16538 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [515 Valid, 16023 Invalid, 0 Unknown, 0 Unchecked, 21.4s Time] [2024-11-27 23:39:36,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5762 states. [2024-11-27 23:39:36,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5762 to 5759. [2024-11-27 23:39:36,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5759 states, 3471 states have (on average 1.8444252376836647) internal successors, (6402), 5747 states have internal predecessors, (6402), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:39:36,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5759 states to 5759 states and 10416 transitions. [2024-11-27 23:39:36,695 INFO L78 Accepts]: Start accepts. Automaton has 5759 states and 10416 transitions. Word has length 103 [2024-11-27 23:39:36,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:39:36,695 INFO L471 AbstractCegarLoop]: Abstraction has 5759 states and 10416 transitions. [2024-11-27 23:39:36,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 7.217391304347826) internal successors, (166), 25 states have internal predecessors, (166), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:39:36,696 INFO L276 IsEmpty]: Start isEmpty. Operand 5759 states and 10416 transitions. [2024-11-27 23:39:36,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-27 23:39:36,696 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:39:36,696 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:39:36,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-27 23:39:36,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-27 23:39:36,897 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr93REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:39:36,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:39:36,898 INFO L85 PathProgramCache]: Analyzing trace with hash -586073205, now seen corresponding path program 1 times [2024-11-27 23:39:36,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:39:36,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811324719] [2024-11-27 23:39:36,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:39:36,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:39:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:39:38,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:39:38,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:39:38,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811324719] [2024-11-27 23:39:38,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811324719] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:39:38,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796674185] [2024-11-27 23:39:38,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:39:38,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:39:38,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:39:38,218 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:39:38,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 23:39:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:39:38,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-27 23:39:38,571 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:39:38,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 23:39:38,827 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-27 23:39:38,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-27 23:39:38,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 23:39:38,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-27 23:39:38,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:39:39,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-27 23:39:39,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:39:39,207 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:39:39,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-27 23:39:39,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:39:39,332 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:39:39,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-27 23:39:39,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:39:39,461 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:39:39,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-27 23:39:39,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:39:39,565 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:39:39,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-27 23:39:39,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:39:39,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-27 23:39:39,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:39:39,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:39:39,616 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:39:39,727 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_2171 (Array Int Int)) (v_ArrVal_2172 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_2172) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 24) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_2171) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_2172 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_2172) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 20))))) is different from false [2024-11-27 23:39:39,743 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_2171 (Array Int Int)) (v_ArrVal_2172 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_2172) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 24) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_2171) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_2172 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_2172) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 20)))))) is different from false [2024-11-27 23:39:39,769 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_2171 (Array Int Int)) (v_ArrVal_2170 (Array Int Int)) (v_ArrVal_2169 (Array Int Int)) (v_ArrVal_2172 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_2170))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_2169) .cse0 v_ArrVal_2172) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 24) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_2171) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_2170 (Array Int Int)) (v_ArrVal_2169 (Array Int Int)) (v_ArrVal_2172 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_2169) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_2170) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2172) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 20))))) is different from false [2024-11-27 23:39:39,798 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_2171 (Array Int Int)) (v_ArrVal_2170 (Array Int Int)) (v_ArrVal_2169 (Array Int Int)) (v_ArrVal_2172 (Array Int Int))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_2170))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_2169) .cse1 v_ArrVal_2172) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 24) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_2171) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_2170 (Array Int Int)) (v_ArrVal_2169 (Array Int Int)) (v_ArrVal_2172 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_2169) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_2170) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_2172) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 20)))))) is different from false [2024-11-27 23:39:39,841 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_2170 (Array Int Int)) (v_ArrVal_2169 (Array Int Int)) (v_ArrVal_2168 (Array Int Int)) (v_ArrVal_2167 (Array Int Int)) (v_ArrVal_2172 (Array Int Int))) (<= 0 (+ (select (select (let ((.cse1 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_2167))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_2168) .cse0 v_ArrVal_2169) (select (select (store .cse1 .cse0 v_ArrVal_2170) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_2172))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 20))) (forall ((v_ArrVal_2171 (Array Int Int)) (v_ArrVal_2170 (Array Int Int)) (v_ArrVal_2169 (Array Int Int)) (v_ArrVal_2168 (Array Int Int)) (v_ArrVal_2167 (Array Int Int)) (v_ArrVal_2172 (Array Int Int))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_2167))) (let ((.cse3 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse5 (store .cse6 .cse3 v_ArrVal_2170))) (let ((.cse4 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (<= (+ (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_2168) .cse3 v_ArrVal_2169) .cse4 v_ArrVal_2172) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 24) (select |c_#length| (select (select (store .cse5 .cse4 v_ArrVal_2171) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))))) is different from false [2024-11-27 23:39:40,137 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_2171 (Array Int Int)) (v_ArrVal_2170 (Array Int Int)) (v_ArrVal_2169 (Array Int Int)) (v_ArrVal_2168 (Array Int Int)) (v_ArrVal_2178 (Array Int Int)) (v_ArrVal_2167 (Array Int Int)) (v_ArrVal_2177 (Array Int Int)) (v_ArrVal_2172 (Array Int Int))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2178))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_2167))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_2170))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (<= (+ (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2177) .cse0 v_ArrVal_2168) .cse1 v_ArrVal_2169) .cse2 v_ArrVal_2172) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 24) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_2171) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) (forall ((v_ArrVal_2170 (Array Int Int)) (v_ArrVal_2169 (Array Int Int)) (v_ArrVal_2168 (Array Int Int)) (v_ArrVal_2178 (Array Int Int)) (v_ArrVal_2167 (Array Int Int)) (v_ArrVal_2177 (Array Int Int)) (v_ArrVal_2172 (Array Int Int))) (<= 0 (+ (select (select (let ((.cse10 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2178))) (let ((.cse7 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse9 (store .cse10 .cse7 v_ArrVal_2167))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2177) .cse7 v_ArrVal_2168) .cse8 v_ArrVal_2169) (select (select (store .cse9 .cse8 v_ArrVal_2170) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_2172))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 20))))) is different from false [2024-11-27 23:39:40,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796674185] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:39:40,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:39:40,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 20 [2024-11-27 23:39:40,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105246800] [2024-11-27 23:39:40,141 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:39:40,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 23:39:40,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:39:40,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 23:39:40,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=463, Unknown=10, NotChecked=294, Total=870 [2024-11-27 23:39:40,143 INFO L87 Difference]: Start difference. First operand 5759 states and 10416 transitions. Second operand has 21 states, 18 states have (on average 8.722222222222221) internal successors, (157), 21 states have internal predecessors, (157), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:40:01,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:40:01,022 INFO L93 Difference]: Finished difference Result 5761 states and 10420 transitions. [2024-11-27 23:40:01,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 23:40:01,022 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 8.722222222222221) internal successors, (157), 21 states have internal predecessors, (157), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 103 [2024-11-27 23:40:01,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:40:01,032 INFO L225 Difference]: With dead ends: 5761 [2024-11-27 23:40:01,032 INFO L226 Difference]: Without dead ends: 5761 [2024-11-27 23:40:01,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=164, Invalid=780, Unknown=10, NotChecked=378, Total=1332 [2024-11-27 23:40:01,033 INFO L435 NwaCegarLoop]: 2619 mSDtfsCounter, 1870 mSDsluCounter, 19110 mSDsCounter, 0 mSdLazyCounter, 11873 mSolverCounterSat, 1019 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2374 SdHoareTripleChecker+Valid, 21729 SdHoareTripleChecker+Invalid, 12892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1019 IncrementalHoareTripleChecker+Valid, 11873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:40:01,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2374 Valid, 21729 Invalid, 12892 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1019 Valid, 11873 Invalid, 0 Unknown, 0 Unchecked, 20.3s Time] [2024-11-27 23:40:01,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5761 states. [2024-11-27 23:40:01,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5761 to 5731. [2024-11-27 23:40:01,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5731 states, 3445 states have (on average 1.8499274310595066) internal successors, (6373), 5721 states have internal predecessors, (6373), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 3 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-27 23:40:01,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5731 states to 5731 states and 10385 transitions. [2024-11-27 23:40:01,688 INFO L78 Accepts]: Start accepts. Automaton has 5731 states and 10385 transitions. Word has length 103 [2024-11-27 23:40:01,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:40:01,689 INFO L471 AbstractCegarLoop]: Abstraction has 5731 states and 10385 transitions. [2024-11-27 23:40:01,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 8.722222222222221) internal successors, (157), 21 states have internal predecessors, (157), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:40:01,689 INFO L276 IsEmpty]: Start isEmpty. Operand 5731 states and 10385 transitions. [2024-11-27 23:40:01,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-27 23:40:01,689 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:40:01,689 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:40:01,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 23:40:01,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-27 23:40:01,890 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr96REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:40:01,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:40:01,899 INFO L85 PathProgramCache]: Analyzing trace with hash 98212338, now seen corresponding path program 1 times [2024-11-27 23:40:01,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:40:01,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009488556] [2024-11-27 23:40:01,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:40:01,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:40:01,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:40:02,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:40:02,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:40:02,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009488556] [2024-11-27 23:40:02,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009488556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:40:02,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:40:02,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-27 23:40:02,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299247878] [2024-11-27 23:40:02,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:40:02,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 23:40:02,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:40:02,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 23:40:02,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:40:02,997 INFO L87 Difference]: Start difference. First operand 5731 states and 10385 transitions. Second operand has 14 states, 13 states have (on average 8.0) internal successors, (104), 14 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:40:14,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:40:14,238 INFO L93 Difference]: Finished difference Result 5770 states and 10430 transitions. [2024-11-27 23:40:14,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:40:14,238 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.0) internal successors, (104), 14 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2024-11-27 23:40:14,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:40:14,254 INFO L225 Difference]: With dead ends: 5770 [2024-11-27 23:40:14,254 INFO L226 Difference]: Without dead ends: 5770 [2024-11-27 23:40:14,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:40:14,255 INFO L435 NwaCegarLoop]: 2619 mSDtfsCounter, 1908 mSDsluCounter, 11722 mSDsCounter, 0 mSdLazyCounter, 9412 mSolverCounterSat, 515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2412 SdHoareTripleChecker+Valid, 14341 SdHoareTripleChecker+Invalid, 9927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 9412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:40:14,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2412 Valid, 14341 Invalid, 9927 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [515 Valid, 9412 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2024-11-27 23:40:14,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5770 states. [2024-11-27 23:40:14,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5770 to 5766. [2024-11-27 23:40:14,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5766 states, 3479 states have (on average 1.8424834722621444) internal successors, (6410), 5754 states have internal predecessors, (6410), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:40:14,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5766 states to 5766 states and 10424 transitions. [2024-11-27 23:40:14,823 INFO L78 Accepts]: Start accepts. Automaton has 5766 states and 10424 transitions. Word has length 106 [2024-11-27 23:40:14,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:40:14,823 INFO L471 AbstractCegarLoop]: Abstraction has 5766 states and 10424 transitions. [2024-11-27 23:40:14,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.0) internal successors, (104), 14 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:40:14,823 INFO L276 IsEmpty]: Start isEmpty. Operand 5766 states and 10424 transitions. [2024-11-27 23:40:14,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-27 23:40:14,824 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:40:14,824 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:40:14,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-27 23:40:14,824 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr97REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:40:14,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:40:14,828 INFO L85 PathProgramCache]: Analyzing trace with hash 98212339, now seen corresponding path program 1 times [2024-11-27 23:40:14,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:40:14,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021489623] [2024-11-27 23:40:14,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:40:14,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:40:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:40:16,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:40:16,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:40:16,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021489623] [2024-11-27 23:40:16,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021489623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:40:16,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:40:16,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-27 23:40:16,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536540739] [2024-11-27 23:40:16,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:40:16,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 23:40:16,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:40:16,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 23:40:16,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:40:16,199 INFO L87 Difference]: Start difference. First operand 5766 states and 10424 transitions. Second operand has 18 states, 16 states have (on average 6.5) internal successors, (104), 17 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:40:34,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:40:34,210 INFO L93 Difference]: Finished difference Result 5769 states and 10428 transitions. [2024-11-27 23:40:34,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 23:40:34,210 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 6.5) internal successors, (104), 17 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2024-11-27 23:40:34,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:40:34,221 INFO L225 Difference]: With dead ends: 5769 [2024-11-27 23:40:34,221 INFO L226 Difference]: Without dead ends: 5769 [2024-11-27 23:40:34,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2024-11-27 23:40:34,223 INFO L435 NwaCegarLoop]: 2617 mSDtfsCounter, 1887 mSDsluCounter, 17097 mSDsCounter, 0 mSdLazyCounter, 13434 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2391 SdHoareTripleChecker+Valid, 19714 SdHoareTripleChecker+Invalid, 13950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 13434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:40:34,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2391 Valid, 19714 Invalid, 13950 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [516 Valid, 13434 Invalid, 0 Unknown, 0 Unchecked, 17.3s Time] [2024-11-27 23:40:34,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5769 states. [2024-11-27 23:40:34,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5769 to 5766. [2024-11-27 23:40:34,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5766 states, 3479 states have (on average 1.841908594423685) internal successors, (6408), 5754 states have internal predecessors, (6408), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:40:34,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5766 states to 5766 states and 10422 transitions. [2024-11-27 23:40:34,655 INFO L78 Accepts]: Start accepts. Automaton has 5766 states and 10422 transitions. Word has length 106 [2024-11-27 23:40:34,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:40:34,656 INFO L471 AbstractCegarLoop]: Abstraction has 5766 states and 10422 transitions. [2024-11-27 23:40:34,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 6.5) internal successors, (104), 17 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:40:34,656 INFO L276 IsEmpty]: Start isEmpty. Operand 5766 states and 10422 transitions. [2024-11-27 23:40:34,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-27 23:40:34,656 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:40:34,656 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:40:34,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-27 23:40:34,656 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr96REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:40:34,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:40:34,657 INFO L85 PathProgramCache]: Analyzing trace with hash 886051532, now seen corresponding path program 1 times [2024-11-27 23:40:34,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:40:34,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718901692] [2024-11-27 23:40:34,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:40:34,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:40:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:40:35,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:40:35,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:40:35,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718901692] [2024-11-27 23:40:35,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718901692] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:40:35,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773748862] [2024-11-27 23:40:35,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:40:35,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:40:35,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:40:35,626 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:40:35,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 23:40:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:40:35,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-27 23:40:35,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:40:35,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 23:40:36,126 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-27 23:40:36,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-27 23:40:36,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:40:36,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-27 23:40:36,499 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:40:36,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:40:36,628 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:40:36,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:40:36,710 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:40:36,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:40:36,797 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:40:36,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:40:36,885 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:40:36,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:40:36,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-27 23:40:37,003 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-27 23:40:37,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-27 23:40:37,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:40:37,011 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:40:38,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773748862] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:40:38,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:40:38,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 26 [2024-11-27 23:40:38,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703699395] [2024-11-27 23:40:38,033 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:40:38,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-27 23:40:38,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:40:38,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-27 23:40:38,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1165, Unknown=49, NotChecked=0, Total=1406 [2024-11-27 23:40:38,034 INFO L87 Difference]: Start difference. First operand 5766 states and 10422 transitions. Second operand has 27 states, 24 states have (on average 7.25) internal successors, (174), 26 states have internal predecessors, (174), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:40:57,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:40:57,922 INFO L93 Difference]: Finished difference Result 5768 states and 10426 transitions. [2024-11-27 23:40:57,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 23:40:57,922 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 7.25) internal successors, (174), 26 states have internal predecessors, (174), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 107 [2024-11-27 23:40:57,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:40:57,929 INFO L225 Difference]: With dead ends: 5768 [2024-11-27 23:40:57,929 INFO L226 Difference]: Without dead ends: 5768 [2024-11-27 23:40:57,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 107 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=218, Invalid=1373, Unknown=49, NotChecked=0, Total=1640 [2024-11-27 23:40:57,930 INFO L435 NwaCegarLoop]: 2615 mSDtfsCounter, 1850 mSDsluCounter, 18133 mSDsCounter, 0 mSdLazyCounter, 14887 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2354 SdHoareTripleChecker+Valid, 20748 SdHoareTripleChecker+Invalid, 15405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 14887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:40:57,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2354 Valid, 20748 Invalid, 15405 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [518 Valid, 14887 Invalid, 0 Unknown, 0 Unchecked, 19.3s Time] [2024-11-27 23:40:57,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5768 states. [2024-11-27 23:40:58,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5768 to 5765. [2024-11-27 23:40:58,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5765 states, 3479 states have (on average 1.8413337165852257) internal successors, (6406), 5753 states have internal predecessors, (6406), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:40:58,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5765 states to 5765 states and 10420 transitions. [2024-11-27 23:40:58,448 INFO L78 Accepts]: Start accepts. Automaton has 5765 states and 10420 transitions. Word has length 107 [2024-11-27 23:40:58,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:40:58,448 INFO L471 AbstractCegarLoop]: Abstraction has 5765 states and 10420 transitions. [2024-11-27 23:40:58,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 7.25) internal successors, (174), 26 states have internal predecessors, (174), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:40:58,448 INFO L276 IsEmpty]: Start isEmpty. Operand 5765 states and 10420 transitions. [2024-11-27 23:40:58,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-27 23:40:58,448 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:40:58,449 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:40:58,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 23:40:58,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:40:58,649 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr97REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:40:58,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:40:58,650 INFO L85 PathProgramCache]: Analyzing trace with hash 886051533, now seen corresponding path program 1 times [2024-11-27 23:40:58,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:40:58,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145180398] [2024-11-27 23:40:58,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:40:58,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:40:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:41:00,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:41:00,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:41:00,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145180398] [2024-11-27 23:41:00,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145180398] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:41:00,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274305350] [2024-11-27 23:41:00,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:41:00,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:41:00,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:41:00,207 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:41:00,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 23:41:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:41:00,547 INFO L256 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-27 23:41:00,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:41:00,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 23:41:00,785 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-27 23:41:00,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-27 23:41:00,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 23:41:00,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-27 23:41:00,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:41:01,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-27 23:41:01,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:41:01,340 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:41:01,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-27 23:41:01,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:41:01,508 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:41:01,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-27 23:41:01,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:41:01,639 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:41:01,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-27 23:41:01,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:41:01,779 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:41:01,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-27 23:41:01,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:41:01,917 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:41:01,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-27 23:41:01,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:41:01,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 18 [2024-11-27 23:41:01,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:41:02,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:41:02,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-27 23:41:02,108 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-11-27 23:41:02,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-11-27 23:41:02,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:41:02,114 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:41:08,824 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (and (or (forall ((|v_ULTIMATE.start_main_#t~malloc61#1.base_7| Int)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_7|) 0))) (forall ((v_ArrVal_2746 (Array Int Int)) (v_ArrVal_2744 (Array Int Int)) (v_ArrVal_2743 (Array Int Int)) (v_ArrVal_2742 (Array Int Int)) (v_ArrVal_2741 (Array Int Int)) (v_ArrVal_2740 (Array Int Int)) (v_ArrVal_2739 (Array Int Int))) (< 0 (+ (select (select (let ((.cse5 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_2739))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse3 (store .cse5 .cse1 v_ArrVal_2742))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_2740) .cse1 v_ArrVal_2741) .cse2 v_ArrVal_2744) (select (select (store .cse3 .cse2 v_ArrVal_2743) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_2746))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 1)))) (forall ((v_ArrVal_2746 (Array Int Int)) (v_ArrVal_2745 (Array Int Int)) (v_ArrVal_2744 (Array Int Int)) (v_ArrVal_2743 (Array Int Int)) (v_ArrVal_2742 (Array Int Int)) (v_ArrVal_2741 (Array Int Int)) (v_ArrVal_2740 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc61#1.base_7| Int) (v_ArrVal_2739 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_7|) 0)) (forall ((v_ArrVal_2747 Int)) (let ((.cse11 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_2739))) (let ((.cse6 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse10 (store .cse11 .cse6 v_ArrVal_2742))) (let ((.cse7 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse9 (store .cse10 .cse7 v_ArrVal_2743))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (<= (+ (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_2740) .cse6 v_ArrVal_2741) .cse7 v_ArrVal_2744) .cse8 v_ArrVal_2746) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 4) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc61#1.base_7| v_ArrVal_2747) (select (select (store .cse9 .cse8 v_ArrVal_2745) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))))))))))))) is different from false [2024-11-27 23:41:25,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274305350] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:41:25,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:41:25,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13] total 28 [2024-11-27 23:41:25,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204963490] [2024-11-27 23:41:25,075 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:41:25,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-27 23:41:25,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:41:25,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-27 23:41:25,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=1310, Unknown=61, NotChecked=76, Total=1640 [2024-11-27 23:41:25,077 INFO L87 Difference]: Start difference. First operand 5765 states and 10420 transitions. Second operand has 29 states, 26 states have (on average 6.653846153846154) internal successors, (173), 28 states have internal predecessors, (173), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:42:42,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:42:42,878 INFO L93 Difference]: Finished difference Result 5767 states and 10424 transitions. [2024-11-27 23:42:42,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 23:42:42,879 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 26 states have (on average 6.653846153846154) internal successors, (173), 28 states have internal predecessors, (173), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 107 [2024-11-27 23:42:42,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:42:42,888 INFO L225 Difference]: With dead ends: 5767 [2024-11-27 23:42:42,888 INFO L226 Difference]: Without dead ends: 5767 [2024-11-27 23:42:42,889 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 23.9s TimeCoverageRelationStatistics Valid=221, Invalid=1525, Unknown=64, NotChecked=82, Total=1892 [2024-11-27 23:42:42,889 INFO L435 NwaCegarLoop]: 2614 mSDtfsCounter, 1849 mSDsluCounter, 21640 mSDsCounter, 0 mSdLazyCounter, 17218 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2353 SdHoareTripleChecker+Valid, 24254 SdHoareTripleChecker+Invalid, 17734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 17218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:42:42,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2353 Valid, 24254 Invalid, 17734 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [516 Valid, 17218 Invalid, 0 Unknown, 0 Unchecked, 76.7s Time] [2024-11-27 23:42:42,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5767 states. [2024-11-27 23:42:43,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5767 to 5729. [2024-11-27 23:42:43,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5729 states, 3445 states have (on average 1.8487663280116111) internal successors, (6369), 5719 states have internal predecessors, (6369), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 3 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-27 23:42:43,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5729 states to 5729 states and 10381 transitions. [2024-11-27 23:42:43,353 INFO L78 Accepts]: Start accepts. Automaton has 5729 states and 10381 transitions. Word has length 107 [2024-11-27 23:42:43,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:42:43,354 INFO L471 AbstractCegarLoop]: Abstraction has 5729 states and 10381 transitions. [2024-11-27 23:42:43,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 26 states have (on average 6.653846153846154) internal successors, (173), 28 states have internal predecessors, (173), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:42:43,354 INFO L276 IsEmpty]: Start isEmpty. Operand 5729 states and 10381 transitions. [2024-11-27 23:42:43,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-27 23:42:43,354 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:42:43,354 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:42:43,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-27 23:42:43,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-27 23:42:43,555 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr100REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:42:43,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:42:43,563 INFO L85 PathProgramCache]: Analyzing trace with hash 971708057, now seen corresponding path program 1 times [2024-11-27 23:42:43,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:42:43,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534701682] [2024-11-27 23:42:43,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:42:43,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:42:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:42:45,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:42:45,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:42:45,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534701682] [2024-11-27 23:42:45,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534701682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:42:45,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:42:45,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-27 23:42:45,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12049834] [2024-11-27 23:42:45,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:42:45,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 23:42:45,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:42:45,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 23:42:45,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:42:45,106 INFO L87 Difference]: Start difference. First operand 5729 states and 10381 transitions. Second operand has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 15 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:43:11,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:43:11,213 INFO L93 Difference]: Finished difference Result 5774 states and 10432 transitions. [2024-11-27 23:43:11,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:43:11,213 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 15 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2024-11-27 23:43:11,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:43:11,221 INFO L225 Difference]: With dead ends: 5774 [2024-11-27 23:43:11,221 INFO L226 Difference]: Without dead ends: 5774 [2024-11-27 23:43:11,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=94, Invalid=458, Unknown=0, NotChecked=0, Total=552 [2024-11-27 23:43:11,222 INFO L435 NwaCegarLoop]: 2618 mSDtfsCounter, 1899 mSDsluCounter, 11156 mSDsCounter, 0 mSdLazyCounter, 7078 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 13774 SdHoareTripleChecker+Invalid, 7596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 7078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:43:11,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2403 Valid, 13774 Invalid, 7596 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [518 Valid, 7078 Invalid, 0 Unknown, 0 Unchecked, 25.2s Time] [2024-11-27 23:43:11,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5774 states. [2024-11-27 23:43:11,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5774 to 5770. [2024-11-27 23:43:11,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5770 states, 3485 states have (on average 1.8398852223816355) internal successors, (6412), 5758 states have internal predecessors, (6412), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:43:11,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5770 states to 5770 states and 10426 transitions. [2024-11-27 23:43:11,588 INFO L78 Accepts]: Start accepts. Automaton has 5770 states and 10426 transitions. Word has length 109 [2024-11-27 23:43:11,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:43:11,589 INFO L471 AbstractCegarLoop]: Abstraction has 5770 states and 10426 transitions. [2024-11-27 23:43:11,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 15 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:43:11,589 INFO L276 IsEmpty]: Start isEmpty. Operand 5770 states and 10426 transitions. [2024-11-27 23:43:11,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-27 23:43:11,589 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:43:11,589 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:43:11,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-27 23:43:11,590 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr101REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:43:11,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:43:11,590 INFO L85 PathProgramCache]: Analyzing trace with hash 971708058, now seen corresponding path program 1 times [2024-11-27 23:43:11,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:43:11,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523804155] [2024-11-27 23:43:11,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:43:11,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:43:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:43:14,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:43:14,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:43:14,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523804155] [2024-11-27 23:43:14,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523804155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:43:14,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:43:14,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-27 23:43:14,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441187742] [2024-11-27 23:43:14,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:43:14,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 23:43:14,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:43:14,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 23:43:14,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:43:14,130 INFO L87 Difference]: Start difference. First operand 5770 states and 10426 transitions. Second operand has 19 states, 17 states have (on average 6.294117647058823) internal successors, (107), 18 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:43:46,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:43:46,130 INFO L93 Difference]: Finished difference Result 5773 states and 10430 transitions. [2024-11-27 23:43:46,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 23:43:46,131 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 6.294117647058823) internal successors, (107), 18 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2024-11-27 23:43:46,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:43:46,143 INFO L225 Difference]: With dead ends: 5773 [2024-11-27 23:43:46,143 INFO L226 Difference]: Without dead ends: 5773 [2024-11-27 23:43:46,144 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=149, Invalid=721, Unknown=0, NotChecked=0, Total=870 [2024-11-27 23:43:46,144 INFO L435 NwaCegarLoop]: 2616 mSDtfsCounter, 1907 mSDsluCounter, 11639 mSDsCounter, 0 mSdLazyCounter, 7137 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2411 SdHoareTripleChecker+Valid, 14255 SdHoareTripleChecker+Invalid, 7653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 7137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:43:46,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2411 Valid, 14255 Invalid, 7653 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [516 Valid, 7137 Invalid, 0 Unknown, 0 Unchecked, 30.7s Time] [2024-11-27 23:43:46,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5773 states. [2024-11-27 23:43:46,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5773 to 5770. [2024-11-27 23:43:46,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5770 states, 3485 states have (on average 1.8393113342898135) internal successors, (6410), 5758 states have internal predecessors, (6410), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:43:46,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5770 states to 5770 states and 10424 transitions. [2024-11-27 23:43:46,695 INFO L78 Accepts]: Start accepts. Automaton has 5770 states and 10424 transitions. Word has length 109 [2024-11-27 23:43:46,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:43:46,695 INFO L471 AbstractCegarLoop]: Abstraction has 5770 states and 10424 transitions. [2024-11-27 23:43:46,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 6.294117647058823) internal successors, (107), 18 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:43:46,696 INFO L276 IsEmpty]: Start isEmpty. Operand 5770 states and 10424 transitions. [2024-11-27 23:43:46,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-27 23:43:46,696 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:43:46,696 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:43:46,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-27 23:43:46,696 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr100REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:43:46,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:43:46,701 INFO L85 PathProgramCache]: Analyzing trace with hash -507136129, now seen corresponding path program 1 times [2024-11-27 23:43:46,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:43:46,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791634035] [2024-11-27 23:43:46,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:43:46,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:43:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:43:47,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:43:47,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:43:47,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791634035] [2024-11-27 23:43:47,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791634035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:43:47,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:43:47,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:43:47,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374491221] [2024-11-27 23:43:47,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:43:47,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:43:47,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:43:47,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:43:47,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:43:47,411 INFO L87 Difference]: Start difference. First operand 5770 states and 10424 transitions. Second operand has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:43:52,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:43:52,261 INFO L93 Difference]: Finished difference Result 5769 states and 10422 transitions. [2024-11-27 23:43:52,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:43:52,262 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2024-11-27 23:43:52,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:43:52,273 INFO L225 Difference]: With dead ends: 5769 [2024-11-27 23:43:52,273 INFO L226 Difference]: Without dead ends: 5769 [2024-11-27 23:43:52,273 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:43:52,274 INFO L435 NwaCegarLoop]: 2954 mSDtfsCounter, 2 mSDsluCounter, 10685 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13639 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:43:52,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 13639 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-27 23:43:52,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5769 states. [2024-11-27 23:43:52,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5769 to 5769. [2024-11-27 23:43:52,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5769 states, 3485 states have (on average 1.8387374461979913) internal successors, (6408), 5757 states have internal predecessors, (6408), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:43:52,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5769 states to 5769 states and 10422 transitions. [2024-11-27 23:43:52,892 INFO L78 Accepts]: Start accepts. Automaton has 5769 states and 10422 transitions. Word has length 110 [2024-11-27 23:43:52,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:43:52,892 INFO L471 AbstractCegarLoop]: Abstraction has 5769 states and 10422 transitions. [2024-11-27 23:43:52,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:43:52,893 INFO L276 IsEmpty]: Start isEmpty. Operand 5769 states and 10422 transitions. [2024-11-27 23:43:52,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-27 23:43:52,893 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:43:52,893 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:43:52,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-27 23:43:52,894 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr101REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:43:52,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:43:52,894 INFO L85 PathProgramCache]: Analyzing trace with hash -507136128, now seen corresponding path program 1 times [2024-11-27 23:43:52,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:43:52,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292779904] [2024-11-27 23:43:52,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:43:52,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:43:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:43:56,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:43:56,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:43:56,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292779904] [2024-11-27 23:43:56,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292779904] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:43:56,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463405875] [2024-11-27 23:43:56,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:43:56,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:43:56,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:43:56,488 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:43:56,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 23:43:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:43:56,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-27 23:43:56,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:43:56,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 23:43:57,678 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-27 23:43:57,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-27 23:43:57,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 23:43:57,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-27 23:43:57,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:43:58,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-27 23:43:58,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:43:59,290 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:43:59,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-27 23:43:59,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:43:59,879 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:43:59,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-27 23:43:59,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:44:00,353 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:44:00,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-27 23:44:00,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:44:00,765 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:44:00,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-27 23:44:00,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:44:01,184 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:44:01,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-27 23:44:01,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:44:01,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:44:01,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-27 23:44:01,635 INFO L349 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2024-11-27 23:44:01,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 24 [2024-11-27 23:44:01,824 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:44:01,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-27 23:44:01,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:44:01,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-27 23:44:01,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:44:01,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:44:01,936 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:44:02,264 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_3249 (Array Int Int))) (<= 0 (+ 40 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem60#1.base| v_ArrVal_3249) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_3250 (Array Int Int)) (v_ArrVal_3249 (Array Int Int))) (<= (+ 44 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem60#1.base| v_ArrVal_3249) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem60#1.base| v_ArrVal_3250) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-27 23:44:02,986 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (or (forall ((v_ArrVal_3246 (Array Int Int)) (v_ArrVal_3247 (Array Int Int)) (v_ArrVal_3249 (Array Int Int))) (<= 0 (+ 40 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem59#1.base| v_ArrVal_3247) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem59#1.base| v_ArrVal_3246) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_3249) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((|v_ULTIMATE.start_main_#t~malloc61#1.base_9| Int)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_9|) 0)))) (forall ((|v_ULTIMATE.start_main_#t~malloc61#1.base_9| Int) (v_ArrVal_3246 (Array Int Int)) (v_ArrVal_3247 (Array Int Int))) (or (forall ((v_ArrVal_3250 (Array Int Int)) (v_ArrVal_3248 Int) (v_ArrVal_3249 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem59#1.base| v_ArrVal_3246))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (<= (+ 44 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem59#1.base| v_ArrVal_3247) .cse1 v_ArrVal_3249) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc61#1.base_9| v_ArrVal_3248) (select (select (store .cse2 .cse1 v_ArrVal_3250) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_9|) 0)))))) is different from false [2024-11-27 23:44:03,482 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((|v_ULTIMATE.start_main_#t~malloc61#1.base_9| Int) (v_ArrVal_3244 (Array Int Int)) (v_ArrVal_3245 (Array Int Int)) (v_ArrVal_3246 (Array Int Int)) (v_ArrVal_3247 (Array Int Int))) (or (forall ((v_ArrVal_3250 (Array Int Int)) (v_ArrVal_3248 Int) (v_ArrVal_3249 (Array Int Int))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_3245))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_3246))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (<= (+ (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_3244) .cse0 v_ArrVal_3247) .cse1 v_ArrVal_3249) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 44) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc61#1.base_9| v_ArrVal_3248) (select (select (store .cse3 .cse1 v_ArrVal_3250) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_9|) 0)))) (or (forall ((v_ArrVal_3244 (Array Int Int)) (v_ArrVal_3245 (Array Int Int)) (v_ArrVal_3246 (Array Int Int)) (v_ArrVal_3247 (Array Int Int)) (v_ArrVal_3249 (Array Int Int))) (<= 0 (+ (select (select (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_3245))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_3244) .cse5 v_ArrVal_3247) (select (select (store .cse6 .cse5 v_ArrVal_3246) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_3249))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 40))) (forall ((|v_ULTIMATE.start_main_#t~malloc61#1.base_9| Int)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_9|) 0)))))) is different from false [2024-11-27 23:44:03,572 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (and (forall ((|v_ULTIMATE.start_main_#t~malloc61#1.base_9| Int) (v_ArrVal_3244 (Array Int Int)) (v_ArrVal_3245 (Array Int Int)) (v_ArrVal_3246 (Array Int Int)) (v_ArrVal_3247 (Array Int Int))) (or (forall ((v_ArrVal_3250 (Array Int Int)) (v_ArrVal_3248 Int) (v_ArrVal_3249 (Array Int Int))) (let ((.cse5 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_3245))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_3246))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (<= (+ 44 (select (select (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_3244) .cse1 v_ArrVal_3247) .cse2 v_ArrVal_3249) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc61#1.base_9| v_ArrVal_3248) (select (select (store .cse4 .cse2 v_ArrVal_3250) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_9|) 0)))) (or (forall ((v_ArrVal_3244 (Array Int Int)) (v_ArrVal_3245 (Array Int Int)) (v_ArrVal_3246 (Array Int Int)) (v_ArrVal_3247 (Array Int Int)) (v_ArrVal_3249 (Array Int Int))) (<= 0 (+ 40 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_3245))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_3244) .cse6 v_ArrVal_3247) (select (select (store .cse7 .cse6 v_ArrVal_3246) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_3249))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))) (forall ((|v_ULTIMATE.start_main_#t~malloc61#1.base_9| Int)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_9|) 0))))))) is different from false [2024-11-27 23:44:15,540 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (or (forall ((|v_ULTIMATE.start_main_#t~malloc61#1.base_9| Int)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_9|) 0))) (forall ((v_ArrVal_3240 (Array Int Int)) (v_ArrVal_3241 (Array Int Int)) (v_ArrVal_3242 (Array Int Int)) (v_ArrVal_3243 (Array Int Int)) (v_ArrVal_3244 (Array Int Int)) (v_ArrVal_3245 (Array Int Int)) (v_ArrVal_3246 (Array Int Int)) (v_ArrVal_3247 (Array Int Int)) (v_ArrVal_3249 (Array Int Int))) (<= 0 (+ (select (select (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_3241))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_3243))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse3 (store .cse5 .cse1 v_ArrVal_3245))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_3240) .cse0 v_ArrVal_3242) .cse1 v_ArrVal_3244) .cse2 v_ArrVal_3247) (select (select (store .cse3 .cse2 v_ArrVal_3246) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_3249))))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 40)))) (forall ((v_ArrVal_3240 (Array Int Int)) (v_ArrVal_3241 (Array Int Int)) (v_ArrVal_3242 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc61#1.base_9| Int) (v_ArrVal_3243 (Array Int Int)) (v_ArrVal_3244 (Array Int Int)) (v_ArrVal_3245 (Array Int Int)) (v_ArrVal_3246 (Array Int Int)) (v_ArrVal_3247 (Array Int Int))) (or (forall ((v_ArrVal_3250 (Array Int Int)) (v_ArrVal_3248 Int) (v_ArrVal_3249 (Array Int Int))) (let ((.cse14 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_3241))) (let ((.cse7 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse13 (store .cse14 .cse7 v_ArrVal_3243))) (let ((.cse8 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse12 (store .cse13 .cse8 v_ArrVal_3245))) (let ((.cse9 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse11 (store .cse12 .cse9 v_ArrVal_3246))) (let ((.cse10 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (<= (+ (select (select (store (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_3240) .cse7 v_ArrVal_3242) .cse8 v_ArrVal_3244) .cse9 v_ArrVal_3247) .cse10 v_ArrVal_3249) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 44) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc61#1.base_9| v_ArrVal_3248) (select (select (store .cse11 .cse10 v_ArrVal_3250) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))))))))))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_9|) 0)))))) is different from false [2024-11-27 23:44:44,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463405875] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:44:44,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:44:44,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15] total 29 [2024-11-27 23:44:44,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818833828] [2024-11-27 23:44:44,523 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:44:44,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-27 23:44:44,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:44:44,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-27 23:44:44,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=1234, Unknown=36, NotChecked=390, Total=1892 [2024-11-27 23:44:44,525 INFO L87 Difference]: Start difference. First operand 5769 states and 10422 transitions. Second operand has 30 states, 27 states have (on average 6.62962962962963) internal successors, (179), 29 states have internal predecessors, (179), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:48:39,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:48:39,024 INFO L93 Difference]: Finished difference Result 5771 states and 10426 transitions. [2024-11-27 23:48:39,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 23:48:39,025 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 27 states have (on average 6.62962962962963) internal successors, (179), 29 states have internal predecessors, (179), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 110 [2024-11-27 23:48:39,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:48:39,034 INFO L225 Difference]: With dead ends: 5771 [2024-11-27 23:48:39,034 INFO L226 Difference]: Without dead ends: 5771 [2024-11-27 23:48:39,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 108 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 46.2s TimeCoverageRelationStatistics Valid=258, Invalid=1447, Unknown=37, NotChecked=420, Total=2162 [2024-11-27 23:48:39,035 INFO L435 NwaCegarLoop]: 2614 mSDtfsCounter, 1844 mSDsluCounter, 31562 mSDsCounter, 0 mSdLazyCounter, 23332 mSolverCounterSat, 515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 228.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2348 SdHoareTripleChecker+Valid, 34176 SdHoareTripleChecker+Invalid, 23847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 23332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 232.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:48:39,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2348 Valid, 34176 Invalid, 23847 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [515 Valid, 23332 Invalid, 0 Unknown, 0 Unchecked, 232.4s Time] [2024-11-27 23:48:39,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5771 states. [2024-11-27 23:48:39,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5771 to 5727. [2024-11-27 23:48:39,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5727 states, 3445 states have (on average 1.8476052249637156) internal successors, (6365), 5717 states have internal predecessors, (6365), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 3 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-27 23:48:39,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5727 states to 5727 states and 10377 transitions. [2024-11-27 23:48:39,719 INFO L78 Accepts]: Start accepts. Automaton has 5727 states and 10377 transitions. Word has length 110 [2024-11-27 23:48:39,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:48:39,719 INFO L471 AbstractCegarLoop]: Abstraction has 5727 states and 10377 transitions. [2024-11-27 23:48:39,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 27 states have (on average 6.62962962962963) internal successors, (179), 29 states have internal predecessors, (179), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:48:39,719 INFO L276 IsEmpty]: Start isEmpty. Operand 5727 states and 10377 transitions. [2024-11-27 23:48:39,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-27 23:48:39,720 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:48:39,720 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:48:39,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-27 23:48:39,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b3c3a3-b4e4-4d90-8005-9db4bf076ad3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-27 23:48:39,921 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr104REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:48:39,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:48:39,929 INFO L85 PathProgramCache]: Analyzing trace with hash 75833273, now seen corresponding path program 1 times [2024-11-27 23:48:39,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:48:39,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482258410] [2024-11-27 23:48:39,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:48:39,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:48:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat