./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --preprocessor.use.memory.slicer false --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fba957c5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 271771768c3380f5979c29c79a53c5e282857dcb6c4c2b744d0fa4e6e2c0dd66 --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-dev-fba957c-m [2023-11-23 10:22:12,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 10:22:12,293 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 10:22:12,300 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 10:22:12,301 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 10:22:12,329 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 10:22:12,331 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 10:22:12,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 10:22:12,346 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 10:22:12,349 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 10:22:12,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 10:22:12,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 10:22:12,351 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 10:22:12,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 10:22:12,352 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 10:22:12,352 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 10:22:12,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 10:22:12,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 10:22:12,353 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 10:22:12,353 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 10:22:12,353 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 10:22:12,354 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 10:22:12,354 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 10:22:12,354 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 10:22:12,355 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 10:22:12,355 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 10:22:12,355 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 10:22:12,356 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 10:22:12,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 10:22:12,357 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 10:22:12,358 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 10:22:12,358 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 10:22:12,358 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 10:22:12,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 10:22:12,359 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 10:22:12,359 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 10:22:12,359 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 10:22:12,359 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 10:22:12,359 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 10:22:12,360 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 271771768c3380f5979c29c79a53c5e282857dcb6c4c2b744d0fa4e6e2c0dd66 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-23 10:22:12,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 10:22:12,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 10:22:12,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 10:22:12,623 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 10:22:12,624 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 10:22:12,625 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i [2023-11-23 10:22:13,806 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 10:22:14,208 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 10:22:14,209 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i [2023-11-23 10:22:14,239 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec9248c9/44dfe195b08b4c41b21d8fee815d8d17/FLAG242cdf591 [2023-11-23 10:22:14,252 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec9248c9/44dfe195b08b4c41b21d8fee815d8d17 [2023-11-23 10:22:14,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 10:22:14,255 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 10:22:14,257 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 10:22:14,258 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 10:22:14,263 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 10:22:14,263 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:22:14" (1/1) ... [2023-11-23 10:22:14,264 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ee7d52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:14, skipping insertion in model container [2023-11-23 10:22:14,264 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:22:14" (1/1) ... [2023-11-23 10:22:14,343 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 10:22:15,545 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i[185985,185998] [2023-11-23 10:22:15,610 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 10:22:15,655 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 10:22:15,829 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i[185985,185998] [2023-11-23 10:22:15,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 10:22:15,894 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 10:22:15,899 INFO L206 MainTranslator]: Completed translation [2023-11-23 10:22:15,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:15 WrapperNode [2023-11-23 10:22:15,900 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 10:22:15,901 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 10:22:15,901 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 10:22:15,901 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 10:22:15,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:15" (1/1) ... [2023-11-23 10:22:15,976 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:15" (1/1) ... [2023-11-23 10:22:16,074 INFO L138 Inliner]: procedures = 159, calls = 1260, calls flagged for inlining = 71, calls inlined = 71, statements flattened = 3369 [2023-11-23 10:22:16,074 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 10:22:16,075 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 10:22:16,075 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 10:22:16,075 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 10:22:16,082 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:15" (1/1) ... [2023-11-23 10:22:16,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:15" (1/1) ... [2023-11-23 10:22:16,111 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:15" (1/1) ... [2023-11-23 10:22:16,112 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:15" (1/1) ... [2023-11-23 10:22:16,163 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:15" (1/1) ... [2023-11-23 10:22:16,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:15" (1/1) ... [2023-11-23 10:22:16,250 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:15" (1/1) ... [2023-11-23 10:22:16,261 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:15" (1/1) ... [2023-11-23 10:22:16,307 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 10:22:16,322 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 10:22:16,322 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 10:22:16,322 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 10:22:16,323 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:15" (1/1) ... [2023-11-23 10:22:16,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 10:22:16,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:22:16,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 10:22:16,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 10:22:16,517 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_radio_text [2023-11-23 10:22:16,517 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_radio_text [2023-11-23 10:22:16,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 10:22:16,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 10:22:16,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 10:22:16,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 10:22:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 10:22:16,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 10:22:16,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 10:22:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 10:22:16,518 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_is_valid [2023-11-23 10:22:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_is_valid [2023-11-23 10:22:16,519 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_wait_stc [2023-11-23 10:22:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_wait_stc [2023-11-23 10:22:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_usecs [2023-11-23 10:22:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_usecs [2023-11-23 10:22:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_mute [2023-11-23 10:22:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_mute [2023-11-23 10:22:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 10:22:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 10:22:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2023-11-23 10:22:16,521 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2023-11-23 10:22:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 10:22:16,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 10:22:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_power_state [2023-11-23 10:22:16,521 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_power_state [2023-11-23 10:22:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_choose_econtrol_action [2023-11-23 10:22:16,570 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_choose_econtrol_action [2023-11-23 10:22:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_len [2023-11-23 10:22:16,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_len [2023-11-23 10:22:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 10:22:16,571 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 10:22:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 10:22:16,571 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 10:22:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_tune [2023-11-23 10:22:16,571 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_tune [2023-11-23 10:22:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 10:22:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 10:22:16,571 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 10:22:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-23 10:22:16,571 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-23 10:22:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-11-23 10:22:16,571 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-11-23 10:22:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 10:22:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 10:22:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_strlen [2023-11-23 10:22:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_strlen [2023-11-23 10:22:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2023-11-23 10:22:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2023-11-23 10:22:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 10:22:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 10:22:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_rds_buff [2023-11-23 10:22:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_rds_buff [2023-11-23 10:22:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 10:22:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 10:22:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 10:22:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 10:22:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 10:22:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_query_fill [2023-11-23 10:22:16,573 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_query_fill [2023-11-23 10:22:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure validate_range [2023-11-23 10:22:16,573 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_range [2023-11-23 10:22:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_free [2023-11-23 10:22:16,573 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_free [2023-11-23 10:22:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_integers [2023-11-23 10:22:16,573 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_integers [2023-11-23 10:22:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 10:22:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 10:22:16,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 10:22:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 10:22:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_disable [2023-11-23 10:22:16,574 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_disable [2023-11-23 10:22:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 10:22:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_free [2023-11-23 10:22:16,574 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_free [2023-11-23 10:22:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-23 10:22:16,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-23 10:22:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_send_command [2023-11-23 10:22:16,574 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_send_command [2023-11-23 10:22:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_get_subdevdata [2023-11-23 10:22:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_get_subdevdata [2023-11-23 10:22:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure usecs_to_jiffies [2023-11-23 10:22:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure usecs_to_jiffies [2023-11-23 10:22:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_property [2023-11-23 10:22:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_property [2023-11-23 10:22:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 10:22:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 10:22:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 10:22:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 10:22:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 10:22:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_read_property [2023-11-23 10:22:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_read_property [2023-11-23 10:22:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-23 10:22:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-23 10:22:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_frequency [2023-11-23 10:22:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_frequency [2023-11-23 10:22:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 10:22:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 10:22:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_copy_from_user_7 [2023-11-23 10:22:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_copy_from_user_7 [2023-11-23 10:22:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 10:22:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 10:22:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 10:22:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 10:22:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 10:22:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 10:22:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 10:22:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_tune_status [2023-11-23 10:22:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_tune_status [2023-11-23 10:22:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_ret_val [2023-11-23 10:22:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_ret_val [2023-11-23 10:22:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_update_tune_status [2023-11-23 10:22:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_update_tune_status [2023-11-23 10:22:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_ps_name [2023-11-23 10:22:16,578 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_ps_name [2023-11-23 10:22:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_queryctrl [2023-11-23 10:22:16,578 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_queryctrl [2023-11-23 10:22:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_modulator [2023-11-23 10:22:16,578 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_modulator [2023-11-23 10:22:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 10:22:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-23 10:22:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 10:22:16,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 10:22:17,031 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 10:22:17,035 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 10:22:17,292 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 10:22:19,315 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 10:22:19,402 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 10:22:19,402 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 10:22:19,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:22:19 BoogieIcfgContainer [2023-11-23 10:22:19,403 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 10:22:19,404 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 10:22:19,404 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 10:22:19,407 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 10:22:19,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:22:14" (1/3) ... [2023-11-23 10:22:19,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0b672e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:22:19, skipping insertion in model container [2023-11-23 10:22:19,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:15" (2/3) ... [2023-11-23 10:22:19,408 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0b672e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:22:19, skipping insertion in model container [2023-11-23 10:22:19,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:22:19" (3/3) ... [2023-11-23 10:22:19,409 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i [2023-11-23 10:22:19,421 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 10:22:19,421 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 10:22:19,462 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 10:22:19,466 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@5506ab97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 10:22:19,466 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 10:22:19,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 1128 states, 825 states have (on average 1.4824242424242424) internal successors, (1223), 841 states have internal predecessors, (1223), 249 states have call successors, (249), 53 states have call predecessors, (249), 52 states have return successors, (241), 241 states have call predecessors, (241), 241 states have call successors, (241) [2023-11-23 10:22:19,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-23 10:22:19,488 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:22:19,489 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:22:19,489 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:22:19,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:22:19,493 INFO L85 PathProgramCache]: Analyzing trace with hash -974574699, now seen corresponding path program 1 times [2023-11-23 10:22:19,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:22:19,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747929110] [2023-11-23 10:22:19,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:22:19,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:22:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:19,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:19,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:19,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:19,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:19,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:22:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:19,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:20,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:20,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:22:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:20,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:20,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:20,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:22:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:20,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 10:22:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:20,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:22:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:20,110 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-23 10:22:20,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:22:20,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747929110] [2023-11-23 10:22:20,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747929110] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:22:20,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:22:20,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 10:22:20,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508772841] [2023-11-23 10:22:20,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:22:20,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 10:22:20,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:22:20,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 10:22:20,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 10:22:20,149 INFO L87 Difference]: Start difference. First operand has 1128 states, 825 states have (on average 1.4824242424242424) internal successors, (1223), 841 states have internal predecessors, (1223), 249 states have call successors, (249), 53 states have call predecessors, (249), 52 states have return successors, (241), 241 states have call predecessors, (241), 241 states have call successors, (241) Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 10:22:25,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:22:25,115 INFO L93 Difference]: Finished difference Result 2330 states and 3582 transitions. [2023-11-23 10:22:25,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 10:22:25,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 81 [2023-11-23 10:22:25,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:22:25,133 INFO L225 Difference]: With dead ends: 2330 [2023-11-23 10:22:25,133 INFO L226 Difference]: Without dead ends: 1193 [2023-11-23 10:22:25,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-23 10:22:25,147 INFO L413 NwaCegarLoop]: 1327 mSDtfsCounter, 501 mSDsluCounter, 2262 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 611 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 3589 SdHoareTripleChecker+Invalid, 2342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 611 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-23 10:22:25,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 3589 Invalid, 2342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [611 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-23 10:22:25,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2023-11-23 10:22:25,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1117. [2023-11-23 10:22:25,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 823 states have (on average 1.4641555285540704) internal successors, (1205), 830 states have internal predecessors, (1205), 241 states have call successors, (241), 52 states have call predecessors, (241), 52 states have return successors, (241), 241 states have call predecessors, (241), 241 states have call successors, (241) [2023-11-23 10:22:25,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1687 transitions. [2023-11-23 10:22:25,243 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1687 transitions. Word has length 81 [2023-11-23 10:22:25,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:22:25,243 INFO L495 AbstractCegarLoop]: Abstraction has 1117 states and 1687 transitions. [2023-11-23 10:22:25,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 10:22:25,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1687 transitions. [2023-11-23 10:22:25,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-23 10:22:25,248 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:22:25,249 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:22:25,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 10:22:25,249 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:22:25,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:22:25,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1781634639, now seen corresponding path program 1 times [2023-11-23 10:22:25,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:22:25,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502539237] [2023-11-23 10:22:25,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:22:25,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:22:25,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:25,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:25,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:25,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:25,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:22:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:25,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:25,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:25,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:22:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:25,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:25,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:25,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:22:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:25,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 10:22:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:25,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:22:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:25,585 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-23 10:22:25,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:22:25,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502539237] [2023-11-23 10:22:25,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502539237] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:22:25,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:22:25,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 10:22:25,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081713371] [2023-11-23 10:22:25,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:22:25,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 10:22:25,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:22:25,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 10:22:25,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 10:22:25,589 INFO L87 Difference]: Start difference. First operand 1117 states and 1687 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 10:22:28,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:22:30,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:22:30,269 INFO L93 Difference]: Finished difference Result 2840 states and 4284 transitions. [2023-11-23 10:22:30,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 10:22:30,270 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 81 [2023-11-23 10:22:30,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:22:30,283 INFO L225 Difference]: With dead ends: 2840 [2023-11-23 10:22:30,283 INFO L226 Difference]: Without dead ends: 1732 [2023-11-23 10:22:30,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-23 10:22:30,288 INFO L413 NwaCegarLoop]: 1324 mSDtfsCounter, 1511 mSDsluCounter, 2689 mSDsCounter, 0 mSdLazyCounter, 1801 mSolverCounterSat, 917 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1611 SdHoareTripleChecker+Valid, 4013 SdHoareTripleChecker+Invalid, 2718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 917 IncrementalHoareTripleChecker+Valid, 1801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-23 10:22:30,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1611 Valid, 4013 Invalid, 2718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [917 Valid, 1801 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-23 10:22:30,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2023-11-23 10:22:30,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1604. [2023-11-23 10:22:30,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1604 states, 1174 states have (on average 1.4522998296422487) internal successors, (1705), 1186 states have internal predecessors, (1705), 345 states have call successors, (345), 84 states have call predecessors, (345), 84 states have return successors, (345), 344 states have call predecessors, (345), 345 states have call successors, (345) [2023-11-23 10:22:30,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2395 transitions. [2023-11-23 10:22:30,375 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2395 transitions. Word has length 81 [2023-11-23 10:22:30,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:22:30,378 INFO L495 AbstractCegarLoop]: Abstraction has 1604 states and 2395 transitions. [2023-11-23 10:22:30,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 10:22:30,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2395 transitions. [2023-11-23 10:22:30,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-11-23 10:22:30,388 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:22:30,388 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:22:30,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 10:22:30,388 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:22:30,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:22:30,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1560475453, now seen corresponding path program 1 times [2023-11-23 10:22:30,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:22:30,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814597088] [2023-11-23 10:22:30,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:22:30,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:22:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:22:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:22:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:31,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:22:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:22:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 10:22:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:22:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 10:22:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 10:22:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:22:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-23 10:22:31,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:31,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-23 10:22:31,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:22:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:31,574 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2023-11-23 10:22:31,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:22:31,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814597088] [2023-11-23 10:22:31,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814597088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:22:31,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:22:31,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 10:22:31,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459558270] [2023-11-23 10:22:31,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:22:31,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 10:22:31,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:22:31,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 10:22:31,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-23 10:22:31,580 INFO L87 Difference]: Start difference. First operand 1604 states and 2395 transitions. Second operand has 12 states, 10 states have (on average 6.1) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 10:22:44,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:22:44,449 INFO L93 Difference]: Finished difference Result 4022 states and 5987 transitions. [2023-11-23 10:22:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-23 10:22:44,449 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.1) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) Word has length 189 [2023-11-23 10:22:44,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:22:44,459 INFO L225 Difference]: With dead ends: 4022 [2023-11-23 10:22:44,460 INFO L226 Difference]: Without dead ends: 2430 [2023-11-23 10:22:44,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2023-11-23 10:22:44,465 INFO L413 NwaCegarLoop]: 1488 mSDtfsCounter, 1170 mSDsluCounter, 9732 mSDsCounter, 0 mSdLazyCounter, 7812 mSolverCounterSat, 830 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 11220 SdHoareTripleChecker+Invalid, 8642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 830 IncrementalHoareTripleChecker+Valid, 7812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2023-11-23 10:22:44,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 11220 Invalid, 8642 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [830 Valid, 7812 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2023-11-23 10:22:44,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states. [2023-11-23 10:22:44,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 2289. [2023-11-23 10:22:44,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2289 states, 1665 states have (on average 1.4420420420420421) internal successors, (2401), 1692 states have internal predecessors, (2401), 473 states have call successors, (473), 140 states have call predecessors, (473), 150 states have return successors, (526), 467 states have call predecessors, (526), 473 states have call successors, (526) [2023-11-23 10:22:44,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2289 states to 2289 states and 3400 transitions. [2023-11-23 10:22:44,528 INFO L78 Accepts]: Start accepts. Automaton has 2289 states and 3400 transitions. Word has length 189 [2023-11-23 10:22:44,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:22:44,529 INFO L495 AbstractCegarLoop]: Abstraction has 2289 states and 3400 transitions. [2023-11-23 10:22:44,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.1) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 10:22:44,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states and 3400 transitions. [2023-11-23 10:22:44,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-23 10:22:44,535 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:22:44,536 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:22:44,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 10:22:44,536 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:22:44,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:22:44,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1330710477, now seen corresponding path program 1 times [2023-11-23 10:22:44,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:22:44,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934890949] [2023-11-23 10:22:44,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:22:44,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:22:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:44,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:44,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:44,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:44,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:22:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:44,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:44,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:44,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:22:44,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:44,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:44,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:44,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:22:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:44,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:22:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 10:22:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:45,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:22:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 10:22:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:45,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 10:22:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:22:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-23 10:22:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-23 10:22:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-23 10:22:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-11-23 10:22:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:45,129 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2023-11-23 10:22:45,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:22:45,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934890949] [2023-11-23 10:22:45,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934890949] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:22:45,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:22:45,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 10:22:45,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083997060] [2023-11-23 10:22:45,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:22:45,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 10:22:45,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:22:45,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 10:22:45,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 10:22:45,132 INFO L87 Difference]: Start difference. First operand 2289 states and 3400 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-23 10:22:49,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:22:49,697 INFO L93 Difference]: Finished difference Result 2407 states and 3573 transitions. [2023-11-23 10:22:49,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 10:22:49,698 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 208 [2023-11-23 10:22:49,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:22:49,714 INFO L225 Difference]: With dead ends: 2407 [2023-11-23 10:22:49,714 INFO L226 Difference]: Without dead ends: 2405 [2023-11-23 10:22:49,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-11-23 10:22:49,717 INFO L413 NwaCegarLoop]: 1326 mSDtfsCounter, 591 mSDsluCounter, 3937 mSDsCounter, 0 mSdLazyCounter, 2273 mSolverCounterSat, 602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 5263 SdHoareTripleChecker+Invalid, 2875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 602 IncrementalHoareTripleChecker+Valid, 2273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-23 10:22:49,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 5263 Invalid, 2875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [602 Valid, 2273 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-23 10:22:49,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2023-11-23 10:22:49,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 2293. [2023-11-23 10:22:49,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2293 states, 1668 states have (on average 1.4406474820143884) internal successors, (2403), 1695 states have internal predecessors, (2403), 473 states have call successors, (473), 141 states have call predecessors, (473), 151 states have return successors, (526), 467 states have call predecessors, (526), 473 states have call successors, (526) [2023-11-23 10:22:49,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2293 states to 2293 states and 3402 transitions. [2023-11-23 10:22:49,788 INFO L78 Accepts]: Start accepts. Automaton has 2293 states and 3402 transitions. Word has length 208 [2023-11-23 10:22:49,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:22:49,789 INFO L495 AbstractCegarLoop]: Abstraction has 2293 states and 3402 transitions. [2023-11-23 10:22:49,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-23 10:22:49,790 INFO L276 IsEmpty]: Start isEmpty. Operand 2293 states and 3402 transitions. [2023-11-23 10:22:49,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-23 10:22:49,798 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:22:49,798 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:22:49,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 10:22:49,798 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:22:49,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:22:49,799 INFO L85 PathProgramCache]: Analyzing trace with hash -419741630, now seen corresponding path program 1 times [2023-11-23 10:22:49,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:22:49,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510168755] [2023-11-23 10:22:49,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:22:49,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:22:49,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:22:50,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:22:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:50,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:22:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:22:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 10:22:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:22:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 10:22:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 10:22:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:50,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:51,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:51,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:22:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:51,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:51,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:51,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:51,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-23 10:22:51,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:51,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:51,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:51,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-23 10:22:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:51,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-23 10:22:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:51,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-11-23 10:22:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:51,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:22:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:51,161 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2023-11-23 10:22:51,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:22:51,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510168755] [2023-11-23 10:22:51,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510168755] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:22:51,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:22:51,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-23 10:22:51,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293901958] [2023-11-23 10:22:51,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:22:51,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 10:22:51,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:22:51,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 10:22:51,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-23 10:22:51,163 INFO L87 Difference]: Start difference. First operand 2293 states and 3402 transitions. Second operand has 11 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 4 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 10:22:57,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:01,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:23:01,287 INFO L93 Difference]: Finished difference Result 4707 states and 6990 transitions. [2023-11-23 10:23:01,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 10:23:01,287 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 4 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 207 [2023-11-23 10:23:01,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:23:01,300 INFO L225 Difference]: With dead ends: 4707 [2023-11-23 10:23:01,300 INFO L226 Difference]: Without dead ends: 2426 [2023-11-23 10:23:01,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-11-23 10:23:01,311 INFO L413 NwaCegarLoop]: 1305 mSDtfsCounter, 835 mSDsluCounter, 5894 mSDsCounter, 0 mSdLazyCounter, 4272 mSolverCounterSat, 904 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 7199 SdHoareTripleChecker+Invalid, 5176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 904 IncrementalHoareTripleChecker+Valid, 4272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-11-23 10:23:01,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 7199 Invalid, 5176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [904 Valid, 4272 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2023-11-23 10:23:01,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states. [2023-11-23 10:23:01,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 2298. [2023-11-23 10:23:01,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2298 states, 1672 states have (on average 1.4401913875598087) internal successors, (2408), 1699 states have internal predecessors, (2408), 473 states have call successors, (473), 141 states have call predecessors, (473), 152 states have return successors, (529), 468 states have call predecessors, (529), 473 states have call successors, (529) [2023-11-23 10:23:01,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2298 states to 2298 states and 3410 transitions. [2023-11-23 10:23:01,387 INFO L78 Accepts]: Start accepts. Automaton has 2298 states and 3410 transitions. Word has length 207 [2023-11-23 10:23:01,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:23:01,389 INFO L495 AbstractCegarLoop]: Abstraction has 2298 states and 3410 transitions. [2023-11-23 10:23:01,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 4 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 10:23:01,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2298 states and 3410 transitions. [2023-11-23 10:23:01,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-23 10:23:01,397 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:23:01,397 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:23:01,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 10:23:01,399 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:23:01,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:23:01,399 INFO L85 PathProgramCache]: Analyzing trace with hash -158432288, now seen corresponding path program 1 times [2023-11-23 10:23:01,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:23:01,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921867695] [2023-11-23 10:23:01,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:23:01,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:23:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:23:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:23:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:23:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:23:02,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 10:23:02,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:23:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 10:23:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:02,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 10:23:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:23:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-23 10:23:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-23 10:23:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-23 10:23:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-11-23 10:23:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:23:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,865 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2023-11-23 10:23:02,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:23:02,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921867695] [2023-11-23 10:23:02,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921867695] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:23:02,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:23:02,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 10:23:02,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304827498] [2023-11-23 10:23:02,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:23:02,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 10:23:02,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:23:02,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 10:23:02,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-23 10:23:02,868 INFO L87 Difference]: Start difference. First operand 2298 states and 3410 transitions. Second operand has 12 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 4 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 10:23:09,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:13,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:23:13,989 INFO L93 Difference]: Finished difference Result 4703 states and 6981 transitions. [2023-11-23 10:23:13,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 10:23:13,990 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 4 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 208 [2023-11-23 10:23:13,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:23:14,001 INFO L225 Difference]: With dead ends: 4703 [2023-11-23 10:23:14,002 INFO L226 Difference]: Without dead ends: 2417 [2023-11-23 10:23:14,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2023-11-23 10:23:14,010 INFO L413 NwaCegarLoop]: 1308 mSDtfsCounter, 824 mSDsluCounter, 7111 mSDsCounter, 0 mSdLazyCounter, 4769 mSolverCounterSat, 891 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 8419 SdHoareTripleChecker+Invalid, 5661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 891 IncrementalHoareTripleChecker+Valid, 4769 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2023-11-23 10:23:14,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 8419 Invalid, 5661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [891 Valid, 4769 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2023-11-23 10:23:14,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2417 states. [2023-11-23 10:23:14,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2417 to 2299. [2023-11-23 10:23:14,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2299 states, 1673 states have (on average 1.439928272564256) internal successors, (2409), 1700 states have internal predecessors, (2409), 473 states have call successors, (473), 141 states have call predecessors, (473), 152 states have return successors, (529), 468 states have call predecessors, (529), 473 states have call successors, (529) [2023-11-23 10:23:14,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 3411 transitions. [2023-11-23 10:23:14,085 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 3411 transitions. Word has length 208 [2023-11-23 10:23:14,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:23:14,085 INFO L495 AbstractCegarLoop]: Abstraction has 2299 states and 3411 transitions. [2023-11-23 10:23:14,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 4 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 10:23:14,086 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 3411 transitions. [2023-11-23 10:23:14,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-23 10:23:14,095 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:23:14,095 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:23:14,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 10:23:14,095 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:23:14,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:23:14,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1643374416, now seen corresponding path program 1 times [2023-11-23 10:23:14,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:23:14,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957453217] [2023-11-23 10:23:14,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:23:14,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:23:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:23:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:23:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:23:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:23:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:15,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 10:23:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:23:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 10:23:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 10:23:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:23:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:15,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-23 10:23:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:16,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:16,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:16,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-23 10:23:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:16,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-23 10:23:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:16,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-11-23 10:23:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:16,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 10:23:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:16,105 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 84 proven. 17 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2023-11-23 10:23:16,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:23:16,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957453217] [2023-11-23 10:23:16,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957453217] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:23:16,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945205816] [2023-11-23 10:23:16,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:23:16,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:23:16,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:23:16,121 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 10:23:16,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 10:23:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:16,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 2092 conjuncts, 63 conjunts are in the unsatisfiable core [2023-11-23 10:23:16,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 10:23:17,000 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 [2023-11-23 10:23:17,323 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 5 treesize of output 3 [2023-11-23 10:23:17,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 14 treesize of output 3 [2023-11-23 10:23:17,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 14 treesize of output 3 [2023-11-23 10:23:17,499 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-23 10:23:17,499 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 19 treesize of output 16 [2023-11-23 10:23:17,508 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 5 treesize of output 3 [2023-11-23 10:23:17,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 14 treesize of output 3 [2023-11-23 10:23:17,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 14 treesize of output 3 [2023-11-23 10:23:17,551 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-23 10:23:17,552 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 19 treesize of output 16 [2023-11-23 10:23:17,558 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 5 treesize of output 3 [2023-11-23 10:23:17,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 14 treesize of output 3 [2023-11-23 10:23:17,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 14 treesize of output 3 [2023-11-23 10:23:17,600 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-23 10:23:17,600 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 19 treesize of output 16 [2023-11-23 10:23:17,606 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 5 treesize of output 3 [2023-11-23 10:23:17,632 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 7 treesize of output 6 [2023-11-23 10:23:17,695 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 5 treesize of output 3 [2023-11-23 10:23:17,814 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-23 10:23:17,814 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 [2023-11-23 10:23:17,903 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 15 treesize of output 10 [2023-11-23 10:23:17,980 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 15 treesize of output 10 [2023-11-23 10:23:18,065 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 16 treesize of output 12 [2023-11-23 10:23:18,102 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 225 proven. 61 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2023-11-23 10:23:18,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 10:24:00,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945205816] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:24:00,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 10:24:00,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 23] total 39 [2023-11-23 10:24:00,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415583043] [2023-11-23 10:24:00,496 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 10:24:00,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-11-23 10:24:00,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:24:00,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-11-23 10:24:00,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1656, Unknown=22, NotChecked=0, Total=1806 [2023-11-23 10:24:00,498 INFO L87 Difference]: Start difference. First operand 2299 states and 3411 transitions. Second operand has 39 states, 33 states have (on average 4.121212121212121) internal successors, (136), 29 states have internal predecessors, (136), 16 states have call successors, (44), 9 states have call predecessors, (44), 11 states have return successors, (36), 21 states have call predecessors, (36), 16 states have call successors, (36) [2023-11-23 10:24:03,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:24:24,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:24:35,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:24:40,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:24:42,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:24:45,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:24:49,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:24:54,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:25:05,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:08,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:11,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:12,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:14,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:15,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:17,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:19,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:21,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:22,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:24,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:25,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:26,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:29,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:31,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:35,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:25:38,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:25:43,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:25:50,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:25:53,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:25:55,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:25:55,222 INFO L93 Difference]: Finished difference Result 7997 states and 11716 transitions. [2023-11-23 10:25:55,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-11-23 10:25:55,223 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 33 states have (on average 4.121212121212121) internal successors, (136), 29 states have internal predecessors, (136), 16 states have call successors, (44), 9 states have call predecessors, (44), 11 states have return successors, (36), 21 states have call predecessors, (36), 16 states have call successors, (36) Word has length 208 [2023-11-23 10:25:55,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:25:55,246 INFO L225 Difference]: With dead ends: 7997 [2023-11-23 10:25:55,247 INFO L226 Difference]: Without dead ends: 5710 [2023-11-23 10:25:55,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 305 SyntacticMatches, 4 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3445 ImplicationChecksByTransitivity, 46.4s TimeCoverageRelationStatistics Valid=1595, Invalid=11723, Unknown=22, NotChecked=0, Total=13340 [2023-11-23 10:25:55,259 INFO L413 NwaCegarLoop]: 1524 mSDtfsCounter, 8678 mSDsluCounter, 33205 mSDsCounter, 0 mSdLazyCounter, 34732 mSolverCounterSat, 3876 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8775 SdHoareTripleChecker+Valid, 34729 SdHoareTripleChecker+Invalid, 38627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 3876 IncrementalHoareTripleChecker+Valid, 34732 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 110.3s IncrementalHoareTripleChecker+Time [2023-11-23 10:25:55,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8775 Valid, 34729 Invalid, 38627 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [3876 Valid, 34732 Invalid, 19 Unknown, 0 Unchecked, 110.3s Time] [2023-11-23 10:25:55,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5710 states. [2023-11-23 10:25:55,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5710 to 5149. [2023-11-23 10:25:55,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 3716 states have (on average 1.4389128094725512) internal successors, (5347), 3849 states have internal predecessors, (5347), 1023 states have call successors, (1023), 411 states have call predecessors, (1023), 409 states have return successors, (1186), 901 states have call predecessors, (1186), 1023 states have call successors, (1186) [2023-11-23 10:25:55,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 7556 transitions. [2023-11-23 10:25:55,501 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 7556 transitions. Word has length 208 [2023-11-23 10:25:55,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:25:55,502 INFO L495 AbstractCegarLoop]: Abstraction has 5149 states and 7556 transitions. [2023-11-23 10:25:55,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 33 states have (on average 4.121212121212121) internal successors, (136), 29 states have internal predecessors, (136), 16 states have call successors, (44), 9 states have call predecessors, (44), 11 states have return successors, (36), 21 states have call predecessors, (36), 16 states have call successors, (36) [2023-11-23 10:25:55,503 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 7556 transitions. [2023-11-23 10:25:55,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-23 10:25:55,522 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:25:55,522 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:25:55,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 10:25:55,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:25:55,741 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:25:55,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:25:55,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1473651786, now seen corresponding path program 1 times [2023-11-23 10:25:55,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:25:55,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251486519] [2023-11-23 10:25:55,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:25:55,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:25:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:55,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:55,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:55,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:55,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:55,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:25:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:55,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:55,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:25:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:25:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:25:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 10:25:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:25:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 10:25:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 10:25:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:25:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-23 10:25:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-11-23 10:25:56,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 10:25:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:56,169 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 542 trivial. 0 not checked. [2023-11-23 10:25:56,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:25:56,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251486519] [2023-11-23 10:25:56,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251486519] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:25:56,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:25:56,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 10:25:56,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468392765] [2023-11-23 10:25:56,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:25:56,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 10:25:56,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:25:56,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 10:25:56,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 10:25:56,171 INFO L87 Difference]: Start difference. First operand 5149 states and 7556 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 10:26:02,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:04,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:05,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:26:05,182 INFO L93 Difference]: Finished difference Result 10070 states and 14794 transitions. [2023-11-23 10:26:05,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 10:26:05,182 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 208 [2023-11-23 10:26:05,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:26:05,223 INFO L225 Difference]: With dead ends: 10070 [2023-11-23 10:26:05,224 INFO L226 Difference]: Without dead ends: 5324 [2023-11-23 10:26:05,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-23 10:26:05,240 INFO L413 NwaCegarLoop]: 1328 mSDtfsCounter, 510 mSDsluCounter, 3438 mSDsCounter, 0 mSdLazyCounter, 2208 mSolverCounterSat, 579 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 4766 SdHoareTripleChecker+Invalid, 2788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 579 IncrementalHoareTripleChecker+Valid, 2208 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2023-11-23 10:26:05,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 4766 Invalid, 2788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [579 Valid, 2208 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2023-11-23 10:26:05,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5324 states. [2023-11-23 10:26:05,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5324 to 5149. [2023-11-23 10:26:05,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 3716 states have (on average 1.4375672766415502) internal successors, (5342), 3849 states have internal predecessors, (5342), 1023 states have call successors, (1023), 411 states have call predecessors, (1023), 409 states have return successors, (1186), 901 states have call predecessors, (1186), 1023 states have call successors, (1186) [2023-11-23 10:26:05,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 7551 transitions. [2023-11-23 10:26:05,546 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 7551 transitions. Word has length 208 [2023-11-23 10:26:05,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:26:05,546 INFO L495 AbstractCegarLoop]: Abstraction has 5149 states and 7551 transitions. [2023-11-23 10:26:05,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 10:26:05,546 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 7551 transitions. [2023-11-23 10:26:05,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-23 10:26:05,562 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:26:05,562 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:26:05,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 10:26:05,563 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:26:05,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:26:05,563 INFO L85 PathProgramCache]: Analyzing trace with hash 393347972, now seen corresponding path program 1 times [2023-11-23 10:26:05,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:26:05,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468899777] [2023-11-23 10:26:05,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:26:05,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:26:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:06,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:26:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:06,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:26:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:26:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:26:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 10:26:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:26:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 10:26:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 10:26:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:26:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-23 10:26:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-11-23 10:26:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 10:26:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,327 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2023-11-23 10:26:06,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:26:06,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468899777] [2023-11-23 10:26:06,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468899777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:26:06,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:26:06,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 10:26:06,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070436095] [2023-11-23 10:26:06,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:26:06,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 10:26:06,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:26:06,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 10:26:06,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-23 10:26:06,331 INFO L87 Difference]: Start difference. First operand 5149 states and 7551 transitions. Second operand has 12 states, 10 states have (on average 8.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 10:26:16,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:19,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:23,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:25,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:26:25,158 INFO L93 Difference]: Finished difference Result 10018 states and 14707 transitions. [2023-11-23 10:26:25,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-23 10:26:25,159 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) Word has length 208 [2023-11-23 10:26:25,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:26:25,188 INFO L225 Difference]: With dead ends: 10018 [2023-11-23 10:26:25,188 INFO L226 Difference]: Without dead ends: 5272 [2023-11-23 10:26:25,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2023-11-23 10:26:25,204 INFO L413 NwaCegarLoop]: 1493 mSDtfsCounter, 1432 mSDsluCounter, 8874 mSDsCounter, 0 mSdLazyCounter, 7137 mSolverCounterSat, 1154 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 10367 SdHoareTripleChecker+Invalid, 8292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1154 IncrementalHoareTripleChecker+Valid, 7137 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2023-11-23 10:26:25,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 10367 Invalid, 8292 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1154 Valid, 7137 Invalid, 1 Unknown, 0 Unchecked, 18.3s Time] [2023-11-23 10:26:25,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5272 states. [2023-11-23 10:26:25,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5272 to 5019. [2023-11-23 10:26:25,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5019 states, 3622 states have (on average 1.4389839867476533) internal successors, (5212), 3755 states have internal predecessors, (5212), 999 states have call successors, (999), 399 states have call predecessors, (999), 397 states have return successors, (1162), 877 states have call predecessors, (1162), 999 states have call successors, (1162) [2023-11-23 10:26:25,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5019 states to 5019 states and 7373 transitions. [2023-11-23 10:26:25,479 INFO L78 Accepts]: Start accepts. Automaton has 5019 states and 7373 transitions. Word has length 208 [2023-11-23 10:26:25,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:26:25,480 INFO L495 AbstractCegarLoop]: Abstraction has 5019 states and 7373 transitions. [2023-11-23 10:26:25,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 10:26:25,480 INFO L276 IsEmpty]: Start isEmpty. Operand 5019 states and 7373 transitions. [2023-11-23 10:26:25,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-11-23 10:26:25,496 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:26:25,496 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:26:25,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 10:26:25,496 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:26:25,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:26:25,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1258522047, now seen corresponding path program 1 times [2023-11-23 10:26:25,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:26:25,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157089285] [2023-11-23 10:26:25,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:26:25,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:26:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:26,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:27,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:26:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:26:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:26:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:26:27,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 10:26:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:26:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 10:26:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 10:26:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:26:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-23 10:26:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-23 10:26:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-23 10:26:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-11-23 10:26:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 10:26:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:27,459 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 53 proven. 50 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2023-11-23 10:26:27,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:26:27,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157089285] [2023-11-23 10:26:27,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157089285] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:26:27,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589541378] [2023-11-23 10:26:27,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:26:27,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:26:27,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:26:27,471 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 10:26:27,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 10:26:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:28,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 2042 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-23 10:26:28,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 10:26:28,389 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 7 treesize of output 6 [2023-11-23 10:26:28,873 INFO L349 Elim1Store]: treesize reduction 21, result has 46.2 percent of original size [2023-11-23 10:26:28,888 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 38 [2023-11-23 10:26:28,903 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 16 treesize of output 1 [2023-11-23 10:26:29,269 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 38 treesize of output 30 [2023-11-23 10:26:29,395 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 87 proven. 53 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2023-11-23 10:26:29,396 INFO L327 TraceCheckSpWp]: Computing backward predicates... Killed by 15