./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 6ae2ee47 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-6ae2ee4-m [2023-11-22 23:53:30,352 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 23:53:30,415 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-22 23:53:30,418 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 23:53:30,419 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 23:53:30,467 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 23:53:30,468 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 23:53:30,468 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 23:53:30,469 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 23:53:30,469 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 23:53:30,469 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 23:53:30,469 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 23:53:30,470 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 23:53:30,470 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 23:53:30,470 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 23:53:30,471 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 23:53:30,471 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 23:53:30,471 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 23:53:30,471 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 23:53:30,472 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 23:53:30,472 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 23:53:30,472 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 23:53:30,472 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 23:53:30,473 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 23:53:30,473 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 23:53:30,473 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 23:53:30,474 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 23:53:30,474 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 23:53:30,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 23:53:30,474 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 23:53:30,475 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 23:53:30,475 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 23:53:30,475 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 23:53:30,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 23:53:30,476 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 23:53:30,476 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 23:53:30,476 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 23:53:30,476 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 23:53:30,477 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 23:53:30,477 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 271771768c3380f5979c29c79a53c5e282857dcb6c4c2b744d0fa4e6e2c0dd66 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-22 23:53:30,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 23:53:30,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 23:53:30,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 23:53:30,633 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 23:53:30,634 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 23:53:30,634 INFO L431 ainManager$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 [2023-11-22 23:53:31,589 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 23:53:31,967 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 23:53:31,968 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 [2023-11-22 23:53:31,999 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3464c49ab/91846563060d40c49c8a5b12687f20cc/FLAGcb0d2ee09 [2023-11-22 23:53:32,017 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3464c49ab/91846563060d40c49c8a5b12687f20cc [2023-11-22 23:53:32,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 23:53:32,021 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 23:53:32,022 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 23:53:32,022 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 23:53:32,026 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 23:53:32,026 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:53:32" (1/1) ... [2023-11-22 23:53:32,027 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a951cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:32, skipping insertion in model container [2023-11-22 23:53:32,027 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:53:32" (1/1) ... [2023-11-22 23:53:32,105 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 23:53:33,101 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] [2023-11-22 23:53:33,123 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 23:53:33,152 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 23:53:33,315 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] [2023-11-22 23:53:33,324 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 23:53:33,376 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 23:53:33,381 INFO L206 MainTranslator]: Completed translation [2023-11-22 23:53:33,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:33 WrapperNode [2023-11-22 23:53:33,382 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 23:53:33,382 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 23:53:33,383 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 23:53:33,383 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 23:53:33,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:33" (1/1) ... [2023-11-22 23:53:33,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:33" (1/1) ... [2023-11-22 23:53:33,552 INFO L138 Inliner]: procedures = 159, calls = 1260, calls flagged for inlining = 71, calls inlined = 71, statements flattened = 3369 [2023-11-22 23:53:33,553 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 23:53:33,553 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 23:53:33,553 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 23:53:33,553 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 23:53:33,560 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:33" (1/1) ... [2023-11-22 23:53:33,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:33" (1/1) ... [2023-11-22 23:53:33,580 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:33" (1/1) ... [2023-11-22 23:53:33,581 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:33" (1/1) ... [2023-11-22 23:53:33,643 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:33" (1/1) ... [2023-11-22 23:53:33,661 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:33" (1/1) ... [2023-11-22 23:53:33,686 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:33" (1/1) ... [2023-11-22 23:53:33,703 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:33" (1/1) ... [2023-11-22 23:53:33,725 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 23:53:33,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 23:53:33,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 23:53:33,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 23:53:33,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:33" (1/1) ... [2023-11-22 23:53:33,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 23:53:33,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:53:33,757 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) [2023-11-22 23:53:33,774 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 [2023-11-22 23:53:33,792 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_radio_text [2023-11-22 23:53:33,792 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_radio_text [2023-11-22 23:53:33,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-22 23:53:33,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-22 23:53:33,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-22 23:53:33,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-22 23:53:33,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-22 23:53:33,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-22 23:53:33,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-22 23:53:33,793 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-22 23:53:33,794 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_is_valid [2023-11-22 23:53:33,794 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_is_valid [2023-11-22 23:53:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_wait_stc [2023-11-22 23:53:33,795 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_wait_stc [2023-11-22 23:53:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_usecs [2023-11-22 23:53:33,795 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_usecs [2023-11-22 23:53:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_mute [2023-11-22 23:53:33,795 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_mute [2023-11-22 23:53:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-22 23:53:33,795 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-22 23:53:33,796 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2023-11-22 23:53:33,796 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2023-11-22 23:53:33,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-22 23:53:33,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-22 23:53:33,797 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_power_state [2023-11-22 23:53:33,797 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_power_state [2023-11-22 23:53:33,797 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_choose_econtrol_action [2023-11-22 23:53:33,797 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_choose_econtrol_action [2023-11-22 23:53:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_len [2023-11-22 23:53:33,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_len [2023-11-22 23:53:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-22 23:53:33,798 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-22 23:53:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-22 23:53:33,799 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-22 23:53:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_tune [2023-11-22 23:53:33,799 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_tune [2023-11-22 23:53:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-22 23:53:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-22 23:53:33,800 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-22 23:53:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-22 23:53:33,800 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-22 23:53:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-11-22 23:53:33,800 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-11-22 23:53:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-22 23:53:33,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-22 23:53:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_strlen [2023-11-22 23:53:33,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_strlen [2023-11-22 23:53:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2023-11-22 23:53:33,801 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2023-11-22 23:53:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-22 23:53:33,801 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-22 23:53:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_rds_buff [2023-11-22 23:53:33,801 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_rds_buff [2023-11-22 23:53:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-22 23:53:33,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-22 23:53:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-22 23:53:33,802 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-22 23:53:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-22 23:53:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_query_fill [2023-11-22 23:53:33,802 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_query_fill [2023-11-22 23:53:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure validate_range [2023-11-22 23:53:33,802 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_range [2023-11-22 23:53:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_free [2023-11-22 23:53:33,802 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_free [2023-11-22 23:53:33,803 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_integers [2023-11-22 23:53:33,803 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_integers [2023-11-22 23:53:33,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 23:53:33,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-22 23:53:33,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-22 23:53:33,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-22 23:53:33,803 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_disable [2023-11-22 23:53:33,803 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_disable [2023-11-22 23:53:33,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 23:53:33,804 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_free [2023-11-22 23:53:33,804 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_free [2023-11-22 23:53:33,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-22 23:53:33,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-22 23:53:33,804 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_send_command [2023-11-22 23:53:33,804 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_send_command [2023-11-22 23:53:33,804 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_get_subdevdata [2023-11-22 23:53:33,804 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_get_subdevdata [2023-11-22 23:53:33,804 INFO L130 BoogieDeclarations]: Found specification of procedure usecs_to_jiffies [2023-11-22 23:53:33,805 INFO L138 BoogieDeclarations]: Found implementation of procedure usecs_to_jiffies [2023-11-22 23:53:33,805 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_property [2023-11-22 23:53:33,805 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_property [2023-11-22 23:53:33,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-22 23:53:33,805 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-22 23:53:33,805 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-22 23:53:33,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 23:53:33,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-22 23:53:33,805 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_read_property [2023-11-22 23:53:33,805 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_read_property [2023-11-22 23:53:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-22 23:53:33,806 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-22 23:53:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_frequency [2023-11-22 23:53:33,806 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_frequency [2023-11-22 23:53:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-22 23:53:33,806 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-22 23:53:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_copy_from_user_7 [2023-11-22 23:53:33,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_copy_from_user_7 [2023-11-22 23:53:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-22 23:53:33,807 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-22 23:53:33,807 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-22 23:53:33,807 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-22 23:53:33,807 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-22 23:53:33,807 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-22 23:53:33,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-22 23:53:33,807 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_tune_status [2023-11-22 23:53:33,807 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_tune_status [2023-11-22 23:53:33,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_ret_val [2023-11-22 23:53:33,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_ret_val [2023-11-22 23:53:33,808 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_update_tune_status [2023-11-22 23:53:33,808 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_update_tune_status [2023-11-22 23:53:33,808 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_ps_name [2023-11-22 23:53:33,808 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_ps_name [2023-11-22 23:53:33,808 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_queryctrl [2023-11-22 23:53:33,808 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_queryctrl [2023-11-22 23:53:33,808 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_modulator [2023-11-22 23:53:33,809 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_modulator [2023-11-22 23:53:33,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-22 23:53:33,809 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-22 23:53:33,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 23:53:33,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 23:53:34,195 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 23:53:34,198 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 23:53:34,527 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-22 23:53:36,680 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 23:53:36,807 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 23:53:36,807 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-22 23:53:36,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:53:36 BoogieIcfgContainer [2023-11-22 23:53:36,808 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 23:53:36,810 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 23:53:36,810 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 23:53:36,813 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 23:53:36,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:53:32" (1/3) ... [2023-11-22 23:53:36,814 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fd4aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:53:36, skipping insertion in model container [2023-11-22 23:53:36,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:33" (2/3) ... [2023-11-22 23:53:36,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fd4aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:53:36, skipping insertion in model container [2023-11-22 23:53:36,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:53:36" (3/3) ... [2023-11-22 23:53:36,821 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 [2023-11-22 23:53:36,835 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 23:53:36,835 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 23:53:36,885 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 23:53:36,890 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;@5f6d38cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 23:53:36,891 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 23:53:36,898 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) [2023-11-22 23:53:36,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-22 23:53:36,914 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:53:36,915 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] [2023-11-22 23:53:36,916 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:53:36,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:53:36,919 INFO L85 PathProgramCache]: Analyzing trace with hash -974574699, now seen corresponding path program 1 times [2023-11-22 23:53:36,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:53:36,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563125229] [2023-11-22 23:53:36,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:53:36,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:53:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:37,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:37,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:37,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:37,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:53:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:37,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:37,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:37,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:53:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:37,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:37,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:37,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:53:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:37,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 23:53:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:37,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:53:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:37,575 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-22 23:53:37,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:53:37,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563125229] [2023-11-22 23:53:37,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563125229] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:53:37,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:53:37,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 23:53:37,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231132410] [2023-11-22 23:53:37,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:53:37,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 23:53:37,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:53:37,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 23:53:37,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-22 23:53:37,607 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) [2023-11-22 23:53:42,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:53:42,215 INFO L93 Difference]: Finished difference Result 2330 states and 3582 transitions. [2023-11-22 23:53:42,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 23:53:42,217 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 [2023-11-22 23:53:42,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:53:42,236 INFO L225 Difference]: With dead ends: 2330 [2023-11-22 23:53:42,236 INFO L226 Difference]: Without dead ends: 1193 [2023-11-22 23:53:42,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-22 23:53:42,249 INFO L413 NwaCegarLoop]: 1326 mSDtfsCounter, 501 mSDsluCounter, 2259 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 611 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 3585 SdHoareTripleChecker+Invalid, 2342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 611 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-22 23:53:42,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 3585 Invalid, 2342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [611 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-22 23:53:42,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2023-11-22 23:53:42,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1117. [2023-11-22 23:53:42,331 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) [2023-11-22 23:53:42,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1687 transitions. [2023-11-22 23:53:42,339 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1687 transitions. Word has length 81 [2023-11-22 23:53:42,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:53:42,339 INFO L495 AbstractCegarLoop]: Abstraction has 1117 states and 1687 transitions. [2023-11-22 23:53:42,340 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) [2023-11-22 23:53:42,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1687 transitions. [2023-11-22 23:53:42,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-22 23:53:42,355 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:53:42,355 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] [2023-11-22 23:53:42,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 23:53:42,356 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:53:42,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:53:42,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1781634639, now seen corresponding path program 1 times [2023-11-22 23:53:42,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:53:42,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555772204] [2023-11-22 23:53:42,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:53:42,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:53:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:42,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:42,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:42,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:42,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:53:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:42,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:42,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:42,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:42,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:53:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:42,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:42,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:42,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:53:42,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:42,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 23:53:42,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:42,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:53:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:42,752 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-22 23:53:42,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:53:42,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555772204] [2023-11-22 23:53:42,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555772204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:53:42,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:53:42,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 23:53:42,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466080872] [2023-11-22 23:53:42,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:53:42,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 23:53:42,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:53:42,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 23:53:42,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-22 23:53:42,771 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) [2023-11-22 23:53:46,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:53:46,893 INFO L93 Difference]: Finished difference Result 2840 states and 4284 transitions. [2023-11-22 23:53:46,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 23:53:46,893 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 [2023-11-22 23:53:46,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:53:46,903 INFO L225 Difference]: With dead ends: 2840 [2023-11-22 23:53:46,903 INFO L226 Difference]: Without dead ends: 1732 [2023-11-22 23:53:46,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-22 23:53:46,926 INFO L413 NwaCegarLoop]: 1325 mSDtfsCounter, 1511 mSDsluCounter, 2689 mSDsCounter, 0 mSdLazyCounter, 1804 mSolverCounterSat, 917 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1611 SdHoareTripleChecker+Valid, 4014 SdHoareTripleChecker+Invalid, 2721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 917 IncrementalHoareTripleChecker+Valid, 1804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-22 23:53:46,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1611 Valid, 4014 Invalid, 2721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [917 Valid, 1804 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-22 23:53:46,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2023-11-22 23:53:46,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1604. [2023-11-22 23:53:46,975 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) [2023-11-22 23:53:46,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2395 transitions. [2023-11-22 23:53:46,982 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2395 transitions. Word has length 81 [2023-11-22 23:53:46,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:53:46,983 INFO L495 AbstractCegarLoop]: Abstraction has 1604 states and 2395 transitions. [2023-11-22 23:53:46,983 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) [2023-11-22 23:53:46,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2395 transitions. [2023-11-22 23:53:46,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-11-22 23:53:46,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:53:46,987 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] [2023-11-22 23:53:46,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-22 23:53:46,988 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:53:46,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:53:46,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1560475453, now seen corresponding path program 1 times [2023-11-22 23:53:46,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:53:46,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063296374] [2023-11-22 23:53:46,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:53:46,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:53:47,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:47,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:53:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:47,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:47,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:53:47,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:47,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:53:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:53:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 23:53:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:47,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 23:53:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 23:53:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:53:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:53:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:47,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:47,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:47,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 23:53:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:48,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:48,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:48,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:48,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-22 23:53:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:48,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:53:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:48,046 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2023-11-22 23:53:48,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:53:48,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063296374] [2023-11-22 23:53:48,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063296374] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:53:48,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:53:48,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-22 23:53:48,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297557102] [2023-11-22 23:53:48,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:53:48,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-22 23:53:48,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:53:48,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-22 23:53:48,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-22 23:53:48,050 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) [2023-11-22 23:53:55,967 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 [] [2023-11-22 23:53:57,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:54:01,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:54:05,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:54:05,037 INFO L93 Difference]: Finished difference Result 4022 states and 5987 transitions. [2023-11-22 23:54:05,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-22 23:54:05,037 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 [2023-11-22 23:54:05,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:54:05,052 INFO L225 Difference]: With dead ends: 4022 [2023-11-22 23:54:05,053 INFO L226 Difference]: Without dead ends: 2430 [2023-11-22 23:54:05,057 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 [2023-11-22 23:54:05,058 INFO L413 NwaCegarLoop]: 1488 mSDtfsCounter, 1170 mSDsluCounter, 9732 mSDsCounter, 0 mSdLazyCounter, 7810 mSolverCounterSat, 830 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 11220 SdHoareTripleChecker+Invalid, 8643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 830 IncrementalHoareTripleChecker+Valid, 7810 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2023-11-22 23:54:05,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 11220 Invalid, 8643 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [830 Valid, 7810 Invalid, 3 Unknown, 0 Unchecked, 16.7s Time] [2023-11-22 23:54:05,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states. [2023-11-22 23:54:05,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 2289. [2023-11-22 23:54:05,108 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) [2023-11-22 23:54:05,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2289 states to 2289 states and 3400 transitions. [2023-11-22 23:54:05,115 INFO L78 Accepts]: Start accepts. Automaton has 2289 states and 3400 transitions. Word has length 189 [2023-11-22 23:54:05,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:54:05,118 INFO L495 AbstractCegarLoop]: Abstraction has 2289 states and 3400 transitions. [2023-11-22 23:54:05,118 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) [2023-11-22 23:54:05,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states and 3400 transitions. [2023-11-22 23:54:05,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-22 23:54:05,124 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:54:05,124 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] [2023-11-22 23:54:05,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-22 23:54:05,124 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:54:05,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:54:05,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1330710477, now seen corresponding path program 1 times [2023-11-22 23:54:05,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:54:05,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974818609] [2023-11-22 23:54:05,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:54:05,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:54:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:05,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:54:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:54:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:54:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:54:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 23:54:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 23:54:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 23:54:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:54:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:05,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:54:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 23:54:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-22 23:54:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-22 23:54:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-11-22 23:54:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:05,575 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2023-11-22 23:54:05,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:54:05,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974818609] [2023-11-22 23:54:05,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974818609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:54:05,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:54:05,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 23:54:05,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111978507] [2023-11-22 23:54:05,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:54:05,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 23:54:05,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:54:05,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 23:54:05,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-22 23:54:05,578 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) [2023-11-22 23:54:09,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:54:10,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:54:11,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:54:11,404 INFO L93 Difference]: Finished difference Result 2407 states and 3573 transitions. [2023-11-22 23:54:11,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 23:54:11,404 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 [2023-11-22 23:54:11,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:54:11,413 INFO L225 Difference]: With dead ends: 2407 [2023-11-22 23:54:11,414 INFO L226 Difference]: Without dead ends: 2405 [2023-11-22 23:54:11,415 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 [2023-11-22 23:54:11,415 INFO L413 NwaCegarLoop]: 1326 mSDtfsCounter, 591 mSDsluCounter, 3937 mSDsCounter, 0 mSdLazyCounter, 2273 mSolverCounterSat, 602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s 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, 5.7s IncrementalHoareTripleChecker+Time [2023-11-22 23:54:11,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 5263 Invalid, 2875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [602 Valid, 2273 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-11-22 23:54:11,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2023-11-22 23:54:11,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 2293. [2023-11-22 23:54:11,477 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) [2023-11-22 23:54:11,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2293 states to 2293 states and 3402 transitions. [2023-11-22 23:54:11,490 INFO L78 Accepts]: Start accepts. Automaton has 2293 states and 3402 transitions. Word has length 208 [2023-11-22 23:54:11,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:54:11,492 INFO L495 AbstractCegarLoop]: Abstraction has 2293 states and 3402 transitions. [2023-11-22 23:54:11,492 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) [2023-11-22 23:54:11,492 INFO L276 IsEmpty]: Start isEmpty. Operand 2293 states and 3402 transitions. [2023-11-22 23:54:11,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-22 23:54:11,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:54:11,500 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] [2023-11-22 23:54:11,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-22 23:54:11,500 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:54:11,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:54:11,501 INFO L85 PathProgramCache]: Analyzing trace with hash -419741630, now seen corresponding path program 1 times [2023-11-22 23:54:11,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:54:11,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243963019] [2023-11-22 23:54:11,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:54:11,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:54:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:54:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:54:12,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:12,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:54:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:54:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 23:54:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:12,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:12,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 23:54:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 23:54:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:12,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:54:12,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:54:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 23:54:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:12,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-22 23:54:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-22 23:54:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-11-22 23:54:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:54:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:12,794 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2023-11-22 23:54:12,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:54:12,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243963019] [2023-11-22 23:54:12,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243963019] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:54:12,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:54:12,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-22 23:54:12,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870384631] [2023-11-22 23:54:12,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:54:12,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-22 23:54:12,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:54:12,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-22 23:54:12,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-22 23:54:12,796 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) [2023-11-22 23:54:18,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:54:21,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:54:23,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-22 23:54:24,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:54:24,170 INFO L93 Difference]: Finished difference Result 4707 states and 6990 transitions. [2023-11-22 23:54:24,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-22 23:54:24,170 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 [2023-11-22 23:54:24,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:54:24,179 INFO L225 Difference]: With dead ends: 4707 [2023-11-22 23:54:24,179 INFO L226 Difference]: Without dead ends: 2426 [2023-11-22 23:54:24,185 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 [2023-11-22 23:54:24,186 INFO L413 NwaCegarLoop]: 1305 mSDtfsCounter, 835 mSDsluCounter, 5894 mSDsCounter, 0 mSdLazyCounter, 4272 mSolverCounterSat, 904 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s 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, 11.2s IncrementalHoareTripleChecker+Time [2023-11-22 23:54:24,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 7199 Invalid, 5176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [904 Valid, 4272 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2023-11-22 23:54:24,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states. [2023-11-22 23:54:24,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 2298. [2023-11-22 23:54:24,233 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) [2023-11-22 23:54:24,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2298 states to 2298 states and 3410 transitions. [2023-11-22 23:54:24,239 INFO L78 Accepts]: Start accepts. Automaton has 2298 states and 3410 transitions. Word has length 207 [2023-11-22 23:54:24,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:54:24,240 INFO L495 AbstractCegarLoop]: Abstraction has 2298 states and 3410 transitions. [2023-11-22 23:54:24,240 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) [2023-11-22 23:54:24,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2298 states and 3410 transitions. [2023-11-22 23:54:24,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-22 23:54:24,246 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:54:24,246 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] [2023-11-22 23:54:24,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-22 23:54:24,247 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:54:24,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:54:24,247 INFO L85 PathProgramCache]: Analyzing trace with hash -158432288, now seen corresponding path program 1 times [2023-11-22 23:54:24,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:54:24,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140555335] [2023-11-22 23:54:24,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:54:24,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:54:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:25,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:54:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:25,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:54:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:54:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:54:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 23:54:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 23:54:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:25,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 23:54:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:25,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:54:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:54:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:25,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 23:54:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-22 23:54:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-22 23:54:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-11-22 23:54:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:54:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:25,561 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2023-11-22 23:54:25,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:54:25,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140555335] [2023-11-22 23:54:25,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140555335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:54:25,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:54:25,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-22 23:54:25,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936229231] [2023-11-22 23:54:25,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:54:25,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-22 23:54:25,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:54:25,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-22 23:54:25,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-22 23:54:25,563 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) [2023-11-22 23:54:30,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:54:34,204 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 [] [2023-11-22 23:54:36,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:54:36,498 INFO L93 Difference]: Finished difference Result 4703 states and 6981 transitions. [2023-11-22 23:54:36,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-22 23:54:36,499 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 [2023-11-22 23:54:36,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:54:36,513 INFO L225 Difference]: With dead ends: 4703 [2023-11-22 23:54:36,513 INFO L226 Difference]: Without dead ends: 2417 [2023-11-22 23:54:36,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2023-11-22 23:54:36,519 INFO L413 NwaCegarLoop]: 1307 mSDtfsCounter, 824 mSDsluCounter, 7104 mSDsCounter, 0 mSdLazyCounter, 4769 mSolverCounterSat, 891 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 8411 SdHoareTripleChecker+Invalid, 5661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 891 IncrementalHoareTripleChecker+Valid, 4769 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-11-22 23:54:36,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 8411 Invalid, 5661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [891 Valid, 4769 Invalid, 1 Unknown, 0 Unchecked, 10.7s Time] [2023-11-22 23:54:36,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2417 states. [2023-11-22 23:54:36,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2417 to 2299. [2023-11-22 23:54:36,564 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) [2023-11-22 23:54:36,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 3411 transitions. [2023-11-22 23:54:36,572 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 3411 transitions. Word has length 208 [2023-11-22 23:54:36,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:54:36,574 INFO L495 AbstractCegarLoop]: Abstraction has 2299 states and 3411 transitions. [2023-11-22 23:54:36,575 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) [2023-11-22 23:54:36,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 3411 transitions. [2023-11-22 23:54:36,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-22 23:54:36,582 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:54:36,582 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] [2023-11-22 23:54:36,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-22 23:54:36,583 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:54:36,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:54:36,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1643374416, now seen corresponding path program 1 times [2023-11-22 23:54:36,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:54:36,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033088184] [2023-11-22 23:54:36,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:54:36,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:54:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:37,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:37,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:37,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:37,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:54:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:37,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:37,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:37,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:37,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:54:37,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:37,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:37,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:37,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:54:37,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:54:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 23:54:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 23:54:38,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 23:54:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:38,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:54:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:54:38,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:38,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 23:54:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-22 23:54:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-22 23:54:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-11-22 23:54:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-22 23:54:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,318 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 84 proven. 17 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2023-11-22 23:54:38,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:54:38,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033088184] [2023-11-22 23:54:38,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033088184] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:54:38,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170637795] [2023-11-22 23:54:38,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:54:38,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:54:38,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:54:38,320 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) [2023-11-22 23:54:38,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-22 23:54:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:38,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 2092 conjuncts, 63 conjunts are in the unsatisfiable core [2023-11-22 23:54:38,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:54:39,009 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 [2023-11-22 23:54:39,227 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 [2023-11-22 23:54:39,299 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 [2023-11-22 23:54:39,309 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 [2023-11-22 23:54:39,337 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-22 23:54:39,338 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 [2023-11-22 23:54:39,346 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 [2023-11-22 23:54:39,355 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 [2023-11-22 23:54:39,366 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 [2023-11-22 23:54:39,387 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-22 23:54:39,388 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 [2023-11-22 23:54:39,393 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 [2023-11-22 23:54:39,400 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 [2023-11-22 23:54:39,410 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 [2023-11-22 23:54:39,430 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-22 23:54:39,431 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 [2023-11-22 23:54:39,436 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 [2023-11-22 23:54:39,462 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 [2023-11-22 23:54:39,523 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 [2023-11-22 23:54:39,637 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-22 23:54:39,637 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 [2023-11-22 23:54:39,723 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 [2023-11-22 23:54:39,797 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 [2023-11-22 23:54:39,943 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 [2023-11-22 23:54:39,982 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 225 proven. 61 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2023-11-22 23:54:39,982 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 23:55:22,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170637795] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:55:22,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 23:55:22,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 23] total 39 [2023-11-22 23:55:22,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908780495] [2023-11-22 23:55:22,327 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 23:55:22,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-11-22 23:55:22,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:55:22,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-11-22 23:55:22,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1656, Unknown=22, NotChecked=0, Total=1806 [2023-11-22 23:55:22,329 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) [2023-11-22 23:55:25,247 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] [2023-11-22 23:55:45,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:55:57,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:56:02,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:56:06,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:56:10,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:56:23,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:56:25,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:56:28,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:56:29,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:56:32,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:56:34,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:56:37,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:56:40,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:56:43,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:56:47,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:56:50,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:56:56,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:56:58,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:57:01,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:57:03,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:57:03,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:57:03,769 INFO L93 Difference]: Finished difference Result 7997 states and 11716 transitions. [2023-11-22 23:57:03,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-11-22 23:57:03,770 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 [2023-11-22 23:57:03,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:57:03,791 INFO L225 Difference]: With dead ends: 7997 [2023-11-22 23:57:03,792 INFO L226 Difference]: Without dead ends: 5710 [2023-11-22 23:57:03,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 305 SyntacticMatches, 4 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3445 ImplicationChecksByTransitivity, 46.2s TimeCoverageRelationStatistics Valid=1595, Invalid=11723, Unknown=22, NotChecked=0, Total=13340 [2023-11-22 23:57:03,801 INFO L413 NwaCegarLoop]: 1524 mSDtfsCounter, 8678 mSDsluCounter, 33205 mSDsCounter, 0 mSdLazyCounter, 34735 mSolverCounterSat, 3876 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 93.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8775 SdHoareTripleChecker+Valid, 34729 SdHoareTripleChecker+Invalid, 38625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 3876 IncrementalHoareTripleChecker+Valid, 34735 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97.2s IncrementalHoareTripleChecker+Time [2023-11-22 23:57:03,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8775 Valid, 34729 Invalid, 38625 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [3876 Valid, 34735 Invalid, 14 Unknown, 0 Unchecked, 97.2s Time] [2023-11-22 23:57:03,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5710 states. [2023-11-22 23:57:04,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5710 to 5149. [2023-11-22 23:57:04,039 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) [2023-11-22 23:57:04,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 7556 transitions. [2023-11-22 23:57:04,054 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 7556 transitions. Word has length 208 [2023-11-22 23:57:04,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:57:04,054 INFO L495 AbstractCegarLoop]: Abstraction has 5149 states and 7556 transitions. [2023-11-22 23:57:04,055 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) [2023-11-22 23:57:04,055 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 7556 transitions. [2023-11-22 23:57:04,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-22 23:57:04,071 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:57:04,072 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] [2023-11-22 23:57:04,092 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-22 23:57:04,289 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 [2023-11-22 23:57:04,290 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:57:04,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:57:04,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1473651786, now seen corresponding path program 1 times [2023-11-22 23:57:04,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:57:04,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018840598] [2023-11-22 23:57:04,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:57:04,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:57:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:57:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:57:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:57:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:57:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 23:57:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 23:57:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:04,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 23:57:04,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:57:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:57:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:04,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 23:57:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-11-22 23:57:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-22 23:57:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:04,607 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 542 trivial. 0 not checked. [2023-11-22 23:57:04,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:57:04,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018840598] [2023-11-22 23:57:04,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018840598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:57:04,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:57:04,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 23:57:04,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573979649] [2023-11-22 23:57:04,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:57:04,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 23:57:04,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:57:04,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 23:57:04,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-22 23:57:04,609 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) [2023-11-22 23:57:11,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:57:11,020 INFO L93 Difference]: Finished difference Result 10070 states and 14794 transitions. [2023-11-22 23:57:11,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 23:57:11,021 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 [2023-11-22 23:57:11,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:57:11,039 INFO L225 Difference]: With dead ends: 10070 [2023-11-22 23:57:11,039 INFO L226 Difference]: Without dead ends: 5324 [2023-11-22 23:57:11,051 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 [2023-11-22 23:57:11,053 INFO L413 NwaCegarLoop]: 1328 mSDtfsCounter, 510 mSDsluCounter, 3438 mSDsCounter, 0 mSdLazyCounter, 2209 mSolverCounterSat, 579 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 4766 SdHoareTripleChecker+Invalid, 2788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 579 IncrementalHoareTripleChecker+Valid, 2209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-11-22 23:57:11,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 4766 Invalid, 2788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [579 Valid, 2209 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-11-22 23:57:11,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5324 states. [2023-11-22 23:57:11,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5324 to 5149. [2023-11-22 23:57:11,219 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) [2023-11-22 23:57:11,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 7551 transitions. [2023-11-22 23:57:11,233 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 7551 transitions. Word has length 208 [2023-11-22 23:57:11,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:57:11,233 INFO L495 AbstractCegarLoop]: Abstraction has 5149 states and 7551 transitions. [2023-11-22 23:57:11,234 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) [2023-11-22 23:57:11,234 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 7551 transitions. [2023-11-22 23:57:11,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-22 23:57:11,248 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:57:11,248 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] [2023-11-22 23:57:11,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-22 23:57:11,249 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:57:11,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:57:11,249 INFO L85 PathProgramCache]: Analyzing trace with hash 393347972, now seen corresponding path program 1 times [2023-11-22 23:57:11,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:57:11,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507068535] [2023-11-22 23:57:11,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:57:11,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:57:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:11,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:57:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:11,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:57:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:57:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:57:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 23:57:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 23:57:11,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 23:57:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:57:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:11,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:57:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:11,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 23:57:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:11,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:12,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:12,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-11-22 23:57:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:12,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-22 23:57:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:12,025 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2023-11-22 23:57:12,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:57:12,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507068535] [2023-11-22 23:57:12,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507068535] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:57:12,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:57:12,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-22 23:57:12,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830176747] [2023-11-22 23:57:12,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:57:12,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-22 23:57:12,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:57:12,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-22 23:57:12,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-22 23:57:12,028 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) [2023-11-22 23:57:24,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:57:26,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:57:28,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:57:29,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:57:30,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:57:32,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:57:35,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:57:35,051 INFO L93 Difference]: Finished difference Result 10018 states and 14707 transitions. [2023-11-22 23:57:35,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-22 23:57:35,051 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 [2023-11-22 23:57:35,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:57:35,069 INFO L225 Difference]: With dead ends: 10018 [2023-11-22 23:57:35,069 INFO L226 Difference]: Without dead ends: 5272 [2023-11-22 23:57:35,079 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 [2023-11-22 23:57:35,081 INFO L413 NwaCegarLoop]: 1494 mSDtfsCounter, 1432 mSDsluCounter, 8882 mSDsCounter, 0 mSdLazyCounter, 7145 mSolverCounterSat, 1154 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 10376 SdHoareTripleChecker+Invalid, 8302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1154 IncrementalHoareTripleChecker+Valid, 7145 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.5s IncrementalHoareTripleChecker+Time [2023-11-22 23:57:35,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 10376 Invalid, 8302 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1154 Valid, 7145 Invalid, 3 Unknown, 0 Unchecked, 22.5s Time] [2023-11-22 23:57:35,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5272 states. [2023-11-22 23:57:35,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5272 to 5019. [2023-11-22 23:57:35,230 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) [2023-11-22 23:57:35,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5019 states to 5019 states and 7373 transitions. [2023-11-22 23:57:35,243 INFO L78 Accepts]: Start accepts. Automaton has 5019 states and 7373 transitions. Word has length 208 [2023-11-22 23:57:35,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:57:35,244 INFO L495 AbstractCegarLoop]: Abstraction has 5019 states and 7373 transitions. [2023-11-22 23:57:35,244 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) [2023-11-22 23:57:35,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5019 states and 7373 transitions. [2023-11-22 23:57:35,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-11-22 23:57:35,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:57:35,258 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] [2023-11-22 23:57:35,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-22 23:57:35,258 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:57:35,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:57:35,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1258522047, now seen corresponding path program 1 times [2023-11-22 23:57:35,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:57:35,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387713500] [2023-11-22 23:57:35,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:57:35,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:57:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:57:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:57:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:57:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:57:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 23:57:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 23:57:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 23:57:36,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:36,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:57:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:36,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:57:36,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:36,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:36,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 23:57:36,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:37,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:37,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:37,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-22 23:57:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:37,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-22 23:57:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:37,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-11-22 23:57:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:37,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-22 23:57:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:37,188 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 53 proven. 50 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2023-11-22 23:57:37,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:57:37,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387713500] [2023-11-22 23:57:37,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387713500] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:57:37,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978750690] [2023-11-22 23:57:37,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:57:37,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:57:37,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:57:37,190 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) [2023-11-22 23:57:37,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-22 23:57:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:37,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 2042 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-22 23:57:37,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:57:38,108 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 [2023-11-22 23:57:38,641 INFO L349 Elim1Store]: treesize reduction 21, result has 46.2 percent of original size [2023-11-22 23:57:38,641 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 [2023-11-22 23:57:38,675 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 [2023-11-22 23:57:39,115 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 [2023-11-22 23:57:39,245 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 87 proven. 53 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2023-11-22 23:57:39,245 INFO L327 TraceCheckSpWp]: Computing backward predicates... Killed by 15