./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-linux-3.0-todo/usb_urb-drivers-net-usb-catc.ko.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-linux-3.0-todo/usb_urb-drivers-net-usb-catc.ko.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 70a2ace6fc40caa55e586c636402c0a5dfab1c8b77b7cf0fdf6a2120173a773c --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 21:07:43,873 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 21:07:43,917 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-22 21:07:43,920 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 21:07:43,921 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 21:07:43,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 21:07:43,935 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 21:07:43,935 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 21:07:43,935 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 21:07:43,936 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 21:07:43,936 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 21:07:43,936 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 21:07:43,937 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 21:07:43,937 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 21:07:43,937 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 21:07:43,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 21:07:43,938 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 21:07:43,938 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 21:07:43,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 21:07:43,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 21:07:43,939 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 21:07:43,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 21:07:43,940 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 21:07:43,940 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 21:07:43,941 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 21:07:43,941 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 21:07:43,941 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 21:07:43,942 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 21:07:43,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 21:07:43,942 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 21:07:43,943 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 21:07:43,943 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 21:07:43,943 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 21:07:43,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 21:07:43,944 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 21:07:43,944 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 21:07:43,944 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 21:07:43,945 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 21:07:43,945 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 21:07:43,945 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70a2ace6fc40caa55e586c636402c0a5dfab1c8b77b7cf0fdf6a2120173a773c Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-22 21:07:44,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 21:07:44,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 21:07:44,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 21:07:44,133 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 21:07:44,134 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 21:07:44,135 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0-todo/usb_urb-drivers-net-usb-catc.ko.cil.out.i [2023-11-22 21:07:45,251 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 21:07:45,647 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 21:07:45,647 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0-todo/usb_urb-drivers-net-usb-catc.ko.cil.out.i [2023-11-22 21:07:45,674 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b2579e4d/edbb374c61344c5a8d13391da4cad9ef/FLAG8143face8 [2023-11-22 21:07:45,686 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b2579e4d/edbb374c61344c5a8d13391da4cad9ef [2023-11-22 21:07:45,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 21:07:45,691 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 21:07:45,692 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 21:07:45,692 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 21:07:45,696 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 21:07:45,696 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:07:45" (1/1) ... [2023-11-22 21:07:45,697 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@226b99b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:07:45, skipping insertion in model container [2023-11-22 21:07:45,697 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:07:45" (1/1) ... [2023-11-22 21:07:45,771 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 21:07:46,591 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-linux-3.0-todo/usb_urb-drivers-net-usb-catc.ko.cil.out.i[199632,199645] [2023-11-22 21:07:46,625 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 21:07:46,667 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 21:07:46,729 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4718-4724] [2023-11-22 21:07:46,731 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [4731-4737] [2023-11-22 21:07:46,732 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "bts %2,%1\n\t" "sbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4744-4751] [2023-11-22 21:07:46,732 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "btr %2,%1\n\t" "sbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4758-4765] [2023-11-22 21:07:46,734 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "incl %0": "+m" (v->counter)); [4822-4828] [2023-11-22 21:07:46,735 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "decl %0": "+m" (v->counter)); [4835-4841] [2023-11-22 21:07:46,865 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-linux-3.0-todo/usb_urb-drivers-net-usb-catc.ko.cil.out.i[199632,199645] [2023-11-22 21:07:46,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 21:07:47,078 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 21:07:47,084 INFO L206 MainTranslator]: Completed translation [2023-11-22 21:07:47,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:07:47 WrapperNode [2023-11-22 21:07:47,085 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 21:07:47,085 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 21:07:47,085 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 21:07:47,086 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 21:07:47,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:07:47" (1/1) ... [2023-11-22 21:07:47,118 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:07:47" (1/1) ... [2023-11-22 21:07:47,169 INFO L138 Inliner]: procedures = 142, calls = 852, calls flagged for inlining = 59, calls inlined = 40, statements flattened = 1792 [2023-11-22 21:07:47,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 21:07:47,170 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 21:07:47,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 21:07:47,171 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 21:07:47,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:07:47" (1/1) ... [2023-11-22 21:07:47,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:07:47" (1/1) ... [2023-11-22 21:07:47,191 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:07:47" (1/1) ... [2023-11-22 21:07:47,192 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:07:47" (1/1) ... [2023-11-22 21:07:47,224 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:07:47" (1/1) ... [2023-11-22 21:07:47,232 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:07:47" (1/1) ... [2023-11-22 21:07:47,239 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:07:47" (1/1) ... [2023-11-22 21:07:47,246 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:07:47" (1/1) ... [2023-11-22 21:07:47,257 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 21:07:47,258 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 21:07:47,258 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 21:07:47,258 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 21:07:47,259 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:07:47" (1/1) ... [2023-11-22 21:07:47,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 21:07:47,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:07:47,288 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 21:07:47,306 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 21:07:47,326 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-22 21:07:47,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-22 21:07:47,326 INFO L130 BoogieDeclarations]: Found specification of procedure catc_tx_run [2023-11-22 21:07:47,327 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_tx_run [2023-11-22 21:07:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-22 21:07:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-22 21:07:47,328 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-22 21:07:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-22 21:07:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-22 21:07:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-22 21:07:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-22 21:07:47,329 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-22 21:07:47,329 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-22 21:07:47,329 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-22 21:07:47,329 INFO L130 BoogieDeclarations]: Found specification of procedure catc_ctrl_run [2023-11-22 21:07:47,329 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_ctrl_run [2023-11-22 21:07:47,329 INFO L130 BoogieDeclarations]: Found specification of procedure catc_get_drvinfo [2023-11-22 21:07:47,330 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_get_drvinfo [2023-11-22 21:07:47,330 INFO L130 BoogieDeclarations]: Found specification of procedure catc_ctrl_msg [2023-11-22 21:07:47,330 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_ctrl_msg [2023-11-22 21:07:47,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-22 21:07:47,330 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-22 21:07:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-22 21:07:47,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-22 21:07:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-22 21:07:47,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-22 21:07:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure catc_multicast [2023-11-22 21:07:47,331 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_multicast [2023-11-22 21:07:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-22 21:07:47,331 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-22 21:07:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-22 21:07:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-22 21:07:47,332 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-22 21:07:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2023-11-22 21:07:47,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2023-11-22 21:07:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-22 21:07:47,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-22 21:07:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-22 21:07:47,332 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-22 21:07:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-22 21:07:47,333 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-22 21:07:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-22 21:07:47,333 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-22 21:07:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-22 21:07:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2023-11-22 21:07:47,333 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2023-11-22 21:07:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-22 21:07:47,333 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-22 21:07:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-22 21:07:47,334 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-22 21:07:47,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 21:07:47,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 21:07:47,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-22 21:07:47,334 INFO L130 BoogieDeclarations]: Found specification of procedure catc_ctrl_async [2023-11-22 21:07:47,334 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_ctrl_async [2023-11-22 21:07:47,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-22 21:07:47,334 INFO L130 BoogieDeclarations]: Found specification of procedure catc_exit [2023-11-22 21:07:47,334 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_exit [2023-11-22 21:07:47,335 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-22 21:07:47,335 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-22 21:07:47,335 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-22 21:07:47,335 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-22 21:07:47,335 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-22 21:07:47,335 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-22 21:07:47,335 INFO L130 BoogieDeclarations]: Found specification of procedure catc_init [2023-11-22 21:07:47,335 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_init [2023-11-22 21:07:47,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2023-11-22 21:07:47,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2023-11-22 21:07:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 21:07:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-22 21:07:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-22 21:07:47,336 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-22 21:07:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-22 21:07:47,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-22 21:07:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-22 21:07:47,336 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-22 21:07:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-22 21:07:47,337 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-22 21:07:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-22 21:07:47,337 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-22 21:07:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-22 21:07:47,337 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-22 21:07:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2023-11-22 21:07:47,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2023-11-22 21:07:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-22 21:07:47,337 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-22 21:07:47,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-22 21:07:47,338 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-22 21:07:47,338 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-22 21:07:47,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-22 21:07:47,338 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-22 21:07:47,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 21:07:47,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 21:07:47,608 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 21:07:47,610 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 21:07:48,071 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2023-11-22 21:07:48,117 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-22 21:07:48,123 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-22 21:07:48,705 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##252: assume !false; [2023-11-22 21:07:48,705 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##251: assume false; [2023-11-22 21:07:48,705 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2023-11-22 21:07:48,705 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2023-11-22 21:07:48,728 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 21:07:48,816 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 21:07:48,816 INFO L309 CfgBuilder]: Removed 30 assume(true) statements. [2023-11-22 21:07:48,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:07:48 BoogieIcfgContainer [2023-11-22 21:07:48,816 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 21:07:48,818 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 21:07:48,818 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 21:07:48,821 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 21:07:48,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:07:45" (1/3) ... [2023-11-22 21:07:48,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36fe8636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:07:48, skipping insertion in model container [2023-11-22 21:07:48,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:07:47" (2/3) ... [2023-11-22 21:07:48,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36fe8636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:07:48, skipping insertion in model container [2023-11-22 21:07:48,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:07:48" (3/3) ... [2023-11-22 21:07:48,823 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-net-usb-catc.ko.cil.out.i [2023-11-22 21:07:48,835 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 21:07:48,835 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 21:07:48,874 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 21:07:48,879 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;@7c6eedf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 21:07:48,879 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 21:07:48,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 538 states, 366 states have (on average 1.5) internal successors, (549), 379 states have internal predecessors, (549), 133 states have call successors, (133), 38 states have call predecessors, (133), 37 states have return successors, (132), 131 states have call predecessors, (132), 132 states have call successors, (132) [2023-11-22 21:07:48,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-22 21:07:48,889 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:07:48,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:07:48,890 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:07:48,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:07:48,893 INFO L85 PathProgramCache]: Analyzing trace with hash 333834243, now seen corresponding path program 1 times [2023-11-22 21:07:48,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:07:48,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36465727] [2023-11-22 21:07:48,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:07:48,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:07:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:49,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:07:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:49,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 21:07:49,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:07:49,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36465727] [2023-11-22 21:07:49,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36465727] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:07:49,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:07:49,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 21:07:49,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600345861] [2023-11-22 21:07:49,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:07:49,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 21:07:49,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:07:49,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 21:07:49,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 21:07:49,581 INFO L87 Difference]: Start difference. First operand has 538 states, 366 states have (on average 1.5) internal successors, (549), 379 states have internal predecessors, (549), 133 states have call successors, (133), 38 states have call predecessors, (133), 37 states have return successors, (132), 131 states have call predecessors, (132), 132 states have call successors, (132) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 21:07:50,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:07:50,514 INFO L93 Difference]: Finished difference Result 1584 states and 2494 transitions. [2023-11-22 21:07:50,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 21:07:50,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-11-22 21:07:50,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:07:50,537 INFO L225 Difference]: With dead ends: 1584 [2023-11-22 21:07:50,538 INFO L226 Difference]: Without dead ends: 1050 [2023-11-22 21:07:50,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 21:07:50,554 INFO L413 NwaCegarLoop]: 892 mSDtfsCounter, 732 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-22 21:07:50,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 1554 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-22 21:07:50,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2023-11-22 21:07:50,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 1047. [2023-11-22 21:07:50,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 716 states have (on average 1.3100558659217878) internal successors, (938), 729 states have internal predecessors, (938), 259 states have call successors, (259), 72 states have call predecessors, (259), 71 states have return successors, (260), 254 states have call predecessors, (260), 256 states have call successors, (260) [2023-11-22 21:07:50,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1457 transitions. [2023-11-22 21:07:50,658 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1457 transitions. Word has length 12 [2023-11-22 21:07:50,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:07:50,659 INFO L495 AbstractCegarLoop]: Abstraction has 1047 states and 1457 transitions. [2023-11-22 21:07:50,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 21:07:50,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1457 transitions. [2023-11-22 21:07:50,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-22 21:07:50,660 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:07:50,660 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:07:50,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 21:07:50,661 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:07:50,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:07:50,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1758651914, now seen corresponding path program 1 times [2023-11-22 21:07:50,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:07:50,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842570397] [2023-11-22 21:07:50,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:07:50,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:07:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:51,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:07:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:51,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 21:07:51,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:07:51,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842570397] [2023-11-22 21:07:51,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842570397] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:07:51,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:07:51,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 21:07:51,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922943897] [2023-11-22 21:07:51,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:07:51,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 21:07:51,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:07:51,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 21:07:51,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 21:07:51,040 INFO L87 Difference]: Start difference. First operand 1047 states and 1457 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 21:07:51,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:07:51,456 INFO L93 Difference]: Finished difference Result 1049 states and 1458 transitions. [2023-11-22 21:07:51,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 21:07:51,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-11-22 21:07:51,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:07:51,461 INFO L225 Difference]: With dead ends: 1049 [2023-11-22 21:07:51,462 INFO L226 Difference]: Without dead ends: 1040 [2023-11-22 21:07:51,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 21:07:51,463 INFO L413 NwaCegarLoop]: 672 mSDtfsCounter, 729 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-22 21:07:51,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 672 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-22 21:07:51,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2023-11-22 21:07:51,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 1040. [2023-11-22 21:07:51,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 712 states have (on average 1.303370786516854) internal successors, (928), 723 states have internal predecessors, (928), 257 states have call successors, (257), 71 states have call predecessors, (257), 70 states have return successors, (259), 253 states have call predecessors, (259), 255 states have call successors, (259) [2023-11-22 21:07:51,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1444 transitions. [2023-11-22 21:07:51,525 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1444 transitions. Word has length 13 [2023-11-22 21:07:51,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:07:51,526 INFO L495 AbstractCegarLoop]: Abstraction has 1040 states and 1444 transitions. [2023-11-22 21:07:51,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 21:07:51,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1444 transitions. [2023-11-22 21:07:51,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-22 21:07:51,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:07:51,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:07:51,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-22 21:07:51,533 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:07:51,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:07:51,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1219222453, now seen corresponding path program 1 times [2023-11-22 21:07:51,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:07:51,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406429792] [2023-11-22 21:07:51,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:07:51,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:07:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:51,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:07:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:51,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-22 21:07:51,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:51,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:07:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:51,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 21:07:51,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:07:51,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406429792] [2023-11-22 21:07:51,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406429792] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:07:51,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:07:51,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-22 21:07:51,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809055876] [2023-11-22 21:07:51,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:07:51,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 21:07:51,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:07:51,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 21:07:51,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 21:07:51,983 INFO L87 Difference]: Start difference. First operand 1040 states and 1444 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-22 21:07:53,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:07:53,552 INFO L93 Difference]: Finished difference Result 2394 states and 3400 transitions. [2023-11-22 21:07:53,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 21:07:53,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2023-11-22 21:07:53,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:07:53,560 INFO L225 Difference]: With dead ends: 2394 [2023-11-22 21:07:53,560 INFO L226 Difference]: Without dead ends: 1363 [2023-11-22 21:07:53,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 21:07:53,568 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 465 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-22 21:07:53,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 1237 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-22 21:07:53,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2023-11-22 21:07:53,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1343. [2023-11-22 21:07:53,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1343 states, 929 states have (on average 1.3304628632938644) internal successors, (1236), 948 states have internal predecessors, (1236), 343 states have call successors, (343), 71 states have call predecessors, (343), 70 states have return successors, (345), 337 states have call predecessors, (345), 341 states have call successors, (345) [2023-11-22 21:07:53,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1343 states to 1343 states and 1924 transitions. [2023-11-22 21:07:53,626 INFO L78 Accepts]: Start accepts. Automaton has 1343 states and 1924 transitions. Word has length 39 [2023-11-22 21:07:53,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:07:53,626 INFO L495 AbstractCegarLoop]: Abstraction has 1343 states and 1924 transitions. [2023-11-22 21:07:53,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-22 21:07:53,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1343 states and 1924 transitions. [2023-11-22 21:07:53,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-22 21:07:53,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:07:53,629 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-22 21:07:53,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-22 21:07:53,629 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:07:53,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:07:53,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1635257517, now seen corresponding path program 1 times [2023-11-22 21:07:53,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:07:53,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300167296] [2023-11-22 21:07:53,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:07:53,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:07:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:53,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:07:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:53,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-22 21:07:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:53,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 21:07:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:53,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 21:07:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:53,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 21:07:53,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:53,978 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 21:07:53,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:07:53,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300167296] [2023-11-22 21:07:53,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300167296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:07:53,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:07:53,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 21:07:53,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951264305] [2023-11-22 21:07:53,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:07:53,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 21:07:53,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:07:53,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 21:07:53,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-22 21:07:53,980 INFO L87 Difference]: Start difference. First operand 1343 states and 1924 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-22 21:07:55,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:07:55,927 INFO L93 Difference]: Finished difference Result 2710 states and 3886 transitions. [2023-11-22 21:07:55,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 21:07:55,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 61 [2023-11-22 21:07:55,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:07:55,933 INFO L225 Difference]: With dead ends: 2710 [2023-11-22 21:07:55,934 INFO L226 Difference]: Without dead ends: 1364 [2023-11-22 21:07:55,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:07:55,938 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 197 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 1587 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-22 21:07:55,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 1587 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-22 21:07:55,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2023-11-22 21:07:56,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1340. [2023-11-22 21:07:56,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 927 states have (on average 1.3290183387270766) internal successors, (1232), 948 states have internal predecessors, (1232), 341 states have call successors, (341), 72 states have call predecessors, (341), 71 states have return successors, (341), 333 states have call predecessors, (341), 337 states have call successors, (341) [2023-11-22 21:07:56,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1914 transitions. [2023-11-22 21:07:56,031 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1914 transitions. Word has length 61 [2023-11-22 21:07:56,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:07:56,031 INFO L495 AbstractCegarLoop]: Abstraction has 1340 states and 1914 transitions. [2023-11-22 21:07:56,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-22 21:07:56,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1914 transitions. [2023-11-22 21:07:56,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-22 21:07:56,035 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:07:56,035 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-22 21:07:56,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-22 21:07:56,035 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:07:56,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:07:56,036 INFO L85 PathProgramCache]: Analyzing trace with hash -442569209, now seen corresponding path program 1 times [2023-11-22 21:07:56,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:07:56,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297721178] [2023-11-22 21:07:56,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:07:56,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:07:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:56,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:07:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:56,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-22 21:07:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:56,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:07:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:56,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-22 21:07:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:56,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-22 21:07:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:56,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-22 21:07:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:56,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-22 21:07:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:56,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:07:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:56,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:07:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:56,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:07:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:56,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-22 21:07:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:56,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:07:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:56,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:07:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:56,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-22 21:07:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:56,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:07:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:56,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:07:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:56,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 21:07:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:56,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:07:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:56,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:07:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:56,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-22 21:07:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:56,770 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-22 21:07:56,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:07:56,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297721178] [2023-11-22 21:07:56,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297721178] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:07:56,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146747340] [2023-11-22 21:07:56,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:07:56,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:07:56,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:07:56,784 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 21:07:56,788 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 21:07:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:07:57,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-22 21:07:57,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:07:57,681 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-11-22 21:07:57,681 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:07:57,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146747340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:07:57,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:07:57,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2023-11-22 21:07:57,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462177428] [2023-11-22 21:07:57,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:07:57,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 21:07:57,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:07:57,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 21:07:57,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-11-22 21:07:57,684 INFO L87 Difference]: Start difference. First operand 1340 states and 1914 transitions. Second operand has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-22 21:08:02,781 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 21:08:03,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:08:03,475 INFO L93 Difference]: Finished difference Result 1533 states and 2169 transitions. [2023-11-22 21:08:03,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 21:08:03,476 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 129 [2023-11-22 21:08:03,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:08:03,483 INFO L225 Difference]: With dead ends: 1533 [2023-11-22 21:08:03,485 INFO L226 Difference]: Without dead ends: 1473 [2023-11-22 21:08:03,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2023-11-22 21:08:03,487 INFO L413 NwaCegarLoop]: 675 mSDtfsCounter, 177 mSDsluCounter, 3686 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 4361 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-11-22 21:08:03,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 4361 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 901 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2023-11-22 21:08:03,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2023-11-22 21:08:03,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1460. [2023-11-22 21:08:03,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1004 states have (on average 1.3237051792828685) internal successors, (1329), 1031 states have internal predecessors, (1329), 370 states have call successors, (370), 88 states have call predecessors, (370), 85 states have return successors, (373), 355 states have call predecessors, (373), 366 states have call successors, (373) [2023-11-22 21:08:03,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 2072 transitions. [2023-11-22 21:08:03,545 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 2072 transitions. Word has length 129 [2023-11-22 21:08:03,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:08:03,546 INFO L495 AbstractCegarLoop]: Abstraction has 1460 states and 2072 transitions. [2023-11-22 21:08:03,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-22 21:08:03,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 2072 transitions. [2023-11-22 21:08:03,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-22 21:08:03,553 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:08:03,553 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-22 21:08:03,568 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 21:08:03,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:08:03,771 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:08:03,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:08:03,772 INFO L85 PathProgramCache]: Analyzing trace with hash 2136990591, now seen corresponding path program 1 times [2023-11-22 21:08:03,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:08:03,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139591008] [2023-11-22 21:08:03,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:08:03,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:08:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:08:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-22 21:08:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:08:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-22 21:08:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-22 21:08:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-22 21:08:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-22 21:08:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:08:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-22 21:08:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:04,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-22 21:08:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 21:08:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:04,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:04,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-22 21:08:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,356 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-22 21:08:04,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:08:04,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139591008] [2023-11-22 21:08:04,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139591008] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:08:04,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113432861] [2023-11-22 21:08:04,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:08:04,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:08:04,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:08:04,381 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 21:08:04,384 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 21:08:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:04,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 1775 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-22 21:08:05,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:08:05,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-22 21:08:05,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-22 21:08:05,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-22 21:08:05,199 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 29 treesize of output 13 [2023-11-22 21:08:05,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-22 21:08:05,320 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 29 treesize of output 13 [2023-11-22 21:08:05,467 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-22 21:08:05,467 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:08:05,582 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-11-22 21:08:05,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113432861] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:08:05,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:08:05,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 12 [2023-11-22 21:08:05,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307856312] [2023-11-22 21:08:05,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:08:05,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-22 21:08:05,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:08:05,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-22 21:08:05,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-22 21:08:05,584 INFO L87 Difference]: Start difference. First operand 1460 states and 2072 transitions. Second operand has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (31), 6 states have call predecessors, (31), 5 states have call successors, (31) [2023-11-22 21:08:12,765 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 21:08:14,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:08:14,119 INFO L93 Difference]: Finished difference Result 2564 states and 3635 transitions. [2023-11-22 21:08:14,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-22 21:08:14,119 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (31), 6 states have call predecessors, (31), 5 states have call successors, (31) Word has length 130 [2023-11-22 21:08:14,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:08:14,125 INFO L225 Difference]: With dead ends: 2564 [2023-11-22 21:08:14,126 INFO L226 Difference]: Without dead ends: 1157 [2023-11-22 21:08:14,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 290 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2023-11-22 21:08:14,131 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 359 mSDsluCounter, 3574 mSDsCounter, 0 mSdLazyCounter, 3681 mSolverCounterSat, 168 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 4076 SdHoareTripleChecker+Invalid, 3850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 3681 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-22 21:08:14,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 4076 Invalid, 3850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 3681 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2023-11-22 21:08:14,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2023-11-22 21:08:14,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1125. [2023-11-22 21:08:14,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 771 states have (on average 1.324254215304799) internal successors, (1021), 794 states have internal predecessors, (1021), 272 states have call successors, (272), 82 states have call predecessors, (272), 81 states have return successors, (280), 260 states have call predecessors, (280), 270 states have call successors, (280) [2023-11-22 21:08:14,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1573 transitions. [2023-11-22 21:08:14,233 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1573 transitions. Word has length 130 [2023-11-22 21:08:14,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:08:14,234 INFO L495 AbstractCegarLoop]: Abstraction has 1125 states and 1573 transitions. [2023-11-22 21:08:14,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (31), 6 states have call predecessors, (31), 5 states have call successors, (31) [2023-11-22 21:08:14,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1573 transitions. [2023-11-22 21:08:14,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-22 21:08:14,236 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:08:14,236 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-22 21:08:14,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-22 21:08:14,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-22 21:08:14,454 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:08:14,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:08:14,454 INFO L85 PathProgramCache]: Analyzing trace with hash 700076639, now seen corresponding path program 1 times [2023-11-22 21:08:14,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:08:14,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090694759] [2023-11-22 21:08:14,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:08:14,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:08:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:14,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:08:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:14,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-22 21:08:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:14,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:08:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:14,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-22 21:08:14,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:14,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-22 21:08:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:14,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-22 21:08:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:14,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-22 21:08:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:14,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:08:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:14,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:15,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:15,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-22 21:08:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:15,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:15,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:15,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-22 21:08:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:15,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:15,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:15,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 21:08:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:15,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:15,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:15,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-22 21:08:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:15,178 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-11-22 21:08:15,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:08:15,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090694759] [2023-11-22 21:08:15,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090694759] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:08:15,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199971388] [2023-11-22 21:08:15,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:08:15,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:08:15,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:08:15,180 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:08:15,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-22 21:08:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:15,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 1783 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-22 21:08:15,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:08:15,998 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-22 21:08:15,998 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:08:16,261 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-11-22 21:08:16,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199971388] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:08:16,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:08:16,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 7] total 16 [2023-11-22 21:08:16,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402958983] [2023-11-22 21:08:16,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:08:16,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-22 21:08:16,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:08:16,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-22 21:08:16,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2023-11-22 21:08:16,264 INFO L87 Difference]: Start difference. First operand 1125 states and 1573 transitions. Second operand has 16 states, 15 states have (on average 8.666666666666666) internal successors, (130), 12 states have internal predecessors, (130), 8 states have call successors, (45), 9 states have call predecessors, (45), 10 states have return successors, (44), 9 states have call predecessors, (44), 8 states have call successors, (44) [2023-11-22 21:08:25,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:08:25,467 INFO L93 Difference]: Finished difference Result 2200 states and 3103 transitions. [2023-11-22 21:08:25,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-22 21:08:25,468 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.666666666666666) internal successors, (130), 12 states have internal predecessors, (130), 8 states have call successors, (45), 9 states have call predecessors, (45), 10 states have return successors, (44), 9 states have call predecessors, (44), 8 states have call successors, (44) Word has length 130 [2023-11-22 21:08:25,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:08:25,473 INFO L225 Difference]: With dead ends: 2200 [2023-11-22 21:08:25,474 INFO L226 Difference]: Without dead ends: 1503 [2023-11-22 21:08:25,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 289 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=269, Invalid=853, Unknown=0, NotChecked=0, Total=1122 [2023-11-22 21:08:25,476 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 2178 mSDsluCounter, 4496 mSDsCounter, 0 mSdLazyCounter, 5320 mSolverCounterSat, 945 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2317 SdHoareTripleChecker+Valid, 5099 SdHoareTripleChecker+Invalid, 6265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 945 IncrementalHoareTripleChecker+Valid, 5320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2023-11-22 21:08:25,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2317 Valid, 5099 Invalid, 6265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [945 Valid, 5320 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2023-11-22 21:08:25,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2023-11-22 21:08:25,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1481. [2023-11-22 21:08:25,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1012 states have (on average 1.3231225296442688) internal successors, (1339), 1041 states have internal predecessors, (1339), 355 states have call successors, (355), 113 states have call predecessors, (355), 113 states have return successors, (385), 342 states have call predecessors, (385), 353 states have call successors, (385) [2023-11-22 21:08:25,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 2079 transitions. [2023-11-22 21:08:25,527 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 2079 transitions. Word has length 130 [2023-11-22 21:08:25,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:08:25,527 INFO L495 AbstractCegarLoop]: Abstraction has 1481 states and 2079 transitions. [2023-11-22 21:08:25,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.666666666666666) internal successors, (130), 12 states have internal predecessors, (130), 8 states have call successors, (45), 9 states have call predecessors, (45), 10 states have return successors, (44), 9 states have call predecessors, (44), 8 states have call successors, (44) [2023-11-22 21:08:25,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 2079 transitions. [2023-11-22 21:08:25,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-22 21:08:25,529 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:08:25,530 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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 21:08:25,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-22 21:08:25,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:08:25,744 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:08:25,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:08:25,744 INFO L85 PathProgramCache]: Analyzing trace with hash -30650678, now seen corresponding path program 1 times [2023-11-22 21:08:25,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:08:25,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165116834] [2023-11-22 21:08:25,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:08:25,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:08:25,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:08:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-22 21:08:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:08:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-22 21:08:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-22 21:08:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-22 21:08:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-22 21:08:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:08:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-22 21:08:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-22 21:08:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 21:08:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-22 21:08:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-22 21:08:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:26,439 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-11-22 21:08:26,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:08:26,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165116834] [2023-11-22 21:08:26,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165116834] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:08:26,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135397907] [2023-11-22 21:08:26,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:08:26,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:08:26,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:08:26,441 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:08:26,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-22 21:08:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:27,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 1816 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-22 21:08:27,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:08:27,210 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-11-22 21:08:27,210 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:08:27,346 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-11-22 21:08:27,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135397907] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-22 21:08:27,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-22 21:08:27,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10, 8] total 12 [2023-11-22 21:08:27,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767943640] [2023-11-22 21:08:27,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:08:27,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 21:08:27,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:08:27,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 21:08:27,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-22 21:08:27,349 INFO L87 Difference]: Start difference. First operand 1481 states and 2079 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 4 states have call successors, (17), 3 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 21:08:29,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:08:29,810 INFO L93 Difference]: Finished difference Result 1542 states and 2154 transitions. [2023-11-22 21:08:29,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 21:08:29,810 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 4 states have call successors, (17), 3 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 140 [2023-11-22 21:08:29,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:08:29,815 INFO L225 Difference]: With dead ends: 1542 [2023-11-22 21:08:29,815 INFO L226 Difference]: Without dead ends: 1481 [2023-11-22 21:08:29,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 314 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-11-22 21:08:29,816 INFO L413 NwaCegarLoop]: 666 mSDtfsCounter, 4 mSDsluCounter, 3151 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3817 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-22 21:08:29,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3817 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-22 21:08:29,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2023-11-22 21:08:29,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1481. [2023-11-22 21:08:29,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1012 states have (on average 1.3221343873517786) internal successors, (1338), 1041 states have internal predecessors, (1338), 355 states have call successors, (355), 113 states have call predecessors, (355), 113 states have return successors, (385), 342 states have call predecessors, (385), 353 states have call successors, (385) [2023-11-22 21:08:29,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 2078 transitions. [2023-11-22 21:08:29,861 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 2078 transitions. Word has length 140 [2023-11-22 21:08:29,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:08:29,861 INFO L495 AbstractCegarLoop]: Abstraction has 1481 states and 2078 transitions. [2023-11-22 21:08:29,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 4 states have call successors, (17), 3 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 21:08:29,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 2078 transitions. [2023-11-22 21:08:29,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-22 21:08:29,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:08:29,863 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1] [2023-11-22 21:08:29,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-22 21:08:30,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:08:30,078 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:08:30,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:08:30,079 INFO L85 PathProgramCache]: Analyzing trace with hash 299391609, now seen corresponding path program 1 times [2023-11-22 21:08:30,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:08:30,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806671420] [2023-11-22 21:08:30,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:08:30,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:08:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:08:31,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-22 21:08:31,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:08:31,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-22 21:08:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-22 21:08:31,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-22 21:08:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-22 21:08:31,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:08:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-22 21:08:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-22 21:08:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 21:08:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 21:08:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 21:08:31,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:31,336 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-11-22 21:08:31,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:08:31,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806671420] [2023-11-22 21:08:31,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806671420] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:08:31,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923597508] [2023-11-22 21:08:31,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:08:31,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:08:31,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:08:31,338 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:08:31,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-22 21:08:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:32,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 1821 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-22 21:08:32,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:08:32,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-22 21:08:32,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-22 21:08:32,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-22 21:08:32,157 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 29 treesize of output 13 [2023-11-22 21:08:32,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-22 21:08:32,241 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 29 treesize of output 13 [2023-11-22 21:08:32,249 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 9 treesize of output 3 [2023-11-22 21:08:32,309 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 62 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-22 21:08:32,309 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:08:32,405 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-11-22 21:08:32,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923597508] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:08:32,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:08:32,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 6] total 11 [2023-11-22 21:08:32,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005209175] [2023-11-22 21:08:32,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:08:32,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-22 21:08:32,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:08:32,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-22 21:08:32,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-22 21:08:32,408 INFO L87 Difference]: Start difference. First operand 1481 states and 2078 transitions. Second operand has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 7 states have internal predecessors, (87), 5 states have call successors, (31), 6 states have call predecessors, (31), 4 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-22 21:08:38,952 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 21:08:39,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:08:39,954 INFO L93 Difference]: Finished difference Result 2574 states and 3626 transitions. [2023-11-22 21:08:39,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-22 21:08:39,955 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 7 states have internal predecessors, (87), 5 states have call successors, (31), 6 states have call predecessors, (31), 4 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) Word has length 141 [2023-11-22 21:08:39,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:08:39,960 INFO L225 Difference]: With dead ends: 2574 [2023-11-22 21:08:39,961 INFO L226 Difference]: Without dead ends: 1500 [2023-11-22 21:08:39,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 323 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2023-11-22 21:08:39,965 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 552 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 2578 mSolverCounterSat, 344 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 2912 SdHoareTripleChecker+Invalid, 2923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 2578 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-11-22 21:08:39,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 2912 Invalid, 2923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 2578 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2023-11-22 21:08:39,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2023-11-22 21:08:40,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1481. [2023-11-22 21:08:40,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1012 states have (on average 1.3221343873517786) internal successors, (1338), 1041 states have internal predecessors, (1338), 355 states have call successors, (355), 113 states have call predecessors, (355), 113 states have return successors, (384), 342 states have call predecessors, (384), 353 states have call successors, (384) [2023-11-22 21:08:40,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 2077 transitions. [2023-11-22 21:08:40,017 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 2077 transitions. Word has length 141 [2023-11-22 21:08:40,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:08:40,017 INFO L495 AbstractCegarLoop]: Abstraction has 1481 states and 2077 transitions. [2023-11-22 21:08:40,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 7 states have internal predecessors, (87), 5 states have call successors, (31), 6 states have call predecessors, (31), 4 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-22 21:08:40,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 2077 transitions. [2023-11-22 21:08:40,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-22 21:08:40,020 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:08:40,020 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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 21:08:40,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-22 21:08:40,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:08:40,235 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:08:40,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:08:40,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1475381573, now seen corresponding path program 2 times [2023-11-22 21:08:40,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:08:40,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896158856] [2023-11-22 21:08:40,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:08:40,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:08:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:40,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:08:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:40,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-22 21:08:40,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:40,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:08:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:40,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-22 21:08:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:40,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-22 21:08:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:40,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-22 21:08:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:40,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-22 21:08:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:40,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:08:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:40,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:40,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:40,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-22 21:08:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:41,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:41,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:41,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:41,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-22 21:08:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:41,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:41,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:41,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 21:08:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:41,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:41,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:41,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:41,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 21:08:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:41,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 21:08:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:41,109 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 14 proven. 13 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-22 21:08:41,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:08:41,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896158856] [2023-11-22 21:08:41,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896158856] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:08:41,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120007313] [2023-11-22 21:08:41,110 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 21:08:41,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:08:41,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:08:41,111 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:08:41,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-22 21:08:41,752 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-22 21:08:41,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 21:08:41,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 1295 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-22 21:08:41,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:08:41,814 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-11-22 21:08:41,814 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:08:41,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120007313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:08:41,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:08:41,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2023-11-22 21:08:41,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010237381] [2023-11-22 21:08:41,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:08:41,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 21:08:41,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:08:41,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 21:08:41,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-11-22 21:08:41,817 INFO L87 Difference]: Start difference. First operand 1481 states and 2077 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-22 21:08:43,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:08:43,262 INFO L93 Difference]: Finished difference Result 2956 states and 4146 transitions. [2023-11-22 21:08:43,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 21:08:43,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 141 [2023-11-22 21:08:43,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:08:43,269 INFO L225 Difference]: With dead ends: 2956 [2023-11-22 21:08:43,269 INFO L226 Difference]: Without dead ends: 1481 [2023-11-22 21:08:43,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-11-22 21:08:43,273 INFO L413 NwaCegarLoop]: 667 mSDtfsCounter, 1 mSDsluCounter, 2665 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3332 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-22 21:08:43,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3332 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-22 21:08:43,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2023-11-22 21:08:43,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1481. [2023-11-22 21:08:43,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1012 states have (on average 1.3211462450592886) internal successors, (1337), 1041 states have internal predecessors, (1337), 355 states have call successors, (355), 113 states have call predecessors, (355), 113 states have return successors, (384), 342 states have call predecessors, (384), 353 states have call successors, (384) [2023-11-22 21:08:43,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 2076 transitions. [2023-11-22 21:08:43,362 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 2076 transitions. Word has length 141 [2023-11-22 21:08:43,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:08:43,362 INFO L495 AbstractCegarLoop]: Abstraction has 1481 states and 2076 transitions. [2023-11-22 21:08:43,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-22 21:08:43,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 2076 transitions. [2023-11-22 21:08:43,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-22 21:08:43,365 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:08:43,365 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1] [2023-11-22 21:08:43,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-22 21:08:43,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:08:43,581 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:08:43,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:08:43,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1558039645, now seen corresponding path program 1 times [2023-11-22 21:08:43,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:08:43,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693146639] [2023-11-22 21:08:43,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:08:43,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:08:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:43,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:08:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:43,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:43,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:08:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:43,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-22 21:08:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:43,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:08:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:43,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-22 21:08:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:43,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:08:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:43,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 21:08:43,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:43,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:08:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:43,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:43,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:44,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-22 21:08:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:44,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:44,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:44,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 21:08:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:44,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:44,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:44,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-22 21:08:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:44,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:44,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:44,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 21:08:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:44,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 21:08:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:44,120 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-22 21:08:44,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:08:44,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693146639] [2023-11-22 21:08:44,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693146639] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:08:44,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483186909] [2023-11-22 21:08:44,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:08:44,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:08:44,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:08:44,122 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:08:44,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-22 21:08:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:44,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 1864 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-22 21:08:44,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:08:45,032 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 2 proven. 29 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-22 21:08:45,033 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:08:45,401 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-11-22 21:08:45,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483186909] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:08:45,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:08:45,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 11] total 22 [2023-11-22 21:08:45,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608590752] [2023-11-22 21:08:45,402 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:08:45,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-22 21:08:45,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:08:45,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-22 21:08:45,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2023-11-22 21:08:45,403 INFO L87 Difference]: Start difference. First operand 1481 states and 2076 transitions. Second operand has 22 states, 21 states have (on average 7.761904761904762) internal successors, (163), 17 states have internal predecessors, (163), 10 states have call successors, (51), 12 states have call predecessors, (51), 13 states have return successors, (50), 11 states have call predecessors, (50), 10 states have call successors, (50) [2023-11-22 21:08:55,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:08:55,589 INFO L93 Difference]: Finished difference Result 2936 states and 4109 transitions. [2023-11-22 21:08:55,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-22 21:08:55,590 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.761904761904762) internal successors, (163), 17 states have internal predecessors, (163), 10 states have call successors, (51), 12 states have call predecessors, (51), 13 states have return successors, (50), 11 states have call predecessors, (50), 10 states have call successors, (50) Word has length 145 [2023-11-22 21:08:55,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:08:55,596 INFO L225 Difference]: With dead ends: 2936 [2023-11-22 21:08:55,596 INFO L226 Difference]: Without dead ends: 1885 [2023-11-22 21:08:55,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 316 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=415, Invalid=1565, Unknown=0, NotChecked=0, Total=1980 [2023-11-22 21:08:55,599 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 3120 mSDsluCounter, 4621 mSDsCounter, 0 mSdLazyCounter, 5488 mSolverCounterSat, 1351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3315 SdHoareTripleChecker+Valid, 5245 SdHoareTripleChecker+Invalid, 6839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1351 IncrementalHoareTripleChecker+Valid, 5488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-11-22 21:08:55,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3315 Valid, 5245 Invalid, 6839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1351 Valid, 5488 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2023-11-22 21:08:55,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1885 states. [2023-11-22 21:08:55,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1885 to 1844. [2023-11-22 21:08:55,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1257 states have (on average 1.3198090692124105) internal successors, (1659), 1295 states have internal predecessors, (1659), 438 states have call successors, (438), 147 states have call predecessors, (438), 148 states have return successors, (474), 421 states have call predecessors, (474), 436 states have call successors, (474) [2023-11-22 21:08:55,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2571 transitions. [2023-11-22 21:08:55,658 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2571 transitions. Word has length 145 [2023-11-22 21:08:55,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:08:55,658 INFO L495 AbstractCegarLoop]: Abstraction has 1844 states and 2571 transitions. [2023-11-22 21:08:55,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.761904761904762) internal successors, (163), 17 states have internal predecessors, (163), 10 states have call successors, (51), 12 states have call predecessors, (51), 13 states have return successors, (50), 11 states have call predecessors, (50), 10 states have call successors, (50) [2023-11-22 21:08:55,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2571 transitions. [2023-11-22 21:08:55,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-22 21:08:55,660 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:08:55,661 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2023-11-22 21:08:55,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-22 21:08:55,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:08:55,878 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:08:55,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:08:55,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1902539181, now seen corresponding path program 1 times [2023-11-22 21:08:55,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:08:55,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910411746] [2023-11-22 21:08:55,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:08:55,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:08:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:08:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:08:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-22 21:08:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:08:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-22 21:08:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:08:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 21:08:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:08:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:56,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-22 21:08:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:56,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 21:08:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-22 21:08:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:08:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:08:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 21:08:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 21:08:56,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 21:08:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:56,478 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-11-22 21:08:56,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:08:56,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910411746] [2023-11-22 21:08:56,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910411746] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:08:56,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479013107] [2023-11-22 21:08:56,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:08:56,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:08:56,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:08:56,480 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:08:56,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-22 21:08:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:08:57,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 1878 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-22 21:08:57,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:08:57,411 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 4 proven. 30 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-22 21:08:57,411 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:08:57,845 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 2 proven. 53 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-22 21:08:57,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479013107] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:08:57,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:08:57,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 15] total 26 [2023-11-22 21:08:57,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357488782] [2023-11-22 21:08:57,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:08:57,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-22 21:08:57,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:08:57,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-22 21:08:57,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=521, Unknown=0, NotChecked=0, Total=650 [2023-11-22 21:08:57,847 INFO L87 Difference]: Start difference. First operand 1844 states and 2571 transitions. Second operand has 26 states, 25 states have (on average 6.76) internal successors, (169), 22 states have internal predecessors, (169), 13 states have call successors, (54), 14 states have call predecessors, (54), 12 states have return successors, (51), 10 states have call predecessors, (51), 11 states have call successors, (51) [2023-11-22 21:09:10,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:09:10,218 INFO L93 Difference]: Finished difference Result 3392 states and 4722 transitions. [2023-11-22 21:09:10,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-11-22 21:09:10,219 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.76) internal successors, (169), 22 states have internal predecessors, (169), 13 states have call successors, (54), 14 states have call predecessors, (54), 12 states have return successors, (51), 10 states have call predecessors, (51), 11 states have call successors, (51) Word has length 155 [2023-11-22 21:09:10,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:09:10,230 INFO L225 Difference]: With dead ends: 3392 [2023-11-22 21:09:10,230 INFO L226 Difference]: Without dead ends: 3288 [2023-11-22 21:09:10,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 338 SyntacticMatches, 7 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 937 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=888, Invalid=3018, Unknown=0, NotChecked=0, Total=3906 [2023-11-22 21:09:10,232 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 4327 mSDsluCounter, 4912 mSDsCounter, 0 mSdLazyCounter, 7322 mSolverCounterSat, 1958 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4613 SdHoareTripleChecker+Valid, 5538 SdHoareTripleChecker+Invalid, 9280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1958 IncrementalHoareTripleChecker+Valid, 7322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-11-22 21:09:10,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4613 Valid, 5538 Invalid, 9280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1958 Valid, 7322 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2023-11-22 21:09:10,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3288 states. [2023-11-22 21:09:10,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3288 to 3229. [2023-11-22 21:09:10,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3229 states, 2203 states have (on average 1.321833862914208) internal successors, (2912), 2270 states have internal predecessors, (2912), 773 states have call successors, (773), 246 states have call predecessors, (773), 252 states have return successors, (844), 747 states have call predecessors, (844), 771 states have call successors, (844) [2023-11-22 21:09:10,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3229 states to 3229 states and 4529 transitions. [2023-11-22 21:09:10,332 INFO L78 Accepts]: Start accepts. Automaton has 3229 states and 4529 transitions. Word has length 155 [2023-11-22 21:09:10,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:09:10,332 INFO L495 AbstractCegarLoop]: Abstraction has 3229 states and 4529 transitions. [2023-11-22 21:09:10,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.76) internal successors, (169), 22 states have internal predecessors, (169), 13 states have call successors, (54), 14 states have call predecessors, (54), 12 states have return successors, (51), 10 states have call predecessors, (51), 11 states have call successors, (51) [2023-11-22 21:09:10,333 INFO L276 IsEmpty]: Start isEmpty. Operand 3229 states and 4529 transitions. [2023-11-22 21:09:10,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-22 21:09:10,335 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:09:10,335 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2023-11-22 21:09:10,362 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-22 21:09:10,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-22 21:09:10,565 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:09:10,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:09:10,566 INFO L85 PathProgramCache]: Analyzing trace with hash -737106287, now seen corresponding path program 1 times [2023-11-22 21:09:10,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:09:10,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49944843] [2023-11-22 21:09:10,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:09:10,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:09:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:09:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:09:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-22 21:09:11,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:09:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-22 21:09:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:09:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 21:09:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:09:11,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-22 21:09:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:11,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 21:09:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:11,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-22 21:09:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-22 21:09:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-22 21:09:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-22 21:09:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:11,383 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-11-22 21:09:11,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:09:11,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49944843] [2023-11-22 21:09:11,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49944843] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:09:11,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172017865] [2023-11-22 21:09:11,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:09:11,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:09:11,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:09:11,388 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:09:11,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-22 21:09:12,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:12,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 1875 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-22 21:09:12,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:09:12,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-22 21:09:12,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-22 21:09:12,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-22 21:09:12,237 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 29 treesize of output 13 [2023-11-22 21:09:12,247 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-22 21:09:12,247 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:09:12,337 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-11-22 21:09:12,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172017865] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:09:12,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:09:12,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 6] total 10 [2023-11-22 21:09:12,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720905212] [2023-11-22 21:09:12,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:09:12,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-22 21:09:12,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:09:12,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-22 21:09:12,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-22 21:09:12,340 INFO L87 Difference]: Start difference. First operand 3229 states and 4529 transitions. Second operand has 10 states, 10 states have (on average 8.8) internal successors, (88), 6 states have internal predecessors, (88), 5 states have call successors, (34), 6 states have call predecessors, (34), 4 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-22 21:09:18,219 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 21:09:19,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:09:19,136 INFO L93 Difference]: Finished difference Result 5087 states and 7096 transitions. [2023-11-22 21:09:19,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-22 21:09:19,137 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 6 states have internal predecessors, (88), 5 states have call successors, (34), 6 states have call predecessors, (34), 4 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 156 [2023-11-22 21:09:19,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:09:19,145 INFO L225 Difference]: With dead ends: 5087 [2023-11-22 21:09:19,145 INFO L226 Difference]: Without dead ends: 2236 [2023-11-22 21:09:19,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 359 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2023-11-22 21:09:19,151 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 742 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 2237 mSolverCounterSat, 520 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 2758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 2237 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-11-22 21:09:19,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 2630 Invalid, 2758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 2237 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2023-11-22 21:09:19,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2023-11-22 21:09:19,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 2209. [2023-11-22 21:09:19,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2209 states, 1505 states have (on average 1.3182724252491695) internal successors, (1984), 1551 states have internal predecessors, (1984), 519 states have call successors, (519), 181 states have call predecessors, (519), 184 states have return successors, (558), 500 states have call predecessors, (558), 517 states have call successors, (558) [2023-11-22 21:09:19,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3061 transitions. [2023-11-22 21:09:19,221 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3061 transitions. Word has length 156 [2023-11-22 21:09:19,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:09:19,221 INFO L495 AbstractCegarLoop]: Abstraction has 2209 states and 3061 transitions. [2023-11-22 21:09:19,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 6 states have internal predecessors, (88), 5 states have call successors, (34), 6 states have call predecessors, (34), 4 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-22 21:09:19,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3061 transitions. [2023-11-22 21:09:19,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-22 21:09:19,224 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:09:19,224 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2023-11-22 21:09:19,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-22 21:09:19,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-22 21:09:19,440 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:09:19,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:09:19,440 INFO L85 PathProgramCache]: Analyzing trace with hash -740715689, now seen corresponding path program 1 times [2023-11-22 21:09:19,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:09:19,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329897301] [2023-11-22 21:09:19,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:09:19,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:09:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:09:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:09:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-22 21:09:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:09:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-22 21:09:19,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:09:19,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 21:09:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:09:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:19,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-22 21:09:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 21:09:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-22 21:09:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-22 21:09:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:19,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-22 21:09:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:20,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-22 21:09:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:20,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-22 21:09:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:20,013 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2023-11-22 21:09:20,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:09:20,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329897301] [2023-11-22 21:09:20,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329897301] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:09:20,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813386625] [2023-11-22 21:09:20,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:09:20,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:09:20,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:09:20,028 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:09:20,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-22 21:09:20,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:20,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 1907 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-22 21:09:20,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:09:20,995 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-22 21:09:20,995 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:09:21,114 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2023-11-22 21:09:21,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813386625] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-22 21:09:21,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-22 21:09:21,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10, 8] total 12 [2023-11-22 21:09:21,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900587416] [2023-11-22 21:09:21,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:09:21,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 21:09:21,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:09:21,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 21:09:21,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-22 21:09:21,117 INFO L87 Difference]: Start difference. First operand 2209 states and 3061 transitions. Second operand has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-22 21:09:22,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:09:22,924 INFO L93 Difference]: Finished difference Result 2268 states and 3113 transitions. [2023-11-22 21:09:22,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 21:09:22,925 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 166 [2023-11-22 21:09:22,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:09:22,935 INFO L225 Difference]: With dead ends: 2268 [2023-11-22 21:09:22,935 INFO L226 Difference]: Without dead ends: 2179 [2023-11-22 21:09:22,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 368 SyntacticMatches, 7 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-11-22 21:09:22,936 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 5 mSDsluCounter, 2520 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3176 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-22 21:09:22,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 3176 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-22 21:09:22,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2179 states. [2023-11-22 21:09:23,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2179 to 2179. [2023-11-22 21:09:23,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2179 states, 1490 states have (on average 1.3208053691275168) internal successors, (1968), 1536 states have internal predecessors, (1968), 504 states have call successors, (504), 181 states have call predecessors, (504), 184 states have return successors, (533), 485 states have call predecessors, (533), 502 states have call successors, (533) [2023-11-22 21:09:23,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2179 states to 2179 states and 3005 transitions. [2023-11-22 21:09:23,042 INFO L78 Accepts]: Start accepts. Automaton has 2179 states and 3005 transitions. Word has length 166 [2023-11-22 21:09:23,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:09:23,042 INFO L495 AbstractCegarLoop]: Abstraction has 2179 states and 3005 transitions. [2023-11-22 21:09:23,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-22 21:09:23,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2179 states and 3005 transitions. [2023-11-22 21:09:23,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-11-22 21:09:23,046 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:09:23,046 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:23,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-22 21:09:23,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-22 21:09:23,261 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:09:23,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:09:23,261 INFO L85 PathProgramCache]: Analyzing trace with hash 524942939, now seen corresponding path program 1 times [2023-11-22 21:09:23,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:09:23,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515349928] [2023-11-22 21:09:23,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:09:23,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:09:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:09:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:09:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-22 21:09:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:09:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-22 21:09:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:09:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 21:09:23,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:09:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-22 21:09:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 21:09:23,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-22 21:09:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 21:09:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:09:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 21:09:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 21:09:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 21:09:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-22 21:09:23,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 21:09:23,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-11-22 21:09:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-11-22 21:09:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 21:09:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-11-22 21:09:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-11-22 21:09:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-11-22 21:09:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:23,788 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2023-11-22 21:09:23,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:09:23,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515349928] [2023-11-22 21:09:23,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515349928] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:09:23,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639890801] [2023-11-22 21:09:23,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:09:23,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:09:23,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:09:23,792 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:09:23,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-22 21:09:24,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:24,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 2767 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-22 21:09:24,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:09:24,752 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-22 21:09:24,752 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:09:24,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639890801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:09:24,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:09:24,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2023-11-22 21:09:24,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667651166] [2023-11-22 21:09:24,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:09:24,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 21:09:24,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:09:24,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 21:09:24,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:09:24,754 INFO L87 Difference]: Start difference. First operand 2179 states and 3005 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-22 21:09:25,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:09:25,569 INFO L93 Difference]: Finished difference Result 3927 states and 5465 transitions. [2023-11-22 21:09:25,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 21:09:25,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 242 [2023-11-22 21:09:25,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:09:25,586 INFO L225 Difference]: With dead ends: 3927 [2023-11-22 21:09:25,586 INFO L226 Difference]: Without dead ends: 2186 [2023-11-22 21:09:25,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 312 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:09:25,592 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 6 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-22 21:09:25,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1283 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-22 21:09:25,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2186 states. [2023-11-22 21:09:25,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2186 to 2182. [2023-11-22 21:09:25,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 1493 states have (on average 1.3201607501674482) internal successors, (1971), 1539 states have internal predecessors, (1971), 504 states have call successors, (504), 181 states have call predecessors, (504), 184 states have return successors, (533), 485 states have call predecessors, (533), 502 states have call successors, (533) [2023-11-22 21:09:25,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 3008 transitions. [2023-11-22 21:09:25,661 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 3008 transitions. Word has length 242 [2023-11-22 21:09:25,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:09:25,661 INFO L495 AbstractCegarLoop]: Abstraction has 2182 states and 3008 transitions. [2023-11-22 21:09:25,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-22 21:09:25,661 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 3008 transitions. [2023-11-22 21:09:25,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-11-22 21:09:25,664 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:09:25,664 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:25,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-22 21:09:25,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-22 21:09:25,883 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:09:25,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:09:25,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1444852521, now seen corresponding path program 1 times [2023-11-22 21:09:25,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:09:25,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060830140] [2023-11-22 21:09:25,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:09:25,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:09:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:09:26,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:09:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-22 21:09:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:09:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-22 21:09:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:09:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 21:09:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:09:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:26,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-22 21:09:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 21:09:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-22 21:09:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 21:09:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:09:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 21:09:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 21:09:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 21:09:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-22 21:09:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 21:09:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-22 21:09:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 21:09:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:26,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-11-22 21:09:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-22 21:09:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-11-22 21:09:26,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-22 21:09:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:26,962 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2023-11-22 21:09:26,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:09:26,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060830140] [2023-11-22 21:09:26,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060830140] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:09:26,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:09:26,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-22 21:09:26,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265227389] [2023-11-22 21:09:26,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:09:26,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-22 21:09:26,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:09:26,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-22 21:09:26,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-22 21:09:26,964 INFO L87 Difference]: Start difference. First operand 2182 states and 3008 transitions. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (29), 5 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-11-22 21:09:31,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:09:31,003 INFO L93 Difference]: Finished difference Result 3981 states and 5533 transitions. [2023-11-22 21:09:31,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-22 21:09:31,003 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (29), 5 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 245 [2023-11-22 21:09:31,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:09:31,010 INFO L225 Difference]: With dead ends: 3981 [2023-11-22 21:09:31,010 INFO L226 Difference]: Without dead ends: 2226 [2023-11-22 21:09:31,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-22 21:09:31,014 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 472 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 2118 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 2347 SdHoareTripleChecker+Invalid, 2519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 2118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-22 21:09:31,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 2347 Invalid, 2519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 2118 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-22 21:09:31,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states. [2023-11-22 21:09:31,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 2182. [2023-11-22 21:09:31,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 1493 states have (on average 1.3221701272605493) internal successors, (1974), 1541 states have internal predecessors, (1974), 504 states have call successors, (504), 181 states have call predecessors, (504), 184 states have return successors, (535), 483 states have call predecessors, (535), 502 states have call successors, (535) [2023-11-22 21:09:31,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 3013 transitions. [2023-11-22 21:09:31,117 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 3013 transitions. Word has length 245 [2023-11-22 21:09:31,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:09:31,117 INFO L495 AbstractCegarLoop]: Abstraction has 2182 states and 3013 transitions. [2023-11-22 21:09:31,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (29), 5 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-11-22 21:09:31,117 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 3013 transitions. [2023-11-22 21:09:31,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-11-22 21:09:31,120 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:09:31,120 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:31,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-22 21:09:31,120 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:09:31,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:09:31,121 INFO L85 PathProgramCache]: Analyzing trace with hash -477180309, now seen corresponding path program 1 times [2023-11-22 21:09:31,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:09:31,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212546810] [2023-11-22 21:09:31,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:09:31,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:09:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:09:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:31,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:09:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-22 21:09:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:09:31,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-22 21:09:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:09:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 21:09:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:09:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-22 21:09:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 21:09:31,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:31,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-22 21:09:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 21:09:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:09:31,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 21:09:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 21:09:31,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 21:09:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-22 21:09:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 21:09:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-22 21:09:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 21:09:31,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-11-22 21:09:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-22 21:09:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-11-22 21:09:31,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-22 21:09:31,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:31,625 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2023-11-22 21:09:31,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:09:31,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212546810] [2023-11-22 21:09:31,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212546810] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:09:31,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:09:31,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 21:09:31,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439393521] [2023-11-22 21:09:31,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:09:31,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 21:09:31,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:09:31,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 21:09:31,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:09:31,628 INFO L87 Difference]: Start difference. First operand 2182 states and 3013 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 4 states have internal predecessors, (102), 4 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-22 21:09:34,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:09:34,708 INFO L93 Difference]: Finished difference Result 2242 states and 3117 transitions. [2023-11-22 21:09:34,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 21:09:34,709 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 4 states have internal predecessors, (102), 4 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 245 [2023-11-22 21:09:34,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:09:34,714 INFO L225 Difference]: With dead ends: 2242 [2023-11-22 21:09:34,714 INFO L226 Difference]: Without dead ends: 2234 [2023-11-22 21:09:34,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-11-22 21:09:34,715 INFO L413 NwaCegarLoop]: 642 mSDtfsCounter, 1192 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 1743 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-22 21:09:34,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 1743 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 1217 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-22 21:09:34,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2023-11-22 21:09:34,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 2182. [2023-11-22 21:09:34,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 1493 states have (on average 1.3215003348961822) internal successors, (1973), 1541 states have internal predecessors, (1973), 504 states have call successors, (504), 181 states have call predecessors, (504), 184 states have return successors, (535), 483 states have call predecessors, (535), 502 states have call successors, (535) [2023-11-22 21:09:34,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 3012 transitions. [2023-11-22 21:09:34,788 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 3012 transitions. Word has length 245 [2023-11-22 21:09:34,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:09:34,788 INFO L495 AbstractCegarLoop]: Abstraction has 2182 states and 3012 transitions. [2023-11-22 21:09:34,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 4 states have internal predecessors, (102), 4 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-22 21:09:34,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 3012 transitions. [2023-11-22 21:09:34,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2023-11-22 21:09:34,790 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:09:34,791 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:34,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-22 21:09:34,791 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:09:34,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:09:34,791 INFO L85 PathProgramCache]: Analyzing trace with hash 970336850, now seen corresponding path program 1 times [2023-11-22 21:09:34,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:09:34,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102858761] [2023-11-22 21:09:34,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:09:34,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:09:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:09:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:09:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-22 21:09:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:09:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-22 21:09:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:09:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 21:09:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:09:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:35,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-22 21:09:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:35,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 21:09:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:35,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-22 21:09:35,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:35,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 21:09:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:09:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 21:09:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 21:09:35,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 21:09:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-22 21:09:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 21:09:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-22 21:09:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 21:09:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-11-22 21:09:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-22 21:09:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-11-22 21:09:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-11-22 21:09:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:35,382 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2023-11-22 21:09:35,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:09:35,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102858761] [2023-11-22 21:09:35,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102858761] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:09:35,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938553598] [2023-11-22 21:09:35,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:09:35,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:09:35,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:09:35,383 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:09:35,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-22 21:09:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:36,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 2789 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 21:09:36,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:09:36,498 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2023-11-22 21:09:36,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:09:36,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938553598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:09:36,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:09:36,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 8 [2023-11-22 21:09:36,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575865590] [2023-11-22 21:09:36,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:09:36,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 21:09:36,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:09:36,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 21:09:36,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-22 21:09:36,500 INFO L87 Difference]: Start difference. First operand 2182 states and 3012 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-11-22 21:09:37,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:09:37,596 INFO L93 Difference]: Finished difference Result 3924 states and 5427 transitions. [2023-11-22 21:09:37,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 21:09:37,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 249 [2023-11-22 21:09:37,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:09:37,601 INFO L225 Difference]: With dead ends: 3924 [2023-11-22 21:09:37,602 INFO L226 Difference]: Without dead ends: 2186 [2023-11-22 21:09:37,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-22 21:09:37,605 INFO L413 NwaCegarLoop]: 867 mSDtfsCounter, 398 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-22 21:09:37,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 1445 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-22 21:09:37,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2186 states. [2023-11-22 21:09:37,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2186 to 2182. [2023-11-22 21:09:37,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 1493 states have (on average 1.3201607501674482) internal successors, (1971), 1541 states have internal predecessors, (1971), 504 states have call successors, (504), 181 states have call predecessors, (504), 184 states have return successors, (535), 483 states have call predecessors, (535), 502 states have call successors, (535) [2023-11-22 21:09:37,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 3010 transitions. [2023-11-22 21:09:37,680 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 3010 transitions. Word has length 249 [2023-11-22 21:09:37,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:09:37,680 INFO L495 AbstractCegarLoop]: Abstraction has 2182 states and 3010 transitions. [2023-11-22 21:09:37,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-11-22 21:09:37,681 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 3010 transitions. [2023-11-22 21:09:37,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-11-22 21:09:37,683 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:09:37,683 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:37,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-22 21:09:37,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-22 21:09:37,902 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:09:37,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:09:37,902 INFO L85 PathProgramCache]: Analyzing trace with hash -16939329, now seen corresponding path program 1 times [2023-11-22 21:09:37,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:09:37,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686932686] [2023-11-22 21:09:37,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:09:37,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:09:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:09:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:09:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-22 21:09:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:09:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-22 21:09:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:09:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 21:09:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:09:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-22 21:09:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 21:09:38,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-22 21:09:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-22 21:09:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 21:09:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:09:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 21:09:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 21:09:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 21:09:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-22 21:09:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 21:09:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-22 21:09:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 21:09:38,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:09:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-11-22 21:09:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-22 21:09:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-11-22 21:09:38,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-22 21:09:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-22 21:09:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-11-22 21:09:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-11-22 21:09:38,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-11-22 21:09:38,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:38,570 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-11-22 21:09:38,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:09:38,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686932686] [2023-11-22 21:09:38,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686932686] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:09:38,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122551420] [2023-11-22 21:09:38,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:09:38,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:09:38,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:09:38,572 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:09:38,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-22 21:09:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:09:39,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 2895 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-22 21:09:39,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:09:39,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 16 [2023-11-22 21:09:39,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-22 21:09:39,960 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2023-11-22 21:09:39,961 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:09:39,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122551420] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:09:39,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:09:39,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2023-11-22 21:09:39,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036555469] [2023-11-22 21:09:39,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:09:39,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 21:09:39,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:09:39,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 21:09:39,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-22 21:09:39,964 INFO L87 Difference]: Start difference. First operand 2182 states and 3010 transitions. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2023-11-22 21:09:42,109 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 21:09:44,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:09:46,652 WARN L539 Checker$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 21:09:48,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:09:50,725 WARN L539 Checker$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 21:09:52,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:09:54,915 WARN L539 Checker$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 21:09:57,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:09:59,331 WARN L539 Checker$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 21:10:01,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:10:03,371 WARN L539 Checker$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 21:10:05,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:10:07,400 WARN L539 Checker$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 21:10:09,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:10:11,422 WARN L539 Checker$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 21:10:13,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:10:15,451 WARN L539 Checker$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 21:10:17,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:10:19,504 WARN L539 Checker$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 21:10:21,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:10:23,577 WARN L539 Checker$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 21:10:25,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:10:27,620 WARN L539 Checker$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 21:10:29,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:10:31,667 WARN L539 Checker$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 21:10:33,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:10:35,680 WARN L539 Checker$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 21:10:37,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:10:39,748 WARN L539 Checker$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 21:10:41,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:10:43,760 WARN L539 Checker$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 21:10:45,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:10:47,789 WARN L539 Checker$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 21:10:49,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:10:51,833 WARN L539 Checker$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 21:10:53,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:10:55,852 WARN L539 Checker$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 21:10:57,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:10:59,874 WARN L539 Checker$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 21:11:01,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:11:03,895 WARN L539 Checker$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 21:11:05,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:11:07,915 WARN L539 Checker$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 21:11:09,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:11:11,929 WARN L539 Checker$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 21:11:13,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:11:15,963 WARN L539 Checker$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 21:11:17,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:11:20,000 WARN L539 Checker$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 21:11:22,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:11:24,034 WARN L539 Checker$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 21:11:26,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:11:28,048 WARN L539 Checker$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 21:11:30,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:11:32,145 WARN L539 Checker$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 21:11:34,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:11:36,842 WARN L539 Checker$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 21:11:39,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:11:41,042 WARN L539 Checker$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 21:11:43,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:11:45,059 WARN L539 Checker$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 21:11:47,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:11:49,146 WARN L539 Checker$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 21:11:51,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:11:53,172 WARN L539 Checker$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 21:11:55,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:11:57,198 WARN L539 Checker$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 21:11:59,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:12:01,286 WARN L539 Checker$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 21:12:03,312 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] Killed by 15