./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i --full-output --preprocessor.use.memory.slicer false --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fba957c5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.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 7f108eec0e6f75d7c7724c96156fb3bec5ecbcd0f2a8def1b3ebffa34d9deb6c --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-dev-fba957c-m [2023-11-23 10:19:20,137 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 10:19:20,210 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 10:19:20,213 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 10:19:20,214 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 10:19:20,230 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 10:19:20,231 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 10:19:20,231 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 10:19:20,232 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 10:19:20,232 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 10:19:20,232 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 10:19:20,233 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 10:19:20,233 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 10:19:20,233 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 10:19:20,233 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 10:19:20,234 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 10:19:20,234 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 10:19:20,234 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 10:19:20,235 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 10:19:20,235 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 10:19:20,235 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 10:19:20,235 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 10:19:20,236 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 10:19:20,236 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 10:19:20,236 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 10:19:20,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 10:19:20,237 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 10:19:20,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 10:19:20,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 10:19:20,237 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 10:19:20,237 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 10:19:20,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 10:19:20,238 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 10:19:20,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 10:19:20,238 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 10:19:20,238 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 10:19:20,239 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 10:19:20,239 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 10:19:20,239 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 10:19:20,239 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f108eec0e6f75d7c7724c96156fb3bec5ecbcd0f2a8def1b3ebffa34d9deb6c Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-23 10:19:20,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 10:19:20,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 10:19:20,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 10:19:20,499 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 10:19:20,500 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 10:19:20,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i [2023-11-23 10:19:21,610 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 10:19:21,941 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 10:19:21,942 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i [2023-11-23 10:19:21,984 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20f57c67d/d4224f4b31604aa8bb358b33fb2bef6f/FLAG221897f4a [2023-11-23 10:19:21,997 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20f57c67d/d4224f4b31604aa8bb358b33fb2bef6f [2023-11-23 10:19:22,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 10:19:22,003 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 10:19:22,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 10:19:22,005 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 10:19:22,009 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 10:19:22,009 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:19:21" (1/1) ... [2023-11-23 10:19:22,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71516052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:19:22, skipping insertion in model container [2023-11-23 10:19:22,010 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:19:21" (1/1) ... [2023-11-23 10:19:22,089 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 10:19:22,785 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i[114617,114630] [2023-11-23 10:19:23,254 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 10:19:23,293 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 10:19:23,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [3691] [2023-11-23 10:19:23,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3805] [2023-11-23 10:19:23,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [3812] [2023-11-23 10:19:23,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [3829-3830] [2023-11-23 10:19:23,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3833-3834] [2023-11-23 10:19:23,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3837-3838] [2023-11-23 10:19:23,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3841-3842] [2023-11-23 10:19:23,369 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i[114617,114630] [2023-11-23 10:19:23,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [5887] [2023-11-23 10:19:23,515 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 10:19:23,575 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 10:19:23,575 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 10:19:23,580 INFO L206 MainTranslator]: Completed translation [2023-11-23 10:19:23,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:19:23 WrapperNode [2023-11-23 10:19:23,581 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 10:19:23,582 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 10:19:23,582 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 10:19:23,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 10:19:23,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:19:23" (1/1) ... [2023-11-23 10:19:23,650 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:19:23" (1/1) ... [2023-11-23 10:19:23,816 INFO L138 Inliner]: procedures = 222, calls = 1643, calls flagged for inlining = 101, calls inlined = 96, statements flattened = 4396 [2023-11-23 10:19:23,816 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 10:19:23,817 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 10:19:23,817 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 10:19:23,817 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 10:19:23,825 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:19:23" (1/1) ... [2023-11-23 10:19:23,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:19:23" (1/1) ... [2023-11-23 10:19:23,851 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:19:23" (1/1) ... [2023-11-23 10:19:23,851 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:19:23" (1/1) ... [2023-11-23 10:19:23,914 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:19:23" (1/1) ... [2023-11-23 10:19:23,925 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:19:23" (1/1) ... [2023-11-23 10:19:23,944 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:19:23" (1/1) ... [2023-11-23 10:19:23,959 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:19:23" (1/1) ... [2023-11-23 10:19:23,983 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 10:19:23,984 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 10:19:23,984 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 10:19:23,984 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 10:19:23,985 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:19:23" (1/1) ... [2023-11-23 10:19:23,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 10:19:23,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:19:24,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 10:19:24,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 10:19:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-23 10:19:24,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-23 10:19:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_18 [2023-11-23 10:19:24,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_18 [2023-11-23 10:19:24,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 10:19:24,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 10:19:24,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 10:19:24,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 10:19:24,089 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2023-11-23 10:19:24,089 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2023-11-23 10:19:24,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-11-23 10:19:24,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-11-23 10:19:24,090 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_handle_firmware_update [2023-11-23 10:19:24,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_handle_firmware_update [2023-11-23 10:19:24,090 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2023-11-23 10:19:24,091 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2023-11-23 10:19:24,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 10:19:24,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 10:19:24,091 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-23 10:19:24,091 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-23 10:19:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-11-23 10:19:24,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-11-23 10:19:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-23 10:19:24,092 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-23 10:19:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_get_info [2023-11-23 10:19:24,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_get_info [2023-11-23 10:19:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2023-11-23 10:19:24,093 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2023-11-23 10:19:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 10:19:24,093 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 10:19:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 10:19:24,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 10:19:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 10:19:24,094 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 10:19:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 10:19:24,094 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 10:19:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2023-11-23 10:19:24,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2023-11-23 10:19:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 10:19:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-11-23 10:19:24,094 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-11-23 10:19:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 10:19:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure ihex_next_binrec [2023-11-23 10:19:24,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ihex_next_binrec [2023-11-23 10:19:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-11-23 10:19:24,095 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-11-23 10:19:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_buffers_free [2023-11-23 10:19:24,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_buffers_free [2023-11-23 10:19:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 10:19:24,096 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2023-11-23 10:19:24,096 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2023-11-23 10:19:24,096 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-23 10:19:24,096 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2023-11-23 10:19:24,096 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2023-11-23 10:19:24,097 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_attribute_show [2023-11-23 10:19:24,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_attribute_show [2023-11-23 10:19:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2023-11-23 10:19:24,098 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2023-11-23 10:19:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 10:19:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 10:19:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 10:19:24,098 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 10:19:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 10:19:24,099 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 10:19:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 10:19:24,099 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 10:19:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-23 10:19:24,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-23 10:19:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 10:19:24,100 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 10:19:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure __ims_pcu_execute_command [2023-11-23 10:19:24,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __ims_pcu_execute_command [2023-11-23 10:19:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-11-23 10:19:24,100 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-11-23 10:19:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure __ims_pcu_execute_bl_command [2023-11-23 10:19:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __ims_pcu_execute_bl_command [2023-11-23 10:19:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-11-23 10:19:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-11-23 10:19:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 10:19:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 10:19:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 10:19:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2023-11-23 10:19:24,102 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2023-11-23 10:19:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 10:19:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 10:19:24,102 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 10:19:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_8 [2023-11-23 10:19:24,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_8 [2023-11-23 10:19:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2023-11-23 10:19:24,103 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2023-11-23 10:19:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 10:19:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-23 10:19:24,103 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-23 10:19:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-23 10:19:24,103 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-23 10:19:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_destroy_backlight [2023-11-23 10:19:24,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_destroy_backlight [2023-11-23 10:19:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_attribute_store [2023-11-23 10:19:24,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_attribute_store [2023-11-23 10:19:24,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 10:19:24,104 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 10:19:24,104 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-23 10:19:24,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-23 10:19:24,104 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_resume [2023-11-23 10:19:24,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_resume [2023-11-23 10:19:24,105 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-23 10:19:24,105 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-23 10:19:24,105 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_destroy_buttons [2023-11-23 10:19:24,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_destroy_buttons [2023-11-23 10:19:24,105 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 10:19:24,105 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 10:19:24,106 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_start_io [2023-11-23 10:19:24,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_start_io [2023-11-23 10:19:24,106 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2023-11-23 10:19:24,106 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2023-11-23 10:19:24,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 10:19:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2023-11-23 10:19:24,107 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2023-11-23 10:19:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-23 10:19:24,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-23 10:19:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-11-23 10:19:24,107 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-11-23 10:19:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_send_cmd_chunk [2023-11-23 10:19:24,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_send_cmd_chunk [2023-11-23 10:19:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoint [2023-11-23 10:19:24,108 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoint [2023-11-23 10:19:24,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 10:19:24,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 10:19:24,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 10:19:24,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_2 [2023-11-23 10:19:24,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_2 [2023-11-23 10:19:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2023-11-23 10:19:24,109 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2023-11-23 10:19:24,110 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_line_setup [2023-11-23 10:19:24,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_line_setup [2023-11-23 10:19:24,110 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-11-23 10:19:24,110 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-11-23 10:19:24,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 10:19:24,110 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_stop_io [2023-11-23 10:19:24,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_stop_io [2023-11-23 10:19:24,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 10:19:24,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 10:19:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_byte_needs_escape [2023-11-23 10:19:24,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_byte_needs_escape [2023-11-23 10:19:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 10:19:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2023-11-23 10:19:24,114 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2023-11-23 10:19:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 10:19:24,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 10:19:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2023-11-23 10:19:24,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2023-11-23 10:19:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2023-11-23 10:19:24,119 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2023-11-23 10:19:24,119 INFO L130 BoogieDeclarations]: Found specification of procedure scnprintf [2023-11-23 10:19:24,119 INFO L138 BoogieDeclarations]: Found implementation of procedure scnprintf [2023-11-23 10:19:24,120 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-23 10:19:24,120 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-23 10:19:24,120 INFO L130 BoogieDeclarations]: Found specification of procedure ihex_validate_fw [2023-11-23 10:19:24,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ihex_validate_fw [2023-11-23 10:19:24,120 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_irq [2023-11-23 10:19:24,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_irq [2023-11-23 10:19:24,120 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2023-11-23 10:19:24,120 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2023-11-23 10:19:24,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-11-23 10:19:24,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-11-23 10:19:24,121 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-23 10:19:24,121 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-23 10:19:24,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 10:19:24,121 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_disconnect [2023-11-23 10:19:24,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_disconnect [2023-11-23 10:19:24,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 10:19:24,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 10:19:24,613 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 10:19:24,616 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 10:19:24,751 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 10:19:25,799 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2023-11-23 10:19:26,773 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 10:19:26,938 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 10:19:26,938 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-23 10:19:26,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:19:26 BoogieIcfgContainer [2023-11-23 10:19:26,939 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 10:19:26,943 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 10:19:26,943 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 10:19:26,945 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 10:19:26,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:19:21" (1/3) ... [2023-11-23 10:19:26,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301f677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:19:26, skipping insertion in model container [2023-11-23 10:19:26,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:19:23" (2/3) ... [2023-11-23 10:19:26,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301f677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:19:26, skipping insertion in model container [2023-11-23 10:19:26,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:19:26" (3/3) ... [2023-11-23 10:19:26,949 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i [2023-11-23 10:19:26,961 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 10:19:26,961 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 10:19:27,024 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 10:19:27,030 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;@492ecf9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 10:19:27,030 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 10:19:27,039 INFO L276 IsEmpty]: Start isEmpty. Operand has 1225 states, 802 states have (on average 1.3977556109725686) internal successors, (1121), 834 states have internal predecessors, (1121), 346 states have call successors, (346), 77 states have call predecessors, (346), 75 states have return successors, (331), 330 states have call predecessors, (331), 331 states have call successors, (331) [2023-11-23 10:19:27,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-23 10:19:27,063 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:19:27,064 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:19:27,064 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:19:27,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:19:27,070 INFO L85 PathProgramCache]: Analyzing trace with hash 6230701, now seen corresponding path program 1 times [2023-11-23 10:19:27,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:19:27,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368009799] [2023-11-23 10:19:27,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:19:27,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:19:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:19:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:19:27,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:19:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:19:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:19:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:19:27,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:19:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:19:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 10:19:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:19:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 10:19:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 10:19:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 10:19:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 10:19:27,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:19:27,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:19:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:19:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 10:19:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 10:19:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 10:19:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 10:19:27,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:19:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 10:19:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 10:19:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 10:19:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:27,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-23 10:19:27,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:19:27,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368009799] [2023-11-23 10:19:27,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368009799] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:19:27,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:19:27,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 10:19:27,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295697435] [2023-11-23 10:19:27,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:19:27,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 10:19:27,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:19:27,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 10:19:27,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 10:19:27,892 INFO L87 Difference]: Start difference. First operand has 1225 states, 802 states have (on average 1.3977556109725686) internal successors, (1121), 834 states have internal predecessors, (1121), 346 states have call successors, (346), 77 states have call predecessors, (346), 75 states have return successors, (331), 330 states have call predecessors, (331), 331 states have call successors, (331) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-11-23 10:19:32,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:19:32,158 INFO L93 Difference]: Finished difference Result 3812 states and 5807 transitions. [2023-11-23 10:19:32,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 10:19:32,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 168 [2023-11-23 10:19:32,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:19:32,193 INFO L225 Difference]: With dead ends: 3812 [2023-11-23 10:19:32,193 INFO L226 Difference]: Without dead ends: 2553 [2023-11-23 10:19:32,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 10:19:32,208 INFO L413 NwaCegarLoop]: 1489 mSDtfsCounter, 2343 mSDsluCounter, 2705 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 1702 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2578 SdHoareTripleChecker+Valid, 4194 SdHoareTripleChecker+Invalid, 3709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1702 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-23 10:19:32,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2578 Valid, 4194 Invalid, 3709 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1702 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-23 10:19:32,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2553 states. [2023-11-23 10:19:32,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2553 to 2319. [2023-11-23 10:19:32,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2319 states, 1551 states have (on average 1.3765312701482915) internal successors, (2135), 1577 states have internal predecessors, (2135), 619 states have call successors, (619), 149 states have call predecessors, (619), 148 states have return successors, (614), 612 states have call predecessors, (614), 614 states have call successors, (614) [2023-11-23 10:19:32,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2319 states to 2319 states and 3368 transitions. [2023-11-23 10:19:32,446 INFO L78 Accepts]: Start accepts. Automaton has 2319 states and 3368 transitions. Word has length 168 [2023-11-23 10:19:32,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:19:32,449 INFO L495 AbstractCegarLoop]: Abstraction has 2319 states and 3368 transitions. [2023-11-23 10:19:32,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-11-23 10:19:32,450 INFO L276 IsEmpty]: Start isEmpty. Operand 2319 states and 3368 transitions. [2023-11-23 10:19:32,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-11-23 10:19:32,457 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:19:32,457 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:19:32,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 10:19:32,458 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:19:32,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:19:32,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1813259005, now seen corresponding path program 1 times [2023-11-23 10:19:32,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:19:32,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390921652] [2023-11-23 10:19:32,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:19:32,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:19:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:32,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:19:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:32,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:19:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:32,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:19:32,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:32,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:19:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:32,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:19:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:32,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:19:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:32,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:19:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:32,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:19:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:33,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 10:19:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:33,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:19:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:33,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 10:19:33,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:33,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 10:19:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:33,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 10:19:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:33,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 10:19:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:33,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:19:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:33,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:19:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:33,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:19:33,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:33,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 10:19:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:33,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 10:19:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:33,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 10:19:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:33,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 10:19:33,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:33,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:19:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:33,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 10:19:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:33,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 10:19:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:33,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 10:19:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:33,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-23 10:19:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:33,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-11-23 10:19:33,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:19:33,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390921652] [2023-11-23 10:19:33,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390921652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:19:33,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:19:33,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 10:19:33,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751829853] [2023-11-23 10:19:33,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:19:33,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 10:19:33,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:19:33,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 10:19:33,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 10:19:33,158 INFO L87 Difference]: Start difference. First operand 2319 states and 3368 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-23 10:19:37,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:19:37,145 INFO L93 Difference]: Finished difference Result 7322 states and 11066 transitions. [2023-11-23 10:19:37,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 10:19:37,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 177 [2023-11-23 10:19:37,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:19:37,167 INFO L225 Difference]: With dead ends: 7322 [2023-11-23 10:19:37,168 INFO L226 Difference]: Without dead ends: 5054 [2023-11-23 10:19:37,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 10:19:37,175 INFO L413 NwaCegarLoop]: 1541 mSDtfsCounter, 2388 mSDsluCounter, 2642 mSDsCounter, 0 mSdLazyCounter, 2040 mSolverCounterSat, 1660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2618 SdHoareTripleChecker+Valid, 4183 SdHoareTripleChecker+Invalid, 3700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1660 IncrementalHoareTripleChecker+Valid, 2040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-23 10:19:37,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2618 Valid, 4183 Invalid, 3700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1660 Valid, 2040 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-23 10:19:37,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5054 states. [2023-11-23 10:19:37,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5054 to 4634. [2023-11-23 10:19:37,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4634 states, 3107 states have (on average 1.3765690376569037) internal successors, (4277), 3155 states have internal predecessors, (4277), 1218 states have call successors, (1218), 297 states have call predecessors, (1218), 308 states have return successors, (1285), 1219 states have call predecessors, (1285), 1213 states have call successors, (1285) [2023-11-23 10:19:37,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4634 states to 4634 states and 6780 transitions. [2023-11-23 10:19:37,363 INFO L78 Accepts]: Start accepts. Automaton has 4634 states and 6780 transitions. Word has length 177 [2023-11-23 10:19:37,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:19:37,363 INFO L495 AbstractCegarLoop]: Abstraction has 4634 states and 6780 transitions. [2023-11-23 10:19:37,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-23 10:19:37,364 INFO L276 IsEmpty]: Start isEmpty. Operand 4634 states and 6780 transitions. [2023-11-23 10:19:37,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-11-23 10:19:37,367 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:19:37,367 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:19:37,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 10:19:37,367 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:19:37,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:19:37,368 INFO L85 PathProgramCache]: Analyzing trace with hash 375773542, now seen corresponding path program 1 times [2023-11-23 10:19:37,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:19:37,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784115298] [2023-11-23 10:19:37,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:19:37,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:19:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:19:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:19:37,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:19:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:19:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:19:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:19:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:19:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:19:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 10:19:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:19:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 10:19:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 10:19:37,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 10:19:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 10:19:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:19:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:19:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:19:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 10:19:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 10:19:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 10:19:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 10:19:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:19:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 10:19:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 10:19:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 10:19:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-23 10:19:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:37,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-11-23 10:19:37,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:19:37,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784115298] [2023-11-23 10:19:37,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784115298] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:19:37,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:19:37,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 10:19:37,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809136172] [2023-11-23 10:19:37,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:19:37,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 10:19:37,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:19:37,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 10:19:37,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 10:19:37,947 INFO L87 Difference]: Start difference. First operand 4634 states and 6780 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-23 10:19:40,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:19:40,557 INFO L93 Difference]: Finished difference Result 5046 states and 7670 transitions. [2023-11-23 10:19:40,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 10:19:40,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 178 [2023-11-23 10:19:40,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:19:40,583 INFO L225 Difference]: With dead ends: 5046 [2023-11-23 10:19:40,583 INFO L226 Difference]: Without dead ends: 5043 [2023-11-23 10:19:40,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 10:19:40,588 INFO L413 NwaCegarLoop]: 1450 mSDtfsCounter, 1935 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2172 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 2338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-23 10:19:40,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2172 Valid, 2868 Invalid, 2338 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [918 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-23 10:19:40,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5043 states. [2023-11-23 10:19:40,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5043 to 4633. [2023-11-23 10:19:40,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4633 states, 3107 states have (on average 1.3762471837785646) internal successors, (4276), 3154 states have internal predecessors, (4276), 1217 states have call successors, (1217), 297 states have call predecessors, (1217), 308 states have return successors, (1285), 1219 states have call predecessors, (1285), 1213 states have call successors, (1285) [2023-11-23 10:19:40,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4633 states to 4633 states and 6778 transitions. [2023-11-23 10:19:40,862 INFO L78 Accepts]: Start accepts. Automaton has 4633 states and 6778 transitions. Word has length 178 [2023-11-23 10:19:40,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:19:40,863 INFO L495 AbstractCegarLoop]: Abstraction has 4633 states and 6778 transitions. [2023-11-23 10:19:40,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-23 10:19:40,863 INFO L276 IsEmpty]: Start isEmpty. Operand 4633 states and 6778 transitions. [2023-11-23 10:19:40,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-23 10:19:40,866 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:19:40,866 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:19:40,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 10:19:40,866 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:19:40,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:19:40,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1236597984, now seen corresponding path program 1 times [2023-11-23 10:19:40,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:19:40,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513928709] [2023-11-23 10:19:40,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:19:40,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:19:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:19:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:19:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:19:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:19:41,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:19:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:19:41,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:19:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:19:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 10:19:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:19:41,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 10:19:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 10:19:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 10:19:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 10:19:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:19:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:19:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:19:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 10:19:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 10:19:41,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 10:19:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 10:19:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:19:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 10:19:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 10:19:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 10:19:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-23 10:19:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:41,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-11-23 10:19:41,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:19:41,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513928709] [2023-11-23 10:19:41,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513928709] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:19:41,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:19:41,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 10:19:41,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447811073] [2023-11-23 10:19:41,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:19:41,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 10:19:41,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:19:41,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 10:19:41,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 10:19:41,161 INFO L87 Difference]: Start difference. First operand 4633 states and 6778 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-23 10:19:43,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:19:43,737 INFO L93 Difference]: Finished difference Result 5045 states and 7668 transitions. [2023-11-23 10:19:43,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 10:19:43,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 179 [2023-11-23 10:19:43,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:19:43,758 INFO L225 Difference]: With dead ends: 5045 [2023-11-23 10:19:43,759 INFO L226 Difference]: Without dead ends: 5042 [2023-11-23 10:19:43,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 10:19:43,764 INFO L413 NwaCegarLoop]: 1450 mSDtfsCounter, 1928 mSDsluCounter, 1416 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 913 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2167 SdHoareTripleChecker+Valid, 2866 SdHoareTripleChecker+Invalid, 2329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 913 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-23 10:19:43,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2167 Valid, 2866 Invalid, 2329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [913 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-23 10:19:43,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5042 states. [2023-11-23 10:19:43,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5042 to 4632. [2023-11-23 10:19:44,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 3107 states have (on average 1.3759253299002252) internal successors, (4275), 3153 states have internal predecessors, (4275), 1216 states have call successors, (1216), 297 states have call predecessors, (1216), 308 states have return successors, (1285), 1219 states have call predecessors, (1285), 1213 states have call successors, (1285) [2023-11-23 10:19:44,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 6776 transitions. [2023-11-23 10:19:44,019 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 6776 transitions. Word has length 179 [2023-11-23 10:19:44,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:19:44,020 INFO L495 AbstractCegarLoop]: Abstraction has 4632 states and 6776 transitions. [2023-11-23 10:19:44,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-23 10:19:44,021 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 6776 transitions. [2023-11-23 10:19:44,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-11-23 10:19:44,023 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:19:44,024 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:19:44,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 10:19:44,024 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:19:44,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:19:44,024 INFO L85 PathProgramCache]: Analyzing trace with hash 319497129, now seen corresponding path program 1 times [2023-11-23 10:19:44,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:19:44,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315315143] [2023-11-23 10:19:44,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:19:44,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:19:44,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:19:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:19:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:19:44,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:19:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:19:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:19:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:19:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:19:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 10:19:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:19:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 10:19:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 10:19:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 10:19:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 10:19:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:19:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:19:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:19:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 10:19:44,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 10:19:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 10:19:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 10:19:44,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:19:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 10:19:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 10:19:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 10:19:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-23 10:19:44,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:44,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-11-23 10:19:44,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:19:44,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315315143] [2023-11-23 10:19:44,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315315143] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:19:44,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:19:44,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 10:19:44,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523409335] [2023-11-23 10:19:44,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:19:44,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 10:19:44,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:19:44,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 10:19:44,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 10:19:44,332 INFO L87 Difference]: Start difference. First operand 4632 states and 6776 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-23 10:19:46,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:19:46,890 INFO L93 Difference]: Finished difference Result 5044 states and 7666 transitions. [2023-11-23 10:19:46,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 10:19:46,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 180 [2023-11-23 10:19:46,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:19:46,910 INFO L225 Difference]: With dead ends: 5044 [2023-11-23 10:19:46,910 INFO L226 Difference]: Without dead ends: 5041 [2023-11-23 10:19:46,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 10:19:46,912 INFO L413 NwaCegarLoop]: 1448 mSDtfsCounter, 1925 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 915 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2163 SdHoareTripleChecker+Valid, 2866 SdHoareTripleChecker+Invalid, 2333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 915 IncrementalHoareTripleChecker+Valid, 1418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-23 10:19:46,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2163 Valid, 2866 Invalid, 2333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [915 Valid, 1418 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-23 10:19:46,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5041 states. [2023-11-23 10:19:47,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5041 to 4631. [2023-11-23 10:19:47,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4631 states, 3107 states have (on average 1.375603476021886) internal successors, (4274), 3152 states have internal predecessors, (4274), 1215 states have call successors, (1215), 297 states have call predecessors, (1215), 308 states have return successors, (1285), 1219 states have call predecessors, (1285), 1213 states have call successors, (1285) [2023-11-23 10:19:47,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4631 states to 4631 states and 6774 transitions. [2023-11-23 10:19:47,098 INFO L78 Accepts]: Start accepts. Automaton has 4631 states and 6774 transitions. Word has length 180 [2023-11-23 10:19:47,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:19:47,099 INFO L495 AbstractCegarLoop]: Abstraction has 4631 states and 6774 transitions. [2023-11-23 10:19:47,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-23 10:19:47,099 INFO L276 IsEmpty]: Start isEmpty. Operand 4631 states and 6774 transitions. [2023-11-23 10:19:47,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-11-23 10:19:47,101 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:19:47,101 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:19:47,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 10:19:47,102 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:19:47,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:19:47,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1313810243, now seen corresponding path program 1 times [2023-11-23 10:19:47,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:19:47,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678845585] [2023-11-23 10:19:47,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:19:47,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:19:47,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:19:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:19:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:19:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:19:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:19:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:19:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:19:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:19:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 10:19:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:19:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 10:19:47,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 10:19:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 10:19:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 10:19:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:19:47,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:19:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:19:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 10:19:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 10:19:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 10:19:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 10:19:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:19:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 10:19:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 10:19:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 10:19:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-23 10:19:47,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:47,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-11-23 10:19:47,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:19:47,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678845585] [2023-11-23 10:19:47,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678845585] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:19:47,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:19:47,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 10:19:47,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427620638] [2023-11-23 10:19:47,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:19:47,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 10:19:47,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:19:47,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 10:19:47,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 10:19:47,358 INFO L87 Difference]: Start difference. First operand 4631 states and 6774 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-23 10:19:50,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:19:50,059 INFO L93 Difference]: Finished difference Result 5043 states and 7664 transitions. [2023-11-23 10:19:50,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 10:19:50,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 181 [2023-11-23 10:19:50,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:19:50,101 INFO L225 Difference]: With dead ends: 5043 [2023-11-23 10:19:50,101 INFO L226 Difference]: Without dead ends: 5034 [2023-11-23 10:19:50,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 10:19:50,106 INFO L413 NwaCegarLoop]: 1454 mSDtfsCounter, 1917 mSDsluCounter, 1416 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 905 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2155 SdHoareTripleChecker+Valid, 2870 SdHoareTripleChecker+Invalid, 2320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 905 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-23 10:19:50,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2155 Valid, 2870 Invalid, 2320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [905 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-23 10:19:50,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5034 states. [2023-11-23 10:19:50,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5034 to 4624. [2023-11-23 10:19:50,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4624 states, 3101 states have (on average 1.3750403095775556) internal successors, (4264), 3145 states have internal predecessors, (4264), 1214 states have call successors, (1214), 297 states have call predecessors, (1214), 308 states have return successors, (1285), 1219 states have call predecessors, (1285), 1213 states have call successors, (1285) [2023-11-23 10:19:50,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4624 states to 4624 states and 6763 transitions. [2023-11-23 10:19:50,292 INFO L78 Accepts]: Start accepts. Automaton has 4624 states and 6763 transitions. Word has length 181 [2023-11-23 10:19:50,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:19:50,295 INFO L495 AbstractCegarLoop]: Abstraction has 4624 states and 6763 transitions. [2023-11-23 10:19:50,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-23 10:19:50,295 INFO L276 IsEmpty]: Start isEmpty. Operand 4624 states and 6763 transitions. [2023-11-23 10:19:50,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-11-23 10:19:50,302 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:19:50,302 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:19:50,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 10:19:50,302 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:19:50,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:19:50,303 INFO L85 PathProgramCache]: Analyzing trace with hash -451580818, now seen corresponding path program 1 times [2023-11-23 10:19:50,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:19:50,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728362085] [2023-11-23 10:19:50,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:19:50,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:19:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:19:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:19:50,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:19:50,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:19:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:19:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:19:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:19:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:19:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 10:19:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:19:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 10:19:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 10:19:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 10:19:50,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 10:19:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:19:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:19:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:19:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 10:19:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 10:19:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 10:19:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 10:19:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:19:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 10:19:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 10:19:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 10:19:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-23 10:19:50,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-23 10:19:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:19:50,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:19:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-23 10:19:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-11-23 10:19:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-11-23 10:19:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-23 10:19:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-11-23 10:19:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-11-23 10:19:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:19:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-11-23 10:19:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:19:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:19:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-11-23 10:19:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-23 10:19:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-11-23 10:19:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-11-23 10:19:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:50,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1239 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1230 trivial. 0 not checked. [2023-11-23 10:19:50,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:19:50,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728362085] [2023-11-23 10:19:50,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728362085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:19:50,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:19:50,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 10:19:50,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581006779] [2023-11-23 10:19:50,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:19:50,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 10:19:50,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:19:50,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 10:19:50,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-23 10:19:50,702 INFO L87 Difference]: Start difference. First operand 4624 states and 6763 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (44), 9 states have call predecessors, (44), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2023-11-23 10:19:56,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:19:56,557 INFO L93 Difference]: Finished difference Result 11788 states and 17713 transitions. [2023-11-23 10:19:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 10:19:56,561 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (44), 9 states have call predecessors, (44), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 285 [2023-11-23 10:19:56,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:19:56,595 INFO L225 Difference]: With dead ends: 11788 [2023-11-23 10:19:56,596 INFO L226 Difference]: Without dead ends: 7215 [2023-11-23 10:19:56,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2023-11-23 10:19:56,612 INFO L413 NwaCegarLoop]: 1111 mSDtfsCounter, 2394 mSDsluCounter, 3831 mSDsCounter, 0 mSdLazyCounter, 4503 mSolverCounterSat, 2406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2576 SdHoareTripleChecker+Valid, 4942 SdHoareTripleChecker+Invalid, 6909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2406 IncrementalHoareTripleChecker+Valid, 4503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-23 10:19:56,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2576 Valid, 4942 Invalid, 6909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2406 Valid, 4503 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-11-23 10:19:56,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7215 states. [2023-11-23 10:19:56,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7215 to 6460. [2023-11-23 10:19:56,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6460 states, 4400 states have (on average 1.3806818181818181) internal successors, (6075), 4452 states have internal predecessors, (6075), 1621 states have call successors, (1621), 411 states have call predecessors, (1621), 438 states have return successors, (1752), 1634 states have call predecessors, (1752), 1620 states have call successors, (1752) [2023-11-23 10:19:56,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6460 states to 6460 states and 9448 transitions. [2023-11-23 10:19:56,943 INFO L78 Accepts]: Start accepts. Automaton has 6460 states and 9448 transitions. Word has length 285 [2023-11-23 10:19:56,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:19:56,943 INFO L495 AbstractCegarLoop]: Abstraction has 6460 states and 9448 transitions. [2023-11-23 10:19:56,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (44), 9 states have call predecessors, (44), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2023-11-23 10:19:56,944 INFO L276 IsEmpty]: Start isEmpty. Operand 6460 states and 9448 transitions. [2023-11-23 10:19:56,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2023-11-23 10:19:56,954 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:19:56,955 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:19:56,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 10:19:56,955 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:19:56,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:19:56,955 INFO L85 PathProgramCache]: Analyzing trace with hash 37151570, now seen corresponding path program 1 times [2023-11-23 10:19:56,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:19:56,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022983130] [2023-11-23 10:19:56,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:19:56,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:19:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:19:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:19:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:19:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:19:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:19:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:19:57,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:19:57,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:19:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 10:19:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:19:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 10:19:57,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 10:19:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 10:19:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 10:19:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:19:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:19:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:19:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 10:19:57,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 10:19:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 10:19:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 10:19:57,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:19:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 10:19:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 10:19:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 10:19:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-23 10:19:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-23 10:19:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-23 10:19:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:19:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:19:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-23 10:19:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-11-23 10:19:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-11-23 10:19:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-23 10:19:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-11-23 10:19:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-11-23 10:19:57,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:19:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-23 10:19:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:19:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:19:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-11-23 10:19:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-11-23 10:19:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-23 10:19:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-11-23 10:19:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:19:57,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1367 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1339 trivial. 0 not checked. [2023-11-23 10:19:57,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:19:57,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022983130] [2023-11-23 10:19:57,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022983130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:19:57,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:19:57,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 10:19:57,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000984614] [2023-11-23 10:19:57,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:19:57,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 10:19:57,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:19:57,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 10:19:57,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-23 10:19:57,301 INFO L87 Difference]: Start difference. First operand 6460 states and 9448 transitions. Second operand has 10 states, 10 states have (on average 12.4) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (45), 9 states have call predecessors, (45), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2023-11-23 10:20:01,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:20:01,706 INFO L93 Difference]: Finished difference Result 10563 states and 15719 transitions. [2023-11-23 10:20:01,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 10:20:01,706 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (45), 9 states have call predecessors, (45), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 308 [2023-11-23 10:20:01,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:20:01,720 INFO L225 Difference]: With dead ends: 10563 [2023-11-23 10:20:01,720 INFO L226 Difference]: Without dead ends: 4163 [2023-11-23 10:20:01,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2023-11-23 10:20:01,737 INFO L413 NwaCegarLoop]: 1103 mSDtfsCounter, 1849 mSDsluCounter, 3304 mSDsCounter, 0 mSdLazyCounter, 3739 mSolverCounterSat, 2516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 4407 SdHoareTripleChecker+Invalid, 6255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2516 IncrementalHoareTripleChecker+Valid, 3739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-23 10:20:01,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1943 Valid, 4407 Invalid, 6255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2516 Valid, 3739 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-23 10:20:01,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4163 states. [2023-11-23 10:20:02,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4163 to 3749. [2023-11-23 10:20:02,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3749 states, 2559 states have (on average 1.378272762797968) internal successors, (3527), 2585 states have internal predecessors, (3527), 937 states have call successors, (937), 239 states have call predecessors, (937), 252 states have return successors, (1002), 943 states have call predecessors, (1002), 936 states have call successors, (1002) [2023-11-23 10:20:02,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3749 states to 3749 states and 5466 transitions. [2023-11-23 10:20:02,033 INFO L78 Accepts]: Start accepts. Automaton has 3749 states and 5466 transitions. Word has length 308 [2023-11-23 10:20:02,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:20:02,034 INFO L495 AbstractCegarLoop]: Abstraction has 3749 states and 5466 transitions. [2023-11-23 10:20:02,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (45), 9 states have call predecessors, (45), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2023-11-23 10:20:02,034 INFO L276 IsEmpty]: Start isEmpty. Operand 3749 states and 5466 transitions. [2023-11-23 10:20:02,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-11-23 10:20:02,043 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:20:02,044 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:20:02,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 10:20:02,044 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:20:02,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:20:02,044 INFO L85 PathProgramCache]: Analyzing trace with hash -256090483, now seen corresponding path program 1 times [2023-11-23 10:20:02,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:20:02,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863875194] [2023-11-23 10:20:02,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:20:02,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:20:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:20:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:20:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:20:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:20:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:20:02,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:20:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:20:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 10:20:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:20:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 10:20:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 10:20:02,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 10:20:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 10:20:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:20:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:20:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:20:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 10:20:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 10:20:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 10:20:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 10:20:02,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:20:02,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 10:20:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 10:20:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 10:20:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-23 10:20:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-23 10:20:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-11-23 10:20:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-23 10:20:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-11-23 10:20:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-23 10:20:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-11-23 10:20:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-23 10:20:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-23 10:20:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-11-23 10:20:02,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-23 10:20:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-11-23 10:20:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-23 10:20:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-23 10:20:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-11-23 10:20:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:20:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-23 10:20:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-11-23 10:20:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-11-23 10:20:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2023-11-23 10:20:02,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2023-11-23 10:20:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-11-23 10:20:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-11-23 10:20:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:20:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-11-23 10:20:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2023-11-23 10:20:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-11-23 10:20:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:02,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2725 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2703 trivial. 0 not checked. [2023-11-23 10:20:02,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:20:02,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863875194] [2023-11-23 10:20:02,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863875194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:20:02,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:20:02,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-23 10:20:02,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107828081] [2023-11-23 10:20:02,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:20:02,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 10:20:02,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:20:02,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 10:20:02,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-23 10:20:02,532 INFO L87 Difference]: Start difference. First operand 3749 states and 5466 transitions. Second operand has 11 states, 11 states have (on average 12.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (56), 9 states have call predecessors, (56), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2023-11-23 10:20:07,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:20:07,696 INFO L93 Difference]: Finished difference Result 8237 states and 12528 transitions. [2023-11-23 10:20:07,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 10:20:07,697 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (56), 9 states have call predecessors, (56), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 371 [2023-11-23 10:20:07,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:20:07,710 INFO L225 Difference]: With dead ends: 8237 [2023-11-23 10:20:07,711 INFO L226 Difference]: Without dead ends: 4986 [2023-11-23 10:20:07,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2023-11-23 10:20:07,719 INFO L413 NwaCegarLoop]: 1473 mSDtfsCounter, 1885 mSDsluCounter, 5554 mSDsCounter, 0 mSdLazyCounter, 5058 mSolverCounterSat, 2109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2060 SdHoareTripleChecker+Valid, 7027 SdHoareTripleChecker+Invalid, 7167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2109 IncrementalHoareTripleChecker+Valid, 5058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-23 10:20:07,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2060 Valid, 7027 Invalid, 7167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2109 Valid, 5058 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-23 10:20:07,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4986 states. [2023-11-23 10:20:07,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4986 to 3753. [2023-11-23 10:20:07,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3753 states, 2563 states have (on average 1.3776824034334765) internal successors, (3531), 2589 states have internal predecessors, (3531), 937 states have call successors, (937), 239 states have call predecessors, (937), 252 states have return successors, (1002), 943 states have call predecessors, (1002), 936 states have call successors, (1002) [2023-11-23 10:20:07,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 5470 transitions. [2023-11-23 10:20:07,904 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 5470 transitions. Word has length 371 [2023-11-23 10:20:07,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:20:07,905 INFO L495 AbstractCegarLoop]: Abstraction has 3753 states and 5470 transitions. [2023-11-23 10:20:07,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (56), 9 states have call predecessors, (56), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2023-11-23 10:20:07,905 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 5470 transitions. [2023-11-23 10:20:07,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2023-11-23 10:20:07,916 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:20:07,916 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:20:07,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 10:20:07,916 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:20:07,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:20:07,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1211925607, now seen corresponding path program 1 times [2023-11-23 10:20:07,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:20:07,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836994] [2023-11-23 10:20:07,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:20:07,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:20:08,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:20:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:20:08,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:20:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:20:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:20:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:20:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:20:08,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 10:20:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:20:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 10:20:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 10:20:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 10:20:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 10:20:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:20:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:20:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:20:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 10:20:08,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 10:20:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 10:20:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 10:20:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:20:08,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 10:20:08,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 10:20:08,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 10:20:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-23 10:20:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-23 10:20:08,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-11-23 10:20:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-23 10:20:08,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-11-23 10:20:08,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-23 10:20:08,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-11-23 10:20:08,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-23 10:20:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-23 10:20:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-11-23 10:20:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-23 10:20:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-11-23 10:20:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-23 10:20:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-23 10:20:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-11-23 10:20:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:20:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:08,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-23 10:20:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-11-23 10:20:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-11-23 10:20:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-11-23 10:20:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-23 10:20:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-11-23 10:20:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-11-23 10:20:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-11-23 10:20:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-11-23 10:20:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-11-23 10:20:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-11-23 10:20:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2023-11-23 10:20:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2023-11-23 10:20:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2023-11-23 10:20:08,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:20:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2023-11-23 10:20:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2023-11-23 10:20:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2023-11-23 10:20:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:08,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2773 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2751 trivial. 0 not checked. [2023-11-23 10:20:08,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:20:08,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836994] [2023-11-23 10:20:08,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:20:08,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:20:08,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-23 10:20:08,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083843678] [2023-11-23 10:20:08,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:20:08,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 10:20:08,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:20:08,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 10:20:08,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-23 10:20:08,609 INFO L87 Difference]: Start difference. First operand 3753 states and 5470 transitions. Second operand has 11 states, 11 states have (on average 13.818181818181818) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (64), 9 states have call predecessors, (64), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2023-11-23 10:20:14,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:20:14,021 INFO L93 Difference]: Finished difference Result 7423 states and 11116 transitions. [2023-11-23 10:20:14,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 10:20:14,022 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.818181818181818) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (64), 9 states have call predecessors, (64), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 420 [2023-11-23 10:20:14,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:20:14,035 INFO L225 Difference]: With dead ends: 7423 [2023-11-23 10:20:14,036 INFO L226 Difference]: Without dead ends: 4168 [2023-11-23 10:20:14,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2023-11-23 10:20:14,045 INFO L413 NwaCegarLoop]: 1103 mSDtfsCounter, 1432 mSDsluCounter, 4787 mSDsCounter, 0 mSdLazyCounter, 5262 mSolverCounterSat, 1712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 5890 SdHoareTripleChecker+Invalid, 6974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1712 IncrementalHoareTripleChecker+Valid, 5262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-23 10:20:14,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 5890 Invalid, 6974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1712 Valid, 5262 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-23 10:20:14,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4168 states. [2023-11-23 10:20:14,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4168 to 3757. [2023-11-23 10:20:14,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3757 states, 2567 states have (on average 1.3770938839111804) internal successors, (3535), 2593 states have internal predecessors, (3535), 937 states have call successors, (937), 239 states have call predecessors, (937), 252 states have return successors, (1002), 943 states have call predecessors, (1002), 936 states have call successors, (1002) [2023-11-23 10:20:14,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3757 states to 3757 states and 5474 transitions. [2023-11-23 10:20:14,233 INFO L78 Accepts]: Start accepts. Automaton has 3757 states and 5474 transitions. Word has length 420 [2023-11-23 10:20:14,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:20:14,235 INFO L495 AbstractCegarLoop]: Abstraction has 3757 states and 5474 transitions. [2023-11-23 10:20:14,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.818181818181818) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (64), 9 states have call predecessors, (64), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2023-11-23 10:20:14,235 INFO L276 IsEmpty]: Start isEmpty. Operand 3757 states and 5474 transitions. [2023-11-23 10:20:14,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2023-11-23 10:20:14,245 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:20:14,245 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:20:14,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 10:20:14,245 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:20:14,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:20:14,246 INFO L85 PathProgramCache]: Analyzing trace with hash -280692996, now seen corresponding path program 1 times [2023-11-23 10:20:14,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:20:14,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787528243] [2023-11-23 10:20:14,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:20:14,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:20:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:20:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:20:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:20:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:20:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:20:14,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:20:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:20:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 10:20:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:20:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 10:20:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 10:20:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 10:20:14,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 10:20:14,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:20:14,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:20:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:20:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 10:20:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 10:20:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 10:20:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 10:20:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:20:14,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 10:20:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 10:20:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 10:20:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-23 10:20:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-23 10:20:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-11-23 10:20:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-23 10:20:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-11-23 10:20:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-23 10:20:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-11-23 10:20:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-23 10:20:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-23 10:20:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-11-23 10:20:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-23 10:20:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-11-23 10:20:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-23 10:20:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-23 10:20:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-11-23 10:20:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:20:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-23 10:20:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-11-23 10:20:14,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-11-23 10:20:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-11-23 10:20:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-23 10:20:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-11-23 10:20:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-11-23 10:20:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2023-11-23 10:20:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-11-23 10:20:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2023-11-23 10:20:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2023-11-23 10:20:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2023-11-23 10:20:14,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2023-11-23 10:20:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-11-23 10:20:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:14,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:20:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-11-23 10:20:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2023-11-23 10:20:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-11-23 10:20:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:14,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2773 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2751 trivial. 0 not checked. [2023-11-23 10:20:14,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:20:14,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787528243] [2023-11-23 10:20:14,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787528243] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:20:14,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465261477] [2023-11-23 10:20:14,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:20:14,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:20:14,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:20:14,927 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 10:20:14,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 10:20:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:15,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 4246 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 10:20:15,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 10:20:16,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2773 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2751 trivial. 0 not checked. [2023-11-23 10:20:16,009 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 10:20:16,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465261477] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:20:16,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 10:20:16,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2023-11-23 10:20:16,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659152729] [2023-11-23 10:20:16,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:20:16,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 10:20:16,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:20:16,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 10:20:16,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2023-11-23 10:20:16,012 INFO L87 Difference]: Start difference. First operand 3757 states and 5474 transitions. Second operand has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 7 states have internal predecessors, (153), 4 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2023-11-23 10:20:17,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:20:17,931 INFO L93 Difference]: Finished difference Result 12259 states and 18174 transitions. [2023-11-23 10:20:17,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 10:20:17,932 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 7 states have internal predecessors, (153), 4 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) Word has length 421 [2023-11-23 10:20:17,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:20:17,954 INFO L225 Difference]: With dead ends: 12259 [2023-11-23 10:20:17,954 INFO L226 Difference]: Without dead ends: 9000 [2023-11-23 10:20:17,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 541 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702 [2023-11-23 10:20:17,963 INFO L413 NwaCegarLoop]: 3510 mSDtfsCounter, 2588 mSDsluCounter, 15557 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2667 SdHoareTripleChecker+Valid, 19067 SdHoareTripleChecker+Invalid, 2085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 10:20:17,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2667 Valid, 19067 Invalid, 2085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 10:20:17,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9000 states. [2023-11-23 10:20:18,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9000 to 7062. [2023-11-23 10:20:18,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7062 states, 4822 states have (on average 1.3753629199502282) internal successors, (6632), 4878 states have internal predecessors, (6632), 1765 states have call successors, (1765), 447 states have call predecessors, (1765), 474 states have return successors, (1898), 1774 states have call predecessors, (1898), 1764 states have call successors, (1898) [2023-11-23 10:20:18,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7062 states to 7062 states and 10295 transitions. [2023-11-23 10:20:18,337 INFO L78 Accepts]: Start accepts. Automaton has 7062 states and 10295 transitions. Word has length 421 [2023-11-23 10:20:18,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:20:18,338 INFO L495 AbstractCegarLoop]: Abstraction has 7062 states and 10295 transitions. [2023-11-23 10:20:18,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 7 states have internal predecessors, (153), 4 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2023-11-23 10:20:18,338 INFO L276 IsEmpty]: Start isEmpty. Operand 7062 states and 10295 transitions. [2023-11-23 10:20:18,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2023-11-23 10:20:18,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:20:18,354 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:20:18,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 10:20:18,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 10:20:18,573 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:20:18,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:20:18,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1969636738, now seen corresponding path program 1 times [2023-11-23 10:20:18,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:20:18,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064142301] [2023-11-23 10:20:18,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:20:18,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:20:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:19,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:20:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:20:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:20:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:20:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:20:19,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:20:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:20:19,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 10:20:19,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:20:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 10:20:19,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 10:20:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 10:20:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 10:20:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:20:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:20:19,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:20:19,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 10:20:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 10:20:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 10:20:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 10:20:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:20:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 10:20:19,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 10:20:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 10:20:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-23 10:20:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-23 10:20:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-11-23 10:20:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-23 10:20:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-11-23 10:20:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-23 10:20:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-11-23 10:20:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-23 10:20:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-23 10:20:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-11-23 10:20:19,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-23 10:20:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-11-23 10:20:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-23 10:20:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-23 10:20:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-11-23 10:20:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:20:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-23 10:20:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-11-23 10:20:19,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-11-23 10:20:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-11-23 10:20:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-23 10:20:19,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-11-23 10:20:19,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-11-23 10:20:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2023-11-23 10:20:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-11-23 10:20:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2023-11-23 10:20:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2023-11-23 10:20:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2023-11-23 10:20:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2023-11-23 10:20:19,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-11-23 10:20:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:20:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-11-23 10:20:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2023-11-23 10:20:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-11-23 10:20:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:19,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2773 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 2741 trivial. 0 not checked. [2023-11-23 10:20:19,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:20:19,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064142301] [2023-11-23 10:20:19,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064142301] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:20:19,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035536348] [2023-11-23 10:20:19,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:20:19,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:20:19,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:20:19,725 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 10:20:19,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 10:20:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:20,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 4241 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 10:20:20,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 10:20:20,729 INFO L134 CoverageAnalysis]: Checked inductivity of 2773 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 2713 trivial. 0 not checked. [2023-11-23 10:20:20,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 10:20:20,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035536348] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:20:20,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 10:20:20,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-11-23 10:20:20,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455562513] [2023-11-23 10:20:20,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:20:20,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 10:20:20,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:20:20,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 10:20:20,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-11-23 10:20:20,732 INFO L87 Difference]: Start difference. First operand 7062 states and 10295 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2023-11-23 10:20:21,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:20:21,739 INFO L93 Difference]: Finished difference Result 13638 states and 19890 transitions. [2023-11-23 10:20:21,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 10:20:21,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 421 [2023-11-23 10:20:21,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:20:21,764 INFO L225 Difference]: With dead ends: 13638 [2023-11-23 10:20:21,764 INFO L226 Difference]: Without dead ends: 7074 [2023-11-23 10:20:21,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 542 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-11-23 10:20:21,783 INFO L413 NwaCegarLoop]: 1629 mSDtfsCounter, 2 mSDsluCounter, 3248 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4877 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 10:20:21,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4877 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 10:20:21,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7074 states. [2023-11-23 10:20:22,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7074 to 7070. [2023-11-23 10:20:22,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7070 states, 4830 states have (on average 1.3747412008281574) internal successors, (6640), 4886 states have internal predecessors, (6640), 1765 states have call successors, (1765), 447 states have call predecessors, (1765), 474 states have return successors, (1898), 1774 states have call predecessors, (1898), 1764 states have call successors, (1898) [2023-11-23 10:20:22,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7070 states to 7070 states and 10303 transitions. [2023-11-23 10:20:22,340 INFO L78 Accepts]: Start accepts. Automaton has 7070 states and 10303 transitions. Word has length 421 [2023-11-23 10:20:22,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:20:22,341 INFO L495 AbstractCegarLoop]: Abstraction has 7070 states and 10303 transitions. [2023-11-23 10:20:22,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2023-11-23 10:20:22,341 INFO L276 IsEmpty]: Start isEmpty. Operand 7070 states and 10303 transitions. [2023-11-23 10:20:22,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2023-11-23 10:20:22,358 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:20:22,359 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:20:22,402 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-23 10:20:22,604 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,SelfDestructingSolverStorable11 [2023-11-23 10:20:22,604 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:20:22,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:20:22,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1365308694, now seen corresponding path program 1 times [2023-11-23 10:20:22,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:20:22,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543393907] [2023-11-23 10:20:22,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:20:22,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:20:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:20:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:20:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:20:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:20:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:20:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:20:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:20:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 10:20:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:20:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 10:20:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 10:20:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 10:20:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 10:20:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:20:23,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:20:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:20:23,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 10:20:23,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 10:20:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 10:20:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 10:20:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:20:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 10:20:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 10:20:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 10:20:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-23 10:20:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-23 10:20:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-11-23 10:20:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-23 10:20:23,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-11-23 10:20:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-23 10:20:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-11-23 10:20:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-23 10:20:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-23 10:20:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-11-23 10:20:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-23 10:20:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-11-23 10:20:23,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-23 10:20:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-23 10:20:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-11-23 10:20:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:20:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-23 10:20:23,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-11-23 10:20:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-11-23 10:20:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-11-23 10:20:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-23 10:20:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-11-23 10:20:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-11-23 10:20:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2023-11-23 10:20:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-11-23 10:20:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-11-23 10:20:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2023-11-23 10:20:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-11-23 10:20:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2023-11-23 10:20:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2023-11-23 10:20:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:20:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2023-11-23 10:20:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-11-23 10:20:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2023-11-23 10:20:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:23,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2773 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 2741 trivial. 0 not checked. [2023-11-23 10:20:23,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:20:23,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543393907] [2023-11-23 10:20:23,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543393907] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:20:23,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678108018] [2023-11-23 10:20:23,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:20:23,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:20:23,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:20:23,737 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) [2023-11-23 10:20:23,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 10:20:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:24,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 4247 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 10:20:24,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 10:20:24,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2773 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 2719 trivial. 0 not checked. [2023-11-23 10:20:24,867 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 10:20:24,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678108018] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:20:24,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 10:20:24,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-11-23 10:20:24,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607448768] [2023-11-23 10:20:24,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:20:24,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 10:20:24,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:20:24,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 10:20:24,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-11-23 10:20:24,871 INFO L87 Difference]: Start difference. First operand 7070 states and 10303 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 3 states have call successors, (64), 2 states have call predecessors, (64), 3 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2023-11-23 10:20:25,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:20:25,502 INFO L93 Difference]: Finished difference Result 13654 states and 19922 transitions. [2023-11-23 10:20:25,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 10:20:25,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 3 states have call successors, (64), 2 states have call predecessors, (64), 3 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) Word has length 422 [2023-11-23 10:20:25,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:20:25,526 INFO L225 Difference]: With dead ends: 13654 [2023-11-23 10:20:25,527 INFO L226 Difference]: Without dead ends: 7070 [2023-11-23 10:20:25,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 543 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-23 10:20:25,545 INFO L413 NwaCegarLoop]: 1623 mSDtfsCounter, 5 mSDsluCounter, 3236 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4859 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 10:20:25,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4859 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 10:20:25,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7070 states. [2023-11-23 10:20:25,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7070 to 7070. [2023-11-23 10:20:25,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7070 states, 4830 states have (on average 1.373913043478261) internal successors, (6636), 4886 states have internal predecessors, (6636), 1765 states have call successors, (1765), 447 states have call predecessors, (1765), 474 states have return successors, (1898), 1774 states have call predecessors, (1898), 1764 states have call successors, (1898) [2023-11-23 10:20:25,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7070 states to 7070 states and 10299 transitions. [2023-11-23 10:20:26,000 INFO L78 Accepts]: Start accepts. Automaton has 7070 states and 10299 transitions. Word has length 422 [2023-11-23 10:20:26,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:20:26,001 INFO L495 AbstractCegarLoop]: Abstraction has 7070 states and 10299 transitions. [2023-11-23 10:20:26,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 3 states have call successors, (64), 2 states have call predecessors, (64), 3 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2023-11-23 10:20:26,001 INFO L276 IsEmpty]: Start isEmpty. Operand 7070 states and 10299 transitions. [2023-11-23 10:20:26,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2023-11-23 10:20:26,014 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:20:26,015 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:20:26,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 10:20:26,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:20:26,233 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:20:26,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:20:26,234 INFO L85 PathProgramCache]: Analyzing trace with hash 719403671, now seen corresponding path program 1 times [2023-11-23 10:20:26,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:20:26,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129732250] [2023-11-23 10:20:26,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:20:26,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:20:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:20:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:20:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:20:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:20:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:20:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:20:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:20:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 10:20:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:20:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 10:20:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 10:20:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 10:20:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 10:20:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:20:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:20:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:20:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 10:20:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 10:20:26,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 10:20:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 10:20:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:20:26,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 10:20:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 10:20:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 10:20:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-23 10:20:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-23 10:20:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-11-23 10:20:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-23 10:20:26,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-11-23 10:20:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-23 10:20:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-11-23 10:20:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-23 10:20:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-23 10:20:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-11-23 10:20:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-23 10:20:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-11-23 10:20:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:26,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-23 10:20:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-23 10:20:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-11-23 10:20:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 10:20:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-11-23 10:20:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-11-23 10:20:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-11-23 10:20:27,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-11-23 10:20:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-11-23 10:20:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2023-11-23 10:20:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-11-23 10:20:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-11-23 10:20:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2023-11-23 10:20:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-11-23 10:20:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2023-11-23 10:20:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-11-23 10:20:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2023-11-23 10:20:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-11-23 10:20:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:20:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2023-11-23 10:20:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2023-11-23 10:20:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2023-11-23 10:20:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:27,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2773 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 2741 trivial. 0 not checked. [2023-11-23 10:20:27,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:20:27,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129732250] [2023-11-23 10:20:27,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129732250] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:20:27,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072593094] [2023-11-23 10:20:27,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:20:27,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:20:27,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:20:27,130 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) [2023-11-23 10:20:27,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 10:20:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:28,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 4249 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 10:20:28,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 10:20:28,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2773 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 2739 trivial. 0 not checked. [2023-11-23 10:20:28,259 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 10:20:28,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072593094] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:20:28,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 10:20:28,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 15 [2023-11-23 10:20:28,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896911468] [2023-11-23 10:20:28,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:20:28,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 10:20:28,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:20:28,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 10:20:28,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-23 10:20:28,261 INFO L87 Difference]: Start difference. First operand 7070 states and 10299 transitions. Second operand has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 5 states have internal predecessors, (158), 4 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (63), 4 states have call predecessors, (63), 3 states have call successors, (63) [2023-11-23 10:20:29,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:20:29,302 INFO L93 Difference]: Finished difference Result 13660 states and 19924 transitions. [2023-11-23 10:20:29,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 10:20:29,303 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 5 states have internal predecessors, (158), 4 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (63), 4 states have call predecessors, (63), 3 states have call successors, (63) Word has length 423 [2023-11-23 10:20:29,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:20:29,322 INFO L225 Difference]: With dead ends: 13660 [2023-11-23 10:20:29,322 INFO L226 Difference]: Without dead ends: 7088 [2023-11-23 10:20:29,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 559 GetRequests, 543 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2023-11-23 10:20:29,335 INFO L413 NwaCegarLoop]: 1717 mSDtfsCounter, 1724 mSDsluCounter, 6684 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1728 SdHoareTripleChecker+Valid, 8401 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 10:20:29,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1728 Valid, 8401 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 10:20:29,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7088 states. [2023-11-23 10:20:29,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7088 to 7084. [2023-11-23 10:20:29,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7084 states, 4840 states have (on average 1.3731404958677687) internal successors, (6646), 4896 states have internal predecessors, (6646), 1767 states have call successors, (1767), 447 states have call predecessors, (1767), 476 states have return successors, (1910), 1778 states have call predecessors, (1910), 1766 states have call successors, (1910) [2023-11-23 10:20:29,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7084 states to 7084 states and 10323 transitions. [2023-11-23 10:20:29,672 INFO L78 Accepts]: Start accepts. Automaton has 7084 states and 10323 transitions. Word has length 423 [2023-11-23 10:20:29,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:20:29,672 INFO L495 AbstractCegarLoop]: Abstraction has 7084 states and 10323 transitions. [2023-11-23 10:20:29,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 5 states have internal predecessors, (158), 4 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (63), 4 states have call predecessors, (63), 3 states have call successors, (63) [2023-11-23 10:20:29,673 INFO L276 IsEmpty]: Start isEmpty. Operand 7084 states and 10323 transitions. [2023-11-23 10:20:29,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2023-11-23 10:20:29,689 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:20:29,690 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:20:29,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 10:20:29,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:20:29,909 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:20:29,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:20:29,909 INFO L85 PathProgramCache]: Analyzing trace with hash 391608680, now seen corresponding path program 1 times [2023-11-23 10:20:29,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:20:29,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342938335] [2023-11-23 10:20:29,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:20:29,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:20:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:20:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:20:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:20:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:20:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:20:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:20:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:20:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 10:20:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:20:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 10:20:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 10:20:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 10:20:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 10:20:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:20:30,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:20:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:20:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 10:20:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 10:20:30,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 10:20:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 10:20:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:20:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 10:20:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 10:20:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 10:20:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-23 10:20:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-23 10:20:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-11-23 10:20:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-23 10:20:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-11-23 10:20:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-23 10:20:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-11-23 10:20:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-23 10:20:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-23 10:20:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-11-23 10:20:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-23 10:20:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-11-23 10:20:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-23 10:20:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-23 10:20:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-11-23 10:20:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 10:20:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-11-23 10:20:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-11-23 10:20:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-11-23 10:20:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-11-23 10:20:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-11-23 10:20:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2023-11-23 10:20:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-11-23 10:20:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-11-23 10:20:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2023-11-23 10:20:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-11-23 10:20:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2023-11-23 10:20:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-11-23 10:20:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2023-11-23 10:20:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:30,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-11-23 10:20:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:20:30,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:20:30,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:30,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-11-23 10:20:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:31,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2023-11-23 10:20:31,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:31,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2023-11-23 10:20:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:31,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2773 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 2741 trivial. 0 not checked. [2023-11-23 10:20:31,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:20:31,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342938335] [2023-11-23 10:20:31,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342938335] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:20:31,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196814988] [2023-11-23 10:20:31,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:20:31,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:20:31,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:20:31,021 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) [2023-11-23 10:20:31,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 10:20:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:31,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 4275 conjuncts, 54 conjunts are in the unsatisfiable core [2023-11-23 10:20:32,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 10:20:32,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2773 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 2739 trivial. 0 not checked. [2023-11-23 10:20:32,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 10:20:32,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196814988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:20:32,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 10:20:32,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [12] total 23 [2023-11-23 10:20:32,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866631719] [2023-11-23 10:20:32,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:20:32,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 10:20:32,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:20:32,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 10:20:32,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2023-11-23 10:20:32,213 INFO L87 Difference]: Start difference. First operand 7084 states and 10323 transitions. Second operand has 13 states, 11 states have (on average 14.727272727272727) internal successors, (162), 10 states have internal predecessors, (162), 4 states have call successors, (65), 2 states have call predecessors, (65), 5 states have return successors, (64), 6 states have call predecessors, (64), 4 states have call successors, (64) [2023-11-23 10:20:34,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:20:34,936 INFO L93 Difference]: Finished difference Result 13670 states and 19938 transitions. [2023-11-23 10:20:34,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-23 10:20:34,936 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 14.727272727272727) internal successors, (162), 10 states have internal predecessors, (162), 4 states have call successors, (65), 2 states have call predecessors, (65), 5 states have return successors, (64), 6 states have call predecessors, (64), 4 states have call successors, (64) Word has length 429 [2023-11-23 10:20:34,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:20:34,969 INFO L225 Difference]: With dead ends: 13670 [2023-11-23 10:20:34,969 INFO L226 Difference]: Without dead ends: 7084 [2023-11-23 10:20:34,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 579 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=1141, Unknown=0, NotChecked=0, Total=1260 [2023-11-23 10:20:34,990 INFO L413 NwaCegarLoop]: 3076 mSDtfsCounter, 1660 mSDsluCounter, 32316 mSDsCounter, 0 mSdLazyCounter, 2787 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1661 SdHoareTripleChecker+Valid, 35392 SdHoareTripleChecker+Invalid, 2794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-23 10:20:34,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1661 Valid, 35392 Invalid, 2794 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 2787 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-23 10:20:34,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7084 states. [2023-11-23 10:20:35,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7084 to 7078. [2023-11-23 10:20:35,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7078 states, 4836 states have (on average 1.3722084367245657) internal successors, (6636), 4892 states have internal predecessors, (6636), 1765 states have call successors, (1765), 447 states have call predecessors, (1765), 476 states have return successors, (1908), 1776 states have call predecessors, (1908), 1764 states have call successors, (1908) [2023-11-23 10:20:35,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7078 states to 7078 states and 10309 transitions. [2023-11-23 10:20:35,519 INFO L78 Accepts]: Start accepts. Automaton has 7078 states and 10309 transitions. Word has length 429 [2023-11-23 10:20:35,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:20:35,520 INFO L495 AbstractCegarLoop]: Abstraction has 7078 states and 10309 transitions. [2023-11-23 10:20:35,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 14.727272727272727) internal successors, (162), 10 states have internal predecessors, (162), 4 states have call successors, (65), 2 states have call predecessors, (65), 5 states have return successors, (64), 6 states have call predecessors, (64), 4 states have call successors, (64) [2023-11-23 10:20:35,521 INFO L276 IsEmpty]: Start isEmpty. Operand 7078 states and 10309 transitions. [2023-11-23 10:20:35,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2023-11-23 10:20:35,533 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:20:35,533 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 7, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:20:35,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 10:20:35,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-23 10:20:35,749 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:20:35,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:20:35,749 INFO L85 PathProgramCache]: Analyzing trace with hash 199294807, now seen corresponding path program 1 times [2023-11-23 10:20:35,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:20:35,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753571788] [2023-11-23 10:20:35,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:20:35,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:20:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:20:36,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:20:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:20:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:20:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:20:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:20:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:20:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 10:20:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:20:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 10:20:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 10:20:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 10:20:36,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 10:20:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:20:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:20:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:20:36,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 10:20:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 10:20:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 10:20:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 10:20:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:20:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 10:20:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 10:20:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 10:20:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-23 10:20:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-23 10:20:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-11-23 10:20:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-23 10:20:36,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-11-23 10:20:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-23 10:20:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-11-23 10:20:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-23 10:20:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-23 10:20:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-11-23 10:20:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-23 10:20:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-11-23 10:20:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-23 10:20:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-23 10:20:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-11-23 10:20:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 10:20:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-11-23 10:20:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-11-23 10:20:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-11-23 10:20:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-11-23 10:20:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-11-23 10:20:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2023-11-23 10:20:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:36,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-11-23 10:20:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-11-23 10:20:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2023-11-23 10:20:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-11-23 10:20:36,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2023-11-23 10:20:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-11-23 10:20:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2023-11-23 10:20:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-11-23 10:20:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:20:36,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:20:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-11-23 10:20:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2023-11-23 10:20:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:20:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2023-11-23 10:20:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2023-11-23 10:20:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2023-11-23 10:20:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2023-11-23 10:20:36,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:36,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2801 backedges. 22 proven. 12 refuted. 0 times theorem prover too weak. 2767 trivial. 0 not checked. [2023-11-23 10:20:36,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:20:36,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753571788] [2023-11-23 10:20:36,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753571788] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:20:36,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184925289] [2023-11-23 10:20:36,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:20:36,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:20:36,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:20:36,986 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) [2023-11-23 10:20:36,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 10:20:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:20:38,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 4546 conjuncts, 113 conjunts are in the unsatisfiable core [2023-11-23 10:20:38,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 10:20:38,525 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 [2023-11-23 10:20:38,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-23 10:20:38,663 INFO L349 Elim1Store]: treesize reduction 115, result has 0.9 percent of original size [2023-11-23 10:20:38,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 259 treesize of output 251 [2023-11-23 10:20:38,673 INFO L349 Elim1Store]: treesize reduction 115, result has 0.9 percent of original size [2023-11-23 10:20:38,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 251 treesize of output 245 [2023-11-23 10:20:38,688 INFO L349 Elim1Store]: treesize reduction 54, result has 8.5 percent of original size [2023-11-23 10:20:38,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 177 [2023-11-23 10:20:38,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 97 [2023-11-23 10:20:38,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 10:20:38,704 INFO L349 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2023-11-23 10:20:38,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 92 [2023-11-23 10:20:38,728 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2023-11-23 10:20:38,729 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 2 case distinctions, treesize of input 33 treesize of output 5 [2023-11-23 10:20:39,447 INFO L349 Elim1Store]: treesize reduction 68, result has 31.3 percent of original size [2023-11-23 10:20:39,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 122 treesize of output 88 [2023-11-23 10:20:39,512 INFO L349 Elim1Store]: treesize reduction 87, result has 37.4 percent of original size [2023-11-23 10:20:39,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 89 treesize of output 125 [2023-11-23 10:20:39,596 INFO L349 Elim1Store]: treesize reduction 68, result has 42.9 percent of original size [2023-11-23 10:20:39,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 56 treesize of output 83 [2023-11-23 10:20:39,774 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 19 treesize of output 7 [2023-11-23 10:20:40,083 INFO L134 CoverageAnalysis]: Checked inductivity of 2801 backedges. 56 proven. 14 refuted. 0 times theorem prover too weak. 2731 trivial. 0 not checked. [2023-11-23 10:20:40,083 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 10:20:40,770 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 10:20:40,770 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 94 [2023-11-23 10:20:40,775 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 10:20:40,775 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 64 [2023-11-23 10:20:40,781 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 432 treesize of output 366 [2023-11-23 10:20:40,788 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 328 treesize of output 304 [2023-11-23 10:20:40,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2023-11-23 10:20:40,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2023-11-23 10:20:40,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2023-11-23 10:20:40,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2023-11-23 10:20:41,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2801 backedges. 32 proven. 14 refuted. 0 times theorem prover too weak. 2755 trivial. 0 not checked. [2023-11-23 10:20:41,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184925289] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 10:20:41,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 10:20:41,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 30, 25] total 63 [2023-11-23 10:20:41,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23806019] [2023-11-23 10:20:41,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 10:20:41,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2023-11-23 10:20:41,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:20:41,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2023-11-23 10:20:41,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=3612, Unknown=46, NotChecked=0, Total=3906 [2023-11-23 10:20:41,848 INFO L87 Difference]: Start difference. First operand 7078 states and 10309 transitions. Second operand has 63 states, 54 states have (on average 6.925925925925926) internal successors, (374), 42 states have internal predecessors, (374), 19 states have call successors, (158), 15 states have call predecessors, (158), 18 states have return successors, (121), 28 states have call predecessors, (121), 19 states have call successors, (121) [2023-11-23 10:21:54,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:21:54,869 INFO L93 Difference]: Finished difference Result 21719 states and 32803 transitions. [2023-11-23 10:21:54,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2023-11-23 10:21:54,869 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 54 states have (on average 6.925925925925926) internal successors, (374), 42 states have internal predecessors, (374), 19 states have call successors, (158), 15 states have call predecessors, (158), 18 states have return successors, (121), 28 states have call predecessors, (121), 19 states have call successors, (121) Word has length 459 [2023-11-23 10:21:54,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:21:54,917 INFO L225 Difference]: With dead ends: 21719 [2023-11-23 10:21:54,918 INFO L226 Difference]: Without dead ends: 15117 [2023-11-23 10:21:54,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1263 GetRequests, 1036 SyntacticMatches, 9 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15210 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=5182, Invalid=42689, Unknown=309, NotChecked=0, Total=48180 [2023-11-23 10:21:54,944 INFO L413 NwaCegarLoop]: 1610 mSDtfsCounter, 21498 mSDsluCounter, 55545 mSDsCounter, 0 mSdLazyCounter, 75992 mSolverCounterSat, 17620 mSolverCounterUnsat, 1010 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22057 SdHoareTripleChecker+Valid, 57155 SdHoareTripleChecker+Invalid, 94622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 17620 IncrementalHoareTripleChecker+Valid, 75992 IncrementalHoareTripleChecker+Invalid, 1010 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.7s IncrementalHoareTripleChecker+Time [2023-11-23 10:21:54,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22057 Valid, 57155 Invalid, 94622 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [17620 Valid, 75992 Invalid, 1010 Unknown, 0 Unchecked, 61.7s Time] [2023-11-23 10:21:54,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15117 states. [2023-11-23 10:21:55,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15117 to 12270. [2023-11-23 10:21:55,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12270 states, 8418 states have (on average 1.375623663578047) internal successors, (11580), 8532 states have internal predecessors, (11580), 3015 states have call successors, (3015), 771 states have call predecessors, (3015), 836 states have return successors, (3356), 3030 states have call predecessors, (3356), 3014 states have call successors, (3356) [2023-11-23 10:21:55,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12270 states to 12270 states and 17951 transitions. [2023-11-23 10:21:55,752 INFO L78 Accepts]: Start accepts. Automaton has 12270 states and 17951 transitions. Word has length 459 [2023-11-23 10:21:55,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:21:55,753 INFO L495 AbstractCegarLoop]: Abstraction has 12270 states and 17951 transitions. [2023-11-23 10:21:55,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 54 states have (on average 6.925925925925926) internal successors, (374), 42 states have internal predecessors, (374), 19 states have call successors, (158), 15 states have call predecessors, (158), 18 states have return successors, (121), 28 states have call predecessors, (121), 19 states have call successors, (121) [2023-11-23 10:21:55,753 INFO L276 IsEmpty]: Start isEmpty. Operand 12270 states and 17951 transitions. [2023-11-23 10:21:55,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2023-11-23 10:21:55,767 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:21:55,767 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:21:55,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 10:21:55,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-23 10:21:55,984 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:21:55,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:21:55,985 INFO L85 PathProgramCache]: Analyzing trace with hash -511074503, now seen corresponding path program 2 times [2023-11-23 10:21:55,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:21:55,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603072070] [2023-11-23 10:21:55,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:21:55,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:21:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:21:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:21:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:21:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:21:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:21:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:21:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:21:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:21:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 10:21:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:21:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 10:21:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 10:21:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 10:21:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 10:21:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:21:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:21:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:21:56,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 10:21:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 10:21:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 10:21:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 10:21:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:21:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 10:21:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 10:21:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 10:21:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-23 10:21:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-23 10:21:56,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-11-23 10:21:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-23 10:21:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-11-23 10:21:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-23 10:21:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-11-23 10:21:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-23 10:21:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-23 10:21:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-11-23 10:21:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-23 10:21:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-11-23 10:21:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-23 10:21:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-23 10:21:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:21:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-11-23 10:21:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 10:21:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:21:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:21:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2023-11-23 10:21:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-11-23 10:21:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2023-11-23 10:21:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-11-23 10:21:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:21:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-11-23 10:21:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2023-11-23 10:21:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:21:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-11-23 10:21:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-11-23 10:21:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2023-11-23 10:21:56,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-11-23 10:21:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2023-11-23 10:21:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2023-11-23 10:21:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2023-11-23 10:21:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:21:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2023-11-23 10:21:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:21:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:21:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:21:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2023-11-23 10:21:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2023-11-23 10:21:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:21:56,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2023-11-23 10:21:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2023-11-23 10:21:56,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:56,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2023-11-23 10:21:57,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:57,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2023-11-23 10:21:57,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:21:57,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2819 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2797 trivial. 0 not checked. [2023-11-23 10:21:57,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:21:57,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603072070] [2023-11-23 10:21:57,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603072070] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:21:57,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:21:57,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 10:21:57,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569293697] [2023-11-23 10:21:57,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:21:57,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 10:21:57,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:21:57,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 10:21:57,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-23 10:21:57,020 INFO L87 Difference]: Start difference. First operand 12270 states and 17951 transitions. Second operand has 12 states, 12 states have (on average 14.75) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (68), 10 states have call predecessors, (68), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2023-11-23 10:22:03,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:22:03,333 INFO L93 Difference]: Finished difference Result 27945 states and 42304 transitions. [2023-11-23 10:22:03,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-23 10:22:03,333 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.75) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (68), 10 states have call predecessors, (68), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 471 [2023-11-23 10:22:03,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:22:03,401 INFO L225 Difference]: With dead ends: 27945 [2023-11-23 10:22:03,401 INFO L226 Difference]: Without dead ends: 16173 [2023-11-23 10:22:03,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2023-11-23 10:22:03,439 INFO L413 NwaCegarLoop]: 1473 mSDtfsCounter, 2551 mSDsluCounter, 5490 mSDsCounter, 0 mSdLazyCounter, 4674 mSolverCounterSat, 2918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2655 SdHoareTripleChecker+Valid, 6963 SdHoareTripleChecker+Invalid, 7592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2918 IncrementalHoareTripleChecker+Valid, 4674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-23 10:22:03,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2655 Valid, 6963 Invalid, 7592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2918 Valid, 4674 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-11-23 10:22:03,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16173 states. [2023-11-23 10:22:04,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16173 to 12246. [2023-11-23 10:22:04,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12246 states, 8412 states have (on average 1.3758915834522112) internal successors, (11574), 8526 states have internal predecessors, (11574), 2997 states have call successors, (2997), 771 states have call predecessors, (2997), 836 states have return successors, (3338), 3012 states have call predecessors, (3338), 2996 states have call successors, (3338) [2023-11-23 10:22:04,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12246 states to 12246 states and 17909 transitions. [2023-11-23 10:22:04,266 INFO L78 Accepts]: Start accepts. Automaton has 12246 states and 17909 transitions. Word has length 471 [2023-11-23 10:22:04,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:22:04,266 INFO L495 AbstractCegarLoop]: Abstraction has 12246 states and 17909 transitions. [2023-11-23 10:22:04,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.75) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (68), 10 states have call predecessors, (68), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2023-11-23 10:22:04,267 INFO L276 IsEmpty]: Start isEmpty. Operand 12246 states and 17909 transitions. [2023-11-23 10:22:04,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2023-11-23 10:22:04,278 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:22:04,279 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:22:04,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-23 10:22:04,279 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:22:04,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:22:04,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1102615075, now seen corresponding path program 1 times [2023-11-23 10:22:04,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:22:04,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606902996] [2023-11-23 10:22:04,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:22:04,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:22:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:22:05,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:22:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:22:05,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:22:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:22:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:22:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:22:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 10:22:05,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:22:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 10:22:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 10:22:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 10:22:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 10:22:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:22:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:22:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:22:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 10:22:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 10:22:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 10:22:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 10:22:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:22:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 10:22:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 10:22:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 10:22:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-23 10:22:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-23 10:22:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-11-23 10:22:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-23 10:22:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-11-23 10:22:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-23 10:22:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-11-23 10:22:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-23 10:22:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-23 10:22:05,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-11-23 10:22:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-23 10:22:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-11-23 10:22:05,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-23 10:22:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-23 10:22:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:22:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-11-23 10:22:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 10:22:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:22:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2023-11-23 10:22:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-11-23 10:22:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-11-23 10:22:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-11-23 10:22:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-11-23 10:22:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2023-11-23 10:22:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:05,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-11-23 10:22:05,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-11-23 10:22:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2023-11-23 10:22:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-11-23 10:22:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2023-11-23 10:22:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2023-11-23 10:22:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:05,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-11-23 10:22:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:06,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:06,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2023-11-23 10:22:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:06,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:06,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:22:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:06,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:22:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:06,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2023-11-23 10:22:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:06,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2023-11-23 10:22:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:06,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:06,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2023-11-23 10:22:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:06,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2023-11-23 10:22:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:06,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2023-11-23 10:22:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:06,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2023-11-23 10:22:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:06,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2817 backedges. 30 proven. 4 refuted. 0 times theorem prover too weak. 2783 trivial. 0 not checked. [2023-11-23 10:22:06,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:22:06,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606902996] [2023-11-23 10:22:06,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606902996] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:22:06,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667784625] [2023-11-23 10:22:06,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:22:06,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:22:06,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:22:06,131 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) [2023-11-23 10:22:06,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 10:22:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:07,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 4663 conjuncts, 162 conjunts are in the unsatisfiable core [2023-11-23 10:22:07,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 10:22:07,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-23 10:22:07,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-23 10:22:07,553 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_init_completion___init_waitqueue_head_#in~arg2#1.base_78| Int)) (and (<= (+ |c_#StackHeapBarrier| 1) |v_init_completion___init_waitqueue_head_#in~arg2#1.base_78|) (= |c_#valid| (store |c_old(#valid)| |v_init_completion___init_waitqueue_head_#in~arg2#1.base_78| (select |c_#valid| |v_init_completion___init_waitqueue_head_#in~arg2#1.base_78|))))) is different from true [2023-11-23 10:22:07,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 10:22:07,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 9 [2023-11-23 10:22:07,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-23 10:22:07,571 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_init_completion___init_waitqueue_head_#in~arg2#1.base_79| Int)) (and (<= (+ |c_#StackHeapBarrier| 1) |v_init_completion___init_waitqueue_head_#in~arg2#1.base_79|) (= |c_#valid| (store |c_old(#valid)| |v_init_completion___init_waitqueue_head_#in~arg2#1.base_79| (select |c_#valid| |v_init_completion___init_waitqueue_head_#in~arg2#1.base_79|))))) is different from true [2023-11-23 10:22:07,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 10:22:07,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 9 [2023-11-23 10:22:07,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 10:22:07,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 9 [2023-11-23 10:22:07,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 10:22:07,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 9 [2023-11-23 10:22:08,298 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-23 10:22:08,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-23 10:22:08,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-23 10:22:08,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-23 10:22:08,471 INFO L349 Elim1Store]: treesize reduction 81, result has 19.0 percent of original size [2023-11-23 10:22:08,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 180 treesize of output 202 [2023-11-23 10:22:08,489 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2023-11-23 10:22:08,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 128 [2023-11-23 10:22:08,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 10:22:08,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 67 [2023-11-23 10:22:08,561 INFO L349 Elim1Store]: treesize reduction 51, result has 21.5 percent of original size [2023-11-23 10:22:08,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 41 [2023-11-23 10:22:08,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 10:22:08,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2023-11-23 10:22:08,585 INFO L349 Elim1Store]: treesize reduction 123, result has 0.8 percent of original size [2023-11-23 10:22:08,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 287 treesize of output 269 [2023-11-23 10:22:08,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 92 [2023-11-23 10:22:08,608 INFO L349 Elim1Store]: treesize reduction 123, result has 0.8 percent of original size [2023-11-23 10:22:08,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 295 treesize of output 275 [2023-11-23 10:22:08,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 98 [2023-11-23 10:22:08,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-23 10:22:08,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-23 10:22:09,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-11-23 10:22:09,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-23 10:22:09,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2817 backedges. 64 proven. 40 refuted. 0 times theorem prover too weak. 2712 trivial. 1 not checked. [2023-11-23 10:22:09,255 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 10:22:09,613 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (mod (+ c_~usb_urb~0.offset c_~usb_urb~0.base) 18446744073709551616))) (or (= .cse0 0) (forall ((v_ArrVal_2181 (Array Int Int)) (v_ArrVal_2180 (Array Int Int)) (v_ArrVal_2179 (Array Int Int)) (v_ArrVal_2178 (Array Int Int))) (or (= (mod (let ((.cse3 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ims_pcu_buffers_alloc_#t~mem496#1.base| v_ArrVal_2180)) (.cse2 (+ |c_ULTIMATE.start_ims_pcu_buffers_alloc_~pcu#1.offset| 143))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_ims_pcu_buffers_alloc_~pcu#1.base|) .cse2))) (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ims_pcu_buffers_alloc_#t~mem496#1.base| v_ArrVal_2179) .cse1 v_ArrVal_2178) |c_ULTIMATE.start_ims_pcu_buffers_alloc_~pcu#1.base|) .cse2) (select (select (store .cse3 .cse1 v_ArrVal_2181) |c_ULTIMATE.start_ims_pcu_buffers_alloc_~pcu#1.base|) .cse2)))) 18446744073709551616) .cse0) (not (= (let ((.cse4 (+ 92 |c_ULTIMATE.start_ims_pcu_buffers_alloc_#t~mem496#1.offset|))) (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ims_pcu_buffers_alloc_#t~mem496#1.base|) .cse4 (select v_ArrVal_2180 .cse4))) v_ArrVal_2180)))))) is different from false [2023-11-23 10:22:09,637 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (mod (+ c_~usb_urb~0.offset c_~usb_urb~0.base) 18446744073709551616))) (or (forall ((v_ArrVal_2181 (Array Int Int)) (|v_ULTIMATE.start_ims_pcu_buffers_alloc_#t~mem496#1.offset_11| Int) (v_ArrVal_2180 (Array Int Int)) (v_ArrVal_2179 (Array Int Int)) (v_ArrVal_2178 (Array Int Int))) (let ((.cse0 (+ |c_ULTIMATE.start_ims_pcu_buffers_alloc_~pcu#1.offset| 143))) (let ((.cse4 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ims_pcu_buffers_alloc_~pcu#1.base|) .cse0))) (or (< (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ims_pcu_buffers_alloc_~pcu#1.base|) .cse0) |v_ULTIMATE.start_ims_pcu_buffers_alloc_#t~mem496#1.offset_11|) (= .cse1 (mod (let ((.cse2 (store |c_#memory_$Pointer$.base| .cse4 v_ArrVal_2180))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_ims_pcu_buffers_alloc_~pcu#1.base|) .cse0))) (+ (select (select (store .cse2 .cse3 v_ArrVal_2181) |c_ULTIMATE.start_ims_pcu_buffers_alloc_~pcu#1.base|) .cse0) (select (select (store (store |c_#memory_$Pointer$.offset| .cse4 v_ArrVal_2179) .cse3 v_ArrVal_2178) |c_ULTIMATE.start_ims_pcu_buffers_alloc_~pcu#1.base|) .cse0)))) 18446744073709551616)) (not (= v_ArrVal_2180 (let ((.cse5 (+ 92 |v_ULTIMATE.start_ims_pcu_buffers_alloc_#t~mem496#1.offset_11|))) (store (select |c_#memory_$Pointer$.base| .cse4) .cse5 (select v_ArrVal_2180 .cse5))))))))) (= .cse1 0))) is different from false [2023-11-23 10:22:09,657 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 10:22:09,657 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 94 [2023-11-23 10:22:09,663 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 10:22:09,663 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 79 [2023-11-23 10:22:09,675 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 10:22:09,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 447 treesize of output 431 [2023-11-23 10:22:09,685 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 804 treesize of output 762 [2023-11-23 10:22:09,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 110 [2023-11-23 10:22:09,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 102 [2023-11-23 10:22:09,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2023-11-23 10:22:09,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 77 [2023-11-23 10:22:10,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667784625] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:22:10,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 10:22:10,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 33] total 44 [2023-11-23 10:22:10,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112696891] [2023-11-23 10:22:10,359 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 10:22:10,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-11-23 10:22:10,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:22:10,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-11-23 10:22:10,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=2788, Unknown=4, NotChecked=436, Total=3422 [2023-11-23 10:22:10,362 INFO L87 Difference]: Start difference. First operand 12246 states and 17909 transitions. Second operand has 44 states, 37 states have (on average 8.405405405405405) internal successors, (311), 30 states have internal predecessors, (311), 14 states have call successors, (137), 14 states have call predecessors, (137), 16 states have return successors, (97), 20 states have call predecessors, (97), 14 states have call successors, (97) [2023-11-23 10:22:50,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:23:06,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:23:06,712 INFO L93 Difference]: Finished difference Result 39662 states and 60107 transitions. [2023-11-23 10:23:06,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2023-11-23 10:23:06,713 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 37 states have (on average 8.405405405405405) internal successors, (311), 30 states have internal predecessors, (311), 14 states have call successors, (137), 14 states have call predecessors, (137), 16 states have return successors, (97), 20 states have call predecessors, (97), 14 states have call successors, (97) Word has length 477 [2023-11-23 10:23:06,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:23:06,814 INFO L225 Difference]: With dead ends: 39662 [2023-11-23 10:23:06,814 INFO L226 Difference]: Without dead ends: 27894 [2023-11-23 10:23:06,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 888 GetRequests, 672 SyntacticMatches, 21 SemanticMatches, 195 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 12250 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=4523, Invalid=32545, Unknown=4, NotChecked=1540, Total=38612 [2023-11-23 10:23:06,852 INFO L413 NwaCegarLoop]: 1454 mSDtfsCounter, 14788 mSDsluCounter, 35167 mSDsCounter, 0 mSdLazyCounter, 51046 mSolverCounterSat, 11838 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15047 SdHoareTripleChecker+Valid, 36621 SdHoareTripleChecker+Invalid, 83347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 11838 IncrementalHoareTripleChecker+Valid, 51046 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 20462 IncrementalHoareTripleChecker+Unchecked, 46.6s IncrementalHoareTripleChecker+Time [2023-11-23 10:23:06,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15047 Valid, 36621 Invalid, 83347 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [11838 Valid, 51046 Invalid, 1 Unknown, 20462 Unchecked, 46.6s Time] [2023-11-23 10:23:06,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27894 states. [2023-11-23 10:23:08,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27894 to 24150. [2023-11-23 10:23:08,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24150 states, 16739 states have (on average 1.403429117629488) internal successors, (23492), 17194 states have internal predecessors, (23492), 5523 states have call successors, (5523), 1731 states have call predecessors, (5523), 1887 states have return successors, (7374), 5314 states have call predecessors, (7374), 5522 states have call successors, (7374) [2023-11-23 10:23:08,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24150 states to 24150 states and 36389 transitions. [2023-11-23 10:23:08,553 INFO L78 Accepts]: Start accepts. Automaton has 24150 states and 36389 transitions. Word has length 477 [2023-11-23 10:23:08,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:23:08,554 INFO L495 AbstractCegarLoop]: Abstraction has 24150 states and 36389 transitions. [2023-11-23 10:23:08,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 37 states have (on average 8.405405405405405) internal successors, (311), 30 states have internal predecessors, (311), 14 states have call successors, (137), 14 states have call predecessors, (137), 16 states have return successors, (97), 20 states have call predecessors, (97), 14 states have call successors, (97) [2023-11-23 10:23:08,554 INFO L276 IsEmpty]: Start isEmpty. Operand 24150 states and 36389 transitions. [2023-11-23 10:23:08,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2023-11-23 10:23:08,585 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:23:08,586 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 7, 7, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:23:08,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-23 10:23:08,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:23:08,808 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:23:08,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:23:08,808 INFO L85 PathProgramCache]: Analyzing trace with hash -917345343, now seen corresponding path program 2 times [2023-11-23 10:23:08,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:23:08,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510091410] [2023-11-23 10:23:08,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:23:08,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:23:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:23:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:23:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:23:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:23:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:23:09,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:23:09,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:23:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 10:23:09,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:23:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 10:23:09,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 10:23:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 10:23:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 10:23:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:23:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:23:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:23:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 10:23:09,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 10:23:09,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 10:23:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 10:23:09,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:23:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 10:23:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 10:23:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 10:23:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-23 10:23:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-23 10:23:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-11-23 10:23:09,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-23 10:23:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-11-23 10:23:09,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-23 10:23:09,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-11-23 10:23:09,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-23 10:23:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-23 10:23:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-11-23 10:23:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-23 10:23:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-11-23 10:23:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-23 10:23:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-23 10:23:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:23:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-11-23 10:23:09,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 10:23:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:23:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2023-11-23 10:23:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-11-23 10:23:09,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-11-23 10:23:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-11-23 10:23:09,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:09,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-11-23 10:23:09,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2023-11-23 10:23:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:09,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:23:09,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-11-23 10:23:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-11-23 10:23:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2023-11-23 10:23:09,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2023-11-23 10:23:09,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2023-11-23 10:23:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2023-11-23 10:23:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2023-11-23 10:23:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:23:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2023-11-23 10:23:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:23:09,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:23:09,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2023-11-23 10:23:09,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2023-11-23 10:23:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:09,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2023-11-23 10:23:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2023-11-23 10:23:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2023-11-23 10:23:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2023-11-23 10:23:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:09,978 INFO L134 CoverageAnalysis]: Checked inductivity of 2859 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2859 trivial. 0 not checked. [2023-11-23 10:23:09,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:23:09,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510091410] [2023-11-23 10:23:09,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510091410] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:23:09,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:23:09,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 10:23:09,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571981905] [2023-11-23 10:23:09,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:23:09,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 10:23:09,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:23:09,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 10:23:09,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-23 10:23:09,982 INFO L87 Difference]: Start difference. First operand 24150 states and 36389 transitions. Second operand has 12 states, 11 states have (on average 15.636363636363637) internal successors, (172), 4 states have internal predecessors, (172), 2 states have call successors, (68), 10 states have call predecessors, (68), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Killed by 15