./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i --full-output --preprocessor.use.memory.slicer false --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6ae2ee47 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6150b3a515973ce4119efed812e463608b94129eea9915abf4784f091ce6f187 --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 23:53:25,757 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 23:53:25,816 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-22 23:53:25,822 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 23:53:25,822 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 23:53:25,850 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 23:53:25,851 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 23:53:25,851 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 23:53:25,851 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 23:53:25,854 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 23:53:25,855 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 23:53:25,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 23:53:25,856 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 23:53:25,857 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 23:53:25,857 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 23:53:25,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 23:53:25,858 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 23:53:25,858 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 23:53:25,858 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 23:53:25,858 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 23:53:25,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 23:53:25,860 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 23:53:25,860 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 23:53:25,860 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 23:53:25,860 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 23:53:25,861 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 23:53:25,861 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 23:53:25,861 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 23:53:25,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 23:53:25,861 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 23:53:25,862 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 23:53:25,862 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 23:53:25,862 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 23:53:25,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 23:53:25,863 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 23:53:25,863 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 23:53:25,863 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 23:53:25,863 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 23:53:25,863 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 23:53:25,863 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6150b3a515973ce4119efed812e463608b94129eea9915abf4784f091ce6f187 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-22 23:53:26,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 23:53:26,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 23:53:26,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 23:53:26,102 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 23:53:26,102 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 23:53:26,103 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2023-11-22 23:53:27,059 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 23:53:27,393 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 23:53:27,394 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2023-11-22 23:53:27,421 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ddf08b36/d5487d37df9947388dfe46a7716b4547/FLAGcddfe72ef [2023-11-22 23:53:27,434 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ddf08b36/d5487d37df9947388dfe46a7716b4547 [2023-11-22 23:53:27,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 23:53:27,438 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 23:53:27,441 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 23:53:27,441 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 23:53:27,444 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 23:53:27,445 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:53:27" (1/1) ... [2023-11-22 23:53:27,446 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@811cb86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:27, skipping insertion in model container [2023-11-22 23:53:27,446 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:53:27" (1/1) ... [2023-11-22 23:53:27,544 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 23:53:28,687 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i[238462,238475] [2023-11-22 23:53:28,733 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 23:53:28,758 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 23:53:28,863 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; incl %0": "+m" (v->counter)); [4032] [2023-11-22 23:53:29,021 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i[238462,238475] [2023-11-22 23:53:29,034 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 23:53:29,090 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 23:53:29,096 INFO L206 MainTranslator]: Completed translation [2023-11-22 23:53:29,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:29 WrapperNode [2023-11-22 23:53:29,097 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 23:53:29,098 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 23:53:29,098 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 23:53:29,098 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 23:53:29,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:29" (1/1) ... [2023-11-22 23:53:29,200 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:29" (1/1) ... [2023-11-22 23:53:29,304 INFO L138 Inliner]: procedures = 258, calls = 1853, calls flagged for inlining = 104, calls inlined = 100, statements flattened = 5311 [2023-11-22 23:53:29,304 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 23:53:29,305 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 23:53:29,305 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 23:53:29,305 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 23:53:29,312 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:29" (1/1) ... [2023-11-22 23:53:29,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:29" (1/1) ... [2023-11-22 23:53:29,354 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:29" (1/1) ... [2023-11-22 23:53:29,354 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:29" (1/1) ... [2023-11-22 23:53:29,449 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:29" (1/1) ... [2023-11-22 23:53:29,472 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:29" (1/1) ... [2023-11-22 23:53:29,495 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:29" (1/1) ... [2023-11-22 23:53:29,606 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:29" (1/1) ... [2023-11-22 23:53:29,632 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 23:53:29,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 23:53:29,634 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 23:53:29,634 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 23:53:29,635 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:29" (1/1) ... [2023-11-22 23:53:29,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 23:53:29,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:53:29,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 23:53:29,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 23:53:29,700 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-22 23:53:29,700 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-22 23:53:29,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_12 [2023-11-22 23:53:29,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_12 [2023-11-22 23:53:29,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-22 23:53:29,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-22 23:53:29,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-22 23:53:29,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-22 23:53:29,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-22 23:53:29,701 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-22 23:53:29,702 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_delete [2023-11-22 23:53:29,702 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_delete [2023-11-22 23:53:29,702 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_wait [2023-11-22 23:53:29,702 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_wait [2023-11-22 23:53:29,703 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2023-11-22 23:53:29,703 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2023-11-22 23:53:29,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-11-22 23:53:29,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-11-22 23:53:29,703 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2023-11-22 23:53:29,703 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2023-11-22 23:53:29,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-22 23:53:29,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-22 23:53:29,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-11-22 23:53:29,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-11-22 23:53:29,704 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2023-11-22 23:53:29,704 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2023-11-22 23:53:29,704 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2023-11-22 23:53:29,705 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2023-11-22 23:53:29,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_50 [2023-11-22 23:53:29,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_50 [2023-11-22 23:53:29,705 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-22 23:53:29,705 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-22 23:53:29,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-22 23:53:29,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-22 23:53:29,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-22 23:53:29,707 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-22 23:53:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-22 23:53:29,707 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-22 23:53:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_detect_change [2023-11-22 23:53:29,707 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_detect_change [2023-11-22 23:53:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-22 23:53:29,707 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-22 23:53:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_cancel [2023-11-22 23:53:29,708 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_cancel [2023-11-22 23:53:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-22 23:53:29,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-22 23:53:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_init [2023-11-22 23:53:29,708 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_init [2023-11-22 23:53:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29 [2023-11-22 23:53:29,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29 [2023-11-22 23:53:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2023-11-22 23:53:29,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2023-11-22 23:53:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 23:53:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_27 [2023-11-22 23:53:29,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_27 [2023-11-22 23:53:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-22 23:53:29,709 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-22 23:53:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2023-11-22 23:53:29,710 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2023-11-22 23:53:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-22 23:53:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_13 [2023-11-22 23:53:29,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_13 [2023-11-22 23:53:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-22 23:53:29,710 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-22 23:53:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2023-11-22 23:53:29,711 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2023-11-22 23:53:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_disconnect [2023-11-22 23:53:29,711 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_disconnect [2023-11-22 23:53:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2023-11-22 23:53:29,712 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2023-11-22 23:53:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_15 [2023-11-22 23:53:29,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_15 [2023-11-22 23:53:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 23:53:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-22 23:53:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-22 23:53:29,712 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-22 23:53:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-22 23:53:29,713 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-22 23:53:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-22 23:53:29,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-22 23:53:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-22 23:53:29,713 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-22 23:53:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2023-11-22 23:53:29,713 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2023-11-22 23:53:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-22 23:53:29,714 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-22 23:53:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-22 23:53:29,714 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-22 23:53:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure add_offloaded_reg [2023-11-22 23:53:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure add_offloaded_reg [2023-11-22 23:53:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-11-22 23:53:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-11-22 23:53:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2023-11-22 23:53:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2023-11-22 23:53:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_to_multiple_of_64 [2023-11-22 23:53:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_to_multiple_of_64 [2023-11-22 23:53:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2023-11-22 23:53:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2023-11-22 23:53:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-22 23:53:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2023-11-22 23:53:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2023-11-22 23:53:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-22 23:53:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-22 23:53:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-22 23:53:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2023-11-22 23:53:29,717 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2023-11-22 23:53:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2023-11-22 23:53:29,717 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2023-11-22 23:53:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2023-11-22 23:53:29,717 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2023-11-22 23:53:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_workqueue_key [2023-11-22 23:53:29,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_workqueue_key [2023-11-22 23:53:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-22 23:53:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-22 23:53:29,718 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-22 23:53:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-22 23:53:29,718 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-22 23:53:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-22 23:53:29,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-22 23:53:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2023-11-22 23:53:29,719 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2023-11-22 23:53:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-22 23:53:29,720 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-22 23:53:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-22 23:53:29,720 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-22 23:53:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2023-11-22 23:53:29,720 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2023-11-22 23:53:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-22 23:53:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_response_error [2023-11-22 23:53:29,720 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_response_error [2023-11-22 23:53:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2023-11-22 23:53:29,721 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2023-11-22 23:53:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_free_host [2023-11-22 23:53:29,721 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_free_host [2023-11-22 23:53:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-22 23:53:29,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-22 23:53:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_32 [2023-11-22 23:53:29,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_32 [2023-11-22 23:53:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-22 23:53:29,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-22 23:53:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-22 23:53:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_queue_poll_work [2023-11-22 23:53:29,723 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_queue_poll_work [2023-11-22 23:53:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2023-11-22 23:53:29,723 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2023-11-22 23:53:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-22 23:53:29,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-22 23:53:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-11-22 23:53:29,724 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-11-22 23:53:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2023-11-22 23:53:29,726 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2023-11-22 23:53:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 23:53:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_to_buffer [2023-11-22 23:53:29,727 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_to_buffer [2023-11-22 23:53:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_9 [2023-11-22 23:53:29,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_9 [2023-11-22 23:53:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-22 23:53:29,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-22 23:53:29,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-22 23:53:29,729 INFO L130 BoogieDeclarations]: Found specification of procedure __download_offload_pseudocode [2023-11-22 23:53:29,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __download_offload_pseudocode [2023-11-22 23:53:29,734 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-22 23:53:29,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-22 23:53:29,734 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2023-11-22 23:53:29,734 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2023-11-22 23:53:29,734 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2023-11-22 23:53:29,734 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2023-11-22 23:53:29,735 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_InterfaceNumber [2023-11-22 23:53:29,735 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_InterfaceNumber [2023-11-22 23:53:29,735 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-22 23:53:29,735 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-22 23:53:29,735 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-22 23:53:29,735 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-22 23:53:29,735 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2023-11-22 23:53:29,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2023-11-22 23:53:29,735 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2023-11-22 23:53:29,736 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2023-11-22 23:53:29,736 INFO L130 BoogieDeclarations]: Found specification of procedure new_system_port_status [2023-11-22 23:53:29,736 INFO L138 BoogieDeclarations]: Found implementation of procedure new_system_port_status [2023-11-22 23:53:29,736 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_request_done [2023-11-22 23:53:29,736 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_request_done [2023-11-22 23:53:29,736 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-22 23:53:29,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-22 23:53:29,736 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-22 23:53:29,736 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-22 23:53:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2023-11-22 23:53:29,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2023-11-22 23:53:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2023-11-22 23:53:29,737 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2023-11-22 23:53:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-11-22 23:53:29,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-11-22 23:53:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2023-11-22 23:53:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_47 [2023-11-22 23:53:29,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_47 [2023-11-22 23:53:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-11-22 23:53:29,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-11-22 23:53:29,738 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-22 23:53:29,738 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-22 23:53:29,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-22 23:53:29,738 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2023-11-22 23:53:29,738 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2023-11-22 23:53:29,738 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_priv [2023-11-22 23:53:29,738 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_priv [2023-11-22 23:53:29,738 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-11-22 23:53:29,739 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-11-22 23:53:29,739 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_deadwork_thread [2023-11-22 23:53:29,739 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_deadwork_thread [2023-11-22 23:53:29,739 INFO L130 BoogieDeclarations]: Found specification of procedure check_vub300_port_status [2023-11-22 23:53:29,739 INFO L138 BoogieDeclarations]: Found implementation of procedure check_vub300_port_status [2023-11-22 23:53:29,739 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-22 23:53:29,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 23:53:29,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 23:53:30,281 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 23:53:30,284 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 23:53:31,246 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-22 23:53:33,309 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 23:53:33,438 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 23:53:33,439 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-22 23:53:33,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:53:33 BoogieIcfgContainer [2023-11-22 23:53:33,440 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 23:53:33,442 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 23:53:33,442 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 23:53:33,444 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 23:53:33,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:53:27" (1/3) ... [2023-11-22 23:53:33,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c9842e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:53:33, skipping insertion in model container [2023-11-22 23:53:33,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:53:29" (2/3) ... [2023-11-22 23:53:33,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c9842e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:53:33, skipping insertion in model container [2023-11-22 23:53:33,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:53:33" (3/3) ... [2023-11-22 23:53:33,449 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2023-11-22 23:53:33,466 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 23:53:33,467 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 23:53:33,540 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 23:53:33,545 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;@287e2781, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 23:53:33,546 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 23:53:33,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 1758 states, 1246 states have (on average 1.5032102728731942) internal successors, (1873), 1311 states have internal predecessors, (1873), 414 states have call successors, (414), 97 states have call predecessors, (414), 96 states have return successors, (405), 379 states have call predecessors, (405), 405 states have call successors, (405) [2023-11-22 23:53:33,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-22 23:53:33,587 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:53:33,589 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-22 23:53:33,589 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:53:33,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:53:33,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1483601131, now seen corresponding path program 1 times [2023-11-22 23:53:33,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:53:33,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231886048] [2023-11-22 23:53:33,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:53:33,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:53:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:34,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:34,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:34,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:34,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:34,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:53:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:34,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:34,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:34,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:53:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:34,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:34,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:34,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:53:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:34,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:34,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:34,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:53:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:34,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:34,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:53:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:34,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:34,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:53:34,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:34,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-22 23:53:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:34,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:34,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-22 23:53:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:34,304 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-22 23:53:34,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:53:34,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231886048] [2023-11-22 23:53:34,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231886048] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:53:34,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:53:34,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 23:53:34,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846446602] [2023-11-22 23:53:34,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:53:34,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 23:53:34,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:53:34,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 23:53:34,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-22 23:53:34,339 INFO L87 Difference]: Start difference. First operand has 1758 states, 1246 states have (on average 1.5032102728731942) internal successors, (1873), 1311 states have internal predecessors, (1873), 414 states have call successors, (414), 97 states have call predecessors, (414), 96 states have return successors, (405), 379 states have call predecessors, (405), 405 states have call successors, (405) Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-22 23:53:38,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:53:38,876 INFO L93 Difference]: Finished difference Result 3716 states and 5837 transitions. [2023-11-22 23:53:38,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 23:53:38,878 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2023-11-22 23:53:38,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:53:38,911 INFO L225 Difference]: With dead ends: 3716 [2023-11-22 23:53:38,911 INFO L226 Difference]: Without dead ends: 1948 [2023-11-22 23:53:38,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-22 23:53:38,931 INFO L413 NwaCegarLoop]: 1908 mSDtfsCounter, 2558 mSDsluCounter, 1839 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 2185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2645 SdHoareTripleChecker+Valid, 3747 SdHoareTripleChecker+Invalid, 4251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2185 IncrementalHoareTripleChecker+Valid, 2066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-22 23:53:38,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2645 Valid, 3747 Invalid, 4251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2185 Valid, 2066 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-22 23:53:38,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2023-11-22 23:53:39,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1745. [2023-11-22 23:53:39,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1244 states have (on average 1.470257234726688) internal successors, (1829), 1298 states have internal predecessors, (1829), 405 states have call successors, (405), 96 states have call predecessors, (405), 95 states have return successors, (400), 374 states have call predecessors, (400), 400 states have call successors, (400) [2023-11-22 23:53:39,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2634 transitions. [2023-11-22 23:53:39,079 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2634 transitions. Word has length 114 [2023-11-22 23:53:39,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:53:39,079 INFO L495 AbstractCegarLoop]: Abstraction has 1745 states and 2634 transitions. [2023-11-22 23:53:39,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-22 23:53:39,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2634 transitions. [2023-11-22 23:53:39,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-22 23:53:39,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:53:39,086 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-22 23:53:39,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 23:53:39,087 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:53:39,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:53:39,088 INFO L85 PathProgramCache]: Analyzing trace with hash -728870413, now seen corresponding path program 1 times [2023-11-22 23:53:39,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:53:39,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535937193] [2023-11-22 23:53:39,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:53:39,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:53:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:39,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:39,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:39,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:39,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:53:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:39,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:39,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:39,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:53:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:39,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:39,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:39,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:39,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:53:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:39,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:39,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:39,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:53:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:39,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:39,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:39,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:53:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:39,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:39,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:53:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:39,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-22 23:53:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:39,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:39,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-22 23:53:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:39,682 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-22 23:53:39,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:53:39,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535937193] [2023-11-22 23:53:39,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535937193] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:53:39,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:53:39,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 23:53:39,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995222076] [2023-11-22 23:53:39,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:53:39,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 23:53:39,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:53:39,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 23:53:39,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 23:53:39,686 INFO L87 Difference]: Start difference. First operand 1745 states and 2634 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-22 23:53:51,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:53:51,163 INFO L93 Difference]: Finished difference Result 5604 states and 8977 transitions. [2023-11-22 23:53:51,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 23:53:51,163 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2023-11-22 23:53:51,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:53:51,182 INFO L225 Difference]: With dead ends: 5604 [2023-11-22 23:53:51,182 INFO L226 Difference]: Without dead ends: 3876 [2023-11-22 23:53:51,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-22 23:53:51,195 INFO L413 NwaCegarLoop]: 2175 mSDtfsCounter, 5130 mSDsluCounter, 5867 mSDsCounter, 0 mSdLazyCounter, 5385 mSolverCounterSat, 2734 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5413 SdHoareTripleChecker+Valid, 8042 SdHoareTripleChecker+Invalid, 8119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2734 IncrementalHoareTripleChecker+Valid, 5385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-11-22 23:53:51,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5413 Valid, 8042 Invalid, 8119 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2734 Valid, 5385 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2023-11-22 23:53:51,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3876 states. [2023-11-22 23:53:51,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3876 to 3561. [2023-11-22 23:53:51,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3561 states, 2528 states have (on average 1.4643987341772151) internal successors, (3702), 2646 states have internal predecessors, (3702), 814 states have call successors, (814), 190 states have call predecessors, (814), 218 states have return successors, (1028), 780 states have call predecessors, (1028), 809 states have call successors, (1028) [2023-11-22 23:53:51,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3561 states to 3561 states and 5544 transitions. [2023-11-22 23:53:51,322 INFO L78 Accepts]: Start accepts. Automaton has 3561 states and 5544 transitions. Word has length 114 [2023-11-22 23:53:51,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:53:51,325 INFO L495 AbstractCegarLoop]: Abstraction has 3561 states and 5544 transitions. [2023-11-22 23:53:51,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-22 23:53:51,325 INFO L276 IsEmpty]: Start isEmpty. Operand 3561 states and 5544 transitions. [2023-11-22 23:53:51,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-22 23:53:51,331 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:53:51,332 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-22 23:53:51,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-22 23:53:51,335 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:53:51,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:53:51,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1120734481, now seen corresponding path program 1 times [2023-11-22 23:53:51,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:53:51,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518141318] [2023-11-22 23:53:51,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:53:51,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:53:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:51,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:51,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:51,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:51,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:53:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:51,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:51,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:51,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:53:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:51,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:51,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:51,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:53:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:51,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:51,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:53:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:51,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:53:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:51,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:51,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:53:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:51,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:51,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:53:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:51,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-22 23:53:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:51,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:53:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:51,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-22 23:53:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:53:51,808 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-22 23:53:51,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:53:51,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518141318] [2023-11-22 23:53:51,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518141318] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:53:51,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:53:51,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 23:53:51,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782393328] [2023-11-22 23:53:51,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:53:51,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 23:53:51,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:53:51,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 23:53:51,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 23:53:51,812 INFO L87 Difference]: Start difference. First operand 3561 states and 5544 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-22 23:54:01,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:54:01,808 INFO L93 Difference]: Finished difference Result 11252 states and 18793 transitions. [2023-11-22 23:54:01,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 23:54:01,810 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2023-11-22 23:54:01,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:54:01,855 INFO L225 Difference]: With dead ends: 11252 [2023-11-22 23:54:01,855 INFO L226 Difference]: Without dead ends: 7708 [2023-11-22 23:54:01,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-22 23:54:01,876 INFO L413 NwaCegarLoop]: 2215 mSDtfsCounter, 5096 mSDsluCounter, 5856 mSDsCounter, 0 mSdLazyCounter, 5457 mSolverCounterSat, 2727 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5385 SdHoareTripleChecker+Valid, 8071 SdHoareTripleChecker+Invalid, 8184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2727 IncrementalHoareTripleChecker+Valid, 5457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-11-22 23:54:01,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5385 Valid, 8071 Invalid, 8184 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2727 Valid, 5457 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2023-11-22 23:54:01,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7708 states. [2023-11-22 23:54:02,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7708 to 7144. [2023-11-22 23:54:02,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7144 states, 5068 states have (on average 1.4619179163378058) internal successors, (7409), 5309 states have internal predecessors, (7409), 1624 states have call successors, (1624), 378 states have call predecessors, (1624), 451 states have return successors, (2470), 1572 states have call predecessors, (2470), 1619 states have call successors, (2470) [2023-11-22 23:54:02,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7144 states to 7144 states and 11503 transitions. [2023-11-22 23:54:02,213 INFO L78 Accepts]: Start accepts. Automaton has 7144 states and 11503 transitions. Word has length 115 [2023-11-22 23:54:02,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:54:02,214 INFO L495 AbstractCegarLoop]: Abstraction has 7144 states and 11503 transitions. [2023-11-22 23:54:02,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-22 23:54:02,214 INFO L276 IsEmpty]: Start isEmpty. Operand 7144 states and 11503 transitions. [2023-11-22 23:54:02,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-22 23:54:02,217 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:54:02,217 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-22 23:54:02,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-22 23:54:02,218 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:54:02,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:54:02,218 INFO L85 PathProgramCache]: Analyzing trace with hash -383613834, now seen corresponding path program 1 times [2023-11-22 23:54:02,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:54:02,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825712072] [2023-11-22 23:54:02,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:54:02,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:54:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:02,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:02,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:02,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:02,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:54:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:02,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:02,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:02,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:54:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:02,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:02,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:02,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:54:02,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:02,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:02,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:02,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:54:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:02,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:02,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:54:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:02,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:02,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:54:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:02,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-22 23:54:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:02,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:02,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-22 23:54:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:02,457 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-22 23:54:02,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:54:02,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825712072] [2023-11-22 23:54:02,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825712072] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:54:02,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:54:02,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 23:54:02,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858660400] [2023-11-22 23:54:02,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:54:02,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 23:54:02,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:54:02,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 23:54:02,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 23:54:02,460 INFO L87 Difference]: Start difference. First operand 7144 states and 11503 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-22 23:54:11,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:54:11,034 INFO L93 Difference]: Finished difference Result 7706 states and 12663 transitions. [2023-11-22 23:54:11,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 23:54:11,035 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2023-11-22 23:54:11,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:54:11,073 INFO L225 Difference]: With dead ends: 7706 [2023-11-22 23:54:11,073 INFO L226 Difference]: Without dead ends: 7703 [2023-11-22 23:54:11,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-22 23:54:11,079 INFO L413 NwaCegarLoop]: 2193 mSDtfsCounter, 6064 mSDsluCounter, 4786 mSDsCounter, 0 mSdLazyCounter, 4379 mSolverCounterSat, 3667 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6352 SdHoareTripleChecker+Valid, 6979 SdHoareTripleChecker+Invalid, 8046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3667 IncrementalHoareTripleChecker+Valid, 4379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-22 23:54:11,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6352 Valid, 6979 Invalid, 8046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3667 Valid, 4379 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2023-11-22 23:54:11,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7703 states. [2023-11-22 23:54:11,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7703 to 7145. [2023-11-22 23:54:11,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7145 states, 5069 states have (on average 1.4618267902939435) internal successors, (7410), 5310 states have internal predecessors, (7410), 1624 states have call successors, (1624), 378 states have call predecessors, (1624), 451 states have return successors, (2470), 1572 states have call predecessors, (2470), 1619 states have call successors, (2470) [2023-11-22 23:54:11,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7145 states to 7145 states and 11504 transitions. [2023-11-22 23:54:11,407 INFO L78 Accepts]: Start accepts. Automaton has 7145 states and 11504 transitions. Word has length 116 [2023-11-22 23:54:11,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:54:11,407 INFO L495 AbstractCegarLoop]: Abstraction has 7145 states and 11504 transitions. [2023-11-22 23:54:11,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-22 23:54:11,408 INFO L276 IsEmpty]: Start isEmpty. Operand 7145 states and 11504 transitions. [2023-11-22 23:54:11,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-22 23:54:11,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:54:11,411 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-22 23:54:11,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-22 23:54:11,411 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:54:11,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:54:11,412 INFO L85 PathProgramCache]: Analyzing trace with hash 992294610, now seen corresponding path program 1 times [2023-11-22 23:54:11,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:54:11,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817980880] [2023-11-22 23:54:11,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:54:11,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:54:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:11,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:11,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:11,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:11,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:54:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:11,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:11,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:11,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:54:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:11,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:11,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:11,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:54:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:11,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:11,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:11,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:54:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:11,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:11,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:54:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:11,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:11,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:54:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:11,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-22 23:54:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:11,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:11,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-22 23:54:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:11,641 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-22 23:54:11,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:54:11,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817980880] [2023-11-22 23:54:11,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817980880] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:54:11,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:54:11,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 23:54:11,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023056045] [2023-11-22 23:54:11,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:54:11,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 23:54:11,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:54:11,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 23:54:11,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 23:54:11,643 INFO L87 Difference]: Start difference. First operand 7145 states and 11504 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-22 23:54:17,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:54:17,093 INFO L93 Difference]: Finished difference Result 7702 states and 12659 transitions. [2023-11-22 23:54:17,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 23:54:17,100 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2023-11-22 23:54:17,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:54:17,148 INFO L225 Difference]: With dead ends: 7702 [2023-11-22 23:54:17,148 INFO L226 Difference]: Without dead ends: 7699 [2023-11-22 23:54:17,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-22 23:54:17,153 INFO L413 NwaCegarLoop]: 1890 mSDtfsCounter, 4144 mSDsluCounter, 2660 mSDsCounter, 0 mSdLazyCounter, 2966 mSolverCounterSat, 2065 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4409 SdHoareTripleChecker+Valid, 4550 SdHoareTripleChecker+Invalid, 5031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2065 IncrementalHoareTripleChecker+Valid, 2966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-22 23:54:17,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4409 Valid, 4550 Invalid, 5031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2065 Valid, 2966 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-22 23:54:17,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7699 states. [2023-11-22 23:54:17,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7699 to 7144. [2023-11-22 23:54:17,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7144 states, 5069 states have (on average 1.4616295127244032) internal successors, (7409), 5309 states have internal predecessors, (7409), 1623 states have call successors, (1623), 378 states have call predecessors, (1623), 451 states have return successors, (2470), 1572 states have call predecessors, (2470), 1619 states have call successors, (2470) [2023-11-22 23:54:17,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7144 states to 7144 states and 11502 transitions. [2023-11-22 23:54:17,423 INFO L78 Accepts]: Start accepts. Automaton has 7144 states and 11502 transitions. Word has length 117 [2023-11-22 23:54:17,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:54:17,425 INFO L495 AbstractCegarLoop]: Abstraction has 7144 states and 11502 transitions. [2023-11-22 23:54:17,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-22 23:54:17,425 INFO L276 IsEmpty]: Start isEmpty. Operand 7144 states and 11502 transitions. [2023-11-22 23:54:17,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-22 23:54:17,428 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:54:17,428 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-22 23:54:17,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-22 23:54:17,428 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:54:17,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:54:17,429 INFO L85 PathProgramCache]: Analyzing trace with hash 695788281, now seen corresponding path program 1 times [2023-11-22 23:54:17,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:54:17,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190710010] [2023-11-22 23:54:17,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:54:17,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:54:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:17,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:17,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:17,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:17,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:54:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:17,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:17,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:17,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:54:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:17,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:17,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:17,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:54:17,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:17,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:17,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:17,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:54:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:17,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:17,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:54:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:17,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:17,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:54:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:17,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-22 23:54:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:17,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:17,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:17,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-22 23:54:17,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:17,664 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-22 23:54:17,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:54:17,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190710010] [2023-11-22 23:54:17,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190710010] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:54:17,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:54:17,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 23:54:17,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028025090] [2023-11-22 23:54:17,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:54:17,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 23:54:17,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:54:17,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 23:54:17,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 23:54:17,666 INFO L87 Difference]: Start difference. First operand 7144 states and 11502 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-22 23:54:22,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:54:22,401 INFO L93 Difference]: Finished difference Result 7701 states and 12657 transitions. [2023-11-22 23:54:22,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 23:54:22,405 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2023-11-22 23:54:22,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:54:22,435 INFO L225 Difference]: With dead ends: 7701 [2023-11-22 23:54:22,436 INFO L226 Difference]: Without dead ends: 7672 [2023-11-22 23:54:22,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-22 23:54:22,444 INFO L413 NwaCegarLoop]: 1881 mSDtfsCounter, 4226 mSDsluCounter, 2035 mSDsCounter, 0 mSdLazyCounter, 2371 mSolverCounterSat, 2113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4493 SdHoareTripleChecker+Valid, 3916 SdHoareTripleChecker+Invalid, 4484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2113 IncrementalHoareTripleChecker+Valid, 2371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-22 23:54:22,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4493 Valid, 3916 Invalid, 4484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2113 Valid, 2371 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-22 23:54:22,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7672 states. [2023-11-22 23:54:22,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7672 to 7117. [2023-11-22 23:54:22,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7117 states, 5056 states have (on average 1.4620253164556962) internal successors, (7392), 5295 states have internal predecessors, (7392), 1610 states have call successors, (1610), 377 states have call predecessors, (1610), 450 states have return successors, (2434), 1560 states have call predecessors, (2434), 1607 states have call successors, (2434) [2023-11-22 23:54:22,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7117 states to 7117 states and 11436 transitions. [2023-11-22 23:54:22,768 INFO L78 Accepts]: Start accepts. Automaton has 7117 states and 11436 transitions. Word has length 118 [2023-11-22 23:54:22,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:54:22,769 INFO L495 AbstractCegarLoop]: Abstraction has 7117 states and 11436 transitions. [2023-11-22 23:54:22,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-22 23:54:22,769 INFO L276 IsEmpty]: Start isEmpty. Operand 7117 states and 11436 transitions. [2023-11-22 23:54:22,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-11-22 23:54:22,784 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:54:22,784 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 23:54:22,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-22 23:54:22,784 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:54:22,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:54:22,785 INFO L85 PathProgramCache]: Analyzing trace with hash 959794473, now seen corresponding path program 1 times [2023-11-22 23:54:22,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:54:22,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117371868] [2023-11-22 23:54:22,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:54:22,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:54:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:54:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:54:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:54:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:22,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:54:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:54:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-22 23:54:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-22 23:54:22,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-22 23:54:22,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 23:54:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 23:54:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-22 23:54:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-22 23:54:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:54:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 23:54:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-22 23:54:23,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-22 23:54:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-22 23:54:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,028 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-11-22 23:54:23,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:54:23,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117371868] [2023-11-22 23:54:23,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117371868] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:54:23,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:54:23,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-22 23:54:23,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067120844] [2023-11-22 23:54:23,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:54:23,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 23:54:23,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:54:23,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 23:54:23,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-22 23:54:23,031 INFO L87 Difference]: Start difference. First operand 7117 states and 11436 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-22 23:54:32,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:54:32,181 INFO L93 Difference]: Finished difference Result 21645 states and 35190 transitions. [2023-11-22 23:54:32,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-22 23:54:32,181 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 175 [2023-11-22 23:54:32,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:54:32,234 INFO L225 Difference]: With dead ends: 21645 [2023-11-22 23:54:32,234 INFO L226 Difference]: Without dead ends: 14545 [2023-11-22 23:54:32,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-11-22 23:54:32,262 INFO L413 NwaCegarLoop]: 1853 mSDtfsCounter, 7628 mSDsluCounter, 4266 mSDsCounter, 0 mSdLazyCounter, 4295 mSolverCounterSat, 4858 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7967 SdHoareTripleChecker+Valid, 6119 SdHoareTripleChecker+Invalid, 9153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4858 IncrementalHoareTripleChecker+Valid, 4295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-11-22 23:54:32,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7967 Valid, 6119 Invalid, 9153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4858 Valid, 4295 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-11-22 23:54:32,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14545 states. [2023-11-22 23:54:32,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14545 to 13530. [2023-11-22 23:54:32,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13530 states, 9519 states have (on average 1.4607626851560038) internal successors, (13905), 10005 states have internal predecessors, (13905), 3022 states have call successors, (3022), 713 states have call predecessors, (3022), 988 states have return successors, (4914), 3079 states have call predecessors, (4914), 3019 states have call successors, (4914) [2023-11-22 23:54:32,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13530 states to 13530 states and 21841 transitions. [2023-11-22 23:54:32,964 INFO L78 Accepts]: Start accepts. Automaton has 13530 states and 21841 transitions. Word has length 175 [2023-11-22 23:54:32,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:54:32,965 INFO L495 AbstractCegarLoop]: Abstraction has 13530 states and 21841 transitions. [2023-11-22 23:54:32,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-22 23:54:32,965 INFO L276 IsEmpty]: Start isEmpty. Operand 13530 states and 21841 transitions. [2023-11-22 23:54:33,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-11-22 23:54:33,007 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:54:33,007 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-22 23:54:33,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-22 23:54:33,007 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:54:33,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:54:33,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1728045944, now seen corresponding path program 1 times [2023-11-22 23:54:33,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:54:33,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835976196] [2023-11-22 23:54:33,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:54:33,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:54:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:54:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:33,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:54:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:54:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:33,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:54:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:54:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:33,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:54:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-22 23:54:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:33,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-22 23:54:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:54:33,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:33,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-22 23:54:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:33,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-22 23:54:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 23:54:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-22 23:54:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-11-22 23:54:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-22 23:54:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-22 23:54:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-11-22 23:54:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:54:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-22 23:54:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 23:54:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-11-22 23:54:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-11-22 23:54:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:33,407 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2023-11-22 23:54:33,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:54:33,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835976196] [2023-11-22 23:54:33,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835976196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:54:33,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:54:33,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-22 23:54:33,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849131328] [2023-11-22 23:54:33,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:54:33,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-22 23:54:33,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:54:33,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-22 23:54:33,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-22 23:54:33,410 INFO L87 Difference]: Start difference. First operand 13530 states and 21841 transitions. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (29), 7 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-22 23:54:43,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:54:43,576 INFO L93 Difference]: Finished difference Result 31113 states and 51065 transitions. [2023-11-22 23:54:43,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-22 23:54:43,577 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (29), 7 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 242 [2023-11-22 23:54:43,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:54:43,650 INFO L225 Difference]: With dead ends: 31113 [2023-11-22 23:54:43,651 INFO L226 Difference]: Without dead ends: 17600 [2023-11-22 23:54:43,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2023-11-22 23:54:43,689 INFO L413 NwaCegarLoop]: 2132 mSDtfsCounter, 5218 mSDsluCounter, 7421 mSDsCounter, 0 mSdLazyCounter, 6220 mSolverCounterSat, 2878 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5531 SdHoareTripleChecker+Valid, 9553 SdHoareTripleChecker+Invalid, 9098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2878 IncrementalHoareTripleChecker+Valid, 6220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-11-22 23:54:43,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5531 Valid, 9553 Invalid, 9098 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2878 Valid, 6220 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2023-11-22 23:54:43,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17600 states. [2023-11-22 23:54:44,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17600 to 13544. [2023-11-22 23:54:44,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13544 states, 9533 states have (on average 1.4600860169936012) internal successors, (13919), 10019 states have internal predecessors, (13919), 3022 states have call successors, (3022), 713 states have call predecessors, (3022), 988 states have return successors, (4914), 3079 states have call predecessors, (4914), 3019 states have call successors, (4914) [2023-11-22 23:54:44,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13544 states to 13544 states and 21855 transitions. [2023-11-22 23:54:44,432 INFO L78 Accepts]: Start accepts. Automaton has 13544 states and 21855 transitions. Word has length 242 [2023-11-22 23:54:44,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:54:44,435 INFO L495 AbstractCegarLoop]: Abstraction has 13544 states and 21855 transitions. [2023-11-22 23:54:44,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (29), 7 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-22 23:54:44,436 INFO L276 IsEmpty]: Start isEmpty. Operand 13544 states and 21855 transitions. [2023-11-22 23:54:44,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-11-22 23:54:44,465 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:54:44,465 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-22 23:54:44,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-22 23:54:44,466 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:54:44,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:54:44,466 INFO L85 PathProgramCache]: Analyzing trace with hash 936598106, now seen corresponding path program 1 times [2023-11-22 23:54:44,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:54:44,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87721870] [2023-11-22 23:54:44,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:54:44,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:54:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:54:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:54:44,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:44,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:44,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:54:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:44,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:54:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:54:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:54:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-22 23:54:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-22 23:54:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:54:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-22 23:54:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 23:54:44,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 23:54:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-22 23:54:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-22 23:54:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-22 23:54:44,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-22 23:54:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-11-22 23:54:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-22 23:54:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:54:44,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-22 23:54:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-11-22 23:54:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 23:54:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:44,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-11-22 23:54:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:44,887 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2023-11-22 23:54:44,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:54:44,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87721870] [2023-11-22 23:54:44,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87721870] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:54:44,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:54:44,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-22 23:54:44,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251986906] [2023-11-22 23:54:44,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:54:44,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 23:54:44,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:54:44,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 23:54:44,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-22 23:54:44,890 INFO L87 Difference]: Start difference. First operand 13544 states and 21855 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (30), 7 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-22 23:54:57,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:54:57,446 INFO L93 Difference]: Finished difference Result 41970 states and 68256 transitions. [2023-11-22 23:54:57,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-22 23:54:57,447 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (30), 7 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 256 [2023-11-22 23:54:57,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:54:57,564 INFO L225 Difference]: With dead ends: 41970 [2023-11-22 23:54:57,564 INFO L226 Difference]: Without dead ends: 28404 [2023-11-22 23:54:57,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-11-22 23:54:57,612 INFO L413 NwaCegarLoop]: 3148 mSDtfsCounter, 4507 mSDsluCounter, 7571 mSDsCounter, 0 mSdLazyCounter, 7280 mSolverCounterSat, 2635 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4884 SdHoareTripleChecker+Valid, 10719 SdHoareTripleChecker+Invalid, 9915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2635 IncrementalHoareTripleChecker+Valid, 7280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2023-11-22 23:54:57,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4884 Valid, 10719 Invalid, 9915 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2635 Valid, 7280 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2023-11-22 23:54:57,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28404 states. [2023-11-22 23:54:58,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28404 to 26438. [2023-11-22 23:54:58,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26438 states, 18692 states have (on average 1.4629788144660818) internal successors, (27346), 19630 states have internal predecessors, (27346), 5814 states have call successors, (5814), 1392 states have call predecessors, (5814), 1931 states have return successors, (9441), 5913 states have call predecessors, (9441), 5811 states have call successors, (9441) [2023-11-22 23:54:58,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26438 states to 26438 states and 42601 transitions. [2023-11-22 23:54:58,924 INFO L78 Accepts]: Start accepts. Automaton has 26438 states and 42601 transitions. Word has length 256 [2023-11-22 23:54:58,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:54:58,924 INFO L495 AbstractCegarLoop]: Abstraction has 26438 states and 42601 transitions. [2023-11-22 23:54:58,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (30), 7 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-22 23:54:58,925 INFO L276 IsEmpty]: Start isEmpty. Operand 26438 states and 42601 transitions. [2023-11-22 23:54:58,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-11-22 23:54:58,966 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:54:58,967 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-22 23:54:58,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-22 23:54:58,967 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:54:58,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:54:58,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1318170147, now seen corresponding path program 1 times [2023-11-22 23:54:58,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:54:58,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926385722] [2023-11-22 23:54:58,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:54:58,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:54:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:54:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:54:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:54:59,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:54:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:59,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:54:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-22 23:54:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:54:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:59,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 23:54:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 23:54:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-22 23:54:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:54:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-22 23:54:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 23:54:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 23:54:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:54:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:54:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:54:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-22 23:54:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-22 23:54:59,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-22 23:54:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:54:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:54:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-11-22 23:54:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-22 23:54:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-22 23:54:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:59,680 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-11-22 23:54:59,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:54:59,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926385722] [2023-11-22 23:54:59,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926385722] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:54:59,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:54:59,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-22 23:54:59,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530741867] [2023-11-22 23:54:59,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:54:59,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-22 23:54:59,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:54:59,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-22 23:54:59,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-22 23:54:59,682 INFO L87 Difference]: Start difference. First operand 26438 states and 42601 transitions. Second operand has 13 states, 13 states have (on average 10.76923076923077) internal successors, (140), 4 states have internal predecessors, (140), 2 states have call successors, (37), 11 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-11-22 23:55:12,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:55:12,302 INFO L93 Difference]: Finished difference Result 59305 states and 99210 transitions. [2023-11-22 23:55:12,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-22 23:55:12,303 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.76923076923077) internal successors, (140), 4 states have internal predecessors, (140), 2 states have call successors, (37), 11 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 261 [2023-11-22 23:55:12,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:55:12,464 INFO L225 Difference]: With dead ends: 59305 [2023-11-22 23:55:12,464 INFO L226 Difference]: Without dead ends: 32892 [2023-11-22 23:55:12,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-11-22 23:55:12,570 INFO L413 NwaCegarLoop]: 1729 mSDtfsCounter, 1578 mSDsluCounter, 8279 mSDsCounter, 0 mSdLazyCounter, 7717 mSolverCounterSat, 857 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1807 SdHoareTripleChecker+Valid, 10008 SdHoareTripleChecker+Invalid, 8574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 857 IncrementalHoareTripleChecker+Valid, 7717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-11-22 23:55:12,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1807 Valid, 10008 Invalid, 8574 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [857 Valid, 7717 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2023-11-22 23:55:12,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32892 states. [2023-11-22 23:55:14,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32892 to 30270. [2023-11-22 23:55:14,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30270 states, 21332 states have (on average 1.4604350271891993) internal successors, (31154), 22462 states have internal predecessors, (31154), 6814 states have call successors, (6814), 1392 states have call predecessors, (6814), 2123 states have return successors, (11661), 7041 states have call predecessors, (11661), 6811 states have call successors, (11661) [2023-11-22 23:55:14,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30270 states to 30270 states and 49629 transitions. [2023-11-22 23:55:14,661 INFO L78 Accepts]: Start accepts. Automaton has 30270 states and 49629 transitions. Word has length 261 [2023-11-22 23:55:14,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:55:14,661 INFO L495 AbstractCegarLoop]: Abstraction has 30270 states and 49629 transitions. [2023-11-22 23:55:14,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.76923076923077) internal successors, (140), 4 states have internal predecessors, (140), 2 states have call successors, (37), 11 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-11-22 23:55:14,662 INFO L276 IsEmpty]: Start isEmpty. Operand 30270 states and 49629 transitions. [2023-11-22 23:55:14,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-11-22 23:55:14,699 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:55:14,699 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-22 23:55:14,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-22 23:55:14,699 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:55:14,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:55:14,700 INFO L85 PathProgramCache]: Analyzing trace with hash 984775732, now seen corresponding path program 1 times [2023-11-22 23:55:14,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:55:14,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956717756] [2023-11-22 23:55:14,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:14,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:55:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:15,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:55:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:15,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:55:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:55:15,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:55:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:55:15,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-22 23:55:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:55:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 23:55:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 23:55:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-22 23:55:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:55:15,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-22 23:55:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 23:55:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 23:55:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:55:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:55:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:55:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-22 23:55:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-22 23:55:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-22 23:55:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:15,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:55:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:55:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-11-22 23:55:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-22 23:55:15,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-11-22 23:55:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:15,471 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-11-22 23:55:15,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:55:15,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956717756] [2023-11-22 23:55:15,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956717756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:55:15,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:55:15,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-22 23:55:15,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066198761] [2023-11-22 23:55:15,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:55:15,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-22 23:55:15,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:55:15,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-22 23:55:15,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-11-22 23:55:15,474 INFO L87 Difference]: Start difference. First operand 30270 states and 49629 transitions. Second operand has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (37), 11 states have call predecessors, (37), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2023-11-22 23:55:25,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:55:25,713 INFO L93 Difference]: Finished difference Result 63265 states and 107502 transitions. [2023-11-22 23:55:25,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-22 23:55:25,714 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (37), 11 states have call predecessors, (37), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) Word has length 259 [2023-11-22 23:55:25,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:55:25,834 INFO L225 Difference]: With dead ends: 63265 [2023-11-22 23:55:25,834 INFO L226 Difference]: Without dead ends: 33020 [2023-11-22 23:55:25,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2023-11-22 23:55:25,931 INFO L413 NwaCegarLoop]: 1734 mSDtfsCounter, 2610 mSDsluCounter, 8261 mSDsCounter, 0 mSdLazyCounter, 7060 mSolverCounterSat, 2048 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2837 SdHoareTripleChecker+Valid, 9995 SdHoareTripleChecker+Invalid, 9108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2048 IncrementalHoareTripleChecker+Valid, 7060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-11-22 23:55:25,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2837 Valid, 9995 Invalid, 9108 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2048 Valid, 7060 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2023-11-22 23:55:25,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33020 states. [2023-11-22 23:55:27,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33020 to 30390. [2023-11-22 23:55:27,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30390 states, 21416 states have (on average 1.458629062383265) internal successors, (31238), 22558 states have internal predecessors, (31238), 6814 states have call successors, (6814), 1392 states have call predecessors, (6814), 2159 states have return successors, (11789), 7065 states have call predecessors, (11789), 6811 states have call successors, (11789) [2023-11-22 23:55:27,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30390 states to 30390 states and 49841 transitions. [2023-11-22 23:55:27,979 INFO L78 Accepts]: Start accepts. Automaton has 30390 states and 49841 transitions. Word has length 259 [2023-11-22 23:55:27,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:55:27,980 INFO L495 AbstractCegarLoop]: Abstraction has 30390 states and 49841 transitions. [2023-11-22 23:55:27,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (37), 11 states have call predecessors, (37), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2023-11-22 23:55:27,980 INFO L276 IsEmpty]: Start isEmpty. Operand 30390 states and 49841 transitions. [2023-11-22 23:55:28,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-11-22 23:55:28,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:55:28,025 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-22 23:55:28,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-22 23:55:28,026 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:55:28,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:55:28,026 INFO L85 PathProgramCache]: Analyzing trace with hash 2056221615, now seen corresponding path program 1 times [2023-11-22 23:55:28,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:55:28,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671349793] [2023-11-22 23:55:28,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:28,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:55:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:55:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:28,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:55:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:55:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:55:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:55:28,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 23:55:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:55:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 23:55:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 23:55:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-22 23:55:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:55:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:29,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-22 23:55:29,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 23:55:29,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 23:55:29,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:29,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:55:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:55:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:55:29,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-22 23:55:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-22 23:55:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-22 23:55:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:55:29,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:55:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 23:55:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-22 23:55:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-22 23:55:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:29,669 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-11-22 23:55:29,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:55:29,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671349793] [2023-11-22 23:55:29,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671349793] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:55:29,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315599525] [2023-11-22 23:55:29,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:29,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:55:29,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:55:29,672 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 23:55:29,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-22 23:55:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:30,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 2847 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-22 23:55:30,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:55:30,554 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-22 23:55:30,554 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 23:55:30,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315599525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:55:30,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 23:55:30,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 15 [2023-11-22 23:55:30,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725017131] [2023-11-22 23:55:30,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:55:30,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 23:55:30,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:55:30,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 23:55:30,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2023-11-22 23:55:30,557 INFO L87 Difference]: Start difference. First operand 30390 states and 49841 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-11-22 23:55:32,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:55:32,694 INFO L93 Difference]: Finished difference Result 60723 states and 99511 transitions. [2023-11-22 23:55:32,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 23:55:32,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 260 [2023-11-22 23:55:32,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:55:32,861 INFO L225 Difference]: With dead ends: 60723 [2023-11-22 23:55:32,861 INFO L226 Difference]: Without dead ends: 30358 [2023-11-22 23:55:32,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2023-11-22 23:55:32,979 INFO L413 NwaCegarLoop]: 2490 mSDtfsCounter, 2613 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2613 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-22 23:55:32,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2613 Valid, 2490 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-22 23:55:33,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30358 states. [2023-11-22 23:55:35,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30358 to 30358. [2023-11-22 23:55:35,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30358 states, 21400 states have (on average 1.4582242990654206) internal successors, (31206), 22542 states have internal predecessors, (31206), 6798 states have call successors, (6798), 1392 states have call predecessors, (6798), 2159 states have return successors, (11681), 7049 states have call predecessors, (11681), 6795 states have call successors, (11681) [2023-11-22 23:55:35,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30358 states to 30358 states and 49685 transitions. [2023-11-22 23:55:35,396 INFO L78 Accepts]: Start accepts. Automaton has 30358 states and 49685 transitions. Word has length 260 [2023-11-22 23:55:35,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:55:35,396 INFO L495 AbstractCegarLoop]: Abstraction has 30358 states and 49685 transitions. [2023-11-22 23:55:35,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-11-22 23:55:35,397 INFO L276 IsEmpty]: Start isEmpty. Operand 30358 states and 49685 transitions. [2023-11-22 23:55:35,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-11-22 23:55:35,441 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:55:35,441 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-22 23:55:35,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-22 23:55:35,656 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,SelfDestructingSolverStorable11 [2023-11-22 23:55:35,657 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:55:35,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:55:35,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1707519459, now seen corresponding path program 1 times [2023-11-22 23:55:35,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:55:35,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803642667] [2023-11-22 23:55:35,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:35,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:55:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:55:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:55:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:55:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:55:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:55:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-22 23:55:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:55:36,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 23:55:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 23:55:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-22 23:55:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:55:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-22 23:55:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 23:55:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:36,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 23:55:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:37,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:37,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:37,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:37,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:55:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:37,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:55:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:37,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:55:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:37,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-22 23:55:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:37,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-22 23:55:37,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:37,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-22 23:55:37,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:37,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:37,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:37,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:37,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:55:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:37,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:55:37,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:37,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-11-22 23:55:37,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:37,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-22 23:55:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:37,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:37,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-22 23:55:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:37,206 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-11-22 23:55:37,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:55:37,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803642667] [2023-11-22 23:55:37,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803642667] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:55:37,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871787069] [2023-11-22 23:55:37,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:37,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:55:37,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:55:37,208 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 23:55:37,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-22 23:55:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:38,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 2849 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-22 23:55:38,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:55:38,119 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-22 23:55:38,120 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 23:55:38,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871787069] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:55:38,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 23:55:38,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 15 [2023-11-22 23:55:38,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637605618] [2023-11-22 23:55:38,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:55:38,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 23:55:38,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:55:38,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 23:55:38,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2023-11-22 23:55:38,122 INFO L87 Difference]: Start difference. First operand 30358 states and 49685 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-11-22 23:55:40,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:55:40,198 INFO L93 Difference]: Finished difference Result 60659 states and 99199 transitions. [2023-11-22 23:55:40,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 23:55:40,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 261 [2023-11-22 23:55:40,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:55:40,337 INFO L225 Difference]: With dead ends: 60659 [2023-11-22 23:55:40,338 INFO L226 Difference]: Without dead ends: 30326 [2023-11-22 23:55:40,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2023-11-22 23:55:40,437 INFO L413 NwaCegarLoop]: 2486 mSDtfsCounter, 2608 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2608 SdHoareTripleChecker+Valid, 2486 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-22 23:55:40,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2608 Valid, 2486 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-22 23:55:40,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30326 states. [2023-11-22 23:55:42,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30326 to 30326. [2023-11-22 23:55:42,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30326 states, 21384 states have (on average 1.4578189300411524) internal successors, (31174), 22526 states have internal predecessors, (31174), 6782 states have call successors, (6782), 1392 states have call predecessors, (6782), 2159 states have return successors, (11573), 7033 states have call predecessors, (11573), 6779 states have call successors, (11573) [2023-11-22 23:55:42,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30326 states to 30326 states and 49529 transitions. [2023-11-22 23:55:42,687 INFO L78 Accepts]: Start accepts. Automaton has 30326 states and 49529 transitions. Word has length 261 [2023-11-22 23:55:42,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:55:42,688 INFO L495 AbstractCegarLoop]: Abstraction has 30326 states and 49529 transitions. [2023-11-22 23:55:42,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-11-22 23:55:42,688 INFO L276 IsEmpty]: Start isEmpty. Operand 30326 states and 49529 transitions. [2023-11-22 23:55:42,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-11-22 23:55:42,732 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:55:42,732 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-22 23:55:42,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-22 23:55:42,956 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,SelfDestructingSolverStorable12 [2023-11-22 23:55:42,956 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:55:42,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:55:42,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1448614174, now seen corresponding path program 1 times [2023-11-22 23:55:42,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:55:42,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802412386] [2023-11-22 23:55:42,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:42,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:55:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:43,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:43,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:43,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:43,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:55:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:43,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:43,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:43,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:43,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:55:43,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:43,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:43,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:43,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:55:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:43,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:43,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:43,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:55:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:43,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:43,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:43,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:55:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:43,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:43,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:55:43,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:55:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 23:55:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 23:55:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-22 23:55:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:55:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-22 23:55:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 23:55:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 23:55:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:55:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:55:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:55:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-22 23:55:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-22 23:55:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-22 23:55:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:55:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:55:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-11-22 23:55:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-11-22 23:55:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-11-22 23:55:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:44,426 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-11-22 23:55:44,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:55:44,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802412386] [2023-11-22 23:55:44,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802412386] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:55:44,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356887645] [2023-11-22 23:55:44,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:44,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:55:44,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:55:44,428 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 23:55:44,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-22 23:55:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 2843 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-22 23:55:45,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:55:45,271 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-22 23:55:45,272 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 23:55:45,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356887645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:55:45,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 23:55:45,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 15 [2023-11-22 23:55:45,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353732342] [2023-11-22 23:55:45,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:55:45,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 23:55:45,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:55:45,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 23:55:45,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2023-11-22 23:55:45,275 INFO L87 Difference]: Start difference. First operand 30326 states and 49529 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-11-22 23:55:47,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:55:47,343 INFO L93 Difference]: Finished difference Result 60595 states and 98887 transitions. [2023-11-22 23:55:47,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 23:55:47,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 258 [2023-11-22 23:55:47,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:55:47,466 INFO L225 Difference]: With dead ends: 60595 [2023-11-22 23:55:47,466 INFO L226 Difference]: Without dead ends: 30294 [2023-11-22 23:55:47,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2023-11-22 23:55:47,548 INFO L413 NwaCegarLoop]: 2482 mSDtfsCounter, 2607 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2607 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-22 23:55:47,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2607 Valid, 2482 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-22 23:55:47,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30294 states. [2023-11-22 23:55:49,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30294 to 30294. [2023-11-22 23:55:49,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30294 states, 21368 states have (on average 1.4574129539498315) internal successors, (31142), 22510 states have internal predecessors, (31142), 6766 states have call successors, (6766), 1392 states have call predecessors, (6766), 2159 states have return successors, (11465), 7017 states have call predecessors, (11465), 6763 states have call successors, (11465) [2023-11-22 23:55:49,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30294 states to 30294 states and 49373 transitions. [2023-11-22 23:55:49,781 INFO L78 Accepts]: Start accepts. Automaton has 30294 states and 49373 transitions. Word has length 258 [2023-11-22 23:55:49,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:55:49,781 INFO L495 AbstractCegarLoop]: Abstraction has 30294 states and 49373 transitions. [2023-11-22 23:55:49,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-11-22 23:55:49,781 INFO L276 IsEmpty]: Start isEmpty. Operand 30294 states and 49373 transitions. [2023-11-22 23:55:49,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-11-22 23:55:49,821 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:55:49,821 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-22 23:55:49,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-22 23:55:50,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:55:50,029 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:55:50,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:55:50,029 INFO L85 PathProgramCache]: Analyzing trace with hash 2041506934, now seen corresponding path program 1 times [2023-11-22 23:55:50,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:55:50,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383628092] [2023-11-22 23:55:50,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:50,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:55:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:50,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:50,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:50,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:50,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:50,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:50,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:55:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:50,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:50,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:50,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:50,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:55:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:50,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:50,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:50,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:50,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:55:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:50,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:50,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:50,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:50,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:50,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:55:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:50,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:50,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:55:50,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:50,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:50,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:50,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-22 23:55:50,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:55:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 23:55:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 23:55:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-22 23:55:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:55:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-22 23:55:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 23:55:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 23:55:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:55:51,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:55:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:55:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-22 23:55:51,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-22 23:55:51,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-22 23:55:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:55:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:55:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-11-22 23:55:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-22 23:55:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-11-22 23:55:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:51,630 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-11-22 23:55:51,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:55:51,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383628092] [2023-11-22 23:55:51,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383628092] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:55:51,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586477787] [2023-11-22 23:55:51,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:51,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:55:51,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:55:51,632 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 23:55:51,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-22 23:55:52,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:52,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 2845 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-22 23:55:52,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:55:52,418 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-22 23:55:52,419 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 23:55:52,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586477787] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:55:52,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 23:55:52,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 15 [2023-11-22 23:55:52,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872127777] [2023-11-22 23:55:52,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:55:52,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 23:55:52,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:55:52,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 23:55:52,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2023-11-22 23:55:52,421 INFO L87 Difference]: Start difference. First operand 30294 states and 49373 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-11-22 23:55:54,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:55:54,573 INFO L93 Difference]: Finished difference Result 60531 states and 98575 transitions. [2023-11-22 23:55:54,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 23:55:54,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 259 [2023-11-22 23:55:54,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:55:54,685 INFO L225 Difference]: With dead ends: 60531 [2023-11-22 23:55:54,685 INFO L226 Difference]: Without dead ends: 30262 [2023-11-22 23:55:54,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2023-11-22 23:55:54,760 INFO L413 NwaCegarLoop]: 2478 mSDtfsCounter, 2602 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2602 SdHoareTripleChecker+Valid, 2478 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-22 23:55:54,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2602 Valid, 2478 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-22 23:55:54,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30262 states. [2023-11-22 23:55:56,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30262 to 30262. [2023-11-22 23:55:56,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30262 states, 21352 states have (on average 1.4570063694267517) internal successors, (31110), 22494 states have internal predecessors, (31110), 6750 states have call successors, (6750), 1392 states have call predecessors, (6750), 2159 states have return successors, (11357), 7001 states have call predecessors, (11357), 6747 states have call successors, (11357) [2023-11-22 23:55:57,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30262 states to 30262 states and 49217 transitions. [2023-11-22 23:55:57,090 INFO L78 Accepts]: Start accepts. Automaton has 30262 states and 49217 transitions. Word has length 259 [2023-11-22 23:55:57,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:55:57,091 INFO L495 AbstractCegarLoop]: Abstraction has 30262 states and 49217 transitions. [2023-11-22 23:55:57,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-11-22 23:55:57,091 INFO L276 IsEmpty]: Start isEmpty. Operand 30262 states and 49217 transitions. [2023-11-22 23:55:57,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-11-22 23:55:57,124 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:55:57,125 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 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] [2023-11-22 23:55:57,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-22 23:55:57,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-22 23:55:57,337 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:55:57,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:55:57,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1801493442, now seen corresponding path program 1 times [2023-11-22 23:55:57,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:55:57,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787448437] [2023-11-22 23:55:57,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:57,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:55:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:57,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:55:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:55:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:55:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:57,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:55:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:55:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:55:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-22 23:55:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-22 23:55:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:55:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-22 23:55:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-22 23:55:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 23:55:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-22 23:55:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 23:55:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-22 23:55:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-22 23:55:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-22 23:55:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-11-22 23:55:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-11-22 23:55:57,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-11-22 23:55:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-22 23:55:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-11-22 23:55:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-11-22 23:55:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 23:55:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:55:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 23:55:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-11-22 23:55:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-11-22 23:55:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:57,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-11-22 23:55:57,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,855 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2023-11-22 23:55:57,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:55:57,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787448437] [2023-11-22 23:55:57,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787448437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:55:57,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:55:57,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-22 23:55:57,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200113496] [2023-11-22 23:55:57,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:55:57,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-22 23:55:57,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:55:57,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-22 23:55:57,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-22 23:55:57,857 INFO L87 Difference]: Start difference. First operand 30262 states and 49217 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 5 states have internal predecessors, (116), 3 states have call successors, (36), 8 states have call predecessors, (36), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-11-22 23:56:10,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:56:10,742 INFO L93 Difference]: Finished difference Result 50475 states and 82199 transitions. [2023-11-22 23:56:10,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-22 23:56:10,742 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 5 states have internal predecessors, (116), 3 states have call successors, (36), 8 states have call predecessors, (36), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 285 [2023-11-22 23:56:10,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:56:10,799 INFO L225 Difference]: With dead ends: 50475 [2023-11-22 23:56:10,799 INFO L226 Difference]: Without dead ends: 19971 [2023-11-22 23:56:10,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-11-22 23:56:10,859 INFO L413 NwaCegarLoop]: 1609 mSDtfsCounter, 2062 mSDsluCounter, 7991 mSDsCounter, 0 mSdLazyCounter, 9022 mSolverCounterSat, 1720 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2155 SdHoareTripleChecker+Valid, 9600 SdHoareTripleChecker+Invalid, 10742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1720 IncrementalHoareTripleChecker+Valid, 9022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2023-11-22 23:56:10,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2155 Valid, 9600 Invalid, 10742 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1720 Valid, 9022 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2023-11-22 23:56:10,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19971 states. [2023-11-22 23:56:12,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19971 to 18465. [2023-11-22 23:56:12,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18465 states, 13032 states have (on average 1.4582565991405771) internal successors, (19004), 13727 states have internal predecessors, (19004), 4110 states have call successors, (4110), 867 states have call predecessors, (4110), 1322 states have return successors, (6624), 4241 states have call predecessors, (6624), 4107 states have call successors, (6624) [2023-11-22 23:56:12,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18465 states to 18465 states and 29738 transitions. [2023-11-22 23:56:12,244 INFO L78 Accepts]: Start accepts. Automaton has 18465 states and 29738 transitions. Word has length 285 [2023-11-22 23:56:12,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:56:12,245 INFO L495 AbstractCegarLoop]: Abstraction has 18465 states and 29738 transitions. [2023-11-22 23:56:12,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 5 states have internal predecessors, (116), 3 states have call successors, (36), 8 states have call predecessors, (36), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-11-22 23:56:12,245 INFO L276 IsEmpty]: Start isEmpty. Operand 18465 states and 29738 transitions. [2023-11-22 23:56:12,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-11-22 23:56:12,271 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:56:12,271 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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] [2023-11-22 23:56:12,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-22 23:56:12,272 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:56:12,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:56:12,272 INFO L85 PathProgramCache]: Analyzing trace with hash -2128188081, now seen corresponding path program 1 times [2023-11-22 23:56:12,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:56:12,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795574745] [2023-11-22 23:56:12,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:56:12,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:56:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:56:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:12,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:56:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:56:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:56:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:56:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:56:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-22 23:56:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-22 23:56:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:56:12,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-22 23:56:12,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:12,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 23:56:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 23:56:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-22 23:56:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-22 23:56:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-22 23:56:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-22 23:56:12,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-11-22 23:56:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-22 23:56:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:56:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-22 23:56:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-22 23:56:12,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-11-22 23:56:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-11-22 23:56:12,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-11-22 23:56:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-11-22 23:56:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-11-22 23:56:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-11-22 23:56:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-11-22 23:56:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-11-22 23:56:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-11-22 23:56:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-11-22 23:56:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-11-22 23:56:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:12,754 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2023-11-22 23:56:12,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:56:12,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795574745] [2023-11-22 23:56:12,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795574745] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:56:12,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961593197] [2023-11-22 23:56:12,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:56:12,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:56:12,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:56:12,756 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 23:56:12,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-22 23:56:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:13,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 3026 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-22 23:56:13,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:56:13,602 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2023-11-22 23:56:13,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 23:56:13,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961593197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:56:13,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 23:56:13,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-11-22 23:56:13,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254207691] [2023-11-22 23:56:13,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:56:13,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 23:56:13,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:56:13,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 23:56:13,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-22 23:56:13,605 INFO L87 Difference]: Start difference. First operand 18465 states and 29738 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2023-11-22 23:56:17,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:56:17,582 INFO L93 Difference]: Finished difference Result 48211 states and 78120 transitions. [2023-11-22 23:56:17,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 23:56:17,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 304 [2023-11-22 23:56:17,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:56:17,692 INFO L225 Difference]: With dead ends: 48211 [2023-11-22 23:56:17,692 INFO L226 Difference]: Without dead ends: 33374 [2023-11-22 23:56:17,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2023-11-22 23:56:17,729 INFO L413 NwaCegarLoop]: 4684 mSDtfsCounter, 2945 mSDsluCounter, 11158 mSDsCounter, 0 mSdLazyCounter, 1088 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2973 SdHoareTripleChecker+Valid, 15842 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-22 23:56:17,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2973 Valid, 15842 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1088 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-22 23:56:17,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33374 states. [2023-11-22 23:56:19,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33374 to 26398. [2023-11-22 23:56:19,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26398 states, 18676 states have (on average 1.4567894624116513) internal successors, (27207), 19670 states have internal predecessors, (27207), 5864 states have call successors, (5864), 1215 states have call predecessors, (5864), 1857 states have return successors, (9501), 6031 states have call predecessors, (9501), 5861 states have call successors, (9501) [2023-11-22 23:56:20,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26398 states to 26398 states and 42572 transitions. [2023-11-22 23:56:20,031 INFO L78 Accepts]: Start accepts. Automaton has 26398 states and 42572 transitions. Word has length 304 [2023-11-22 23:56:20,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:56:20,032 INFO L495 AbstractCegarLoop]: Abstraction has 26398 states and 42572 transitions. [2023-11-22 23:56:20,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2023-11-22 23:56:20,032 INFO L276 IsEmpty]: Start isEmpty. Operand 26398 states and 42572 transitions. [2023-11-22 23:56:20,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-11-22 23:56:20,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:56:20,065 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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] [2023-11-22 23:56:20,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-22 23:56:20,280 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,SelfDestructingSolverStorable16 [2023-11-22 23:56:20,281 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:56:20,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:56:20,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1172085517, now seen corresponding path program 1 times [2023-11-22 23:56:20,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:56:20,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879941637] [2023-11-22 23:56:20,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:56:20,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:56:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:20,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:20,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:20,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:20,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:20,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:56:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:20,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:20,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:20,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:56:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:20,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:20,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:20,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:56:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:20,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:20,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:20,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:56:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:20,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:20,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:56:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:20,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:20,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:56:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:20,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-22 23:56:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:20,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:20,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-22 23:56:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:56:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-22 23:56:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 23:56:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 23:56:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-22 23:56:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-22 23:56:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-22 23:56:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-22 23:56:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-11-22 23:56:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-22 23:56:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:56:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-22 23:56:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-22 23:56:21,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-11-22 23:56:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-11-22 23:56:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-11-22 23:56:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-11-22 23:56:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-11-22 23:56:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-11-22 23:56:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-11-22 23:56:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-11-22 23:56:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-11-22 23:56:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-11-22 23:56:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-11-22 23:56:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:21,184 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2023-11-22 23:56:21,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:56:21,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879941637] [2023-11-22 23:56:21,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879941637] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:56:21,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91673334] [2023-11-22 23:56:21,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:56:21,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:56:21,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:56:21,186 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 23:56:21,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-22 23:56:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:22,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 3021 conjuncts, 69 conjunts are in the unsatisfiable core [2023-11-22 23:56:22,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:56:22,459 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2023-11-22 23:56:22,460 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 23:56:22,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91673334] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:56:22,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 23:56:22,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 17 [2023-11-22 23:56:22,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411003952] [2023-11-22 23:56:22,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:56:22,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 23:56:22,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:56:22,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 23:56:22,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-11-22 23:56:22,463 INFO L87 Difference]: Start difference. First operand 26398 states and 42572 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 6 states have internal predecessors, (110), 4 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (38), 4 states have call predecessors, (38), 3 states have call successors, (38) [2023-11-22 23:56:30,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:56:30,870 INFO L93 Difference]: Finished difference Result 54660 states and 89727 transitions. [2023-11-22 23:56:30,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-22 23:56:30,871 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 6 states have internal predecessors, (110), 4 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (38), 4 states have call predecessors, (38), 3 states have call successors, (38) Word has length 304 [2023-11-22 23:56:30,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:56:30,987 INFO L225 Difference]: With dead ends: 54660 [2023-11-22 23:56:30,987 INFO L226 Difference]: Without dead ends: 28287 [2023-11-22 23:56:31,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2023-11-22 23:56:31,075 INFO L413 NwaCegarLoop]: 2163 mSDtfsCounter, 4788 mSDsluCounter, 9334 mSDsCounter, 0 mSdLazyCounter, 5081 mSolverCounterSat, 1629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5132 SdHoareTripleChecker+Valid, 11497 SdHoareTripleChecker+Invalid, 6710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1629 IncrementalHoareTripleChecker+Valid, 5081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-11-22 23:56:31,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5132 Valid, 11497 Invalid, 6710 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1629 Valid, 5081 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-11-22 23:56:31,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28287 states. [2023-11-22 23:56:33,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28287 to 26433. [2023-11-22 23:56:33,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26433 states, 18711 states have (on average 1.4563091229757896) internal successors, (27249), 19698 states have internal predecessors, (27249), 5871 states have call successors, (5871), 1215 states have call predecessors, (5871), 1850 states have return successors, (9341), 6031 states have call predecessors, (9341), 5868 states have call successors, (9341) [2023-11-22 23:56:33,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26433 states to 26433 states and 42461 transitions. [2023-11-22 23:56:33,636 INFO L78 Accepts]: Start accepts. Automaton has 26433 states and 42461 transitions. Word has length 304 [2023-11-22 23:56:33,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:56:33,637 INFO L495 AbstractCegarLoop]: Abstraction has 26433 states and 42461 transitions. [2023-11-22 23:56:33,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 6 states have internal predecessors, (110), 4 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (38), 4 states have call predecessors, (38), 3 states have call successors, (38) [2023-11-22 23:56:33,637 INFO L276 IsEmpty]: Start isEmpty. Operand 26433 states and 42461 transitions. [2023-11-22 23:56:33,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2023-11-22 23:56:33,677 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:56:33,677 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 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] [2023-11-22 23:56:33,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-22 23:56:33,900 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,SelfDestructingSolverStorable17 [2023-11-22 23:56:33,900 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:56:33,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:56:33,901 INFO L85 PathProgramCache]: Analyzing trace with hash -2044973934, now seen corresponding path program 1 times [2023-11-22 23:56:33,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:56:33,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918045208] [2023-11-22 23:56:33,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:56:33,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:56:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:34,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:56:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:34,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:34,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:56:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:56:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:56:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:56:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:56:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-22 23:56:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-22 23:56:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:56:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 23:56:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-22 23:56:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-22 23:56:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 23:56:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-22 23:56:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-11-22 23:56:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-22 23:56:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-11-22 23:56:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-11-22 23:56:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-11-22 23:56:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:56:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 23:56:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 23:56:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-22 23:56:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-22 23:56:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-22 23:56:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-22 23:56:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-22 23:56:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-22 23:56:34,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-22 23:56:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-22 23:56:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-11-22 23:56:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-11-22 23:56:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-11-22 23:56:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,924 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-22 23:56:34,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:56:34,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918045208] [2023-11-22 23:56:34,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918045208] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:56:34,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333560220] [2023-11-22 23:56:34,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:56:34,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:56:34,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:56:34,926 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 23:56:34,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-22 23:56:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:35,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 3045 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-22 23:56:35,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:56:35,937 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2023-11-22 23:56:35,938 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 23:56:35,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333560220] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:56:35,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 23:56:35,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 15 [2023-11-22 23:56:35,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107132802] [2023-11-22 23:56:35,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:56:35,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 23:56:35,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:56:35,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 23:56:35,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-22 23:56:35,947 INFO L87 Difference]: Start difference. First operand 26433 states and 42461 transitions. Second operand has 7 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) [2023-11-22 23:56:39,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:56:39,729 INFO L93 Difference]: Finished difference Result 49794 states and 80042 transitions. [2023-11-22 23:56:39,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 23:56:39,730 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) Word has length 310 [2023-11-22 23:56:39,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:56:39,833 INFO L225 Difference]: With dead ends: 49794 [2023-11-22 23:56:39,833 INFO L226 Difference]: Without dead ends: 26746 [2023-11-22 23:56:39,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-11-22 23:56:39,885 INFO L413 NwaCegarLoop]: 2601 mSDtfsCounter, 2161 mSDsluCounter, 12822 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2165 SdHoareTripleChecker+Valid, 15423 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-22 23:56:39,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2165 Valid, 15423 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-22 23:56:39,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26746 states. [2023-11-22 23:56:42,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26746 to 26723. [2023-11-22 23:56:42,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26723 states, 18886 states have (on average 1.454728370221328) internal successors, (27474), 19888 states have internal predecessors, (27474), 5944 states have call successors, (5944), 1255 states have call predecessors, (5944), 1892 states have return successors, (9419), 6103 states have call predecessors, (9419), 5941 states have call successors, (9419) [2023-11-22 23:56:42,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26723 states to 26723 states and 42837 transitions. [2023-11-22 23:56:42,337 INFO L78 Accepts]: Start accepts. Automaton has 26723 states and 42837 transitions. Word has length 310 [2023-11-22 23:56:42,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:56:42,338 INFO L495 AbstractCegarLoop]: Abstraction has 26723 states and 42837 transitions. [2023-11-22 23:56:42,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) [2023-11-22 23:56:42,338 INFO L276 IsEmpty]: Start isEmpty. Operand 26723 states and 42837 transitions. [2023-11-22 23:56:42,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2023-11-22 23:56:42,365 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:56:42,365 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2023-11-22 23:56:42,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-22 23:56:42,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:56:42,566 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:56:42,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:56:42,566 INFO L85 PathProgramCache]: Analyzing trace with hash 101436321, now seen corresponding path program 2 times [2023-11-22 23:56:42,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:56:42,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926052318] [2023-11-22 23:56:42,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:56:42,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:56:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:56:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:56:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:56:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:56:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:56:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:56:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-22 23:56:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-22 23:56:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:56:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 23:56:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:56:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-22 23:56:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-22 23:56:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-22 23:56:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-11-22 23:56:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-11-22 23:56:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-22 23:56:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-22 23:56:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-11-22 23:56:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-22 23:56:43,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:56:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 23:56:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 23:56:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-11-22 23:56:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-11-22 23:56:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-11-22 23:56:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-11-22 23:56:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-11-22 23:56:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-22 23:56:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-11-22 23:56:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-11-22 23:56:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-11-22 23:56:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-11-22 23:56:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2023-11-22 23:56:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,629 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2023-11-22 23:56:43,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:56:43,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926052318] [2023-11-22 23:56:43,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926052318] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:56:43,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998986953] [2023-11-22 23:56:43,630 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 23:56:43,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:56:43,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:56:43,644 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 23:56:43,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-22 23:56:44,704 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-22 23:56:44,705 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 23:56:44,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 3071 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-22 23:56:44,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:56:44,787 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 398 trivial. 0 not checked. [2023-11-22 23:56:44,788 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 23:56:44,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998986953] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:56:44,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 23:56:44,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 15 [2023-11-22 23:56:44,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886671878] [2023-11-22 23:56:44,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:56:44,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 23:56:44,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:56:44,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 23:56:44,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-22 23:56:44,790 INFO L87 Difference]: Start difference. First operand 26723 states and 42837 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2023-11-22 23:56:48,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:56:48,076 INFO L93 Difference]: Finished difference Result 49539 states and 79722 transitions. [2023-11-22 23:56:48,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 23:56:48,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) Word has length 316 [2023-11-22 23:56:48,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:56:48,175 INFO L225 Difference]: With dead ends: 49539 [2023-11-22 23:56:48,175 INFO L226 Difference]: Without dead ends: 26723 [2023-11-22 23:56:48,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-22 23:56:48,225 INFO L413 NwaCegarLoop]: 2478 mSDtfsCounter, 0 mSDsluCounter, 7429 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9907 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-22 23:56:48,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9907 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-22 23:56:48,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26723 states.