./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 fba957c5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-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-fba957c-m [2023-11-23 10:22:02,936 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 10:22:03,012 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 10:22:03,018 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 10:22:03,019 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 10:22:03,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 10:22:03,048 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 10:22:03,048 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 10:22:03,049 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 10:22:03,053 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 10:22:03,053 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 10:22:03,054 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 10:22:03,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 10:22:03,056 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 10:22:03,056 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 10:22:03,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 10:22:03,057 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 10:22:03,057 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 10:22:03,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 10:22:03,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 10:22:03,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 10:22:03,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 10:22:03,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 10:22:03,058 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 10:22:03,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 10:22:03,059 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 10:22:03,060 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 10:22:03,060 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 10:22:03,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 10:22:03,060 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 10:22:03,061 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 10:22:03,061 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 10:22:03,061 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 10:22:03,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 10:22:03,062 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 10:22:03,062 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 10:22:03,062 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 10:22:03,062 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 10:22:03,062 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 10:22:03,063 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6150b3a515973ce4119efed812e463608b94129eea9915abf4784f091ce6f187 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-23 10:22:03,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 10:22:03,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 10:22:03,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 10:22:03,313 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 10:22:03,314 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 10:22:03,315 INFO L431 ainManager$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 [2023-11-23 10:22:04,375 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 10:22:04,775 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 10:22:04,775 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 [2023-11-23 10:22:04,811 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88044006c/0efbdbceb61e4789b74380de2164b098/FLAGc03448e57 [2023-11-23 10:22:04,824 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88044006c/0efbdbceb61e4789b74380de2164b098 [2023-11-23 10:22:04,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 10:22:04,829 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 10:22:04,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 10:22:04,830 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 10:22:04,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 10:22:04,834 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:22:04" (1/1) ... [2023-11-23 10:22:04,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a84be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:04, skipping insertion in model container [2023-11-23 10:22:04,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:22:04" (1/1) ... [2023-11-23 10:22:04,919 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 10:22:06,386 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] [2023-11-23 10:22:06,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 10:22:06,451 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 10:22:06,510 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] [2023-11-23 10:22:06,694 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] [2023-11-23 10:22:06,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 10:22:06,761 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 10:22:06,766 INFO L206 MainTranslator]: Completed translation [2023-11-23 10:22:06,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:06 WrapperNode [2023-11-23 10:22:06,767 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 10:22:06,768 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 10:22:06,768 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 10:22:06,769 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 10:22:06,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:06" (1/1) ... [2023-11-23 10:22:06,838 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:06" (1/1) ... [2023-11-23 10:22:07,011 INFO L138 Inliner]: procedures = 258, calls = 1853, calls flagged for inlining = 104, calls inlined = 100, statements flattened = 5311 [2023-11-23 10:22:07,012 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 10:22:07,012 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 10:22:07,012 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 10:22:07,013 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 10:22:07,033 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:06" (1/1) ... [2023-11-23 10:22:07,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:06" (1/1) ... [2023-11-23 10:22:07,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:06" (1/1) ... [2023-11-23 10:22:07,062 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:06" (1/1) ... [2023-11-23 10:22:07,133 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:06" (1/1) ... [2023-11-23 10:22:07,156 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:06" (1/1) ... [2023-11-23 10:22:07,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:06" (1/1) ... [2023-11-23 10:22:07,200 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:06" (1/1) ... [2023-11-23 10:22:07,228 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 10:22:07,230 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 10:22:07,230 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 10:22:07,230 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 10:22:07,231 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:06" (1/1) ... [2023-11-23 10:22:07,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 10:22:07,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:22:07,255 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 10:22:07,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 10:22:07,301 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-23 10:22:07,301 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-23 10:22:07,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_12 [2023-11-23 10:22:07,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_12 [2023-11-23 10:22:07,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 10:22:07,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 10:22:07,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 10:22:07,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 10:22:07,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 10:22:07,302 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 10:22:07,304 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_delete [2023-11-23 10:22:07,304 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_delete [2023-11-23 10:22:07,304 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_wait [2023-11-23 10:22:07,304 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_wait [2023-11-23 10:22:07,304 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2023-11-23 10:22:07,304 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2023-11-23 10:22:07,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-11-23 10:22:07,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-11-23 10:22:07,305 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2023-11-23 10:22:07,305 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2023-11-23 10:22:07,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 10:22:07,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 10:22:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-11-23 10:22:07,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-11-23 10:22:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2023-11-23 10:22:07,306 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2023-11-23 10:22:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2023-11-23 10:22:07,307 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2023-11-23 10:22:07,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_50 [2023-11-23 10:22:07,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_50 [2023-11-23 10:22:07,307 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 10:22:07,307 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 10:22:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 10:22:07,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 10:22:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 10:22:07,308 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 10:22:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 10:22:07,309 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 10:22:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_detect_change [2023-11-23 10:22:07,309 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_detect_change [2023-11-23 10:22:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-23 10:22:07,309 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-23 10:22:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_cancel [2023-11-23 10:22:07,309 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_cancel [2023-11-23 10:22:07,310 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-23 10:22:07,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-23 10:22:07,310 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_init [2023-11-23 10:22:07,310 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_init [2023-11-23 10:22:07,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29 [2023-11-23 10:22:07,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29 [2023-11-23 10:22:07,310 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2023-11-23 10:22:07,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2023-11-23 10:22:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 10:22:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_27 [2023-11-23 10:22:07,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_27 [2023-11-23 10:22:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 10:22:07,311 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 10:22:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2023-11-23 10:22:07,311 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2023-11-23 10:22:07,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 10:22:07,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_13 [2023-11-23 10:22:07,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_13 [2023-11-23 10:22:07,312 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-23 10:22:07,313 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-23 10:22:07,313 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2023-11-23 10:22:07,313 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2023-11-23 10:22:07,313 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_disconnect [2023-11-23 10:22:07,314 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_disconnect [2023-11-23 10:22:07,314 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2023-11-23 10:22:07,314 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2023-11-23 10:22:07,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_15 [2023-11-23 10:22:07,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_15 [2023-11-23 10:22:07,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 10:22:07,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 10:22:07,314 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 10:22:07,315 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 10:22:07,315 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 10:22:07,315 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 10:22:07,315 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-23 10:22:07,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-23 10:22:07,315 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 10:22:07,315 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 10:22:07,316 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2023-11-23 10:22:07,316 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2023-11-23 10:22:07,316 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 10:22:07,316 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 10:22:07,316 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-23 10:22:07,316 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-23 10:22:07,316 INFO L130 BoogieDeclarations]: Found specification of procedure add_offloaded_reg [2023-11-23 10:22:07,317 INFO L138 BoogieDeclarations]: Found implementation of procedure add_offloaded_reg [2023-11-23 10:22:07,317 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-11-23 10:22:07,317 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-11-23 10:22:07,317 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2023-11-23 10:22:07,317 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2023-11-23 10:22:07,317 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_to_multiple_of_64 [2023-11-23 10:22:07,318 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_to_multiple_of_64 [2023-11-23 10:22:07,318 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2023-11-23 10:22:07,318 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2023-11-23 10:22:07,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 10:22:07,318 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2023-11-23 10:22:07,318 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2023-11-23 10:22:07,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 10:22:07,318 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 10:22:07,318 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 10:22:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2023-11-23 10:22:07,319 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2023-11-23 10:22:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2023-11-23 10:22:07,319 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2023-11-23 10:22:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2023-11-23 10:22:07,319 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2023-11-23 10:22:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_workqueue_key [2023-11-23 10:22:07,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_workqueue_key [2023-11-23 10:22:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 10:22:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-23 10:22:07,320 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-23 10:22:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 10:22:07,320 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 10:22:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-23 10:22:07,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-23 10:22:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2023-11-23 10:22:07,321 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2023-11-23 10:22:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-23 10:22:07,322 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-23 10:22:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 10:22:07,322 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 10:22:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2023-11-23 10:22:07,322 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2023-11-23 10:22:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 10:22:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_response_error [2023-11-23 10:22:07,322 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_response_error [2023-11-23 10:22:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2023-11-23 10:22:07,323 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2023-11-23 10:22:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_free_host [2023-11-23 10:22:07,323 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_free_host [2023-11-23 10:22:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 10:22:07,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 10:22:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_32 [2023-11-23 10:22:07,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_32 [2023-11-23 10:22:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 10:22:07,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 10:22:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 10:22:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_queue_poll_work [2023-11-23 10:22:07,325 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_queue_poll_work [2023-11-23 10:22:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2023-11-23 10:22:07,325 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2023-11-23 10:22:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 10:22:07,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 10:22:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-11-23 10:22:07,326 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-11-23 10:22:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2023-11-23 10:22:07,328 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2023-11-23 10:22:07,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 10:22:07,329 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_to_buffer [2023-11-23 10:22:07,329 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_to_buffer [2023-11-23 10:22:07,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_9 [2023-11-23 10:22:07,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_9 [2023-11-23 10:22:07,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 10:22:07,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 10:22:07,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 10:22:07,331 INFO L130 BoogieDeclarations]: Found specification of procedure __download_offload_pseudocode [2023-11-23 10:22:07,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __download_offload_pseudocode [2023-11-23 10:22:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 10:22:07,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 10:22:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2023-11-23 10:22:07,336 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2023-11-23 10:22:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2023-11-23 10:22:07,336 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2023-11-23 10:22:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_InterfaceNumber [2023-11-23 10:22:07,336 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_InterfaceNumber [2023-11-23 10:22:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-23 10:22:07,337 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-23 10:22:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-23 10:22:07,337 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-23 10:22:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2023-11-23 10:22:07,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2023-11-23 10:22:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2023-11-23 10:22:07,337 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2023-11-23 10:22:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure new_system_port_status [2023-11-23 10:22:07,338 INFO L138 BoogieDeclarations]: Found implementation of procedure new_system_port_status [2023-11-23 10:22:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_request_done [2023-11-23 10:22:07,338 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_request_done [2023-11-23 10:22:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-23 10:22:07,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-23 10:22:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-23 10:22:07,338 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-23 10:22:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2023-11-23 10:22:07,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2023-11-23 10:22:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2023-11-23 10:22:07,339 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2023-11-23 10:22:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-11-23 10:22:07,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-11-23 10:22:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2023-11-23 10:22:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_47 [2023-11-23 10:22:07,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_47 [2023-11-23 10:22:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-11-23 10:22:07,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-11-23 10:22:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-23 10:22:07,340 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-23 10:22:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 10:22:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2023-11-23 10:22:07,340 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2023-11-23 10:22:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_priv [2023-11-23 10:22:07,340 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_priv [2023-11-23 10:22:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-11-23 10:22:07,340 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-11-23 10:22:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_deadwork_thread [2023-11-23 10:22:07,341 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_deadwork_thread [2023-11-23 10:22:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure check_vub300_port_status [2023-11-23 10:22:07,341 INFO L138 BoogieDeclarations]: Found implementation of procedure check_vub300_port_status [2023-11-23 10:22:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-23 10:22:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 10:22:07,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 10:22:07,928 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 10:22:07,931 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 10:22:08,729 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 10:22:10,840 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 10:22:11,066 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 10:22:11,066 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 10:22:11,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:22:11 BoogieIcfgContainer [2023-11-23 10:22:11,080 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 10:22:11,082 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 10:22:11,082 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 10:22:11,085 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 10:22:11,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:22:04" (1/3) ... [2023-11-23 10:22:11,086 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d1179f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:22:11, skipping insertion in model container [2023-11-23 10:22:11,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:06" (2/3) ... [2023-11-23 10:22:11,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d1179f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:22:11, skipping insertion in model container [2023-11-23 10:22:11,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:22:11" (3/3) ... [2023-11-23 10:22:11,089 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 [2023-11-23 10:22:11,102 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 10:22:11,102 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 10:22:11,154 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 10:22:11,159 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;@66c5bb2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 10:22:11,160 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 10:22:11,168 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) [2023-11-23 10:22:11,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-23 10:22:11,186 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:22:11,187 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] [2023-11-23 10:22:11,187 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:22:11,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:22:11,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1483601131, now seen corresponding path program 1 times [2023-11-23 10:22:11,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:22:11,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809099441] [2023-11-23 10:22:11,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:22:11,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:22:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:11,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:11,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:11,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:11,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:22:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:11,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:11,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:11,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:22:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:11,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:11,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:11,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:11,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:22:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:11,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:11,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:11,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:22:11,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:11,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:11,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 10:22:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:11,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:11,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:22:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:11,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:22:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:11,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:11,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 10:22:11,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:11,767 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-23 10:22:11,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:22:11,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809099441] [2023-11-23 10:22:11,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809099441] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:22:11,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:22:11,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 10:22:11,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026006961] [2023-11-23 10:22:11,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:22:11,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 10:22:11,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:22:11,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 10:22:11,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-23 10:22:11,809 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) [2023-11-23 10:22:16,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:22:16,151 INFO L93 Difference]: Finished difference Result 3716 states and 5837 transitions. [2023-11-23 10:22:16,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 10:22:16,154 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 [2023-11-23 10:22:16,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:22:16,194 INFO L225 Difference]: With dead ends: 3716 [2023-11-23 10:22:16,194 INFO L226 Difference]: Without dead ends: 1948 [2023-11-23 10:22:16,209 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 [2023-11-23 10:22:16,211 INFO L413 NwaCegarLoop]: 1914 mSDtfsCounter, 2550 mSDsluCounter, 1839 mSDsCounter, 0 mSdLazyCounter, 2068 mSolverCounterSat, 2167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2638 SdHoareTripleChecker+Valid, 3753 SdHoareTripleChecker+Invalid, 4235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2167 IncrementalHoareTripleChecker+Valid, 2068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-23 10:22:16,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2638 Valid, 3753 Invalid, 4235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2167 Valid, 2068 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-23 10:22:16,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2023-11-23 10:22:16,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1745. [2023-11-23 10:22:16,344 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) [2023-11-23 10:22:16,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2634 transitions. [2023-11-23 10:22:16,358 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2634 transitions. Word has length 114 [2023-11-23 10:22:16,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:22:16,359 INFO L495 AbstractCegarLoop]: Abstraction has 1745 states and 2634 transitions. [2023-11-23 10:22:16,359 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) [2023-11-23 10:22:16,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2634 transitions. [2023-11-23 10:22:16,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-23 10:22:16,366 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:22:16,366 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] [2023-11-23 10:22:16,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 10:22:16,367 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:22:16,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:22:16,368 INFO L85 PathProgramCache]: Analyzing trace with hash -728870413, now seen corresponding path program 1 times [2023-11-23 10:22:16,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:22:16,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745532816] [2023-11-23 10:22:16,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:22:16,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:22:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:16,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:16,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:16,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:16,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:22:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:16,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:16,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:16,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:16,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:22:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:16,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:16,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:16,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:22:16,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:16,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:16,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:16,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:22:16,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:16,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:16,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 10:22:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:16,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:16,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:22:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:16,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:22:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:16,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:17,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 10:22:17,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:17,012 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-23 10:22:17,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:22:17,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745532816] [2023-11-23 10:22:17,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745532816] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:22:17,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:22:17,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 10:22:17,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354719307] [2023-11-23 10:22:17,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:22:17,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 10:22:17,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:22:17,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 10:22:17,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-23 10:22:17,016 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) [2023-11-23 10:22:27,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:22:27,547 INFO L93 Difference]: Finished difference Result 5604 states and 8977 transitions. [2023-11-23 10:22:27,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 10:22:27,547 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 [2023-11-23 10:22:27,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:22:27,589 INFO L225 Difference]: With dead ends: 5604 [2023-11-23 10:22:27,589 INFO L226 Difference]: Without dead ends: 3876 [2023-11-23 10:22:27,601 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 [2023-11-23 10:22:27,604 INFO L413 NwaCegarLoop]: 2175 mSDtfsCounter, 5142 mSDsluCounter, 5859 mSDsCounter, 0 mSdLazyCounter, 5381 mSolverCounterSat, 2760 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5422 SdHoareTripleChecker+Valid, 8034 SdHoareTripleChecker+Invalid, 8141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2760 IncrementalHoareTripleChecker+Valid, 5381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2023-11-23 10:22:27,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5422 Valid, 8034 Invalid, 8141 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2760 Valid, 5381 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2023-11-23 10:22:27,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3876 states. [2023-11-23 10:22:27,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3876 to 3561. [2023-11-23 10:22:27,743 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) [2023-11-23 10:22:27,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3561 states to 3561 states and 5544 transitions. [2023-11-23 10:22:27,759 INFO L78 Accepts]: Start accepts. Automaton has 3561 states and 5544 transitions. Word has length 114 [2023-11-23 10:22:27,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:22:27,761 INFO L495 AbstractCegarLoop]: Abstraction has 3561 states and 5544 transitions. [2023-11-23 10:22:27,762 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) [2023-11-23 10:22:27,762 INFO L276 IsEmpty]: Start isEmpty. Operand 3561 states and 5544 transitions. [2023-11-23 10:22:27,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-23 10:22:27,770 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:22:27,770 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] [2023-11-23 10:22:27,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 10:22:27,771 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:22:27,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:22:27,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1120734481, now seen corresponding path program 1 times [2023-11-23 10:22:27,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:22:27,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722219163] [2023-11-23 10:22:27,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:22:27,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:22:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:28,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:28,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:28,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:28,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:22:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:28,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:28,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:28,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:28,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:22:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:28,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:28,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:28,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:22:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:28,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:28,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:28,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:22:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:28,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:28,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 10:22:28,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:28,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:28,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:28,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:22:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:28,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:22:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:28,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:28,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 10:22:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:28,286 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-23 10:22:28,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:22:28,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722219163] [2023-11-23 10:22:28,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722219163] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:22:28,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:22:28,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 10:22:28,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854439106] [2023-11-23 10:22:28,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:22:28,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 10:22:28,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:22:28,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 10:22:28,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-23 10:22:28,289 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) [2023-11-23 10:22:39,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:22:39,139 INFO L93 Difference]: Finished difference Result 11252 states and 18793 transitions. [2023-11-23 10:22:39,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 10:22:39,140 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 [2023-11-23 10:22:39,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:22:39,178 INFO L225 Difference]: With dead ends: 11252 [2023-11-23 10:22:39,178 INFO L226 Difference]: Without dead ends: 7708 [2023-11-23 10:22:39,199 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 [2023-11-23 10:22:39,200 INFO L413 NwaCegarLoop]: 2214 mSDtfsCounter, 5096 mSDsluCounter, 5856 mSDsCounter, 0 mSdLazyCounter, 5458 mSolverCounterSat, 2721 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5384 SdHoareTripleChecker+Valid, 8070 SdHoareTripleChecker+Invalid, 8179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2721 IncrementalHoareTripleChecker+Valid, 5458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-11-23 10:22:39,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5384 Valid, 8070 Invalid, 8179 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2721 Valid, 5458 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2023-11-23 10:22:39,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7708 states. [2023-11-23 10:22:39,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7708 to 7144. [2023-11-23 10:22:39,455 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) [2023-11-23 10:22:39,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7144 states to 7144 states and 11503 transitions. [2023-11-23 10:22:39,482 INFO L78 Accepts]: Start accepts. Automaton has 7144 states and 11503 transitions. Word has length 115 [2023-11-23 10:22:39,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:22:39,483 INFO L495 AbstractCegarLoop]: Abstraction has 7144 states and 11503 transitions. [2023-11-23 10:22:39,483 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) [2023-11-23 10:22:39,483 INFO L276 IsEmpty]: Start isEmpty. Operand 7144 states and 11503 transitions. [2023-11-23 10:22:39,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-23 10:22:39,486 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:22:39,486 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] [2023-11-23 10:22:39,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 10:22:39,486 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:22:39,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:22:39,487 INFO L85 PathProgramCache]: Analyzing trace with hash -383613834, now seen corresponding path program 1 times [2023-11-23 10:22:39,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:22:39,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758986093] [2023-11-23 10:22:39,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:22:39,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:22:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:39,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:39,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:39,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:39,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:22:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:39,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:39,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:39,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:22:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:39,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:39,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:39,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:22:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:39,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:39,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:39,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:22:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:39,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:39,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 10:22:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:39,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:39,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:22:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:39,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:22:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:39,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:39,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 10:22:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:39,713 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-23 10:22:39,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:22:39,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758986093] [2023-11-23 10:22:39,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758986093] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:22:39,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:22:39,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 10:22:39,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241930274] [2023-11-23 10:22:39,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:22:39,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 10:22:39,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:22:39,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 10:22:39,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-23 10:22:39,716 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) [2023-11-23 10:22:47,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:22:47,988 INFO L93 Difference]: Finished difference Result 7706 states and 12663 transitions. [2023-11-23 10:22:47,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 10:22:47,988 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 [2023-11-23 10:22:47,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:22:48,070 INFO L225 Difference]: With dead ends: 7706 [2023-11-23 10:22:48,075 INFO L226 Difference]: Without dead ends: 7703 [2023-11-23 10:22:48,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-23 10:22:48,088 INFO L413 NwaCegarLoop]: 2192 mSDtfsCounter, 6069 mSDsluCounter, 4786 mSDsCounter, 0 mSdLazyCounter, 4374 mSolverCounterSat, 3665 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6359 SdHoareTripleChecker+Valid, 6978 SdHoareTripleChecker+Invalid, 8039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3665 IncrementalHoareTripleChecker+Valid, 4374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-11-23 10:22:48,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6359 Valid, 6978 Invalid, 8039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3665 Valid, 4374 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2023-11-23 10:22:48,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7703 states. [2023-11-23 10:22:48,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7703 to 7145. [2023-11-23 10:22:48,460 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) [2023-11-23 10:22:48,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7145 states to 7145 states and 11504 transitions. [2023-11-23 10:22:48,487 INFO L78 Accepts]: Start accepts. Automaton has 7145 states and 11504 transitions. Word has length 116 [2023-11-23 10:22:48,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:22:48,488 INFO L495 AbstractCegarLoop]: Abstraction has 7145 states and 11504 transitions. [2023-11-23 10:22:48,489 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) [2023-11-23 10:22:48,489 INFO L276 IsEmpty]: Start isEmpty. Operand 7145 states and 11504 transitions. [2023-11-23 10:22:48,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-23 10:22:48,492 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:22:48,492 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] [2023-11-23 10:22:48,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 10:22:48,493 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:22:48,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:22:48,493 INFO L85 PathProgramCache]: Analyzing trace with hash 992294610, now seen corresponding path program 1 times [2023-11-23 10:22:48,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:22:48,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922933737] [2023-11-23 10:22:48,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:22:48,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:22:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:48,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:48,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:48,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:48,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:48,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:22:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:48,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:48,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:48,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:22:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:48,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:48,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:48,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:22:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:48,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:48,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:48,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:22:48,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:48,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:48,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:48,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 10:22:48,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:48,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:48,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:22:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:48,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:22:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:48,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:48,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:48,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 10:22:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:48,717 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-23 10:22:48,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:22:48,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922933737] [2023-11-23 10:22:48,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922933737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:22:48,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:22:48,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 10:22:48,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042097702] [2023-11-23 10:22:48,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:22:48,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 10:22:48,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:22:48,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 10:22:48,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-23 10:22:48,719 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) [2023-11-23 10:22:54,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:22:54,805 INFO L93 Difference]: Finished difference Result 7702 states and 12659 transitions. [2023-11-23 10:22:54,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 10:22:54,805 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 [2023-11-23 10:22:54,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:22:54,872 INFO L225 Difference]: With dead ends: 7702 [2023-11-23 10:22:54,873 INFO L226 Difference]: Without dead ends: 7699 [2023-11-23 10:22:54,880 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 [2023-11-23 10:22:54,897 INFO L413 NwaCegarLoop]: 1888 mSDtfsCounter, 4146 mSDsluCounter, 2653 mSDsCounter, 0 mSdLazyCounter, 2954 mSolverCounterSat, 2081 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4411 SdHoareTripleChecker+Valid, 4541 SdHoareTripleChecker+Invalid, 5035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2081 IncrementalHoareTripleChecker+Valid, 2954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-23 10:22:54,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4411 Valid, 4541 Invalid, 5035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2081 Valid, 2954 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-11-23 10:22:54,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7699 states. [2023-11-23 10:22:55,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7699 to 7144. [2023-11-23 10:22:55,280 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) [2023-11-23 10:22:55,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7144 states to 7144 states and 11502 transitions. [2023-11-23 10:22:55,316 INFO L78 Accepts]: Start accepts. Automaton has 7144 states and 11502 transitions. Word has length 117 [2023-11-23 10:22:55,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:22:55,318 INFO L495 AbstractCegarLoop]: Abstraction has 7144 states and 11502 transitions. [2023-11-23 10:22:55,318 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) [2023-11-23 10:22:55,318 INFO L276 IsEmpty]: Start isEmpty. Operand 7144 states and 11502 transitions. [2023-11-23 10:22:55,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-23 10:22:55,324 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:22:55,324 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] [2023-11-23 10:22:55,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 10:22:55,325 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:22:55,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:22:55,325 INFO L85 PathProgramCache]: Analyzing trace with hash 695788281, now seen corresponding path program 1 times [2023-11-23 10:22:55,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:22:55,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331836907] [2023-11-23 10:22:55,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:22:55,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:22:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:55,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:55,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:55,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:55,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:55,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:22:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:55,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:55,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:55,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:55,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:55,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:22:55,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:55,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:55,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:55,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:22:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:55,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:55,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:22:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:55,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:22:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:55,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:55,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 10:22:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:55,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:55,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:22:55,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:55,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:22:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:55,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:22:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:55,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 10:22:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:22:55,577 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-23 10:22:55,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:22:55,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331836907] [2023-11-23 10:22:55,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331836907] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:22:55,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:22:55,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 10:22:55,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917852800] [2023-11-23 10:22:55,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:22:55,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 10:22:55,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:22:55,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 10:22:55,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-23 10:22:55,579 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) [2023-11-23 10:23:00,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:23:00,699 INFO L93 Difference]: Finished difference Result 7701 states and 12657 transitions. [2023-11-23 10:23:00,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 10:23:00,700 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 [2023-11-23 10:23:00,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:23:00,752 INFO L225 Difference]: With dead ends: 7701 [2023-11-23 10:23:00,752 INFO L226 Difference]: Without dead ends: 7672 [2023-11-23 10:23:00,762 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 [2023-11-23 10:23:00,763 INFO L413 NwaCegarLoop]: 1878 mSDtfsCounter, 4232 mSDsluCounter, 2035 mSDsCounter, 0 mSdLazyCounter, 2368 mSolverCounterSat, 2124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4499 SdHoareTripleChecker+Valid, 3913 SdHoareTripleChecker+Invalid, 4492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2124 IncrementalHoareTripleChecker+Valid, 2368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-11-23 10:23:00,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4499 Valid, 3913 Invalid, 4492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2124 Valid, 2368 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-11-23 10:23:00,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7672 states. [2023-11-23 10:23:01,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7672 to 7117. [2023-11-23 10:23:01,013 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) [2023-11-23 10:23:01,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7117 states to 7117 states and 11436 transitions. [2023-11-23 10:23:01,041 INFO L78 Accepts]: Start accepts. Automaton has 7117 states and 11436 transitions. Word has length 118 [2023-11-23 10:23:01,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:23:01,041 INFO L495 AbstractCegarLoop]: Abstraction has 7117 states and 11436 transitions. [2023-11-23 10:23:01,042 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) [2023-11-23 10:23:01,042 INFO L276 IsEmpty]: Start isEmpty. Operand 7117 states and 11436 transitions. [2023-11-23 10:23:01,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-11-23 10:23:01,061 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:23:01,061 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] [2023-11-23 10:23:01,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 10:23:01,062 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:23:01,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:23:01,062 INFO L85 PathProgramCache]: Analyzing trace with hash 959794473, now seen corresponding path program 1 times [2023-11-23 10:23:01,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:23:01,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225760841] [2023-11-23 10:23:01,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:23:01,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:23:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:23:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:23:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:23:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:23:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 10:23:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 10:23:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 10:23:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-23 10:23:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 10:23:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 10:23:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-23 10:23:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-23 10:23:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:23:01,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-23 10:23:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-23 10:23:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-23 10:23:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:01,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-23 10:23:01,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:01,346 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-11-23 10:23:01,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:23:01,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225760841] [2023-11-23 10:23:01,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225760841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:23:01,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:23:01,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 10:23:01,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278306517] [2023-11-23 10:23:01,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:23:01,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 10:23:01,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:23:01,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 10:23:01,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 10:23:01,349 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) [2023-11-23 10:23:10,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:23:10,488 INFO L93 Difference]: Finished difference Result 21645 states and 35190 transitions. [2023-11-23 10:23:10,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 10:23:10,489 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 [2023-11-23 10:23:10,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:23:10,586 INFO L225 Difference]: With dead ends: 21645 [2023-11-23 10:23:10,587 INFO L226 Difference]: Without dead ends: 14545 [2023-11-23 10:23:10,630 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 [2023-11-23 10:23:10,631 INFO L413 NwaCegarLoop]: 1856 mSDtfsCounter, 7622 mSDsluCounter, 4265 mSDsCounter, 0 mSdLazyCounter, 4307 mSolverCounterSat, 4839 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7959 SdHoareTripleChecker+Valid, 6121 SdHoareTripleChecker+Invalid, 9146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4839 IncrementalHoareTripleChecker+Valid, 4307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-11-23 10:23:10,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7959 Valid, 6121 Invalid, 9146 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4839 Valid, 4307 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2023-11-23 10:23:10,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14545 states. [2023-11-23 10:23:11,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14545 to 13530. [2023-11-23 10:23:11,376 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) [2023-11-23 10:23:11,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13530 states to 13530 states and 21841 transitions. [2023-11-23 10:23:11,442 INFO L78 Accepts]: Start accepts. Automaton has 13530 states and 21841 transitions. Word has length 175 [2023-11-23 10:23:11,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:23:11,442 INFO L495 AbstractCegarLoop]: Abstraction has 13530 states and 21841 transitions. [2023-11-23 10:23:11,443 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) [2023-11-23 10:23:11,443 INFO L276 IsEmpty]: Start isEmpty. Operand 13530 states and 21841 transitions. [2023-11-23 10:23:11,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-11-23 10:23:11,480 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:23:11,564 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] [2023-11-23 10:23:11,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 10:23:11,564 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:23:11,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:23:11,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1728045944, now seen corresponding path program 1 times [2023-11-23 10:23:11,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:23:11,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533598257] [2023-11-23 10:23:11,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:23:11,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:23:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:11,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:11,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:23:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:23:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:23:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:11,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:11,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:23:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 10:23:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:23:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:23:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 10:23:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 10:23:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-23 10:23:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-23 10:23:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-23 10:23:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-23 10:23:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-11-23 10:23:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-23 10:23:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-23 10:23:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-11-23 10:23:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:23:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-23 10:23:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-23 10:23:11,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-11-23 10:23:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-11-23 10:23:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:11,995 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2023-11-23 10:23:11,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:23:11,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533598257] [2023-11-23 10:23:11,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533598257] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:23:11,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:23:11,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 10:23:11,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393004512] [2023-11-23 10:23:11,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:23:11,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 10:23:11,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:23:11,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 10:23:11,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-23 10:23:11,998 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) [2023-11-23 10:23:16,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:25,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:23:25,641 INFO L93 Difference]: Finished difference Result 31113 states and 51065 transitions. [2023-11-23 10:23:25,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 10:23:25,642 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 [2023-11-23 10:23:25,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:23:25,721 INFO L225 Difference]: With dead ends: 31113 [2023-11-23 10:23:25,721 INFO L226 Difference]: Without dead ends: 17600 [2023-11-23 10:23:25,765 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 [2023-11-23 10:23:25,766 INFO L413 NwaCegarLoop]: 2110 mSDtfsCounter, 5228 mSDsluCounter, 7395 mSDsCounter, 0 mSdLazyCounter, 6165 mSolverCounterSat, 2912 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5543 SdHoareTripleChecker+Valid, 9505 SdHoareTripleChecker+Invalid, 9077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2912 IncrementalHoareTripleChecker+Valid, 6165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2023-11-23 10:23:25,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5543 Valid, 9505 Invalid, 9077 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2912 Valid, 6165 Invalid, 0 Unknown, 0 Unchecked, 12.6s Time] [2023-11-23 10:23:25,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17600 states. [2023-11-23 10:23:26,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17600 to 13544. [2023-11-23 10:23:26,541 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) [2023-11-23 10:23:26,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13544 states to 13544 states and 21855 transitions. [2023-11-23 10:23:26,599 INFO L78 Accepts]: Start accepts. Automaton has 13544 states and 21855 transitions. Word has length 242 [2023-11-23 10:23:26,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:23:26,603 INFO L495 AbstractCegarLoop]: Abstraction has 13544 states and 21855 transitions. [2023-11-23 10:23:26,603 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) [2023-11-23 10:23:26,603 INFO L276 IsEmpty]: Start isEmpty. Operand 13544 states and 21855 transitions. [2023-11-23 10:23:26,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-11-23 10:23:26,635 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:23:26,635 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] [2023-11-23 10:23:26,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 10:23:26,635 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:23:26,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:23:26,636 INFO L85 PathProgramCache]: Analyzing trace with hash 936598106, now seen corresponding path program 1 times [2023-11-23 10:23:26,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:23:26,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589194130] [2023-11-23 10:23:26,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:23:26,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:23:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:23:26,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:23:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:23:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:23:26,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 10:23:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:23:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 10:23:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 10:23:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 10:23:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-23 10:23:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-23 10:23:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-23 10:23:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-23 10:23:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-23 10:23:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-23 10:23:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-23 10:23:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-11-23 10:23:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-23 10:23:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:23:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-23 10:23:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-11-23 10:23:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-23 10:23:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-11-23 10:23:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:27,140 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2023-11-23 10:23:27,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:23:27,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589194130] [2023-11-23 10:23:27,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589194130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:23:27,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:23:27,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 10:23:27,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385808534] [2023-11-23 10:23:27,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:23:27,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 10:23:27,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:23:27,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 10:23:27,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 10:23:27,143 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) [2023-11-23 10:23:41,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:23:41,617 INFO L93 Difference]: Finished difference Result 41970 states and 68256 transitions. [2023-11-23 10:23:41,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 10:23:41,618 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 [2023-11-23 10:23:41,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:23:41,765 INFO L225 Difference]: With dead ends: 41970 [2023-11-23 10:23:41,765 INFO L226 Difference]: Without dead ends: 28404 [2023-11-23 10:23:41,816 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 [2023-11-23 10:23:41,819 INFO L413 NwaCegarLoop]: 3150 mSDtfsCounter, 4507 mSDsluCounter, 7571 mSDsCounter, 0 mSdLazyCounter, 7287 mSolverCounterSat, 2636 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4884 SdHoareTripleChecker+Valid, 10721 SdHoareTripleChecker+Invalid, 9923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2636 IncrementalHoareTripleChecker+Valid, 7287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2023-11-23 10:23:41,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4884 Valid, 10721 Invalid, 9923 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2636 Valid, 7287 Invalid, 0 Unknown, 0 Unchecked, 12.9s Time] [2023-11-23 10:23:41,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28404 states. [2023-11-23 10:23:43,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28404 to 26438. [2023-11-23 10:23:43,132 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) [2023-11-23 10:23:43,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26438 states to 26438 states and 42601 transitions. [2023-11-23 10:23:43,249 INFO L78 Accepts]: Start accepts. Automaton has 26438 states and 42601 transitions. Word has length 256 [2023-11-23 10:23:43,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:23:43,249 INFO L495 AbstractCegarLoop]: Abstraction has 26438 states and 42601 transitions. [2023-11-23 10:23:43,250 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) [2023-11-23 10:23:43,250 INFO L276 IsEmpty]: Start isEmpty. Operand 26438 states and 42601 transitions. [2023-11-23 10:23:43,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-11-23 10:23:43,294 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:23:43,294 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] [2023-11-23 10:23:43,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 10:23:43,294 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:23:43,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:23:43,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1837963486, now seen corresponding path program 1 times [2023-11-23 10:23:43,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:23:43,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815047404] [2023-11-23 10:23:43,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:23:43,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:23:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:43,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:43,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:43,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:43,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:43,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:23:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:43,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:43,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:43,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:23:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:43,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:43,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:43,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:23:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:43,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:43,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:43,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:23:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:43,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:43,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:43,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 10:23:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:43,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 10:23:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:23:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 10:23:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 10:23:44,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 10:23:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:23:44,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 10:23:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 10:23:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 10:23:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:23:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 10:23:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:23:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:23:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 10:23:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 10:23:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:23:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:23:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-11-23 10:23:44,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-11-23 10:23:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-11-23 10:23:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:44,338 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-11-23 10:23:44,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:23:44,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815047404] [2023-11-23 10:23:44,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815047404] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:23:44,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:23:44,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-23 10:23:44,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632178173] [2023-11-23 10:23:44,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:23:44,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 10:23:44,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:23:44,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 10:23:44,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-23 10:23:44,340 INFO L87 Difference]: Start difference. First operand 26438 states and 42601 transitions. Second operand has 13 states, 13 states have (on average 10.538461538461538) internal successors, (137), 4 states have internal predecessors, (137), 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) [2023-11-23 10:23:57,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:23:57,390 INFO L93 Difference]: Finished difference Result 59305 states and 99210 transitions. [2023-11-23 10:23:57,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 10:23:57,391 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.538461538461538) internal successors, (137), 4 states have internal predecessors, (137), 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 258 [2023-11-23 10:23:57,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:23:57,538 INFO L225 Difference]: With dead ends: 59305 [2023-11-23 10:23:57,538 INFO L226 Difference]: Without dead ends: 32892 [2023-11-23 10:23:57,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-11-23 10:23:57,613 INFO L413 NwaCegarLoop]: 1730 mSDtfsCounter, 1576 mSDsluCounter, 8279 mSDsCounter, 0 mSdLazyCounter, 7787 mSolverCounterSat, 843 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1803 SdHoareTripleChecker+Valid, 10009 SdHoareTripleChecker+Invalid, 8630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 843 IncrementalHoareTripleChecker+Valid, 7787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2023-11-23 10:23:57,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1803 Valid, 10009 Invalid, 8630 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [843 Valid, 7787 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2023-11-23 10:23:57,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32892 states. [2023-11-23 10:23:59,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32892 to 30270. [2023-11-23 10:23:59,806 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) [2023-11-23 10:23:59,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30270 states to 30270 states and 49629 transitions. [2023-11-23 10:23:59,957 INFO L78 Accepts]: Start accepts. Automaton has 30270 states and 49629 transitions. Word has length 258 [2023-11-23 10:23:59,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:23:59,957 INFO L495 AbstractCegarLoop]: Abstraction has 30270 states and 49629 transitions. [2023-11-23 10:23:59,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.538461538461538) internal successors, (137), 4 states have internal predecessors, (137), 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) [2023-11-23 10:23:59,958 INFO L276 IsEmpty]: Start isEmpty. Operand 30270 states and 49629 transitions. [2023-11-23 10:23:59,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-11-23 10:23:59,999 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:23:59,999 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] [2023-11-23 10:24:00,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 10:24:00,000 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:24:00,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:24:00,000 INFO L85 PathProgramCache]: Analyzing trace with hash 999490413, now seen corresponding path program 1 times [2023-11-23 10:24:00,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:24:00,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994769950] [2023-11-23 10:24:00,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:24:00,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:24:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:24:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:24:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:24:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:24:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 10:24:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:24:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:24:00,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 10:24:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 10:24:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 10:24:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:24:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 10:24:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 10:24:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 10:24:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:24:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 10:24:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:24:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:24:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 10:24:00,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 10:24:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:24:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:24:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-23 10:24:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-23 10:24:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-23 10:24:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:00,953 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-11-23 10:24:00,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:24:00,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994769950] [2023-11-23 10:24:00,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994769950] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:24:00,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:24:00,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-23 10:24:00,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908266864] [2023-11-23 10:24:00,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:24:00,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 10:24:00,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:24:00,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 10:24:00,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-11-23 10:24:00,956 INFO L87 Difference]: Start difference. First operand 30270 states and 49629 transitions. Second operand has 14 states, 14 states have (on average 9.928571428571429) internal successors, (139), 4 states have internal predecessors, (139), 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) [2023-11-23 10:24:10,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:24:10,571 INFO L93 Difference]: Finished difference Result 63265 states and 107502 transitions. [2023-11-23 10:24:10,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-23 10:24:10,572 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.928571428571429) internal successors, (139), 4 states have internal predecessors, (139), 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 260 [2023-11-23 10:24:10,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:24:10,731 INFO L225 Difference]: With dead ends: 63265 [2023-11-23 10:24:10,732 INFO L226 Difference]: Without dead ends: 33020 [2023-11-23 10:24:10,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2023-11-23 10:24:10,860 INFO L413 NwaCegarLoop]: 1735 mSDtfsCounter, 2611 mSDsluCounter, 8261 mSDsCounter, 0 mSdLazyCounter, 7057 mSolverCounterSat, 2053 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2840 SdHoareTripleChecker+Valid, 9996 SdHoareTripleChecker+Invalid, 9110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2053 IncrementalHoareTripleChecker+Valid, 7057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-11-23 10:24:10,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2840 Valid, 9996 Invalid, 9110 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2053 Valid, 7057 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-11-23 10:24:10,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33020 states. [2023-11-23 10:24:12,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33020 to 30390. [2023-11-23 10:24:12,874 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) [2023-11-23 10:24:13,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30390 states to 30390 states and 49841 transitions. [2023-11-23 10:24:13,027 INFO L78 Accepts]: Start accepts. Automaton has 30390 states and 49841 transitions. Word has length 260 [2023-11-23 10:24:13,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:24:13,028 INFO L495 AbstractCegarLoop]: Abstraction has 30390 states and 49841 transitions. [2023-11-23 10:24:13,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.928571428571429) internal successors, (139), 4 states have internal predecessors, (139), 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) [2023-11-23 10:24:13,028 INFO L276 IsEmpty]: Start isEmpty. Operand 30390 states and 49841 transitions. [2023-11-23 10:24:13,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-11-23 10:24:13,070 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:24:13,071 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] [2023-11-23 10:24:13,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 10:24:13,071 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:24:13,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:24:13,071 INFO L85 PathProgramCache]: Analyzing trace with hash 2056221615, now seen corresponding path program 1 times [2023-11-23 10:24:13,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:24:13,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004825646] [2023-11-23 10:24:13,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:24:13,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:24:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:13,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:13,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:13,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:13,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:24:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:13,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:13,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:13,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:24:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:13,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:13,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:13,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:24:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:13,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:13,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:13,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:24:13,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:13,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:13,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 10:24:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:13,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:13,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:24:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:24:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 10:24:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 10:24:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 10:24:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:24:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:14,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 10:24:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 10:24:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 10:24:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:24:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 10:24:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:24:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:24:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 10:24:14,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 10:24:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:24:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:24:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-23 10:24:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-23 10:24:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-23 10:24:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,747 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-11-23 10:24:14,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:24:14,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004825646] [2023-11-23 10:24:14,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004825646] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:24:14,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087562923] [2023-11-23 10:24:14,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:24:14,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:24:14,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:24:14,749 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 10:24:14,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 10:24:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:15,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 2847 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 10:24:15,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 10:24:15,623 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-23 10:24:15,624 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 10:24:15,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087562923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:24:15,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 10:24:15,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 15 [2023-11-23 10:24:15,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089874898] [2023-11-23 10:24:15,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:24:15,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 10:24:15,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:24:15,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 10:24:15,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2023-11-23 10:24:15,626 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) [2023-11-23 10:24:17,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:24:17,719 INFO L93 Difference]: Finished difference Result 60723 states and 99511 transitions. [2023-11-23 10:24:17,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 10:24:17,720 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 [2023-11-23 10:24:17,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:24:17,858 INFO L225 Difference]: With dead ends: 60723 [2023-11-23 10:24:17,859 INFO L226 Difference]: Without dead ends: 30358 [2023-11-23 10:24:17,959 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 [2023-11-23 10:24:17,959 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 [2023-11-23 10:24:17,960 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] [2023-11-23 10:24:17,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30358 states. [2023-11-23 10:24:19,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30358 to 30358. [2023-11-23 10:24:19,869 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) [2023-11-23 10:24:20,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30358 states to 30358 states and 49685 transitions. [2023-11-23 10:24:20,027 INFO L78 Accepts]: Start accepts. Automaton has 30358 states and 49685 transitions. Word has length 260 [2023-11-23 10:24:20,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:24:20,027 INFO L495 AbstractCegarLoop]: Abstraction has 30358 states and 49685 transitions. [2023-11-23 10:24:20,027 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) [2023-11-23 10:24:20,028 INFO L276 IsEmpty]: Start isEmpty. Operand 30358 states and 49685 transitions. [2023-11-23 10:24:20,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-11-23 10:24:20,070 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:24:20,070 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] [2023-11-23 10:24:20,106 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 10:24:20,285 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 [2023-11-23 10:24:20,285 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:24:20,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:24:20,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1707519459, now seen corresponding path program 1 times [2023-11-23 10:24:20,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:24:20,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953529045] [2023-11-23 10:24:20,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:24:20,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:24:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:24:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:24:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:21,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:24:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:21,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:24:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 10:24:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:21,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 10:24:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:24:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 10:24:21,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 10:24:21,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 10:24:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:24:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 10:24:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 10:24:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 10:24:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:24:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 10:24:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:24:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:24:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 10:24:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 10:24:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:21,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:24:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:24:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-11-23 10:24:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-23 10:24:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-23 10:24:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:21,758 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-11-23 10:24:21,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:24:21,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953529045] [2023-11-23 10:24:21,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953529045] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:24:21,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453560716] [2023-11-23 10:24:21,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:24:21,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:24:21,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:24:21,773 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 10:24:21,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 10:24:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:22,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 2849 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 10:24:22,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 10:24:22,618 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-23 10:24:22,619 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 10:24:22,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453560716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:24:22,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 10:24:22,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 15 [2023-11-23 10:24:22,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113610633] [2023-11-23 10:24:22,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:24:22,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 10:24:22,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:24:22,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 10:24:22,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2023-11-23 10:24:22,621 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) [2023-11-23 10:24:25,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:24:25,005 INFO L93 Difference]: Finished difference Result 60659 states and 99199 transitions. [2023-11-23 10:24:25,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 10:24:25,006 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 [2023-11-23 10:24:25,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:24:25,140 INFO L225 Difference]: With dead ends: 60659 [2023-11-23 10:24:25,140 INFO L226 Difference]: Without dead ends: 30326 [2023-11-23 10:24:25,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2023-11-23 10:24:25,232 INFO L413 NwaCegarLoop]: 2486 mSDtfsCounter, 2608 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2023-11-23 10:24:25,232 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] [2023-11-23 10:24:25,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30326 states. [2023-11-23 10:24:27,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30326 to 30326. [2023-11-23 10:24:27,190 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) [2023-11-23 10:24:27,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30326 states to 30326 states and 49529 transitions. [2023-11-23 10:24:27,316 INFO L78 Accepts]: Start accepts. Automaton has 30326 states and 49529 transitions. Word has length 261 [2023-11-23 10:24:27,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:24:27,317 INFO L495 AbstractCegarLoop]: Abstraction has 30326 states and 49529 transitions. [2023-11-23 10:24:27,317 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) [2023-11-23 10:24:27,317 INFO L276 IsEmpty]: Start isEmpty. Operand 30326 states and 49529 transitions. [2023-11-23 10:24:27,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-11-23 10:24:27,354 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:24:27,354 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] [2023-11-23 10:24:27,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 10:24:27,571 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 [2023-11-23 10:24:27,572 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:24:27,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:24:27,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1448614174, now seen corresponding path program 1 times [2023-11-23 10:24:27,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:24:27,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106390445] [2023-11-23 10:24:27,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:24:27,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:24:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:28,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:24:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:24:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:24:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:28,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:24:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 10:24:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 10:24:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:24:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 10:24:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 10:24:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 10:24:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:24:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:28,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 10:24:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 10:24:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 10:24:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:24:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 10:24:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:24:28,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:24:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 10:24:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 10:24:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:24:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:24:28,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-11-23 10:24:28,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-11-23 10:24:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-11-23 10:24:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:28,849 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-11-23 10:24:28,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:24:28,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106390445] [2023-11-23 10:24:28,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106390445] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:24:28,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835954267] [2023-11-23 10:24:28,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:24:28,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:24:28,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:24:28,851 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 10:24:28,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 10:24:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:29,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 2843 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 10:24:29,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 10:24:29,871 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-23 10:24:29,872 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 10:24:29,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835954267] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:24:29,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 10:24:29,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 15 [2023-11-23 10:24:29,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528189937] [2023-11-23 10:24:29,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:24:29,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 10:24:29,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:24:29,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 10:24:29,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2023-11-23 10:24:29,874 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) [2023-11-23 10:24:32,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:24:32,107 INFO L93 Difference]: Finished difference Result 60595 states and 98887 transitions. [2023-11-23 10:24:32,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 10:24:32,107 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 [2023-11-23 10:24:32,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:24:32,240 INFO L225 Difference]: With dead ends: 60595 [2023-11-23 10:24:32,240 INFO L226 Difference]: Without dead ends: 30294 [2023-11-23 10:24:32,330 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 [2023-11-23 10:24:32,331 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 [2023-11-23 10:24:32,331 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] [2023-11-23 10:24:32,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30294 states. [2023-11-23 10:24:34,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30294 to 30294. [2023-11-23 10:24:34,232 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) [2023-11-23 10:24:34,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30294 states to 30294 states and 49373 transitions. [2023-11-23 10:24:34,502 INFO L78 Accepts]: Start accepts. Automaton has 30294 states and 49373 transitions. Word has length 258 [2023-11-23 10:24:34,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:24:34,502 INFO L495 AbstractCegarLoop]: Abstraction has 30294 states and 49373 transitions. [2023-11-23 10:24:34,503 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) [2023-11-23 10:24:34,503 INFO L276 IsEmpty]: Start isEmpty. Operand 30294 states and 49373 transitions. [2023-11-23 10:24:34,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-11-23 10:24:34,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:24:34,538 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] [2023-11-23 10:24:34,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-23 10:24:34,754 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 [2023-11-23 10:24:34,755 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:24:34,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:24:34,755 INFO L85 PathProgramCache]: Analyzing trace with hash 2041506934, now seen corresponding path program 1 times [2023-11-23 10:24:34,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:24:34,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102640092] [2023-11-23 10:24:34,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:24:34,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:24:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:35,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:24:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:24:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:24:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:24:35,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 10:24:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-23 10:24:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:24:35,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:35,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 10:24:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 10:24:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 10:24:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:24:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 10:24:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 10:24:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 10:24:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:24:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 10:24:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:24:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 10:24:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:35,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 10:24:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:36,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 10:24:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:36,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:36,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:36,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:24:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:36,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:24:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:36,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-11-23 10:24:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:36,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-23 10:24:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:36,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:36,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-11-23 10:24:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:36,053 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-11-23 10:24:36,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:24:36,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102640092] [2023-11-23 10:24:36,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102640092] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:24:36,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441136459] [2023-11-23 10:24:36,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:24:36,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:24:36,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:24:36,055 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 10:24:36,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 10:24:36,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:36,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 2845 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 10:24:36,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 10:24:36,893 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-23 10:24:36,894 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 10:24:36,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441136459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:24:36,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 10:24:36,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 15 [2023-11-23 10:24:36,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817762655] [2023-11-23 10:24:36,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:24:36,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 10:24:36,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:24:36,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 10:24:36,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2023-11-23 10:24:36,895 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) [2023-11-23 10:24:39,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:24:39,005 INFO L93 Difference]: Finished difference Result 60531 states and 98575 transitions. [2023-11-23 10:24:39,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 10:24:39,006 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 [2023-11-23 10:24:39,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:24:39,120 INFO L225 Difference]: With dead ends: 60531 [2023-11-23 10:24:39,120 INFO L226 Difference]: Without dead ends: 30262 [2023-11-23 10:24:39,199 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 [2023-11-23 10:24:39,199 INFO L413 NwaCegarLoop]: 2478 mSDtfsCounter, 2602 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-11-23 10:24:39,200 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] [2023-11-23 10:24:39,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30262 states.