./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1-todo/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--ipheth.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6ae2ee47 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1-todo/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--ipheth.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1a07d05bdda9164d6ceaf1185c6dc5dd43200f7171a99953930c3f9edfac2ac7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 18:49:09,109 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 18:49:09,145 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-22 18:49:09,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 18:49:09,148 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 18:49:09,163 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 18:49:09,163 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 18:49:09,164 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 18:49:09,164 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 18:49:09,164 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 18:49:09,165 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 18:49:09,165 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 18:49:09,165 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 18:49:09,166 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 18:49:09,166 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 18:49:09,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 18:49:09,166 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 18:49:09,167 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 18:49:09,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 18:49:09,167 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 18:49:09,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 18:49:09,168 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 18:49:09,168 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 18:49:09,169 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 18:49:09,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 18:49:09,169 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 18:49:09,170 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 18:49:09,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 18:49:09,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 18:49:09,170 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 18:49:09,171 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 18:49:09,171 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 18:49:09,171 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 18:49:09,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 18:49:09,172 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 18:49:09,172 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 18:49:09,172 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 18:49:09,172 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 18:49:09,173 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 18:49:09,173 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a07d05bdda9164d6ceaf1185c6dc5dd43200f7171a99953930c3f9edfac2ac7 [2023-11-22 18:49:09,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 18:49:09,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 18:49:09,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 18:49:09,345 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 18:49:09,346 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 18:49:09,347 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1-todo/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--ipheth.ko-entry_point.cil.out.i [2023-11-22 18:49:10,364 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 18:49:10,795 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 18:49:10,798 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1-todo/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--ipheth.ko-entry_point.cil.out.i [2023-11-22 18:49:10,826 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84eeb774c/d9cbdc0b76ab426383b0df5f3c881125/FLAG329bbcc4a [2023-11-22 18:49:10,843 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84eeb774c/d9cbdc0b76ab426383b0df5f3c881125 [2023-11-22 18:49:10,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 18:49:10,847 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 18:49:10,849 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 18:49:10,849 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 18:49:10,852 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 18:49:10,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:49:10" (1/1) ... [2023-11-22 18:49:10,854 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3db52518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:49:10, skipping insertion in model container [2023-11-22 18:49:10,854 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:49:10" (1/1) ... [2023-11-22 18:49:10,941 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 18:49:11,509 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1-todo/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--ipheth.ko-entry_point.cil.out.i[159689,159702] [2023-11-22 18:49:11,669 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 18:49:11,692 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 18:49:11,768 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; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5302] [2023-11-22 18:49:11,770 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; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5309] [2023-11-22 18:49:11,770 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; btr %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5317-5318] [2023-11-22 18:49:11,783 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1-todo/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--ipheth.ko-entry_point.cil.out.i[159689,159702] [2023-11-22 18:49:11,982 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 18:49:12,075 INFO L206 MainTranslator]: Completed translation [2023-11-22 18:49:12,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:49:12 WrapperNode [2023-11-22 18:49:12,077 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 18:49:12,078 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 18:49:12,078 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 18:49:12,078 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 18:49:12,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:49:12" (1/1) ... [2023-11-22 18:49:12,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:49:12" (1/1) ... [2023-11-22 18:49:12,209 INFO L138 Inliner]: procedures = 165, calls = 708, calls flagged for inlining = 85, calls inlined = 85, statements flattened = 1855 [2023-11-22 18:49:12,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 18:49:12,210 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 18:49:12,211 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 18:49:12,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 18:49:12,219 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:49:12" (1/1) ... [2023-11-22 18:49:12,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:49:12" (1/1) ... [2023-11-22 18:49:12,238 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:49:12" (1/1) ... [2023-11-22 18:49:12,453 INFO L189 HeapSplitter]: Split 423 memory accesses to 8 slices as follows [363, 2, 0, 0, 7, 2, 42, 7] [2023-11-22 18:49:12,456 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:49:12" (1/1) ... [2023-11-22 18:49:12,456 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:49:12" (1/1) ... [2023-11-22 18:49:12,534 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:49:12" (1/1) ... [2023-11-22 18:49:12,549 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:49:12" (1/1) ... [2023-11-22 18:49:12,556 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:49:12" (1/1) ... [2023-11-22 18:49:12,565 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:49:12" (1/1) ... [2023-11-22 18:49:12,578 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 18:49:12,579 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 18:49:12,579 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 18:49:12,580 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 18:49:12,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:49:12" (1/1) ... [2023-11-22 18:49:12,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 18:49:12,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:49:12,607 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 18:49:12,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 18:49:12,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_12 [2023-11-22 18:49:12,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_12 [2023-11-22 18:49:12,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-22 18:49:12,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-22 18:49:12,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-22 18:49:12,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-22 18:49:12,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-22 18:49:12,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-22 18:49:12,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-22 18:49:12,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-22 18:49:12,654 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-22 18:49:12,654 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-22 18:49:12,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_8 [2023-11-22 18:49:12,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_8 [2023-11-22 18:49:12,655 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_rx_submit [2023-11-22 18:49:12,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_rx_submit [2023-11-22 18:49:12,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_9 [2023-11-22 18:49:12,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_9 [2023-11-22 18:49:12,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-22 18:49:12,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-22 18:49:12,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-22 18:49:12,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-22 18:49:12,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-22 18:49:12,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-22 18:49:12,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-22 18:49:12,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-22 18:49:12,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-22 18:49:12,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-22 18:49:12,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-22 18:49:12,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-22 18:49:12,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-22 18:49:12,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-22 18:49:12,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-22 18:49:12,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-22 18:49:12,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-22 18:49:12,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-22 18:49:12,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-22 18:49:12,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-22 18:49:12,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-22 18:49:12,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-22 18:49:12,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-22 18:49:12,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-22 18:49:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-22 18:49:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-22 18:49:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-22 18:49:12,660 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-22 18:49:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-22 18:49:12,660 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-22 18:49:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_rcvbulk_callback [2023-11-22 18:49:12,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_rcvbulk_callback [2023-11-22 18:49:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-22 18:49:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-22 18:49:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-11-22 18:49:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-11-22 18:49:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2023-11-22 18:49:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2023-11-22 18:49:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2023-11-22 18:49:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2023-11-22 18:49:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2023-11-22 18:49:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2023-11-22 18:49:12,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2023-11-22 18:49:12,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2023-11-22 18:49:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2023-11-22 18:49:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2023-11-22 18:49:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2023-11-22 18:49:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2023-11-22 18:49:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2023-11-22 18:49:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2023-11-22 18:49:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2023-11-22 18:49:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2023-11-22 18:49:12,663 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-22 18:49:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-22 18:49:12,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-22 18:49:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-22 18:49:12,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-11-22 18:49:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-11-22 18:49:12,663 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-22 18:49:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-22 18:49:12,664 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-22 18:49:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-22 18:49:12,664 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_disconnect [2023-11-22 18:49:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_disconnect [2023-11-22 18:49:12,664 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_tx_timeout [2023-11-22 18:49:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_tx_timeout [2023-11-22 18:49:12,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-22 18:49:12,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-22 18:49:12,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-22 18:49:12,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-22 18:49:12,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-22 18:49:12,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-22 18:49:12,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-22 18:49:12,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-22 18:49:12,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-22 18:49:12,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-22 18:49:12,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-22 18:49:12,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-22 18:49:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-22 18:49:12,666 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-22 18:49:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_carrier_set [2023-11-22 18:49:12,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_carrier_set [2023-11-22 18:49:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-22 18:49:12,666 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-22 18:49:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-22 18:49:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2023-11-22 18:49:12,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2023-11-22 18:49:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 18:49:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-22 18:49:12,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-22 18:49:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_free_urbs [2023-11-22 18:49:12,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_free_urbs [2023-11-22 18:49:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 18:49:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-22 18:49:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-22 18:49:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-22 18:49:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-22 18:49:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-22 18:49:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-22 18:49:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-22 18:49:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-22 18:49:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-22 18:49:12,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-22 18:49:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-11-22 18:49:12,669 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-11-22 18:49:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2023-11-22 18:49:12,669 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2023-11-22 18:49:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-22 18:49:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-22 18:49:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-22 18:49:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-22 18:49:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-22 18:49:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-22 18:49:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-22 18:49:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-22 18:49:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-22 18:49:12,670 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-22 18:49:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 18:49:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-22 18:49:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-22 18:49:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-22 18:49:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-22 18:49:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-22 18:49:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-22 18:49:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-22 18:49:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-22 18:49:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-22 18:49:12,671 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-22 18:49:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2023-11-22 18:49:12,671 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2023-11-22 18:49:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-22 18:49:12,672 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-22 18:49:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-22 18:49:12,672 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-22 18:49:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-11-22 18:49:12,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-11-22 18:49:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-22 18:49:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-22 18:49:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-22 18:49:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-22 18:49:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-22 18:49:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-22 18:49:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-22 18:49:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-22 18:49:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2023-11-22 18:49:12,673 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2023-11-22 18:49:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-22 18:49:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-22 18:49:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-22 18:49:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-22 18:49:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-22 18:49:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-22 18:49:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-22 18:49:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-22 18:49:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-22 18:49:12,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-22 18:49:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-22 18:49:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-22 18:49:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 18:49:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 18:49:12,995 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 18:49:12,997 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 18:49:13,116 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-22 18:49:13,560 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2023-11-22 18:49:14,259 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 18:49:14,414 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 18:49:14,414 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-22 18:49:14,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:49:14 BoogieIcfgContainer [2023-11-22 18:49:14,415 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 18:49:14,416 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 18:49:14,416 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 18:49:14,419 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 18:49:14,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:49:10" (1/3) ... [2023-11-22 18:49:14,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47115ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:49:14, skipping insertion in model container [2023-11-22 18:49:14,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:49:12" (2/3) ... [2023-11-22 18:49:14,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47115ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:49:14, skipping insertion in model container [2023-11-22 18:49:14,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:49:14" (3/3) ... [2023-11-22 18:49:14,421 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--ipheth.ko-entry_point.cil.out.i [2023-11-22 18:49:14,433 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 18:49:14,434 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 18:49:14,472 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 18:49:14,476 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;@715c5777, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 18:49:14,477 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 18:49:14,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 480 states, 322 states have (on average 1.4037267080745341) internal successors, (452), 341 states have internal predecessors, (452), 119 states have call successors, (119), 39 states have call predecessors, (119), 37 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2023-11-22 18:49:14,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-22 18:49:14,492 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:49:14,493 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:49:14,493 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:49:14,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:49:14,499 INFO L85 PathProgramCache]: Analyzing trace with hash -630056104, now seen corresponding path program 1 times [2023-11-22 18:49:14,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:49:14,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462133945] [2023-11-22 18:49:14,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:14,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:49:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:14,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:15,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:15,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:15,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:49:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:15,033 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-22 18:49:15,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:49:15,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462133945] [2023-11-22 18:49:15,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462133945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:49:15,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:49:15,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-22 18:49:15,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787363801] [2023-11-22 18:49:15,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:49:15,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 18:49:15,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:49:15,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 18:49:15,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 18:49:15,069 INFO L87 Difference]: Start difference. First operand has 480 states, 322 states have (on average 1.4037267080745341) internal successors, (452), 341 states have internal predecessors, (452), 119 states have call successors, (119), 39 states have call predecessors, (119), 37 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-22 18:49:16,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:49:16,881 INFO L93 Difference]: Finished difference Result 1487 states and 2199 transitions. [2023-11-22 18:49:16,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 18:49:16,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2023-11-22 18:49:16,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:49:16,898 INFO L225 Difference]: With dead ends: 1487 [2023-11-22 18:49:16,898 INFO L226 Difference]: Without dead ends: 989 [2023-11-22 18:49:16,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:49:16,905 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 896 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-22 18:49:16,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 1093 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-22 18:49:16,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2023-11-22 18:49:17,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 913. [2023-11-22 18:49:17,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 625 states have (on average 1.352) internal successors, (845), 641 states have internal predecessors, (845), 215 states have call successors, (215), 73 states have call predecessors, (215), 72 states have return successors, (210), 204 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-22 18:49:17,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1270 transitions. [2023-11-22 18:49:17,033 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1270 transitions. Word has length 29 [2023-11-22 18:49:17,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:49:17,034 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1270 transitions. [2023-11-22 18:49:17,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-22 18:49:17,034 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1270 transitions. [2023-11-22 18:49:17,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-22 18:49:17,036 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:49:17,036 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:49:17,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 18:49:17,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:49:17,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:49:17,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1891896340, now seen corresponding path program 1 times [2023-11-22 18:49:17,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:49:17,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428238649] [2023-11-22 18:49:17,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:17,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:49:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:17,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:17,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:17,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:49:17,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:17,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:49:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:17,160 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-22 18:49:17,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:49:17,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428238649] [2023-11-22 18:49:17,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428238649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:49:17,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:49:17,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-22 18:49:17,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384454736] [2023-11-22 18:49:17,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:49:17,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 18:49:17,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:49:17,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 18:49:17,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 18:49:17,163 INFO L87 Difference]: Start difference. First operand 913 states and 1270 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 18:49:18,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:49:18,056 INFO L93 Difference]: Finished difference Result 1015 states and 1438 transitions. [2023-11-22 18:49:18,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 18:49:18,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 38 [2023-11-22 18:49:18,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:49:18,061 INFO L225 Difference]: With dead ends: 1015 [2023-11-22 18:49:18,061 INFO L226 Difference]: Without dead ends: 1002 [2023-11-22 18:49:18,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:49:18,062 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 738 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-22 18:49:18,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 696 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-22 18:49:18,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2023-11-22 18:49:18,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 913. [2023-11-22 18:49:18,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 625 states have (on average 1.3504) internal successors, (844), 641 states have internal predecessors, (844), 215 states have call successors, (215), 73 states have call predecessors, (215), 72 states have return successors, (210), 204 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-22 18:49:18,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1269 transitions. [2023-11-22 18:49:18,106 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1269 transitions. Word has length 38 [2023-11-22 18:49:18,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:49:18,106 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1269 transitions. [2023-11-22 18:49:18,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 18:49:18,107 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1269 transitions. [2023-11-22 18:49:18,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-22 18:49:18,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:49:18,109 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:49:18,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-22 18:49:18,109 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:49:18,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:49:18,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1834638038, now seen corresponding path program 1 times [2023-11-22 18:49:18,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:49:18,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194598286] [2023-11-22 18:49:18,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:18,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:49:18,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:18,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:18,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:18,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:18,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:49:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:18,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:49:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:18,364 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-22 18:49:18,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:49:18,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194598286] [2023-11-22 18:49:18,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194598286] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:49:18,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:49:18,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-22 18:49:18,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981221523] [2023-11-22 18:49:18,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:49:18,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 18:49:18,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:49:18,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 18:49:18,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 18:49:18,366 INFO L87 Difference]: Start difference. First operand 913 states and 1269 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 18:49:19,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:49:19,888 INFO L93 Difference]: Finished difference Result 2876 states and 4157 transitions. [2023-11-22 18:49:19,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 18:49:19,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 38 [2023-11-22 18:49:19,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:49:19,897 INFO L225 Difference]: With dead ends: 2876 [2023-11-22 18:49:19,897 INFO L226 Difference]: Without dead ends: 1970 [2023-11-22 18:49:19,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:49:19,901 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 902 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-22 18:49:19,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 1090 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-22 18:49:19,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2023-11-22 18:49:19,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1840. [2023-11-22 18:49:20,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1840 states, 1257 states have (on average 1.345266507557677) internal successors, (1691), 1289 states have internal predecessors, (1691), 428 states have call successors, (428), 145 states have call predecessors, (428), 154 states have return successors, (477), 417 states have call predecessors, (477), 423 states have call successors, (477) [2023-11-22 18:49:20,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1840 states to 1840 states and 2596 transitions. [2023-11-22 18:49:20,009 INFO L78 Accepts]: Start accepts. Automaton has 1840 states and 2596 transitions. Word has length 38 [2023-11-22 18:49:20,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:49:20,009 INFO L495 AbstractCegarLoop]: Abstraction has 1840 states and 2596 transitions. [2023-11-22 18:49:20,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 18:49:20,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1840 states and 2596 transitions. [2023-11-22 18:49:20,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-22 18:49:20,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:49:20,011 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:49:20,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-22 18:49:20,011 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:49:20,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:49:20,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1039470687, now seen corresponding path program 1 times [2023-11-22 18:49:20,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:49:20,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300221282] [2023-11-22 18:49:20,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:20,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:49:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:20,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:20,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:20,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:49:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:20,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:49:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:20,186 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-22 18:49:20,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:49:20,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300221282] [2023-11-22 18:49:20,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300221282] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:49:20,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:49:20,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-22 18:49:20,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804826031] [2023-11-22 18:49:20,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:49:20,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 18:49:20,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:49:20,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 18:49:20,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 18:49:20,188 INFO L87 Difference]: Start difference. First operand 1840 states and 2596 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 18:49:21,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:49:21,236 INFO L93 Difference]: Finished difference Result 1962 states and 2824 transitions. [2023-11-22 18:49:21,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 18:49:21,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 39 [2023-11-22 18:49:21,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:49:21,245 INFO L225 Difference]: With dead ends: 1962 [2023-11-22 18:49:21,245 INFO L226 Difference]: Without dead ends: 1959 [2023-11-22 18:49:21,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:49:21,249 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 720 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-22 18:49:21,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 654 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-22 18:49:21,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1959 states. [2023-11-22 18:49:21,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1959 to 1839. [2023-11-22 18:49:21,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1839 states, 1257 states have (on average 1.3444709626093874) internal successors, (1690), 1288 states have internal predecessors, (1690), 427 states have call successors, (427), 145 states have call predecessors, (427), 154 states have return successors, (477), 417 states have call predecessors, (477), 423 states have call successors, (477) [2023-11-22 18:49:21,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2594 transitions. [2023-11-22 18:49:21,377 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2594 transitions. Word has length 39 [2023-11-22 18:49:21,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:49:21,377 INFO L495 AbstractCegarLoop]: Abstraction has 1839 states and 2594 transitions. [2023-11-22 18:49:21,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 18:49:21,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2594 transitions. [2023-11-22 18:49:21,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-22 18:49:21,379 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:49:21,379 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:49:21,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-22 18:49:21,379 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:49:21,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:49:21,379 INFO L85 PathProgramCache]: Analyzing trace with hash 2135885581, now seen corresponding path program 1 times [2023-11-22 18:49:21,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:49:21,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587851964] [2023-11-22 18:49:21,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:21,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:49:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:21,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:21,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:21,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:49:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:21,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:49:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:21,482 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-22 18:49:21,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:49:21,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587851964] [2023-11-22 18:49:21,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587851964] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:49:21,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:49:21,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-22 18:49:21,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863859650] [2023-11-22 18:49:21,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:49:21,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 18:49:21,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:49:21,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 18:49:21,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 18:49:21,484 INFO L87 Difference]: Start difference. First operand 1839 states and 2594 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 18:49:22,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:49:22,399 INFO L93 Difference]: Finished difference Result 1961 states and 2822 transitions. [2023-11-22 18:49:22,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 18:49:22,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 40 [2023-11-22 18:49:22,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:49:22,408 INFO L225 Difference]: With dead ends: 1961 [2023-11-22 18:49:22,408 INFO L226 Difference]: Without dead ends: 1958 [2023-11-22 18:49:22,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:49:22,410 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 718 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-22 18:49:22,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 650 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-22 18:49:22,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2023-11-22 18:49:22,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1838. [2023-11-22 18:49:22,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1257 states have (on average 1.3436754176610979) internal successors, (1689), 1287 states have internal predecessors, (1689), 426 states have call successors, (426), 145 states have call predecessors, (426), 154 states have return successors, (477), 417 states have call predecessors, (477), 423 states have call successors, (477) [2023-11-22 18:49:22,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2592 transitions. [2023-11-22 18:49:22,509 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2592 transitions. Word has length 40 [2023-11-22 18:49:22,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:49:22,509 INFO L495 AbstractCegarLoop]: Abstraction has 1838 states and 2592 transitions. [2023-11-22 18:49:22,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 18:49:22,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2592 transitions. [2023-11-22 18:49:22,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-22 18:49:22,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:49:22,511 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:49:22,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-22 18:49:22,511 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:49:22,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:49:22,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1787686948, now seen corresponding path program 1 times [2023-11-22 18:49:22,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:49:22,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487483021] [2023-11-22 18:49:22,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:22,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:49:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:22,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:22,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:22,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:49:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:22,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:49:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:22,672 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-22 18:49:22,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:49:22,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487483021] [2023-11-22 18:49:22,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487483021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:49:22,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:49:22,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-22 18:49:22,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190072358] [2023-11-22 18:49:22,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:49:22,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 18:49:22,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:49:22,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 18:49:22,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 18:49:22,674 INFO L87 Difference]: Start difference. First operand 1838 states and 2592 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 18:49:23,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:49:23,591 INFO L93 Difference]: Finished difference Result 1960 states and 2820 transitions. [2023-11-22 18:49:23,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 18:49:23,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 41 [2023-11-22 18:49:23,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:49:23,598 INFO L225 Difference]: With dead ends: 1960 [2023-11-22 18:49:23,599 INFO L226 Difference]: Without dead ends: 1957 [2023-11-22 18:49:23,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:49:23,600 INFO L413 NwaCegarLoop]: 439 mSDtfsCounter, 715 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-22 18:49:23,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 647 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-22 18:49:23,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1957 states. [2023-11-22 18:49:23,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1957 to 1837. [2023-11-22 18:49:23,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1837 states, 1257 states have (on average 1.3428798727128082) internal successors, (1688), 1286 states have internal predecessors, (1688), 425 states have call successors, (425), 145 states have call predecessors, (425), 154 states have return successors, (477), 417 states have call predecessors, (477), 423 states have call successors, (477) [2023-11-22 18:49:23,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1837 states to 1837 states and 2590 transitions. [2023-11-22 18:49:23,676 INFO L78 Accepts]: Start accepts. Automaton has 1837 states and 2590 transitions. Word has length 41 [2023-11-22 18:49:23,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:49:23,677 INFO L495 AbstractCegarLoop]: Abstraction has 1837 states and 2590 transitions. [2023-11-22 18:49:23,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 18:49:23,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1837 states and 2590 transitions. [2023-11-22 18:49:23,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-22 18:49:23,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:49:23,679 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:49:23,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-22 18:49:23,679 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:49:23,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:49:23,680 INFO L85 PathProgramCache]: Analyzing trace with hash -416531216, now seen corresponding path program 1 times [2023-11-22 18:49:23,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:49:23,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162948674] [2023-11-22 18:49:23,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:23,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:49:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:23,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:23,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:23,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:49:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:23,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:49:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:23,786 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-22 18:49:23,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:49:23,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162948674] [2023-11-22 18:49:23,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162948674] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:49:23,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:49:23,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-22 18:49:23,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658653768] [2023-11-22 18:49:23,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:49:23,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 18:49:23,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:49:23,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 18:49:23,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 18:49:23,788 INFO L87 Difference]: Start difference. First operand 1837 states and 2590 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 18:49:24,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:49:24,696 INFO L93 Difference]: Finished difference Result 1959 states and 2818 transitions. [2023-11-22 18:49:24,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 18:49:24,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2023-11-22 18:49:24,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:49:24,709 INFO L225 Difference]: With dead ends: 1959 [2023-11-22 18:49:24,709 INFO L226 Difference]: Without dead ends: 1950 [2023-11-22 18:49:24,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:49:24,711 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 712 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-22 18:49:24,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 646 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-22 18:49:24,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2023-11-22 18:49:24,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1830. [2023-11-22 18:49:24,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1830 states, 1251 states have (on average 1.3421262989608314) internal successors, (1679), 1279 states have internal predecessors, (1679), 424 states have call successors, (424), 145 states have call predecessors, (424), 154 states have return successors, (477), 417 states have call predecessors, (477), 423 states have call successors, (477) [2023-11-22 18:49:24,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1830 states to 1830 states and 2580 transitions. [2023-11-22 18:49:24,827 INFO L78 Accepts]: Start accepts. Automaton has 1830 states and 2580 transitions. Word has length 42 [2023-11-22 18:49:24,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:49:24,828 INFO L495 AbstractCegarLoop]: Abstraction has 1830 states and 2580 transitions. [2023-11-22 18:49:24,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 18:49:24,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1830 states and 2580 transitions. [2023-11-22 18:49:24,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-22 18:49:24,833 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:49:24,833 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:49:24,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-22 18:49:24,833 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:49:24,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:49:24,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1514619759, now seen corresponding path program 1 times [2023-11-22 18:49:24,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:49:24,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877529966] [2023-11-22 18:49:24,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:24,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:49:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:25,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:25,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:25,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:49:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:25,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-22 18:49:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:25,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-22 18:49:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:25,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-22 18:49:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:25,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 18:49:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:25,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:49:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:25,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-22 18:49:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:25,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-22 18:49:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:25,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-22 18:49:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:25,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 18:49:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:25,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:25,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:25,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:25,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-22 18:49:25,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:25,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-22 18:49:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:25,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-22 18:49:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:25,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 18:49:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:25,120 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-22 18:49:25,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:49:25,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877529966] [2023-11-22 18:49:25,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877529966] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:49:25,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:49:25,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 18:49:25,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461995010] [2023-11-22 18:49:25,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:49:25,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 18:49:25,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:49:25,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 18:49:25,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-22 18:49:25,123 INFO L87 Difference]: Start difference. First operand 1830 states and 2580 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-22 18:49:26,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:49:26,913 INFO L93 Difference]: Finished difference Result 5402 states and 7680 transitions. [2023-11-22 18:49:26,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 18:49:26,913 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 139 [2023-11-22 18:49:26,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:49:26,926 INFO L225 Difference]: With dead ends: 5402 [2023-11-22 18:49:26,926 INFO L226 Difference]: Without dead ends: 3579 [2023-11-22 18:49:26,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2023-11-22 18:49:26,932 INFO L413 NwaCegarLoop]: 439 mSDtfsCounter, 1050 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 613 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 613 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-22 18:49:26,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 1694 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [613 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-22 18:49:26,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3579 states. [2023-11-22 18:49:27,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3579 to 3236. [2023-11-22 18:49:27,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3236 states, 2193 states have (on average 1.3365253077975376) internal successors, (2931), 2251 states have internal predecessors, (2931), 729 states have call successors, (729), 274 states have call predecessors, (729), 313 states have return successors, (878), 730 states have call predecessors, (878), 728 states have call successors, (878) [2023-11-22 18:49:27,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3236 states to 3236 states and 4538 transitions. [2023-11-22 18:49:27,105 INFO L78 Accepts]: Start accepts. Automaton has 3236 states and 4538 transitions. Word has length 139 [2023-11-22 18:49:27,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:49:27,105 INFO L495 AbstractCegarLoop]: Abstraction has 3236 states and 4538 transitions. [2023-11-22 18:49:27,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-22 18:49:27,105 INFO L276 IsEmpty]: Start isEmpty. Operand 3236 states and 4538 transitions. [2023-11-22 18:49:27,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-22 18:49:27,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:49:27,114 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:49:27,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-22 18:49:27,114 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:49:27,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:49:27,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1423813119, now seen corresponding path program 1 times [2023-11-22 18:49:27,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:49:27,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107367560] [2023-11-22 18:49:27,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:27,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:49:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:27,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:27,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:27,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:49:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:27,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:49:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:27,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:49:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:27,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-22 18:49:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:27,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:49:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:27,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-22 18:49:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:27,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-22 18:49:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:27,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 18:49:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:27,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 18:49:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:27,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-22 18:49:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:27,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 18:49:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:27,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:27,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:27,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 18:49:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:27,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-22 18:49:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:27,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 18:49:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:27,309 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-22 18:49:27,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:49:27,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107367560] [2023-11-22 18:49:27,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107367560] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:49:27,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:49:27,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 18:49:27,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818162518] [2023-11-22 18:49:27,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:49:27,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 18:49:27,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:49:27,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 18:49:27,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-22 18:49:27,312 INFO L87 Difference]: Start difference. First operand 3236 states and 4538 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-22 18:49:28,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:49:28,554 INFO L93 Difference]: Finished difference Result 6799 states and 9629 transitions. [2023-11-22 18:49:28,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 18:49:28,555 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 145 [2023-11-22 18:49:28,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:49:28,573 INFO L225 Difference]: With dead ends: 6799 [2023-11-22 18:49:28,573 INFO L226 Difference]: Without dead ends: 3576 [2023-11-22 18:49:28,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-22 18:49:28,581 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 374 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-22 18:49:28,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 1492 Invalid, 1283 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [327 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-22 18:49:28,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3576 states. [2023-11-22 18:49:28,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3576 to 3240. [2023-11-22 18:49:28,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3240 states, 2197 states have (on average 1.3359126081019572) internal successors, (2935), 2255 states have internal predecessors, (2935), 729 states have call successors, (729), 274 states have call predecessors, (729), 313 states have return successors, (878), 730 states have call predecessors, (878), 728 states have call successors, (878) [2023-11-22 18:49:28,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3240 states to 3240 states and 4542 transitions. [2023-11-22 18:49:28,808 INFO L78 Accepts]: Start accepts. Automaton has 3240 states and 4542 transitions. Word has length 145 [2023-11-22 18:49:28,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:49:28,809 INFO L495 AbstractCegarLoop]: Abstraction has 3240 states and 4542 transitions. [2023-11-22 18:49:28,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-22 18:49:28,809 INFO L276 IsEmpty]: Start isEmpty. Operand 3240 states and 4542 transitions. [2023-11-22 18:49:28,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-22 18:49:28,814 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:49:28,814 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:49:28,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-22 18:49:28,815 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:49:28,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:49:28,816 INFO L85 PathProgramCache]: Analyzing trace with hash 310291331, now seen corresponding path program 1 times [2023-11-22 18:49:28,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:49:28,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9904472] [2023-11-22 18:49:28,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:28,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:49:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:29,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:29,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:29,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:49:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:29,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:49:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:29,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:49:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:29,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-22 18:49:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:29,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:49:29,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:29,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-22 18:49:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:29,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-22 18:49:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:29,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 18:49:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:29,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 18:49:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:29,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-22 18:49:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:29,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 18:49:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:29,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:29,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:29,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 18:49:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:29,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-22 18:49:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:29,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 18:49:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:29,137 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-22 18:49:29,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:49:29,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9904472] [2023-11-22 18:49:29,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9904472] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:49:29,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627236379] [2023-11-22 18:49:29,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:29,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:49:29,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:49:29,139 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 18:49:29,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-22 18:49:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:29,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 1987 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-22 18:49:29,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:49:29,766 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-22 18:49:29,766 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 18:49:29,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627236379] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:49:29,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 18:49:29,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-11-22 18:49:29,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268204520] [2023-11-22 18:49:29,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:49:29,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 18:49:29,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:49:29,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 18:49:29,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-22 18:49:29,768 INFO L87 Difference]: Start difference. First operand 3240 states and 4542 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-22 18:49:30,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:49:30,139 INFO L93 Difference]: Finished difference Result 6503 states and 9115 transitions. [2023-11-22 18:49:30,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 18:49:30,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2023-11-22 18:49:30,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:49:30,151 INFO L225 Difference]: With dead ends: 6503 [2023-11-22 18:49:30,151 INFO L226 Difference]: Without dead ends: 3276 [2023-11-22 18:49:30,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-22 18:49:30,159 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 7 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-22 18:49:30,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1656 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-22 18:49:30,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3276 states. [2023-11-22 18:49:30,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3276 to 3248. [2023-11-22 18:49:30,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3248 states, 2205 states have (on average 1.3346938775510204) internal successors, (2943), 2263 states have internal predecessors, (2943), 729 states have call successors, (729), 274 states have call predecessors, (729), 313 states have return successors, (878), 730 states have call predecessors, (878), 728 states have call successors, (878) [2023-11-22 18:49:30,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3248 states to 3248 states and 4550 transitions. [2023-11-22 18:49:30,423 INFO L78 Accepts]: Start accepts. Automaton has 3248 states and 4550 transitions. Word has length 145 [2023-11-22 18:49:30,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:49:30,423 INFO L495 AbstractCegarLoop]: Abstraction has 3248 states and 4550 transitions. [2023-11-22 18:49:30,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-22 18:49:30,424 INFO L276 IsEmpty]: Start isEmpty. Operand 3248 states and 4550 transitions. [2023-11-22 18:49:30,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-22 18:49:30,430 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:49:30,430 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:49:30,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-22 18:49:30,644 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,SelfDestructingSolverStorable9 [2023-11-22 18:49:30,644 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:49:30,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:49:30,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1334470758, now seen corresponding path program 1 times [2023-11-22 18:49:30,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:49:30,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638970878] [2023-11-22 18:49:30,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:30,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:49:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:30,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:30,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:30,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:49:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:30,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:49:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:30,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:49:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:30,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-22 18:49:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:30,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:49:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:30,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-22 18:49:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:30,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-22 18:49:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:30,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 18:49:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:30,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 18:49:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:30,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 18:49:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:30,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 18:49:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:30,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:30,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:30,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-22 18:49:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:30,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 18:49:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:30,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-22 18:49:30,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:30,965 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-22 18:49:30,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:49:30,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638970878] [2023-11-22 18:49:30,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638970878] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:49:30,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290063095] [2023-11-22 18:49:30,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:30,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:49:30,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:49:30,966 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 18:49:30,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-22 18:49:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:31,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 2007 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-22 18:49:31,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:49:31,546 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-22 18:49:31,547 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 18:49:31,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290063095] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:49:31,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 18:49:31,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2023-11-22 18:49:31,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702521765] [2023-11-22 18:49:31,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:49:31,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 18:49:31,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:49:31,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 18:49:31,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-22 18:49:31,549 INFO L87 Difference]: Start difference. First operand 3248 states and 4550 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-22 18:49:32,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:49:32,823 INFO L93 Difference]: Finished difference Result 12148 states and 17476 transitions. [2023-11-22 18:49:32,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-22 18:49:32,824 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 150 [2023-11-22 18:49:32,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:49:32,869 INFO L225 Difference]: With dead ends: 12148 [2023-11-22 18:49:32,869 INFO L226 Difference]: Without dead ends: 8913 [2023-11-22 18:49:32,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=452, Unknown=0, NotChecked=0, Total=552 [2023-11-22 18:49:32,882 INFO L413 NwaCegarLoop]: 1294 mSDtfsCounter, 1170 mSDsluCounter, 4396 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 5690 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-22 18:49:32,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1213 Valid, 5690 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-22 18:49:32,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8913 states. [2023-11-22 18:49:33,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8913 to 6546. [2023-11-22 18:49:33,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6546 states, 4443 states have (on average 1.3310826018456) internal successors, (5914), 4571 states have internal predecessors, (5914), 1477 states have call successors, (1477), 546 states have call predecessors, (1477), 625 states have return successors, (1776), 1468 states have call predecessors, (1776), 1476 states have call successors, (1776) [2023-11-22 18:49:33,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6546 states to 6546 states and 9167 transitions. [2023-11-22 18:49:33,324 INFO L78 Accepts]: Start accepts. Automaton has 6546 states and 9167 transitions. Word has length 150 [2023-11-22 18:49:33,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:49:33,325 INFO L495 AbstractCegarLoop]: Abstraction has 6546 states and 9167 transitions. [2023-11-22 18:49:33,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-22 18:49:33,325 INFO L276 IsEmpty]: Start isEmpty. Operand 6546 states and 9167 transitions. [2023-11-22 18:49:33,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-22 18:49:33,337 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:49:33,337 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:49:33,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-22 18:49:33,551 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,SelfDestructingSolverStorable10 [2023-11-22 18:49:33,551 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:49:33,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:49:33,551 INFO L85 PathProgramCache]: Analyzing trace with hash -633406180, now seen corresponding path program 1 times [2023-11-22 18:49:33,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:49:33,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713815763] [2023-11-22 18:49:33,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:33,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:49:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:33,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:33,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:33,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:33,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:49:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:33,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:49:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:33,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:49:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:34,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-22 18:49:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:34,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:49:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:34,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-22 18:49:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:34,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-22 18:49:34,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:34,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 18:49:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:34,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 18:49:34,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:34,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 18:49:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:34,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 18:49:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:34,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:34,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:34,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-22 18:49:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:34,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 18:49:34,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:34,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-22 18:49:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:34,086 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-22 18:49:34,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:49:34,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713815763] [2023-11-22 18:49:34,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713815763] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:49:34,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399333750] [2023-11-22 18:49:34,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:34,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:49:34,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:49:34,101 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 18:49:34,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-22 18:49:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:34,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 2002 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-22 18:49:34,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:49:34,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-22 18:49:34,759 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-22 18:49:34,759 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 18:49:34,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399333750] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:49:34,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 18:49:34,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2023-11-22 18:49:34,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825959105] [2023-11-22 18:49:34,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:49:34,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 18:49:34,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:49:34,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 18:49:34,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-11-22 18:49:34,761 INFO L87 Difference]: Start difference. First operand 6546 states and 9167 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-22 18:49:36,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:49:36,045 INFO L93 Difference]: Finished difference Result 13103 states and 18349 transitions. [2023-11-22 18:49:36,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 18:49:36,046 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 150 [2023-11-22 18:49:36,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:49:36,066 INFO L225 Difference]: With dead ends: 13103 [2023-11-22 18:49:36,066 INFO L226 Difference]: Without dead ends: 6570 [2023-11-22 18:49:36,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2023-11-22 18:49:36,082 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 648 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-22 18:49:36,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 1230 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 986 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-22 18:49:36,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6570 states. [2023-11-22 18:49:36,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6570 to 6562. [2023-11-22 18:49:36,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6562 states, 4459 states have (on average 1.3298945952007177) internal successors, (5930), 4587 states have internal predecessors, (5930), 1477 states have call successors, (1477), 546 states have call predecessors, (1477), 625 states have return successors, (1776), 1468 states have call predecessors, (1776), 1476 states have call successors, (1776) [2023-11-22 18:49:36,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6562 states to 6562 states and 9183 transitions. [2023-11-22 18:49:36,600 INFO L78 Accepts]: Start accepts. Automaton has 6562 states and 9183 transitions. Word has length 150 [2023-11-22 18:49:36,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:49:36,600 INFO L495 AbstractCegarLoop]: Abstraction has 6562 states and 9183 transitions. [2023-11-22 18:49:36,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-22 18:49:36,600 INFO L276 IsEmpty]: Start isEmpty. Operand 6562 states and 9183 transitions. [2023-11-22 18:49:36,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-22 18:49:36,611 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:49:36,611 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:49:36,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-22 18:49:36,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:49:36,824 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:49:36,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:49:36,825 INFO L85 PathProgramCache]: Analyzing trace with hash -249841023, now seen corresponding path program 1 times [2023-11-22 18:49:36,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:49:36,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373868731] [2023-11-22 18:49:36,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:36,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:49:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:37,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:37,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:37,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:37,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:49:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:37,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:49:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:37,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:49:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:37,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-22 18:49:37,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:37,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-22 18:49:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:37,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-22 18:49:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:37,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-22 18:49:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:37,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:49:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:37,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-22 18:49:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:37,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-22 18:49:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:37,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-22 18:49:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:37,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:37,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:37,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:37,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-22 18:49:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:37,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 18:49:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:37,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-22 18:49:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:37,393 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-22 18:49:37,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:49:37,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373868731] [2023-11-22 18:49:37,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373868731] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:49:37,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147448428] [2023-11-22 18:49:37,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:37,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:49:37,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:49:37,395 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 18:49:37,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-22 18:49:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:37,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 2019 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-22 18:49:37,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:49:38,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-22 18:49:38,108 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 31 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-22 18:49:38,108 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 18:49:38,317 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-22 18:49:38,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147448428] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 18:49:38,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 18:49:38,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 7] total 20 [2023-11-22 18:49:38,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64495421] [2023-11-22 18:49:38,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 18:49:38,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-22 18:49:38,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:49:38,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-22 18:49:38,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2023-11-22 18:49:38,321 INFO L87 Difference]: Start difference. First operand 6562 states and 9183 transitions. Second operand has 20 states, 20 states have (on average 9.1) internal successors, (182), 14 states have internal predecessors, (182), 4 states have call successors, (49), 10 states have call predecessors, (49), 6 states have return successors, (42), 5 states have call predecessors, (42), 4 states have call successors, (42) [2023-11-22 18:49:41,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:49:41,953 INFO L93 Difference]: Finished difference Result 14045 states and 19989 transitions. [2023-11-22 18:49:41,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-22 18:49:41,954 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 9.1) internal successors, (182), 14 states have internal predecessors, (182), 4 states have call successors, (49), 10 states have call predecessors, (49), 6 states have return successors, (42), 5 states have call predecessors, (42), 4 states have call successors, (42) Word has length 152 [2023-11-22 18:49:41,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:49:41,983 INFO L225 Difference]: With dead ends: 14045 [2023-11-22 18:49:41,983 INFO L226 Difference]: Without dead ends: 7480 [2023-11-22 18:49:42,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=154, Invalid=716, Unknown=0, NotChecked=0, Total=870 [2023-11-22 18:49:42,002 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 1531 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 3874 mSolverCounterSat, 1041 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1589 SdHoareTripleChecker+Valid, 3714 SdHoareTripleChecker+Invalid, 4915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1041 IncrementalHoareTripleChecker+Valid, 3874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-22 18:49:42,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1589 Valid, 3714 Invalid, 4915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1041 Valid, 3874 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-22 18:49:42,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7480 states. [2023-11-22 18:49:42,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7480 to 6578. [2023-11-22 18:49:42,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6578 states, 4475 states have (on average 1.3287150837988826) internal successors, (5946), 4603 states have internal predecessors, (5946), 1477 states have call successors, (1477), 546 states have call predecessors, (1477), 625 states have return successors, (1768), 1468 states have call predecessors, (1768), 1476 states have call successors, (1768) [2023-11-22 18:49:42,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6578 states to 6578 states and 9191 transitions. [2023-11-22 18:49:42,510 INFO L78 Accepts]: Start accepts. Automaton has 6578 states and 9191 transitions. Word has length 152 [2023-11-22 18:49:42,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:49:42,511 INFO L495 AbstractCegarLoop]: Abstraction has 6578 states and 9191 transitions. [2023-11-22 18:49:42,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.1) internal successors, (182), 14 states have internal predecessors, (182), 4 states have call successors, (49), 10 states have call predecessors, (49), 6 states have return successors, (42), 5 states have call predecessors, (42), 4 states have call successors, (42) [2023-11-22 18:49:42,511 INFO L276 IsEmpty]: Start isEmpty. Operand 6578 states and 9191 transitions. [2023-11-22 18:49:42,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-22 18:49:42,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:49:42,521 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:49:42,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-22 18:49:42,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:49:42,737 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:49:42,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:49:42,737 INFO L85 PathProgramCache]: Analyzing trace with hash 4210251, now seen corresponding path program 1 times [2023-11-22 18:49:42,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:49:42,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904375124] [2023-11-22 18:49:42,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:42,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:49:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:43,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:43,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:43,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:49:43,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:43,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:49:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:43,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:49:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:43,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:49:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:43,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:49:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:43,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-22 18:49:43,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:43,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 18:49:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:43,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-22 18:49:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:43,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-22 18:49:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:43,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-22 18:49:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:43,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-22 18:49:43,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:43,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 18:49:43,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:43,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:43,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:43,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-22 18:49:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:43,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-22 18:49:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:43,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-22 18:49:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:43,268 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-22 18:49:43,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:49:43,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904375124] [2023-11-22 18:49:43,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904375124] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:49:43,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891722107] [2023-11-22 18:49:43,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:43,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:49:43,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:49:43,270 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 18:49:43,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-22 18:49:43,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:43,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 2062 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-22 18:49:43,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:49:43,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-22 18:49:43,978 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-22 18:49:43,978 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 18:49:44,262 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-22 18:49:44,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891722107] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 18:49:44,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 18:49:44,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 8] total 22 [2023-11-22 18:49:44,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428230872] [2023-11-22 18:49:44,263 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 18:49:44,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-22 18:49:44,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:49:44,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-22 18:49:44,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2023-11-22 18:49:44,265 INFO L87 Difference]: Start difference. First operand 6578 states and 9191 transitions. Second operand has 22 states, 22 states have (on average 8.909090909090908) internal successors, (196), 16 states have internal predecessors, (196), 4 states have call successors, (51), 10 states have call predecessors, (51), 6 states have return successors, (44), 5 states have call predecessors, (44), 4 states have call successors, (44) [2023-11-22 18:49:47,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:49:47,880 INFO L93 Difference]: Finished difference Result 14081 states and 20017 transitions. [2023-11-22 18:49:47,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-22 18:49:47,881 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.909090909090908) internal successors, (196), 16 states have internal predecessors, (196), 4 states have call successors, (51), 10 states have call predecessors, (51), 6 states have return successors, (44), 5 states have call predecessors, (44), 4 states have call successors, (44) Word has length 160 [2023-11-22 18:49:47,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:49:47,902 INFO L225 Difference]: With dead ends: 14081 [2023-11-22 18:49:47,902 INFO L226 Difference]: Without dead ends: 7516 [2023-11-22 18:49:47,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=830, Unknown=0, NotChecked=0, Total=992 [2023-11-22 18:49:47,919 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 1991 mSDsluCounter, 3771 mSDsCounter, 0 mSdLazyCounter, 4580 mSolverCounterSat, 1195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2049 SdHoareTripleChecker+Valid, 4118 SdHoareTripleChecker+Invalid, 5775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1195 IncrementalHoareTripleChecker+Valid, 4580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-22 18:49:47,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2049 Valid, 4118 Invalid, 5775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1195 Valid, 4580 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-22 18:49:47,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7516 states. [2023-11-22 18:49:48,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7516 to 6602. [2023-11-22 18:49:48,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6602 states, 4499 states have (on average 1.3269615470104468) internal successors, (5970), 4623 states have internal predecessors, (5970), 1477 states have call successors, (1477), 546 states have call predecessors, (1477), 625 states have return successors, (1768), 1472 states have call predecessors, (1768), 1476 states have call successors, (1768) [2023-11-22 18:49:48,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6602 states to 6602 states and 9215 transitions. [2023-11-22 18:49:48,468 INFO L78 Accepts]: Start accepts. Automaton has 6602 states and 9215 transitions. Word has length 160 [2023-11-22 18:49:48,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:49:48,468 INFO L495 AbstractCegarLoop]: Abstraction has 6602 states and 9215 transitions. [2023-11-22 18:49:48,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.909090909090908) internal successors, (196), 16 states have internal predecessors, (196), 4 states have call successors, (51), 10 states have call predecessors, (51), 6 states have return successors, (44), 5 states have call predecessors, (44), 4 states have call successors, (44) [2023-11-22 18:49:48,468 INFO L276 IsEmpty]: Start isEmpty. Operand 6602 states and 9215 transitions. [2023-11-22 18:49:48,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-22 18:49:48,479 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:49:48,480 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:49:48,495 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-22 18:49:48,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-22 18:49:48,693 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:49:48,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:49:48,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1375129707, now seen corresponding path program 2 times [2023-11-22 18:49:48,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:49:48,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010002017] [2023-11-22 18:49:48,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:48,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:49:48,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:49,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:49,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:49,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:49:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:49,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:49:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:49,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:49:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:49,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:49:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:49,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:49:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:49,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:49:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:49,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-22 18:49:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:49,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 18:49:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:49,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-22 18:49:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:49,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-22 18:49:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:49,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-22 18:49:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:49,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-22 18:49:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:49,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:49:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:49,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:49,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:49,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-22 18:49:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:49,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-22 18:49:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:49,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-22 18:49:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:49,175 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-22 18:49:49,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:49:49,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010002017] [2023-11-22 18:49:49,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010002017] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:49:49,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468375130] [2023-11-22 18:49:49,176 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 18:49:49,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:49:49,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:49:49,177 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 18:49:49,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-22 18:49:49,755 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-22 18:49:49,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 18:49:49,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 2105 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-22 18:49:49,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:49:49,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-22 18:49:49,975 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 31 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-22 18:49:49,975 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 18:49:50,301 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-22 18:49:50,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468375130] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 18:49:50,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 18:49:50,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 9] total 24 [2023-11-22 18:49:50,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870208095] [2023-11-22 18:49:50,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 18:49:50,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-22 18:49:50,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:49:50,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-22 18:49:50,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2023-11-22 18:49:50,304 INFO L87 Difference]: Start difference. First operand 6602 states and 9215 transitions. Second operand has 24 states, 24 states have (on average 8.458333333333334) internal successors, (203), 18 states have internal predecessors, (203), 4 states have call successors, (52), 10 states have call predecessors, (52), 6 states have return successors, (46), 5 states have call predecessors, (46), 4 states have call successors, (46) [2023-11-22 18:49:54,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:49:54,061 INFO L93 Difference]: Finished difference Result 14165 states and 20117 transitions. [2023-11-22 18:49:54,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-22 18:49:54,062 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 8.458333333333334) internal successors, (203), 18 states have internal predecessors, (203), 4 states have call successors, (52), 10 states have call predecessors, (52), 6 states have return successors, (46), 5 states have call predecessors, (46), 4 states have call successors, (46) Word has length 168 [2023-11-22 18:49:54,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:49:54,087 INFO L225 Difference]: With dead ends: 14165 [2023-11-22 18:49:54,087 INFO L226 Difference]: Without dead ends: 7576 [2023-11-22 18:49:54,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=170, Invalid=952, Unknown=0, NotChecked=0, Total=1122 [2023-11-22 18:49:54,106 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 2453 mSDsluCounter, 3550 mSDsCounter, 0 mSdLazyCounter, 4401 mSolverCounterSat, 1602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2511 SdHoareTripleChecker+Valid, 3897 SdHoareTripleChecker+Invalid, 6003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1602 IncrementalHoareTripleChecker+Valid, 4401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-22 18:49:54,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2511 Valid, 3897 Invalid, 6003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1602 Valid, 4401 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-22 18:49:54,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7576 states. [2023-11-22 18:49:54,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7576 to 6634. [2023-11-22 18:49:54,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6634 states, 4531 states have (on average 1.3246523946148754) internal successors, (6002), 4647 states have internal predecessors, (6002), 1477 states have call successors, (1477), 546 states have call predecessors, (1477), 625 states have return successors, (1768), 1480 states have call predecessors, (1768), 1476 states have call successors, (1768) [2023-11-22 18:49:54,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6634 states to 6634 states and 9247 transitions. [2023-11-22 18:49:54,637 INFO L78 Accepts]: Start accepts. Automaton has 6634 states and 9247 transitions. Word has length 168 [2023-11-22 18:49:54,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:49:54,637 INFO L495 AbstractCegarLoop]: Abstraction has 6634 states and 9247 transitions. [2023-11-22 18:49:54,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 8.458333333333334) internal successors, (203), 18 states have internal predecessors, (203), 4 states have call successors, (52), 10 states have call predecessors, (52), 6 states have return successors, (46), 5 states have call predecessors, (46), 4 states have call successors, (46) [2023-11-22 18:49:54,637 INFO L276 IsEmpty]: Start isEmpty. Operand 6634 states and 9247 transitions. [2023-11-22 18:49:54,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-22 18:49:54,649 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:49:54,649 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:49:54,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-22 18:49:54,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-22 18:49:54,866 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:49:54,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:49:54,867 INFO L85 PathProgramCache]: Analyzing trace with hash -30889697, now seen corresponding path program 3 times [2023-11-22 18:49:54,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:49:54,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422912407] [2023-11-22 18:49:54,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:54,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:49:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:49:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:49:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:49:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:49:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:49:55,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:49:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-22 18:49:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:49:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:49:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 18:49:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-22 18:49:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 18:49:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-22 18:49:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 18:49:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-22 18:49:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 18:49:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-22 18:49:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:55,168 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-11-22 18:49:55,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:49:55,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422912407] [2023-11-22 18:49:55,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422912407] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:49:55,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:49:55,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-22 18:49:55,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82105353] [2023-11-22 18:49:55,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:49:55,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 18:49:55,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:49:55,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 18:49:55,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-22 18:49:55,171 INFO L87 Difference]: Start difference. First operand 6634 states and 9247 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-22 18:49:57,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:49:57,041 INFO L93 Difference]: Finished difference Result 14133 states and 20037 transitions. [2023-11-22 18:49:57,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 18:49:57,042 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 176 [2023-11-22 18:49:57,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:49:57,061 INFO L225 Difference]: With dead ends: 14133 [2023-11-22 18:49:57,062 INFO L226 Difference]: Without dead ends: 7512 [2023-11-22 18:49:57,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-22 18:49:57,072 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 773 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 662 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 1705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 662 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-22 18:49:57,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 1390 Invalid, 1705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [662 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-22 18:49:57,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7512 states. [2023-11-22 18:49:57,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7512 to 6618. [2023-11-22 18:49:57,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6618 states, 4523 states have (on average 1.3234578819367677) internal successors, (5986), 4639 states have internal predecessors, (5986), 1469 states have call successors, (1469), 546 states have call predecessors, (1469), 625 states have return successors, (1760), 1472 states have call predecessors, (1760), 1468 states have call successors, (1760) [2023-11-22 18:49:57,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6618 states to 6618 states and 9215 transitions. [2023-11-22 18:49:57,491 INFO L78 Accepts]: Start accepts. Automaton has 6618 states and 9215 transitions. Word has length 176 [2023-11-22 18:49:57,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:49:57,492 INFO L495 AbstractCegarLoop]: Abstraction has 6618 states and 9215 transitions. [2023-11-22 18:49:57,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-22 18:49:57,492 INFO L276 IsEmpty]: Start isEmpty. Operand 6618 states and 9215 transitions. [2023-11-22 18:49:57,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-22 18:49:57,502 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:49:57,502 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:49:57,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-22 18:49:57,502 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:49:57,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:49:57,502 INFO L85 PathProgramCache]: Analyzing trace with hash 12787363, now seen corresponding path program 1 times [2023-11-22 18:49:57,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:49:57,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714818419] [2023-11-22 18:49:57,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:49:57,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:49:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:57,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:57,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:57,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:49:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:57,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:49:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:57,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:49:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:57,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:49:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:57,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:49:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:57,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:49:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:57,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-22 18:49:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:57,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:49:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:57,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:49:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:58,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 18:49:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:58,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-22 18:49:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:58,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 18:49:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:58,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-22 18:49:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:58,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 18:49:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:58,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:49:58,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:58,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:49:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:58,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-22 18:49:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:58,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 18:49:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:58,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-22 18:49:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:49:58,116 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-22 18:49:58,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:49:58,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714818419] [2023-11-22 18:49:58,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714818419] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:49:58,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:49:58,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-22 18:49:58,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965298623] [2023-11-22 18:49:58,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:49:58,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-22 18:49:58,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:49:58,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-22 18:49:58,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-22 18:49:58,176 INFO L87 Difference]: Start difference. First operand 6618 states and 9215 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-22 18:50:00,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:50:00,511 INFO L93 Difference]: Finished difference Result 14125 states and 20017 transitions. [2023-11-22 18:50:00,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-22 18:50:00,512 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) Word has length 176 [2023-11-22 18:50:00,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:50:00,536 INFO L225 Difference]: With dead ends: 14125 [2023-11-22 18:50:00,536 INFO L226 Difference]: Without dead ends: 7520 [2023-11-22 18:50:00,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2023-11-22 18:50:00,550 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 574 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 1632 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 1632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-22 18:50:00,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 2092 Invalid, 2129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 1632 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-22 18:50:00,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7520 states. [2023-11-22 18:50:01,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7520 to 6638. [2023-11-22 18:50:01,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6638 states, 4539 states have (on average 1.3223176911213923) internal successors, (6002), 4651 states have internal predecessors, (6002), 1473 states have call successors, (1473), 546 states have call predecessors, (1473), 625 states have return successors, (1764), 1480 states have call predecessors, (1764), 1472 states have call successors, (1764) [2023-11-22 18:50:01,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6638 states to 6638 states and 9239 transitions. [2023-11-22 18:50:01,069 INFO L78 Accepts]: Start accepts. Automaton has 6638 states and 9239 transitions. Word has length 176 [2023-11-22 18:50:01,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:50:01,069 INFO L495 AbstractCegarLoop]: Abstraction has 6638 states and 9239 transitions. [2023-11-22 18:50:01,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-22 18:50:01,069 INFO L276 IsEmpty]: Start isEmpty. Operand 6638 states and 9239 transitions. [2023-11-22 18:50:01,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-11-22 18:50:01,078 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:50:01,079 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:50:01,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-22 18:50:01,079 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:50:01,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:50:01,079 INFO L85 PathProgramCache]: Analyzing trace with hash -2065715576, now seen corresponding path program 2 times [2023-11-22 18:50:01,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:50:01,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729809475] [2023-11-22 18:50:01,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:50:01,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:50:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:50:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:50:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:50:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:50:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:01,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:50:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-22 18:50:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:50:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 18:50:01,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-22 18:50:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 18:50:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-22 18:50:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 18:50:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:01,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:50:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 18:50:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 18:50:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-11-22 18:50:01,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:01,905 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-11-22 18:50:01,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:50:01,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729809475] [2023-11-22 18:50:01,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729809475] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:50:01,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382894188] [2023-11-22 18:50:01,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 18:50:01,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:50:01,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:50:01,921 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 18:50:01,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-22 18:50:02,517 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-22 18:50:02,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 18:50:02,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 2174 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-22 18:50:02,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:50:02,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-22 18:50:02,681 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 55 proven. 20 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-22 18:50:02,681 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 18:50:02,924 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 7 proven. 20 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-11-22 18:50:02,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382894188] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 18:50:02,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 18:50:02,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 26 [2023-11-22 18:50:02,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759060306] [2023-11-22 18:50:02,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 18:50:02,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-22 18:50:02,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:50:02,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-22 18:50:02,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=569, Unknown=0, NotChecked=0, Total=650 [2023-11-22 18:50:02,926 INFO L87 Difference]: Start difference. First operand 6638 states and 9239 transitions. Second operand has 26 states, 26 states have (on average 8.384615384615385) internal successors, (218), 20 states have internal predecessors, (218), 4 states have call successors, (53), 10 states have call predecessors, (53), 6 states have return successors, (48), 5 states have call predecessors, (48), 4 states have call successors, (48) [2023-11-22 18:50:07,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:50:07,290 INFO L93 Difference]: Finished difference Result 14177 states and 20061 transitions. [2023-11-22 18:50:07,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-22 18:50:07,291 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.384615384615385) internal successors, (218), 20 states have internal predecessors, (218), 4 states have call successors, (53), 10 states have call predecessors, (53), 6 states have return successors, (48), 5 states have call predecessors, (48), 4 states have call successors, (48) Word has length 182 [2023-11-22 18:50:07,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:50:07,318 INFO L225 Difference]: With dead ends: 14177 [2023-11-22 18:50:07,318 INFO L226 Difference]: Without dead ends: 7552 [2023-11-22 18:50:07,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=178, Invalid=1082, Unknown=0, NotChecked=0, Total=1260 [2023-11-22 18:50:07,336 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 1954 mSDsluCounter, 4584 mSDsCounter, 0 mSdLazyCounter, 5677 mSolverCounterSat, 1288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2008 SdHoareTripleChecker+Valid, 4928 SdHoareTripleChecker+Invalid, 6965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1288 IncrementalHoareTripleChecker+Valid, 5677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-22 18:50:07,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2008 Valid, 4928 Invalid, 6965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1288 Valid, 5677 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-22 18:50:07,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7552 states. [2023-11-22 18:50:07,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7552 to 6670. [2023-11-22 18:50:07,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6670 states, 4571 states have (on average 1.3200612557427258) internal successors, (6034), 4675 states have internal predecessors, (6034), 1473 states have call successors, (1473), 546 states have call predecessors, (1473), 625 states have return successors, (1764), 1488 states have call predecessors, (1764), 1472 states have call successors, (1764) [2023-11-22 18:50:07,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6670 states to 6670 states and 9271 transitions. [2023-11-22 18:50:07,830 INFO L78 Accepts]: Start accepts. Automaton has 6670 states and 9271 transitions. Word has length 182 [2023-11-22 18:50:07,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:50:07,831 INFO L495 AbstractCegarLoop]: Abstraction has 6670 states and 9271 transitions. [2023-11-22 18:50:07,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.384615384615385) internal successors, (218), 20 states have internal predecessors, (218), 4 states have call successors, (53), 10 states have call predecessors, (53), 6 states have return successors, (48), 5 states have call predecessors, (48), 4 states have call successors, (48) [2023-11-22 18:50:07,831 INFO L276 IsEmpty]: Start isEmpty. Operand 6670 states and 9271 transitions. [2023-11-22 18:50:07,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-11-22 18:50:07,841 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:50:07,841 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:50:07,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-22 18:50:08,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:50:08,056 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:50:08,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:50:08,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1905211288, now seen corresponding path program 1 times [2023-11-22 18:50:08,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:50:08,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288519965] [2023-11-22 18:50:08,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:50:08,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:50:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:50:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:50:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:50:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:50:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:50:08,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 18:50:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 18:50:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 18:50:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 18:50:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:50:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-22 18:50:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 18:50:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:08,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:50:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-22 18:50:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-22 18:50:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-22 18:50:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:08,523 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-22 18:50:08,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:50:08,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288519965] [2023-11-22 18:50:08,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288519965] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:50:08,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:50:08,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-22 18:50:08,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853537194] [2023-11-22 18:50:08,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:50:08,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-22 18:50:08,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:50:08,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-22 18:50:08,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-22 18:50:08,527 INFO L87 Difference]: Start difference. First operand 6670 states and 9271 transitions. Second operand has 10 states, 10 states have (on average 9.6) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (20), 7 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-22 18:50:10,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:50:10,603 INFO L93 Difference]: Finished difference Result 14233 states and 20157 transitions. [2023-11-22 18:50:10,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-22 18:50:10,604 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (20), 7 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 190 [2023-11-22 18:50:10,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:50:10,634 INFO L225 Difference]: With dead ends: 14233 [2023-11-22 18:50:10,634 INFO L226 Difference]: Without dead ends: 7576 [2023-11-22 18:50:10,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2023-11-22 18:50:10,650 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 779 mSDsluCounter, 1448 mSDsCounter, 0 mSdLazyCounter, 1487 mSolverCounterSat, 665 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 2152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 665 IncrementalHoareTripleChecker+Valid, 1487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-22 18:50:10,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 1856 Invalid, 2152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [665 Valid, 1487 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-22 18:50:10,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7576 states. [2023-11-22 18:50:11,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7576 to 6694. [2023-11-22 18:50:11,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6694 states, 4587 states have (on average 1.3224329627207325) internal successors, (6066), 4699 states have internal predecessors, (6066), 1473 states have call successors, (1473), 546 states have call predecessors, (1473), 633 states have return successors, (1784), 1488 states have call predecessors, (1784), 1472 states have call successors, (1784) [2023-11-22 18:50:11,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6694 states to 6694 states and 9323 transitions. [2023-11-22 18:50:11,230 INFO L78 Accepts]: Start accepts. Automaton has 6694 states and 9323 transitions. Word has length 190 [2023-11-22 18:50:11,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:50:11,231 INFO L495 AbstractCegarLoop]: Abstraction has 6694 states and 9323 transitions. [2023-11-22 18:50:11,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (20), 7 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-22 18:50:11,231 INFO L276 IsEmpty]: Start isEmpty. Operand 6694 states and 9323 transitions. [2023-11-22 18:50:11,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-22 18:50:11,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:50:11,240 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:50:11,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-22 18:50:11,241 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:50:11,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:50:11,241 INFO L85 PathProgramCache]: Analyzing trace with hash 2030089357, now seen corresponding path program 1 times [2023-11-22 18:50:11,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:50:11,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101219781] [2023-11-22 18:50:11,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:50:11,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:50:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:50:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:50:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:50:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:50:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:50:11,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 18:50:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 18:50:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 18:50:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 18:50:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:50:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-22 18:50:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-22 18:50:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:11,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:50:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-22 18:50:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-22 18:50:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-11-22 18:50:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:11,867 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-22 18:50:11,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:50:11,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101219781] [2023-11-22 18:50:11,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101219781] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:50:11,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523378263] [2023-11-22 18:50:11,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:50:11,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:50:11,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:50:11,869 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 18:50:11,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-22 18:50:12,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:12,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 2338 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-22 18:50:12,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:50:12,609 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-22 18:50:12,609 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 18:50:12,672 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-22 18:50:12,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523378263] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-22 18:50:12,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-22 18:50:12,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11, 5] total 12 [2023-11-22 18:50:12,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457283615] [2023-11-22 18:50:12,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:50:12,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 18:50:12,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:50:12,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 18:50:12,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-22 18:50:12,675 INFO L87 Difference]: Start difference. First operand 6694 states and 9323 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-22 18:50:13,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:50:13,530 INFO L93 Difference]: Finished difference Result 13431 states and 19085 transitions. [2023-11-22 18:50:13,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 18:50:13,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 191 [2023-11-22 18:50:13,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:50:13,552 INFO L225 Difference]: With dead ends: 13431 [2023-11-22 18:50:13,552 INFO L226 Difference]: Without dead ends: 6750 [2023-11-22 18:50:13,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 419 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-22 18:50:13,567 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 1 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-22 18:50:13,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1106 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-22 18:50:13,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6750 states. [2023-11-22 18:50:14,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6750 to 6718. [2023-11-22 18:50:14,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6718 states, 4611 states have (on average 1.322489698546953) internal successors, (6098), 4723 states have internal predecessors, (6098), 1473 states have call successors, (1473), 546 states have call predecessors, (1473), 633 states have return successors, (1784), 1488 states have call predecessors, (1784), 1472 states have call successors, (1784) [2023-11-22 18:50:14,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6718 states to 6718 states and 9355 transitions. [2023-11-22 18:50:14,138 INFO L78 Accepts]: Start accepts. Automaton has 6718 states and 9355 transitions. Word has length 191 [2023-11-22 18:50:14,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:50:14,138 INFO L495 AbstractCegarLoop]: Abstraction has 6718 states and 9355 transitions. [2023-11-22 18:50:14,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-22 18:50:14,138 INFO L276 IsEmpty]: Start isEmpty. Operand 6718 states and 9355 transitions. [2023-11-22 18:50:14,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-22 18:50:14,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:50:14,146 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:50:14,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-22 18:50:14,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:50:14,362 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:50:14,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:50:14,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1835580294, now seen corresponding path program 1 times [2023-11-22 18:50:14,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:50:14,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378996888] [2023-11-22 18:50:14,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:50:14,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:50:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:50:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:50:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:50:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:50:14,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:50:14,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 18:50:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 18:50:14,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 18:50:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 18:50:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:50:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-22 18:50:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-22 18:50:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:50:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-11-22 18:50:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-22 18:50:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-22 18:50:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:14,947 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-22 18:50:14,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:50:14,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378996888] [2023-11-22 18:50:14,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378996888] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:50:14,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777421070] [2023-11-22 18:50:14,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:50:14,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:50:14,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:50:14,949 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 18:50:14,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-22 18:50:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:15,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 2357 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-22 18:50:15,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:50:15,881 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2023-11-22 18:50:15,881 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 18:50:15,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777421070] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:50:15,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 18:50:15,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [11] total 22 [2023-11-22 18:50:15,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402606721] [2023-11-22 18:50:15,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:50:15,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-22 18:50:15,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:50:15,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-22 18:50:15,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=415, Unknown=0, NotChecked=0, Total=462 [2023-11-22 18:50:15,883 INFO L87 Difference]: Start difference. First operand 6718 states and 9355 transitions. Second operand has 13 states, 11 states have (on average 9.454545454545455) internal successors, (104), 10 states have internal predecessors, (104), 4 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-22 18:50:17,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:50:17,792 INFO L93 Difference]: Finished difference Result 13539 states and 18877 transitions. [2023-11-22 18:50:17,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-22 18:50:17,793 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 9.454545454545455) internal successors, (104), 10 states have internal predecessors, (104), 4 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) Word has length 192 [2023-11-22 18:50:17,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:50:17,822 INFO L225 Difference]: With dead ends: 13539 [2023-11-22 18:50:17,823 INFO L226 Difference]: Without dead ends: 6834 [2023-11-22 18:50:17,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=113, Invalid=1077, Unknown=0, NotChecked=0, Total=1190 [2023-11-22 18:50:17,839 INFO L413 NwaCegarLoop]: 1070 mSDtfsCounter, 664 mSDsluCounter, 10148 mSDsCounter, 0 mSdLazyCounter, 1912 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 11218 SdHoareTripleChecker+Invalid, 1931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-22 18:50:17,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 11218 Invalid, 1931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1912 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-22 18:50:17,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6834 states. [2023-11-22 18:50:18,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6834 to 6714. [2023-11-22 18:50:18,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6714 states, 4607 states have (on average 1.320164966355546) internal successors, (6082), 4719 states have internal predecessors, (6082), 1473 states have call successors, (1473), 546 states have call predecessors, (1473), 633 states have return successors, (1784), 1488 states have call predecessors, (1784), 1472 states have call successors, (1784) [2023-11-22 18:50:18,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6714 states to 6714 states and 9339 transitions. [2023-11-22 18:50:18,492 INFO L78 Accepts]: Start accepts. Automaton has 6714 states and 9339 transitions. Word has length 192 [2023-11-22 18:50:18,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:50:18,492 INFO L495 AbstractCegarLoop]: Abstraction has 6714 states and 9339 transitions. [2023-11-22 18:50:18,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 9.454545454545455) internal successors, (104), 10 states have internal predecessors, (104), 4 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-22 18:50:18,493 INFO L276 IsEmpty]: Start isEmpty. Operand 6714 states and 9339 transitions. [2023-11-22 18:50:18,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-11-22 18:50:18,501 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:50:18,501 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:50:18,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-22 18:50:18,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:50:18,717 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:50:18,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:50:18,718 INFO L85 PathProgramCache]: Analyzing trace with hash 2002938691, now seen corresponding path program 1 times [2023-11-22 18:50:18,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:50:18,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324208323] [2023-11-22 18:50:18,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:50:18,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:50:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:50:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:50:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:50:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:50:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:50:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 18:50:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 18:50:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 18:50:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 18:50:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:50:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-22 18:50:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-22 18:50:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:50:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 18:50:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:50:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-11-22 18:50:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-11-22 18:50:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-11-22 18:50:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-11-22 18:50:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:19,527 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2023-11-22 18:50:19,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:50:19,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324208323] [2023-11-22 18:50:19,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324208323] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:50:19,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012018257] [2023-11-22 18:50:19,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:50:19,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:50:19,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:50:19,528 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 18:50:19,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-22 18:50:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:20,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 2467 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-22 18:50:20,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:50:20,431 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-11-22 18:50:20,431 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 18:50:20,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012018257] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:50:20,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 18:50:20,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [12] total 23 [2023-11-22 18:50:20,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427091564] [2023-11-22 18:50:20,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:50:20,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-22 18:50:20,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:50:20,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-22 18:50:20,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2023-11-22 18:50:20,433 INFO L87 Difference]: Start difference. First operand 6714 states and 9339 transitions. Second operand has 13 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 4 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (24), 6 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-22 18:50:22,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:50:22,334 INFO L93 Difference]: Finished difference Result 13459 states and 18717 transitions. [2023-11-22 18:50:22,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-22 18:50:22,335 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 4 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (24), 6 states have call predecessors, (24), 4 states have call successors, (24) Word has length 216 [2023-11-22 18:50:22,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:50:22,353 INFO L225 Difference]: With dead ends: 13459 [2023-11-22 18:50:22,353 INFO L226 Difference]: Without dead ends: 6758 [2023-11-22 18:50:22,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=1144, Unknown=0, NotChecked=0, Total=1260 [2023-11-22 18:50:22,368 INFO L413 NwaCegarLoop]: 1072 mSDtfsCounter, 634 mSDsluCounter, 10147 mSDsCounter, 0 mSdLazyCounter, 1909 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 11219 SdHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-22 18:50:22,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 11219 Invalid, 1924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1909 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-22 18:50:22,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6758 states. [2023-11-22 18:50:22,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6758 to 6714. [2023-11-22 18:50:22,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6714 states, 4607 states have (on average 1.3192967223789884) internal successors, (6078), 4719 states have internal predecessors, (6078), 1473 states have call successors, (1473), 546 states have call predecessors, (1473), 633 states have return successors, (1784), 1488 states have call predecessors, (1784), 1472 states have call successors, (1784) [2023-11-22 18:50:22,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6714 states to 6714 states and 9335 transitions. [2023-11-22 18:50:22,921 INFO L78 Accepts]: Start accepts. Automaton has 6714 states and 9335 transitions. Word has length 216 [2023-11-22 18:50:22,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:50:22,921 INFO L495 AbstractCegarLoop]: Abstraction has 6714 states and 9335 transitions. [2023-11-22 18:50:22,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 4 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (24), 6 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-22 18:50:22,922 INFO L276 IsEmpty]: Start isEmpty. Operand 6714 states and 9335 transitions. [2023-11-22 18:50:22,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-11-22 18:50:22,930 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:50:22,930 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:50:22,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-22 18:50:23,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-22 18:50:23,145 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:50:23,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:50:23,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1980722263, now seen corresponding path program 1 times [2023-11-22 18:50:23,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:50:23,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72942321] [2023-11-22 18:50:23,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:50:23,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:50:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:50:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:50:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:50:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:50:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:50:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:23,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 18:50:23,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 18:50:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 18:50:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 18:50:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:50:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-22 18:50:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-22 18:50:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:50:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 18:50:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:50:23,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-22 18:50:23,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 18:50:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-22 18:50:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-22 18:50:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-22 18:50:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:23,504 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-22 18:50:23,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:50:23,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72942321] [2023-11-22 18:50:23,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72942321] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:50:23,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:50:23,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-22 18:50:23,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293154240] [2023-11-22 18:50:23,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:50:23,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-22 18:50:23,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:50:23,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-22 18:50:23,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-22 18:50:23,506 INFO L87 Difference]: Start difference. First operand 6714 states and 9335 transitions. Second operand has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-22 18:50:26,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:50:26,278 INFO L93 Difference]: Finished difference Result 16664 states and 23998 transitions. [2023-11-22 18:50:26,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 18:50:26,280 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 4 states have internal predecessors, (107), 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 230 [2023-11-22 18:50:26,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:50:26,310 INFO L225 Difference]: With dead ends: 16664 [2023-11-22 18:50:26,310 INFO L226 Difference]: Without dead ends: 9963 [2023-11-22 18:50:26,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-22 18:50:26,326 INFO L413 NwaCegarLoop]: 671 mSDtfsCounter, 795 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 2105 mSolverCounterSat, 501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 3449 SdHoareTripleChecker+Invalid, 2606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 2105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-22 18:50:26,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 3449 Invalid, 2606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [501 Valid, 2105 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-22 18:50:26,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9963 states. [2023-11-22 18:50:26,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9963 to 6698. [2023-11-22 18:50:26,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6698 states, 4599 states have (on average 1.3181126331811264) internal successors, (6062), 4711 states have internal predecessors, (6062), 1465 states have call successors, (1465), 546 states have call predecessors, (1465), 633 states have return successors, (1776), 1480 states have call predecessors, (1776), 1464 states have call successors, (1776) [2023-11-22 18:50:26,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6698 states to 6698 states and 9303 transitions. [2023-11-22 18:50:26,883 INFO L78 Accepts]: Start accepts. Automaton has 6698 states and 9303 transitions. Word has length 230 [2023-11-22 18:50:26,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:50:26,885 INFO L495 AbstractCegarLoop]: Abstraction has 6698 states and 9303 transitions. [2023-11-22 18:50:26,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-22 18:50:26,885 INFO L276 IsEmpty]: Start isEmpty. Operand 6698 states and 9303 transitions. [2023-11-22 18:50:26,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-11-22 18:50:26,893 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:50:26,894 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:50:26,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-22 18:50:26,894 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:50:26,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:50:26,894 INFO L85 PathProgramCache]: Analyzing trace with hash -383877315, now seen corresponding path program 1 times [2023-11-22 18:50:26,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:50:26,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026623760] [2023-11-22 18:50:26,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:50:26,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:50:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:50:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:50:27,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:50:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:50:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:50:27,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 18:50:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 18:50:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 18:50:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 18:50:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:50:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-22 18:50:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-22 18:50:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:50:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 18:50:27,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:50:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-22 18:50:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 18:50:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-22 18:50:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-22 18:50:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 18:50:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:27,400 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2023-11-22 18:50:27,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:50:27,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026623760] [2023-11-22 18:50:27,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026623760] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:50:27,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594346528] [2023-11-22 18:50:27,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:50:27,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:50:27,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:50:27,403 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 18:50:27,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-22 18:50:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:28,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 2685 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 18:50:28,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:50:28,464 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2023-11-22 18:50:28,464 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 18:50:28,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594346528] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:50:28,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 18:50:28,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 10 [2023-11-22 18:50:28,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386923765] [2023-11-22 18:50:28,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:50:28,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 18:50:28,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:50:28,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 18:50:28,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-22 18:50:28,466 INFO L87 Difference]: Start difference. First operand 6698 states and 9303 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 3 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-22 18:50:30,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:50:30,478 INFO L93 Difference]: Finished difference Result 20073 states and 27879 transitions. [2023-11-22 18:50:30,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 18:50:30,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 3 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 231 [2023-11-22 18:50:30,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:50:30,536 INFO L225 Difference]: With dead ends: 20073 [2023-11-22 18:50:30,536 INFO L226 Difference]: Without dead ends: 20068 [2023-11-22 18:50:30,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-22 18:50:30,546 INFO L413 NwaCegarLoop]: 1097 mSDtfsCounter, 1115 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-22 18:50:30,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 1982 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-22 18:50:30,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20068 states. [2023-11-22 18:50:32,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20068 to 16728. [2023-11-22 18:50:32,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16728 states, 11491 states have (on average 1.31798799060134) internal successors, (15145), 11771 states have internal predecessors, (15145), 3655 states have call successors, (3655), 1362 states have call predecessors, (3655), 1581 states have return successors, (4434), 3694 states have call predecessors, (4434), 3654 states have call successors, (4434) [2023-11-22 18:50:32,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16728 states to 16728 states and 23234 transitions. [2023-11-22 18:50:32,064 INFO L78 Accepts]: Start accepts. Automaton has 16728 states and 23234 transitions. Word has length 231 [2023-11-22 18:50:32,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:50:32,064 INFO L495 AbstractCegarLoop]: Abstraction has 16728 states and 23234 transitions. [2023-11-22 18:50:32,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 3 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-22 18:50:32,065 INFO L276 IsEmpty]: Start isEmpty. Operand 16728 states and 23234 transitions. [2023-11-22 18:50:32,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-11-22 18:50:32,087 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:50:32,087 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:50:32,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-22 18:50:32,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-22 18:50:32,304 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:50:32,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:50:32,304 INFO L85 PathProgramCache]: Analyzing trace with hash 317187263, now seen corresponding path program 1 times [2023-11-22 18:50:32,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:50:32,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328243553] [2023-11-22 18:50:32,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:50:32,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:50:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:50:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:50:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:50:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:50:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:50:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:32,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 18:50:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 18:50:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 18:50:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 18:50:32,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:50:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-22 18:50:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-22 18:50:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:50:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 18:50:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:50:32,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-22 18:50:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 18:50:32,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:32,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-22 18:50:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-22 18:50:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 18:50:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:32,635 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2023-11-22 18:50:32,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:50:32,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328243553] [2023-11-22 18:50:32,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328243553] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:50:32,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:50:32,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-22 18:50:32,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127950545] [2023-11-22 18:50:32,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:50:32,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-22 18:50:32,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:50:32,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-22 18:50:32,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-22 18:50:32,637 INFO L87 Difference]: Start difference. First operand 16728 states and 23234 transitions. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-22 18:50:38,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:50:38,855 INFO L93 Difference]: Finished difference Result 52539 states and 77074 transitions. [2023-11-22 18:50:38,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-22 18:50:38,856 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 231 [2023-11-22 18:50:38,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:50:38,971 INFO L225 Difference]: With dead ends: 52539 [2023-11-22 18:50:38,971 INFO L226 Difference]: Without dead ends: 35824 [2023-11-22 18:50:39,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2023-11-22 18:50:39,011 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 2798 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 2007 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2887 SdHoareTripleChecker+Valid, 2254 SdHoareTripleChecker+Invalid, 3535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2007 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-22 18:50:39,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2887 Valid, 2254 Invalid, 3535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2007 Valid, 1528 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-22 18:50:39,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35824 states. [2023-11-22 18:50:40,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35824 to 17500. [2023-11-22 18:50:40,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17500 states, 11983 states have (on average 1.3116081114912792) internal successors, (15717), 12267 states have internal predecessors, (15717), 3735 states have call successors, (3735), 1362 states have call predecessors, (3735), 1781 states have return successors, (5034), 3970 states have call predecessors, (5034), 3734 states have call successors, (5034) [2023-11-22 18:50:41,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17500 states to 17500 states and 24486 transitions. [2023-11-22 18:50:41,035 INFO L78 Accepts]: Start accepts. Automaton has 17500 states and 24486 transitions. Word has length 231 [2023-11-22 18:50:41,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:50:41,035 INFO L495 AbstractCegarLoop]: Abstraction has 17500 states and 24486 transitions. [2023-11-22 18:50:41,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-22 18:50:41,035 INFO L276 IsEmpty]: Start isEmpty. Operand 17500 states and 24486 transitions. [2023-11-22 18:50:41,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-11-22 18:50:41,092 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:50:41,092 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:50:41,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-22 18:50:41,093 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:50:41,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:50:41,093 INFO L85 PathProgramCache]: Analyzing trace with hash -275281083, now seen corresponding path program 1 times [2023-11-22 18:50:41,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:50:41,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825007584] [2023-11-22 18:50:41,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:50:41,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:50:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:50:41,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:50:41,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:50:41,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:50:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:50:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 18:50:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 18:50:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 18:50:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 18:50:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:50:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-22 18:50:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-22 18:50:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:41,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:50:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 18:50:41,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:41,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:50:41,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-22 18:50:41,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:41,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-22 18:50:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-11-22 18:50:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-22 18:50:41,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-11-22 18:50:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-11-22 18:50:41,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2023-11-22 18:50:41,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:50:41,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825007584] [2023-11-22 18:50:41,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825007584] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:50:41,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653923461] [2023-11-22 18:50:41,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:50:41,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:50:41,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:50:41,929 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 18:50:41,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-22 18:50:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:42,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 2564 conjuncts, 76 conjunts are in the unsatisfiable core [2023-11-22 18:50:42,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:50:43,081 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 53 proven. 5 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2023-11-22 18:50:43,081 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 18:50:43,597 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2023-11-22 18:50:43,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653923461] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 18:50:43,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 18:50:43,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 11] total 33 [2023-11-22 18:50:43,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802944359] [2023-11-22 18:50:43,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 18:50:43,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-11-22 18:50:43,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:50:43,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-11-22 18:50:43,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=934, Unknown=0, NotChecked=0, Total=1056 [2023-11-22 18:50:43,602 INFO L87 Difference]: Start difference. First operand 17500 states and 24486 transitions. Second operand has 33 states, 28 states have (on average 9.071428571428571) internal successors, (254), 23 states have internal predecessors, (254), 13 states have call successors, (58), 12 states have call predecessors, (58), 11 states have return successors, (57), 15 states have call predecessors, (57), 13 states have call successors, (57) [2023-11-22 18:50:54,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:50:54,760 INFO L93 Difference]: Finished difference Result 46663 states and 66735 transitions. [2023-11-22 18:50:54,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-11-22 18:50:54,760 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 28 states have (on average 9.071428571428571) internal successors, (254), 23 states have internal predecessors, (254), 13 states have call successors, (58), 12 states have call predecessors, (58), 11 states have return successors, (57), 15 states have call predecessors, (57), 13 states have call successors, (57) Word has length 234 [2023-11-22 18:50:54,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:50:54,850 INFO L225 Difference]: With dead ends: 46663 [2023-11-22 18:50:54,850 INFO L226 Difference]: Without dead ends: 29154 [2023-11-22 18:50:54,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1807 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1315, Invalid=6341, Unknown=0, NotChecked=0, Total=7656 [2023-11-22 18:50:54,885 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 7416 mSDsluCounter, 6632 mSDsCounter, 0 mSdLazyCounter, 7879 mSolverCounterSat, 4653 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7542 SdHoareTripleChecker+Valid, 6978 SdHoareTripleChecker+Invalid, 12532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4653 IncrementalHoareTripleChecker+Valid, 7879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-22 18:50:54,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7542 Valid, 6978 Invalid, 12532 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4653 Valid, 7879 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-11-22 18:50:54,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29154 states. [2023-11-22 18:50:57,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29154 to 23812. [2023-11-22 18:50:57,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23812 states, 16460 states have (on average 1.3210814094775212) internal successors, (21745), 16794 states have internal predecessors, (21745), 5110 states have call successors, (5110), 2012 states have call predecessors, (5110), 2241 states have return successors, (5669), 5145 states have call predecessors, (5669), 5109 states have call successors, (5669) [2023-11-22 18:50:57,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23812 states to 23812 states and 32524 transitions. [2023-11-22 18:50:57,507 INFO L78 Accepts]: Start accepts. Automaton has 23812 states and 32524 transitions. Word has length 234 [2023-11-22 18:50:57,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:50:57,507 INFO L495 AbstractCegarLoop]: Abstraction has 23812 states and 32524 transitions. [2023-11-22 18:50:57,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 28 states have (on average 9.071428571428571) internal successors, (254), 23 states have internal predecessors, (254), 13 states have call successors, (58), 12 states have call predecessors, (58), 11 states have return successors, (57), 15 states have call predecessors, (57), 13 states have call successors, (57) [2023-11-22 18:50:57,508 INFO L276 IsEmpty]: Start isEmpty. Operand 23812 states and 32524 transitions. [2023-11-22 18:50:57,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-11-22 18:50:57,525 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:50:57,525 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:50:57,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-22 18:50:57,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-22 18:50:57,729 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:50:57,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:50:57,730 INFO L85 PathProgramCache]: Analyzing trace with hash -2131741413, now seen corresponding path program 1 times [2023-11-22 18:50:57,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:50:57,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591771171] [2023-11-22 18:50:57,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:50:57,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:50:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:57,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:57,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:50:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:57,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:50:57,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:57,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:50:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:57,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:50:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:57,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:57,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:50:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:57,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:57,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 18:50:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:57,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 18:50:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:57,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:57,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 18:50:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:57,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:57,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 18:50:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:57,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:50:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:58,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-22 18:50:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:58,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-22 18:50:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:58,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:58,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:58,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:50:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:58,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:50:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:58,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-22 18:50:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:58,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:58,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:50:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:58,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-22 18:50:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:58,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:58,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 18:50:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:58,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:50:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:58,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-22 18:50:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:58,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-22 18:50:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:58,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 18:50:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:58,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-22 18:50:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:50:58,086 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-11-22 18:50:58,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:50:58,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591771171] [2023-11-22 18:50:58,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591771171] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:50:58,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:50:58,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-22 18:50:58,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656280216] [2023-11-22 18:50:58,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:50:58,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 18:50:58,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:50:58,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 18:50:58,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-22 18:50:58,088 INFO L87 Difference]: Start difference. First operand 23812 states and 32524 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-22 18:51:03,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:51:03,808 INFO L93 Difference]: Finished difference Result 54837 states and 78233 transitions. [2023-11-22 18:51:03,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-22 18:51:03,809 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 240 [2023-11-22 18:51:03,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:51:03,902 INFO L225 Difference]: With dead ends: 54837 [2023-11-22 18:51:03,902 INFO L226 Difference]: Without dead ends: 26518 [2023-11-22 18:51:03,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2023-11-22 18:51:03,951 INFO L413 NwaCegarLoop]: 641 mSDtfsCounter, 1500 mSDsluCounter, 1962 mSDsCounter, 0 mSdLazyCounter, 1903 mSolverCounterSat, 1165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1558 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 3068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1165 IncrementalHoareTripleChecker+Valid, 1903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-22 18:51:03,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1558 Valid, 2603 Invalid, 3068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1165 Valid, 1903 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-22 18:51:03,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26518 states. [2023-11-22 18:51:05,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26518 to 12376. [2023-11-22 18:51:05,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12376 states, 8606 states have (on average 1.3132698117592378) internal successors, (11302), 8749 states have internal predecessors, (11302), 2639 states have call successors, (2639), 1017 states have call predecessors, (2639), 1130 states have return successors, (2938), 2681 states have call predecessors, (2938), 2638 states have call successors, (2938) [2023-11-22 18:51:05,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12376 states to 12376 states and 16879 transitions. [2023-11-22 18:51:05,753 INFO L78 Accepts]: Start accepts. Automaton has 12376 states and 16879 transitions. Word has length 240 [2023-11-22 18:51:05,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:51:05,754 INFO L495 AbstractCegarLoop]: Abstraction has 12376 states and 16879 transitions. [2023-11-22 18:51:05,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-22 18:51:05,754 INFO L276 IsEmpty]: Start isEmpty. Operand 12376 states and 16879 transitions. [2023-11-22 18:51:05,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-11-22 18:51:05,762 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:51:05,762 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:51:05,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-22 18:51:05,763 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:51:05,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:51:05,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1289560281, now seen corresponding path program 1 times [2023-11-22 18:51:05,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:51:05,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667793922] [2023-11-22 18:51:05,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:51:05,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:51:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:51:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:51:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:51:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:51:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:51:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 18:51:05,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 18:51:05,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 18:51:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 18:51:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:51:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-22 18:51:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-22 18:51:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:05,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:51:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-22 18:51:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:51:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-22 18:51:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 18:51:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-22 18:51:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-22 18:51:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 18:51:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-22 18:51:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:05,989 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-11-22 18:51:05,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:51:05,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667793922] [2023-11-22 18:51:05,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667793922] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:51:05,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:51:05,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-22 18:51:05,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257236563] [2023-11-22 18:51:05,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:51:05,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 18:51:05,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:51:05,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 18:51:05,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-22 18:51:05,991 INFO L87 Difference]: Start difference. First operand 12376 states and 16879 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-22 18:51:08,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:51:08,540 INFO L93 Difference]: Finished difference Result 20306 states and 28468 transitions. [2023-11-22 18:51:08,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-22 18:51:08,541 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 240 [2023-11-22 18:51:08,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:51:08,578 INFO L225 Difference]: With dead ends: 20306 [2023-11-22 18:51:08,578 INFO L226 Difference]: Without dead ends: 7944 [2023-11-22 18:51:08,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-22 18:51:08,598 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 1046 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 1020 mSolverCounterSat, 920 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 1940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 920 IncrementalHoareTripleChecker+Valid, 1020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-22 18:51:08,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 1383 Invalid, 1940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [920 Valid, 1020 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-22 18:51:08,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7944 states. [2023-11-22 18:51:09,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7944 to 6154. [2023-11-22 18:51:09,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 4286 states have (on average 1.311945870275315) internal successors, (5623), 4356 states have internal predecessors, (5623), 1310 states have call successors, (1310), 513 states have call predecessors, (1310), 557 states have return successors, (1441), 1320 states have call predecessors, (1441), 1309 states have call successors, (1441) [2023-11-22 18:51:09,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 8374 transitions. [2023-11-22 18:51:09,370 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 8374 transitions. Word has length 240 [2023-11-22 18:51:09,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:51:09,370 INFO L495 AbstractCegarLoop]: Abstraction has 6154 states and 8374 transitions. [2023-11-22 18:51:09,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-22 18:51:09,370 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 8374 transitions. [2023-11-22 18:51:09,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-11-22 18:51:09,376 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:51:09,376 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-22 18:51:09,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-22 18:51:09,376 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:51:09,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:51:09,377 INFO L85 PathProgramCache]: Analyzing trace with hash 489471627, now seen corresponding path program 1 times [2023-11-22 18:51:09,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:51:09,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456064751] [2023-11-22 18:51:09,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:51:09,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:51:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:51:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:51:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:51:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:51:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:09,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:51:09,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 18:51:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 18:51:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 18:51:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:09,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 18:51:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:51:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-22 18:51:09,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-22 18:51:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:09,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:51:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-22 18:51:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:51:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-22 18:51:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 18:51:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:09,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-22 18:51:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-22 18:51:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 18:51:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:09,691 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2023-11-22 18:51:09,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:51:09,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456064751] [2023-11-22 18:51:09,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456064751] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:51:09,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:51:09,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-22 18:51:09,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826424212] [2023-11-22 18:51:09,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:51:09,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 18:51:09,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:51:09,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 18:51:09,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-22 18:51:09,693 INFO L87 Difference]: Start difference. First operand 6154 states and 8374 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-22 18:51:12,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:51:12,920 INFO L93 Difference]: Finished difference Result 16597 states and 23346 transitions. [2023-11-22 18:51:12,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-22 18:51:12,920 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 3 states have internal predecessors, (118), 3 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 244 [2023-11-22 18:51:12,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:51:12,947 INFO L225 Difference]: With dead ends: 16597 [2023-11-22 18:51:12,947 INFO L226 Difference]: Without dead ends: 10424 [2023-11-22 18:51:12,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2023-11-22 18:51:12,961 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 1198 mSDsluCounter, 1498 mSDsCounter, 0 mSdLazyCounter, 1485 mSolverCounterSat, 890 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1244 SdHoareTripleChecker+Valid, 2030 SdHoareTripleChecker+Invalid, 2375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 890 IncrementalHoareTripleChecker+Valid, 1485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-22 18:51:12,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1244 Valid, 2030 Invalid, 2375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [890 Valid, 1485 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-22 18:51:12,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10424 states. [2023-11-22 18:51:13,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10424 to 8614. [2023-11-22 18:51:13,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8614 states, 6179 states have (on average 1.300534067001133) internal successors, (8036), 6261 states have internal predecessors, (8036), 1664 states have call successors, (1664), 699 states have call predecessors, (1664), 770 states have return successors, (1885), 1689 states have call predecessors, (1885), 1663 states have call successors, (1885) [2023-11-22 18:51:13,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8614 states to 8614 states and 11585 transitions. [2023-11-22 18:51:13,967 INFO L78 Accepts]: Start accepts. Automaton has 8614 states and 11585 transitions. Word has length 244 [2023-11-22 18:51:13,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:51:13,968 INFO L495 AbstractCegarLoop]: Abstraction has 8614 states and 11585 transitions. [2023-11-22 18:51:13,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-22 18:51:13,968 INFO L276 IsEmpty]: Start isEmpty. Operand 8614 states and 11585 transitions. [2023-11-22 18:51:13,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-11-22 18:51:13,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:51:13,975 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-22 18:51:13,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-22 18:51:13,975 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:51:13,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:51:13,976 INFO L85 PathProgramCache]: Analyzing trace with hash -2086592023, now seen corresponding path program 2 times [2023-11-22 18:51:13,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:51:13,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858573175] [2023-11-22 18:51:13,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:51:13,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:51:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:51:14,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:51:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:51:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 18:51:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:51:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-22 18:51:14,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-22 18:51:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 18:51:14,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-22 18:51:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-22 18:51:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 18:51:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-22 18:51:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:14,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:51:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-22 18:51:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:51:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-22 18:51:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-22 18:51:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-11-22 18:51:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 18:51:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-22 18:51:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:14,262 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2023-11-22 18:51:14,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:51:14,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858573175] [2023-11-22 18:51:14,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858573175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:51:14,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:51:14,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-22 18:51:14,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497119721] [2023-11-22 18:51:14,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:51:14,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 18:51:14,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:51:14,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 18:51:14,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-22 18:51:14,268 INFO L87 Difference]: Start difference. First operand 8614 states and 11585 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-22 18:51:18,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:51:18,038 INFO L93 Difference]: Finished difference Result 19846 states and 27620 transitions. [2023-11-22 18:51:18,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-22 18:51:18,039 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 244 [2023-11-22 18:51:18,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:51:18,085 INFO L225 Difference]: With dead ends: 19846 [2023-11-22 18:51:18,085 INFO L226 Difference]: Without dead ends: 11212 [2023-11-22 18:51:18,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2023-11-22 18:51:18,102 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 1561 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 1459 mSolverCounterSat, 1134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 1766 SdHoareTripleChecker+Invalid, 2593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1134 IncrementalHoareTripleChecker+Valid, 1459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-22 18:51:18,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1615 Valid, 1766 Invalid, 2593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1134 Valid, 1459 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-22 18:51:18,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11212 states. [2023-11-22 18:51:19,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11212 to 9568. [2023-11-22 18:51:19,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9568 states, 6777 states have (on average 1.289361074221632) internal successors, (8738), 6899 states have internal predecessors, (8738), 1810 states have call successors, (1810), 759 states have call predecessors, (1810), 980 states have return successors, (2478), 1951 states have call predecessors, (2478), 1809 states have call successors, (2478) [2023-11-22 18:51:19,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9568 states to 9568 states and 13026 transitions. [2023-11-22 18:51:19,419 INFO L78 Accepts]: Start accepts. Automaton has 9568 states and 13026 transitions. Word has length 244 [2023-11-22 18:51:19,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:51:19,419 INFO L495 AbstractCegarLoop]: Abstraction has 9568 states and 13026 transitions. [2023-11-22 18:51:19,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-22 18:51:19,419 INFO L276 IsEmpty]: Start isEmpty. Operand 9568 states and 13026 transitions. [2023-11-22 18:51:19,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2023-11-22 18:51:19,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:51:19,422 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:51:19,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-22 18:51:19,422 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:51:19,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:51:19,423 INFO L85 PathProgramCache]: Analyzing trace with hash -2095447189, now seen corresponding path program 1 times [2023-11-22 18:51:19,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:51:19,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358941602] [2023-11-22 18:51:19,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:51:19,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:51:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:19,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:51:19,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:51:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:51:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:51:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:51:19,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:19,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 18:51:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 18:51:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 18:51:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 18:51:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:51:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-22 18:51:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-22 18:51:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:51:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-22 18:51:19,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:19,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:51:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:20,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-22 18:51:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:20,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:20,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:20,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 18:51:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:20,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:20,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-22 18:51:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:20,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-22 18:51:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:20,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 18:51:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:20,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 18:51:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:20,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:20,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 18:51:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:20,131 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 25 proven. 4 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-22 18:51:20,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:51:20,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358941602] [2023-11-22 18:51:20,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358941602] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:51:20,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266822322] [2023-11-22 18:51:20,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:51:20,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:51:20,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:51:20,148 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 18:51:20,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-22 18:51:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:21,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 2806 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-22 18:51:21,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:51:21,204 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-11-22 18:51:21,204 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 18:51:21,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266822322] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:51:21,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 18:51:21,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 15 [2023-11-22 18:51:21,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557917888] [2023-11-22 18:51:21,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:51:21,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 18:51:21,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:51:21,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 18:51:21,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-11-22 18:51:21,206 INFO L87 Difference]: Start difference. First operand 9568 states and 13026 transitions. Second operand has 7 states, 6 states have (on average 20.0) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-22 18:51:22,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:51:22,682 INFO L93 Difference]: Finished difference Result 19246 states and 26211 transitions. [2023-11-22 18:51:22,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 18:51:22,683 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.0) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) Word has length 249 [2023-11-22 18:51:22,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:51:22,702 INFO L225 Difference]: With dead ends: 19246 [2023-11-22 18:51:22,703 INFO L226 Difference]: Without dead ends: 9736 [2023-11-22 18:51:22,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-22 18:51:22,717 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 15 mSDsluCounter, 2764 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 3321 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-22 18:51:22,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 3321 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-22 18:51:22,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9736 states. [2023-11-22 18:51:23,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9736 to 9604. [2023-11-22 18:51:23,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9604 states, 6804 states have (on average 1.2882128159905937) internal successors, (8765), 6917 states have internal predecessors, (8765), 1810 states have call successors, (1810), 759 states have call predecessors, (1810), 989 states have return successors, (2496), 1969 states have call predecessors, (2496), 1809 states have call successors, (2496) [2023-11-22 18:51:23,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9604 states to 9604 states and 13071 transitions. [2023-11-22 18:51:23,894 INFO L78 Accepts]: Start accepts. Automaton has 9604 states and 13071 transitions. Word has length 249 [2023-11-22 18:51:23,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:51:23,894 INFO L495 AbstractCegarLoop]: Abstraction has 9604 states and 13071 transitions. [2023-11-22 18:51:23,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.0) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-22 18:51:23,895 INFO L276 IsEmpty]: Start isEmpty. Operand 9604 states and 13071 transitions. [2023-11-22 18:51:23,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2023-11-22 18:51:23,897 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:51:23,897 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:51:23,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-22 18:51:24,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-22 18:51:24,116 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:51:24,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:51:24,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1766909082, now seen corresponding path program 2 times [2023-11-22 18:51:24,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:51:24,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242557599] [2023-11-22 18:51:24,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:51:24,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:51:24,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:24,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:51:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:51:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:51:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:51:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:51:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:24,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 18:51:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 18:51:24,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 18:51:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:24,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 18:51:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:51:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-22 18:51:24,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-22 18:51:24,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:24,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:51:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-22 18:51:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:51:24,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-22 18:51:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 18:51:24,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-22 18:51:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-22 18:51:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 18:51:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 18:51:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 18:51:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:24,785 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 25 proven. 4 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-11-22 18:51:24,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:51:24,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242557599] [2023-11-22 18:51:24,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242557599] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:51:24,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955695815] [2023-11-22 18:51:24,785 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 18:51:24,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:51:24,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:51:24,787 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 18:51:24,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-22 18:51:25,709 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-22 18:51:25,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 18:51:25,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 2832 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-22 18:51:25,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:51:25,742 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2023-11-22 18:51:25,742 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 18:51:25,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955695815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:51:25,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 18:51:25,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 13 [2023-11-22 18:51:25,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679098187] [2023-11-22 18:51:25,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:51:25,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 18:51:25,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:51:25,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 18:51:25,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-11-22 18:51:25,744 INFO L87 Difference]: Start difference. First operand 9604 states and 13071 transitions. Second operand has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 5 states have internal predecessors, (128), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-22 18:51:27,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:51:27,189 INFO L93 Difference]: Finished difference Result 19282 states and 26247 transitions. [2023-11-22 18:51:27,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 18:51:27,190 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 5 states have internal predecessors, (128), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) Word has length 255 [2023-11-22 18:51:27,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:51:27,213 INFO L225 Difference]: With dead ends: 19282 [2023-11-22 18:51:27,213 INFO L226 Difference]: Without dead ends: 9736 [2023-11-22 18:51:27,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-11-22 18:51:27,227 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 11 mSDsluCounter, 2743 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 3294 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-22 18:51:27,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 3294 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-22 18:51:27,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9736 states. [2023-11-22 18:51:28,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9736 to 9622. [2023-11-22 18:51:28,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9622 states, 6822 states have (on average 1.2874523600117267) internal successors, (8783), 6926 states have internal predecessors, (8783), 1810 states have call successors, (1810), 759 states have call predecessors, (1810), 989 states have return successors, (2496), 1978 states have call predecessors, (2496), 1809 states have call successors, (2496) [2023-11-22 18:51:28,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9622 states to 9622 states and 13089 transitions. [2023-11-22 18:51:28,375 INFO L78 Accepts]: Start accepts. Automaton has 9622 states and 13089 transitions. Word has length 255 [2023-11-22 18:51:28,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:51:28,376 INFO L495 AbstractCegarLoop]: Abstraction has 9622 states and 13089 transitions. [2023-11-22 18:51:28,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 5 states have internal predecessors, (128), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-22 18:51:28,376 INFO L276 IsEmpty]: Start isEmpty. Operand 9622 states and 13089 transitions. [2023-11-22 18:51:28,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-11-22 18:51:28,379 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:51:28,379 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:51:28,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-22 18:51:28,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:51:28,599 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:51:28,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:51:28,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1790650571, now seen corresponding path program 3 times [2023-11-22 18:51:28,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:51:28,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350110460] [2023-11-22 18:51:28,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:51:28,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:51:28,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:51:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:51:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:51:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:51:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:51:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 18:51:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 18:51:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 18:51:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 18:51:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:51:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-22 18:51:29,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-22 18:51:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:51:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-22 18:51:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:51:29,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-22 18:51:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-22 18:51:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:29,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:29,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-11-22 18:51:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-11-22 18:51:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 18:51:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 18:51:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 18:51:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:29,372 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-22 18:51:29,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:51:29,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350110460] [2023-11-22 18:51:29,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350110460] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:51:29,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894970039] [2023-11-22 18:51:29,372 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-22 18:51:29,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:51:29,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:51:29,373 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 18:51:29,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-22 18:51:31,941 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-22 18:51:31,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 18:51:31,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 2519 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-22 18:51:31,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:51:31,992 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 165 proven. 1 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2023-11-22 18:51:31,993 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 18:51:32,152 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-22 18:51:32,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894970039] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 18:51:32,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 18:51:32,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 6] total 17 [2023-11-22 18:51:32,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660284458] [2023-11-22 18:51:32,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 18:51:32,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-22 18:51:32,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:51:32,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-22 18:51:32,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-11-22 18:51:32,154 INFO L87 Difference]: Start difference. First operand 9622 states and 13089 transitions. Second operand has 17 states, 17 states have (on average 9.176470588235293) internal successors, (156), 11 states have internal predecessors, (156), 4 states have call successors, (61), 8 states have call predecessors, (61), 4 states have return successors, (42), 2 states have call predecessors, (42), 4 states have call successors, (42) [2023-11-22 18:51:36,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:51:36,668 INFO L93 Difference]: Finished difference Result 20684 states and 29010 transitions. [2023-11-22 18:51:36,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-22 18:51:36,669 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 9.176470588235293) internal successors, (156), 11 states have internal predecessors, (156), 4 states have call successors, (61), 8 states have call predecessors, (61), 4 states have return successors, (42), 2 states have call predecessors, (42), 4 states have call successors, (42) Word has length 261 [2023-11-22 18:51:36,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:51:36,713 INFO L225 Difference]: With dead ends: 20684 [2023-11-22 18:51:36,713 INFO L226 Difference]: Without dead ends: 11093 [2023-11-22 18:51:36,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 582 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=159, Invalid=597, Unknown=0, NotChecked=0, Total=756 [2023-11-22 18:51:36,731 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 858 mSDsluCounter, 3258 mSDsCounter, 0 mSdLazyCounter, 3167 mSolverCounterSat, 736 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 3658 SdHoareTripleChecker+Invalid, 3903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 736 IncrementalHoareTripleChecker+Valid, 3167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-22 18:51:36,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 3658 Invalid, 3903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [736 Valid, 3167 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-22 18:51:36,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11093 states. [2023-11-22 18:51:38,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11093 to 9655. [2023-11-22 18:51:38,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9655 states, 6855 states have (on average 1.287819110138585) internal successors, (8828), 6959 states have internal predecessors, (8828), 1810 states have call successors, (1810), 759 states have call predecessors, (1810), 989 states have return successors, (2496), 1978 states have call predecessors, (2496), 1809 states have call successors, (2496) [2023-11-22 18:51:38,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9655 states to 9655 states and 13134 transitions. [2023-11-22 18:51:38,042 INFO L78 Accepts]: Start accepts. Automaton has 9655 states and 13134 transitions. Word has length 261 [2023-11-22 18:51:38,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:51:38,043 INFO L495 AbstractCegarLoop]: Abstraction has 9655 states and 13134 transitions. [2023-11-22 18:51:38,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.176470588235293) internal successors, (156), 11 states have internal predecessors, (156), 4 states have call successors, (61), 8 states have call predecessors, (61), 4 states have return successors, (42), 2 states have call predecessors, (42), 4 states have call successors, (42) [2023-11-22 18:51:38,043 INFO L276 IsEmpty]: Start isEmpty. Operand 9655 states and 13134 transitions. [2023-11-22 18:51:38,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-11-22 18:51:38,046 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:51:38,046 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:51:38,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-22 18:51:38,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:51:38,258 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:51:38,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:51:38,259 INFO L85 PathProgramCache]: Analyzing trace with hash -53092090, now seen corresponding path program 4 times [2023-11-22 18:51:38,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:51:38,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622888892] [2023-11-22 18:51:38,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:51:38,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:51:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:51:38,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:51:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:51:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:51:38,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:51:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 18:51:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 18:51:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 18:51:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 18:51:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:51:38,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-22 18:51:38,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-22 18:51:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:51:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-22 18:51:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:51:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-11-22 18:51:38,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-11-22 18:51:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:38,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-11-22 18:51:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 18:51:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-22 18:51:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-11-22 18:51:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 18:51:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:38,941 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-22 18:51:38,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:51:38,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622888892] [2023-11-22 18:51:38,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622888892] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:51:38,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971212257] [2023-11-22 18:51:38,942 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-22 18:51:38,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:51:38,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:51:38,943 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 18:51:38,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-22 18:51:40,155 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-22 18:51:40,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 18:51:40,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 2979 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-22 18:51:40,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:51:40,226 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 165 proven. 3 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2023-11-22 18:51:40,227 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 18:51:40,434 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-22 18:51:40,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971212257] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 18:51:40,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 18:51:40,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 7] total 20 [2023-11-22 18:51:40,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666869326] [2023-11-22 18:51:40,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 18:51:40,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-22 18:51:40,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:51:40,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-22 18:51:40,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2023-11-22 18:51:40,436 INFO L87 Difference]: Start difference. First operand 9655 states and 13134 transitions. Second operand has 20 states, 20 states have (on average 7.95) internal successors, (159), 14 states have internal predecessors, (159), 4 states have call successors, (61), 8 states have call predecessors, (61), 4 states have return successors, (42), 2 states have call predecessors, (42), 4 states have call successors, (42) [2023-11-22 18:51:45,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:51:45,720 INFO L93 Difference]: Finished difference Result 20798 states and 29199 transitions. [2023-11-22 18:51:45,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-22 18:51:45,720 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 7.95) internal successors, (159), 14 states have internal predecessors, (159), 4 states have call successors, (61), 8 states have call predecessors, (61), 4 states have return successors, (42), 2 states have call predecessors, (42), 4 states have call successors, (42) Word has length 262 [2023-11-22 18:51:45,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:51:45,750 INFO L225 Difference]: With dead ends: 20798 [2023-11-22 18:51:45,751 INFO L226 Difference]: Without dead ends: 11174 [2023-11-22 18:51:45,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 583 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=212, Invalid=910, Unknown=0, NotChecked=0, Total=1122 [2023-11-22 18:51:45,771 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 1078 mSDsluCounter, 3746 mSDsCounter, 0 mSdLazyCounter, 3688 mSolverCounterSat, 908 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 4145 SdHoareTripleChecker+Invalid, 4596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 908 IncrementalHoareTripleChecker+Valid, 3688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-22 18:51:45,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1091 Valid, 4145 Invalid, 4596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [908 Valid, 3688 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-22 18:51:45,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11174 states. [2023-11-22 18:51:47,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11174 to 9676. [2023-11-22 18:51:47,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9676 states, 6876 states have (on average 1.2886852821407795) internal successors, (8861), 6980 states have internal predecessors, (8861), 1810 states have call successors, (1810), 759 states have call predecessors, (1810), 989 states have return successors, (2496), 1978 states have call predecessors, (2496), 1809 states have call successors, (2496) [2023-11-22 18:51:47,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9676 states to 9676 states and 13167 transitions. [2023-11-22 18:51:47,133 INFO L78 Accepts]: Start accepts. Automaton has 9676 states and 13167 transitions. Word has length 262 [2023-11-22 18:51:47,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:51:47,134 INFO L495 AbstractCegarLoop]: Abstraction has 9676 states and 13167 transitions. [2023-11-22 18:51:47,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.95) internal successors, (159), 14 states have internal predecessors, (159), 4 states have call successors, (61), 8 states have call predecessors, (61), 4 states have return successors, (42), 2 states have call predecessors, (42), 4 states have call successors, (42) [2023-11-22 18:51:47,134 INFO L276 IsEmpty]: Start isEmpty. Operand 9676 states and 13167 transitions. [2023-11-22 18:51:47,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2023-11-22 18:51:47,137 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:51:47,137 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:51:47,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-22 18:51:47,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-22 18:51:47,349 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:51:47,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:51:47,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1374539733, now seen corresponding path program 5 times [2023-11-22 18:51:47,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:51:47,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122514866] [2023-11-22 18:51:47,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:51:47,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:51:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:47,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:47,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:51:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:47,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:51:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:47,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-22 18:51:47,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:47,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 18:51:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:47,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:47,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-22 18:51:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:47,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:47,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 18:51:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:47,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 18:51:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:47,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:47,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 18:51:47,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:47,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:47,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:47,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 18:51:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:47,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:51:47,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:47,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-22 18:51:47,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:48,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 18:51:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:48,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:48,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:48,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:51:48,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:48,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-22 18:51:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:48,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:48,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:48,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 18:51:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:48,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-11-22 18:51:48,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:48,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:48,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:48,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-11-22 18:51:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:48,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:51:48,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:48,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:48,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-11-22 18:51:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:48,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-11-22 18:51:48,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:48,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-11-22 18:51:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:48,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-11-22 18:51:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:48,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:51:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:48,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 18:51:48,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:51:48,231 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-22 18:51:48,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:51:48,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122514866] [2023-11-22 18:51:48,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122514866] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:51:48,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540644656] [2023-11-22 18:51:48,233 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-22 18:51:48,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:51:48,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:51:48,234 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 18:51:48,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process Killed by 15