./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/libvsync/rec_mcslock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 44c38e66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/libvsync/rec_mcslock.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 89f4ecf17cdd703d57fdf977621016996b601a0e10c2b1b5ffeae48ee5db4f63 --- Real Ultimate output --- This is Ultimate 0.3.0-?-44c38e6-m [2025-04-24 20:42:39,724 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 20:42:39,771 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-24 20:42:39,774 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 20:42:39,774 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 20:42:39,791 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 20:42:39,792 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 20:42:39,792 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 20:42:39,793 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 20:42:39,793 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 20:42:39,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 20:42:39,794 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 20:42:39,794 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 20:42:39,794 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 20:42:39,795 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 20:42:39,795 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 20:42:39,795 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-24 20:42:39,795 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 20:42:39,795 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 20:42:39,795 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 20:42:39,795 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 20:42:39,795 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 20:42:39,795 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 20:42:39,795 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 20:42:39,795 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 20:42:39,796 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 20:42:39,796 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 20:42:39,796 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 20:42:39,796 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 20:42:39,796 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 20:42:39,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 20:42:39,796 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 20:42:39,797 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 20:42:39,797 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 20:42:39,797 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 20:42:39,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 20:42:39,797 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 20:42:39,797 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 20:42:39,797 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 20:42:39,797 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 20:42:39,797 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 20:42:39,797 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-24 20:42:39,797 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 20:42:39,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-24 20:42:39,798 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 20:42:39,798 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 20:42:39,798 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 20:42:39,798 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/UGemCutter-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 -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89f4ecf17cdd703d57fdf977621016996b601a0e10c2b1b5ffeae48ee5db4f63 [2025-04-24 20:42:40,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 20:42:40,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 20:42:40,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 20:42:40,027 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 20:42:40,028 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 20:42:40,030 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/libvsync/rec_mcslock.i [2025-04-24 20:42:41,285 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/77848472a/de3a64ffae4d4bfa881363afba57d97a/FLAG81fec7221 [2025-04-24 20:42:41,619 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 20:42:41,620 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_mcslock.i [2025-04-24 20:42:41,653 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/77848472a/de3a64ffae4d4bfa881363afba57d97a/FLAG81fec7221 [2025-04-24 20:42:42,286 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/77848472a/de3a64ffae4d4bfa881363afba57d97a [2025-04-24 20:42:42,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 20:42:42,289 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 20:42:42,289 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 20:42:42,289 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 20:42:42,292 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 20:42:42,293 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 08:42:42" (1/1) ... [2025-04-24 20:42:42,294 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eedaa30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:42:42, skipping insertion in model container [2025-04-24 20:42:42,294 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 08:42:42" (1/1) ... [2025-04-24 20:42:42,352 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 20:42:43,746 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_mcslock.i[173235,173248] [2025-04-24 20:42:43,754 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_mcslock.i[173609,173622] [2025-04-24 20:42:43,992 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_mcslock.i[196613,196626] [2025-04-24 20:42:43,992 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_mcslock.i[196680,196693] [2025-04-24 20:42:44,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 20:42:44,014 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 20:42:44,098 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2025-04-24 20:42:44,099 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2025-04-24 20:42:44,099 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2025-04-24 20:42:44,100 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2025-04-24 20:42:44,100 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2025-04-24 20:42:44,101 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2025-04-24 20:42:44,101 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2025-04-24 20:42:44,102 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2025-04-24 20:42:44,102 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2025-04-24 20:42:44,103 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2025-04-24 20:42:44,103 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2025-04-24 20:42:44,104 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2025-04-24 20:42:44,104 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2025-04-24 20:42:44,104 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2025-04-24 20:42:44,104 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2025-04-24 20:42:44,105 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2025-04-24 20:42:44,105 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2025-04-24 20:42:44,105 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2025-04-24 20:42:44,105 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2025-04-24 20:42:44,106 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2025-04-24 20:42:44,106 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2025-04-24 20:42:44,106 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2025-04-24 20:42:44,106 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2025-04-24 20:42:44,107 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2025-04-24 20:42:44,107 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2025-04-24 20:42:44,107 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2025-04-24 20:42:44,107 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2025-04-24 20:42:44,108 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2025-04-24 20:42:44,108 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2025-04-24 20:42:44,108 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2025-04-24 20:42:44,109 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2025-04-24 20:42:44,110 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2025-04-24 20:42:44,110 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2025-04-24 20:42:44,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2025-04-24 20:42:44,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2025-04-24 20:42:44,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2025-04-24 20:42:44,112 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2025-04-24 20:42:44,112 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2025-04-24 20:42:44,112 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2025-04-24 20:42:44,113 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2025-04-24 20:42:44,113 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2025-04-24 20:42:44,113 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2025-04-24 20:42:44,114 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2025-04-24 20:42:44,114 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2025-04-24 20:42:44,115 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2025-04-24 20:42:44,115 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2025-04-24 20:42:44,116 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2025-04-24 20:42:44,116 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2025-04-24 20:42:44,117 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2025-04-24 20:42:44,117 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2025-04-24 20:42:44,118 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2025-04-24 20:42:44,118 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2025-04-24 20:42:44,119 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2025-04-24 20:42:44,120 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2025-04-24 20:42:44,120 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2025-04-24 20:42:44,120 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2025-04-24 20:42:44,120 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2025-04-24 20:42:44,121 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2025-04-24 20:42:44,121 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2025-04-24 20:42:44,121 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2025-04-24 20:42:44,121 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2025-04-24 20:42:44,122 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2025-04-24 20:42:44,122 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2025-04-24 20:42:44,122 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2025-04-24 20:42:44,122 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2025-04-24 20:42:44,124 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2025-04-24 20:42:44,124 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2025-04-24 20:42:44,125 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2025-04-24 20:42:44,125 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2025-04-24 20:42:44,125 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2025-04-24 20:42:44,126 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2025-04-24 20:42:44,127 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2025-04-24 20:42:44,127 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2025-04-24 20:42:44,127 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2025-04-24 20:42:44,127 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2025-04-24 20:42:44,128 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2025-04-24 20:42:44,128 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2025-04-24 20:42:44,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2025-04-24 20:42:44,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2025-04-24 20:42:44,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2025-04-24 20:42:44,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2025-04-24 20:42:44,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2025-04-24 20:42:44,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2025-04-24 20:42:44,131 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2025-04-24 20:42:44,131 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2025-04-24 20:42:44,131 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2025-04-24 20:42:44,132 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2025-04-24 20:42:44,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2025-04-24 20:42:44,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2025-04-24 20:42:44,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2025-04-24 20:42:44,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2025-04-24 20:42:44,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2025-04-24 20:42:44,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2025-04-24 20:42:44,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2025-04-24 20:42:44,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2025-04-24 20:42:44,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2025-04-24 20:42:44,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2025-04-24 20:42:44,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2025-04-24 20:42:44,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2025-04-24 20:42:44,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2025-04-24 20:42:44,181 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_mcslock.i[173235,173248] [2025-04-24 20:42:44,183 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_mcslock.i[173609,173622] [2025-04-24 20:42:44,193 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_mcslock.i[196613,196626] [2025-04-24 20:42:44,194 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_mcslock.i[196680,196693] [2025-04-24 20:42:44,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 20:42:44,395 INFO L204 MainTranslator]: Completed translation [2025-04-24 20:42:44,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:42:44 WrapperNode [2025-04-24 20:42:44,396 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 20:42:44,397 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 20:42:44,397 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 20:42:44,397 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 20:42:44,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:42:44" (1/1) ... [2025-04-24 20:42:44,463 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:42:44" (1/1) ... [2025-04-24 20:42:44,510 INFO L138 Inliner]: procedures = 924, calls = 951, calls flagged for inlining = 834, calls inlined = 53, statements flattened = 455 [2025-04-24 20:42:44,511 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 20:42:44,511 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 20:42:44,511 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 20:42:44,511 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 20:42:44,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:42:44" (1/1) ... [2025-04-24 20:42:44,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:42:44" (1/1) ... [2025-04-24 20:42:44,522 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:42:44" (1/1) ... [2025-04-24 20:42:44,522 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:42:44" (1/1) ... [2025-04-24 20:42:44,539 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:42:44" (1/1) ... [2025-04-24 20:42:44,544 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:42:44" (1/1) ... [2025-04-24 20:42:44,551 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:42:44" (1/1) ... [2025-04-24 20:42:44,555 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:42:44" (1/1) ... [2025-04-24 20:42:44,557 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:42:44" (1/1) ... [2025-04-24 20:42:44,564 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 20:42:44,565 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 20:42:44,565 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 20:42:44,566 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 20:42:44,567 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:42:44" (1/1) ... [2025-04-24 20:42:44,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 20:42:44,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:42:44,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-24 20:42:44,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-24 20:42:44,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-24 20:42:44,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 20:42:44,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-04-24 20:42:44,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 20:42:44,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 20:42:44,615 INFO L130 BoogieDeclarations]: Found specification of procedure run [2025-04-24 20:42:44,615 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2025-04-24 20:42:44,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-24 20:42:44,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-04-24 20:42:44,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-24 20:42:44,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-24 20:42:44,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-04-24 20:42:44,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-24 20:42:44,616 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-24 20:42:44,752 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 20:42:44,754 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 20:42:45,296 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 20:42:45,296 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 20:42:45,573 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 20:42:45,573 INFO L312 CfgBuilder]: Removed 34 assume(true) statements. [2025-04-24 20:42:45,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 08:42:45 BoogieIcfgContainer [2025-04-24 20:42:45,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 20:42:45,575 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 20:42:45,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 20:42:45,579 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 20:42:45,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 08:42:42" (1/3) ... [2025-04-24 20:42:45,580 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c235dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 08:42:45, skipping insertion in model container [2025-04-24 20:42:45,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:42:44" (2/3) ... [2025-04-24 20:42:45,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c235dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 08:42:45, skipping insertion in model container [2025-04-24 20:42:45,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 08:42:45" (3/3) ... [2025-04-24 20:42:45,583 INFO L128 eAbstractionObserver]: Analyzing ICFG rec_mcslock.i [2025-04-24 20:42:45,595 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 20:42:45,597 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rec_mcslock.i that has 2 procedures, 127 locations, 197 edges, 1 initial locations, 39 loop locations, and 3 error locations. [2025-04-24 20:42:45,598 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 20:42:45,750 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-24 20:42:45,782 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 20:42:45,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 20:42:45,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:42:45,785 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-24 20:42:45,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-24 20:42:45,887 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 20:42:45,898 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == runThread1of1ForFork0 ======== [2025-04-24 20:42:45,902 INFO L340 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@79ad9aa2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 20:42:45,903 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-24 20:42:46,211 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 20:42:46,211 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:42:46,211 INFO L139 ounterexampleChecker]: Examining path program with hash -2041273076, occurence #1 [2025-04-24 20:42:46,211 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:42:46,211 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:42:46,214 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:42:46,215 INFO L85 PathProgramCache]: Analyzing trace with hash -305815618, now seen corresponding path program 1 times [2025-04-24 20:42:46,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:42:46,220 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181734598] [2025-04-24 20:42:46,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:42:46,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:42:46,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-04-24 20:42:46,283 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-04-24 20:42:46,284 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:42:46,284 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:42:46,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:42:46,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:42:46,361 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181734598] [2025-04-24 20:42:46,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181734598] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:42:46,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:42:46,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 20:42:46,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404750058] [2025-04-24 20:42:46,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:42:46,367 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-24 20:42:46,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:42:46,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-24 20:42:46,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-24 20:42:46,382 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:46,384 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:42:46,385 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:42:46,385 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:46,535 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:46,536 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-24 20:42:46,536 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 20:42:46,536 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:42:46,536 INFO L139 ounterexampleChecker]: Examining path program with hash 740795212, occurence #1 [2025-04-24 20:42:46,536 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:42:46,536 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:42:46,536 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:42:46,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1740277457, now seen corresponding path program 1 times [2025-04-24 20:42:46,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:42:46,537 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212342144] [2025-04-24 20:42:46,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:42:46,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:42:46,554 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-04-24 20:42:46,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-04-24 20:42:46,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:42:46,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:42:46,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:42:46,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:42:46,774 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212342144] [2025-04-24 20:42:46,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212342144] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:42:46,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:42:46,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-24 20:42:46,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198584606] [2025-04-24 20:42:46,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:42:46,775 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 20:42:46,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:42:46,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 20:42:46,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-24 20:42:46,775 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:46,775 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:42:46,776 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:42:46,776 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:46,776 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:46,957 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:46,957 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:42:46,957 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-24 20:42:46,958 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 20:42:46,958 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:42:46,958 INFO L139 ounterexampleChecker]: Examining path program with hash 1236213922, occurence #1 [2025-04-24 20:42:46,958 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:42:46,958 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:42:46,958 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:42:46,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1830560410, now seen corresponding path program 1 times [2025-04-24 20:42:46,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:42:46,958 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542974973] [2025-04-24 20:42:46,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:42:46,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:42:46,977 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-04-24 20:42:47,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-04-24 20:42:47,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:42:47,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:42:47,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:42:47,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:42:47,292 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542974973] [2025-04-24 20:42:47,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542974973] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:42:47,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:42:47,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-24 20:42:47,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104388148] [2025-04-24 20:42:47,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:42:47,293 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-24 20:42:47,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:42:47,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-24 20:42:47,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-04-24 20:42:47,294 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:47,294 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:42:47,294 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:42:47,294 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:47,294 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:42:47,294 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:54,030 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:54,030 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:42:54,030 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-24 20:42:54,032 INFO L790 garLoopResultBuilder]: Registering result SAFE for location runErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-04-24 20:42:54,032 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-24 20:42:54,036 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-24 20:42:54,037 INFO L320 ceAbstractionStarter]: Result for error location runThread1of1ForFork0 was SAFE (1/2) [2025-04-24 20:42:54,040 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 20:42:54,040 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 20:42:54,040 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 20:42:54,041 INFO L340 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@79ad9aa2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 20:42:54,041 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-24 20:42:54,042 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 20:42:54,042 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:42:54,042 INFO L139 ounterexampleChecker]: Examining path program with hash 1783648759, occurence #1 [2025-04-24 20:42:54,042 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:42:54,042 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:42:54,042 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:42:54,042 INFO L85 PathProgramCache]: Analyzing trace with hash -600716342, now seen corresponding path program 1 times [2025-04-24 20:42:54,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:42:54,043 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373401125] [2025-04-24 20:42:54,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:42:54,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:42:54,047 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-24 20:42:54,048 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-24 20:42:54,048 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:42:54,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:42:54,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:42:54,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:42:54,053 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373401125] [2025-04-24 20:42:54,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373401125] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:42:54,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:42:54,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 20:42:54,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575805648] [2025-04-24 20:42:54,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:42:54,054 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-24 20:42:54,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:42:54,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-24 20:42:54,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-24 20:42:54,054 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:54,054 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:42:54,054 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:42:54,054 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:54,066 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:54,067 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-24 20:42:54,067 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 20:42:54,067 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:42:54,067 INFO L139 ounterexampleChecker]: Examining path program with hash -1149312047, occurence #1 [2025-04-24 20:42:54,067 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:42:54,067 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:42:54,067 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:42:54,067 INFO L85 PathProgramCache]: Analyzing trace with hash 2137021554, now seen corresponding path program 1 times [2025-04-24 20:42:54,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:42:54,068 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235845321] [2025-04-24 20:42:54,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:42:54,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:42:54,071 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-24 20:42:54,074 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-24 20:42:54,074 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:42:54,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:42:54,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:42:54,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:42:54,093 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235845321] [2025-04-24 20:42:54,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235845321] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:42:54,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:42:54,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 20:42:54,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201383076] [2025-04-24 20:42:54,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:42:54,093 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 20:42:54,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:42:54,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 20:42:54,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 20:42:54,094 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:54,094 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:42:54,094 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:42:54,094 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:54,094 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:54,279 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:54,279 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:54,279 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-24 20:42:54,279 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 20:42:54,279 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:42:54,279 INFO L139 ounterexampleChecker]: Examining path program with hash -1892509710, occurence #1 [2025-04-24 20:42:54,280 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:42:54,280 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:42:54,280 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:42:54,280 INFO L85 PathProgramCache]: Analyzing trace with hash -2018767254, now seen corresponding path program 1 times [2025-04-24 20:42:54,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:42:54,280 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935314472] [2025-04-24 20:42:54,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:42:54,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:42:54,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-04-24 20:42:54,290 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-04-24 20:42:54,290 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:42:54,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:42:54,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:42:54,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:42:54,332 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935314472] [2025-04-24 20:42:54,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935314472] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:42:54,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:42:54,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-24 20:42:54,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686113470] [2025-04-24 20:42:54,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:42:54,332 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 20:42:54,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:42:54,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 20:42:54,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-24 20:42:54,333 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:54,333 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:42:54,333 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:42:54,333 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:54,333 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:54,333 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:54,346 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:54,346 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:54,347 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:42:54,347 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-24 20:42:54,347 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 20:42:54,347 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:42:54,347 INFO L139 ounterexampleChecker]: Examining path program with hash -1276962748, occurence #1 [2025-04-24 20:42:54,347 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:42:54,347 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:42:54,347 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:42:54,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1949568600, now seen corresponding path program 1 times [2025-04-24 20:42:54,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:42:54,347 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990724575] [2025-04-24 20:42:54,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:42:54,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:42:54,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-24 20:42:54,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-24 20:42:54,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:42:54,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 20:42:54,358 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-24 20:42:54,360 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-24 20:42:54,367 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-24 20:42:54,367 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:42:54,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 20:42:54,390 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-24 20:42:54,390 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-24 20:42:54,390 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2025-04-24 20:42:54,390 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2025-04-24 20:42:54,390 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2025-04-24 20:42:54,391 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-24 20:42:54,392 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-04-24 20:42:54,392 INFO L320 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN (2/2) [2025-04-24 20:42:54,393 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-04-24 20:42:54,393 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-04-24 20:42:54,467 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-24 20:42:54,470 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 20:42:54,513 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 20:42:54,513 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == runThread2of2ForFork0 ======== [2025-04-24 20:42:54,514 INFO L340 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@79ad9aa2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 20:42:54,514 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-24 20:42:56,036 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 20:42:56,036 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:42:56,036 INFO L139 ounterexampleChecker]: Examining path program with hash -723282792, occurence #1 [2025-04-24 20:42:56,036 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:42:56,036 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:42:56,036 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:42:56,037 INFO L85 PathProgramCache]: Analyzing trace with hash 94793403, now seen corresponding path program 1 times [2025-04-24 20:42:56,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:42:56,037 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456545567] [2025-04-24 20:42:56,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:42:56,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:42:56,047 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-04-24 20:42:56,052 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-04-24 20:42:56,052 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:42:56,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:42:56,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:42:56,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:42:56,083 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456545567] [2025-04-24 20:42:56,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456545567] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:42:56,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:42:56,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 20:42:56,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073379601] [2025-04-24 20:42:56,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:42:56,084 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-24 20:42:56,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:42:56,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-24 20:42:56,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-24 20:42:56,084 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:56,084 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:42:56,085 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:42:56,085 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:56,302 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:56,303 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-24 20:42:56,303 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 20:42:56,303 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:42:56,303 INFO L139 ounterexampleChecker]: Examining path program with hash -2093709143, occurence #1 [2025-04-24 20:42:56,303 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:42:56,303 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:42:56,303 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:42:56,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1504797103, now seen corresponding path program 1 times [2025-04-24 20:42:56,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:42:56,304 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006511753] [2025-04-24 20:42:56,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:42:56,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:42:56,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-04-24 20:42:56,319 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-04-24 20:42:56,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:42:56,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:42:56,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:42:56,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:42:56,367 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006511753] [2025-04-24 20:42:56,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006511753] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:42:56,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:42:56,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 20:42:56,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146827630] [2025-04-24 20:42:56,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:42:56,367 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 20:42:56,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:42:56,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 20:42:56,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 20:42:56,368 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:56,368 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:42:56,368 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:42:56,368 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:56,368 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:56,784 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:56,785 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:56,785 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-24 20:42:56,785 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 20:42:56,785 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:42:56,786 INFO L139 ounterexampleChecker]: Examining path program with hash 651010731, occurence #1 [2025-04-24 20:42:56,786 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:42:56,786 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:42:56,786 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:42:56,786 INFO L85 PathProgramCache]: Analyzing trace with hash 894393484, now seen corresponding path program 2 times [2025-04-24 20:42:56,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:42:56,786 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949917662] [2025-04-24 20:42:56,787 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 20:42:56,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:42:56,813 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 429 statements into 2 equivalence classes. [2025-04-24 20:42:56,816 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 159 of 429 statements. [2025-04-24 20:42:56,817 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-24 20:42:56,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:42:56,877 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-04-24 20:42:56,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:42:56,877 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949917662] [2025-04-24 20:42:56,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949917662] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:42:56,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:42:56,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 20:42:56,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647765787] [2025-04-24 20:42:56,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:42:56,877 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 20:42:56,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:42:56,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 20:42:56,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 20:42:56,878 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:56,878 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:42:56,878 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:42:56,878 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:56,878 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:56,878 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:57,011 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:57,011 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:57,011 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:57,012 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-04-24 20:42:57,012 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 20:42:57,012 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:42:57,012 INFO L139 ounterexampleChecker]: Examining path program with hash -805664076, occurence #1 [2025-04-24 20:42:57,012 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:42:57,012 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:42:57,012 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:42:57,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1084074634, now seen corresponding path program 1 times [2025-04-24 20:42:57,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:42:57,013 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871698418] [2025-04-24 20:42:57,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:42:57,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:42:57,025 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-04-24 20:42:57,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-04-24 20:42:57,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:42:57,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:42:57,092 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 20:42:57,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:42:57,093 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871698418] [2025-04-24 20:42:57,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871698418] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:42:57,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:42:57,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 20:42:57,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66710154] [2025-04-24 20:42:57,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:42:57,093 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 20:42:57,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:42:57,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 20:42:57,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 20:42:57,094 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:57,094 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:42:57,094 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:42:57,094 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:57,094 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:57,094 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:57,094 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:58,002 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:58,003 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:58,003 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:58,003 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:58,003 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-04-24 20:42:58,003 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 20:42:58,003 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:42:58,004 INFO L139 ounterexampleChecker]: Examining path program with hash 1516021923, occurence #1 [2025-04-24 20:42:58,004 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:42:58,004 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:42:58,005 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:42:58,005 INFO L85 PathProgramCache]: Analyzing trace with hash -860891979, now seen corresponding path program 1 times [2025-04-24 20:42:58,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:42:58,005 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346068579] [2025-04-24 20:42:58,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:42:58,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:42:58,062 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 748 statements into 1 equivalence classes. [2025-04-24 20:42:58,074 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 748 of 748 statements. [2025-04-24 20:42:58,074 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:42:58,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:42:58,436 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2025-04-24 20:42:58,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:42:58,436 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346068579] [2025-04-24 20:42:58,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346068579] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:42:58,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:42:58,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 20:42:58,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052149261] [2025-04-24 20:42:58,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:42:58,437 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 20:42:58,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:42:58,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 20:42:58,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 20:42:58,437 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:58,437 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:42:58,437 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:42:58,437 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:58,437 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:58,437 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:58,437 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:58,437 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:58,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:58,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:58,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:58,623 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:58,623 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:58,623 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-04-24 20:42:58,623 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 20:42:58,623 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:42:58,624 INFO L139 ounterexampleChecker]: Examining path program with hash -661072536, occurence #1 [2025-04-24 20:42:58,624 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:42:58,625 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:42:58,625 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:42:58,625 INFO L85 PathProgramCache]: Analyzing trace with hash 623114582, now seen corresponding path program 1 times [2025-04-24 20:42:58,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:42:58,625 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483982997] [2025-04-24 20:42:58,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:42:58,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:42:58,641 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-04-24 20:42:58,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-04-24 20:42:58,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:42:58,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:42:58,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 20:42:58,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:42:58,803 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483982997] [2025-04-24 20:42:58,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483982997] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:42:58,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:42:58,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-24 20:42:58,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291964949] [2025-04-24 20:42:58,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:42:58,803 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-24 20:42:58,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:42:58,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-24 20:42:58,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-04-24 20:42:58,804 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:58,804 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:42:58,804 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:42:58,805 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:42:58,805 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:58,805 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:58,805 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:58,805 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:42:58,805 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:00,264 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:00,264 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:00,264 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:00,264 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:00,264 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:00,264 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:00,264 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-04-24 20:43:00,264 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 20:43:00,264 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:43:00,265 INFO L139 ounterexampleChecker]: Examining path program with hash 1819704234, occurence #1 [2025-04-24 20:43:00,265 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:43:00,265 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:43:00,265 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:43:00,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1667495888, now seen corresponding path program 1 times [2025-04-24 20:43:00,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:43:00,266 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076527366] [2025-04-24 20:43:00,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:43:00,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:43:00,320 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 513 statements into 1 equivalence classes. [2025-04-24 20:43:00,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 513 of 513 statements. [2025-04-24 20:43:00,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:43:00,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:43:00,979 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-04-24 20:43:00,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:43:00,980 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076527366] [2025-04-24 20:43:00,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076527366] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:43:00,981 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778612619] [2025-04-24 20:43:00,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:43:00,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:43:00,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:43:00,983 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 20:43:00,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-24 20:43:01,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 513 statements into 1 equivalence classes. [2025-04-24 20:43:01,642 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 513 of 513 statements. [2025-04-24 20:43:01,642 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:43:01,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:43:01,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 4031 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-24 20:43:01,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:43:01,818 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-04-24 20:43:01,818 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 20:43:01,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778612619] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:43:01,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-24 20:43:01,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2025-04-24 20:43:01,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16126306] [2025-04-24 20:43:01,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:43:01,819 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-24 20:43:01,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:43:01,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-24 20:43:01,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-04-24 20:43:01,819 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:01,820 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:43:01,821 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.4) internal successors, (247), 5 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:43:01,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:01,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:01,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:01,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:01,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:01,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:01,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:02,148 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:02,149 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:02,149 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:02,149 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:02,149 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:02,149 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:02,149 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:02,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-24 20:43:02,349 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-04-24 20:43:02,350 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 20:43:02,350 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:43:02,351 INFO L139 ounterexampleChecker]: Examining path program with hash -939381567, occurence #1 [2025-04-24 20:43:02,351 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:43:02,351 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:43:02,351 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:43:02,351 INFO L85 PathProgramCache]: Analyzing trace with hash 671006079, now seen corresponding path program 1 times [2025-04-24 20:43:02,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:43:02,352 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097229705] [2025-04-24 20:43:02,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:43:02,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:43:02,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 196 statements into 1 equivalence classes. [2025-04-24 20:43:02,451 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 196 of 196 statements. [2025-04-24 20:43:02,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:43:02,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:43:02,710 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 20:43:02,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:43:02,711 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097229705] [2025-04-24 20:43:02,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097229705] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:43:02,711 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76005145] [2025-04-24 20:43:02,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:43:02,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:43:02,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:43:02,714 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 20:43:02,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-24 20:43:02,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 196 statements into 1 equivalence classes. [2025-04-24 20:43:03,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 196 of 196 statements. [2025-04-24 20:43:03,062 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:43:03,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:43:03,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 1441 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-24 20:43:03,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:43:03,185 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 20:43:03,185 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 20:43:03,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76005145] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:43:03,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-24 20:43:03,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2025-04-24 20:43:03,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385919061] [2025-04-24 20:43:03,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:43:03,187 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-24 20:43:03,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:43:03,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-24 20:43:03,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-04-24 20:43:03,187 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:03,187 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:43:03,187 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:43:03,187 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:03,187 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:03,187 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:03,187 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:03,187 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:03,187 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:03,188 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:03,188 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:10,486 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:10,486 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:10,486 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:10,486 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:10,486 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:10,486 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:10,486 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:10,487 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:10,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-04-24 20:43:10,687 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-04-24 20:43:10,688 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 20:43:10,688 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:43:10,688 INFO L139 ounterexampleChecker]: Examining path program with hash 1922553183, occurence #1 [2025-04-24 20:43:10,688 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:43:10,688 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:43:10,689 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:43:10,689 INFO L85 PathProgramCache]: Analyzing trace with hash 550091278, now seen corresponding path program 2 times [2025-04-24 20:43:10,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:43:10,690 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438275111] [2025-04-24 20:43:10,690 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 20:43:10,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:43:10,713 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 175 statements into 2 equivalence classes. [2025-04-24 20:43:10,729 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 101 of 175 statements. [2025-04-24 20:43:10,729 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-24 20:43:10,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:43:10,838 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-04-24 20:43:10,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:43:10,839 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438275111] [2025-04-24 20:43:10,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438275111] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:43:10,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:43:10,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-24 20:43:10,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174689845] [2025-04-24 20:43:10,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:43:10,839 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-24 20:43:10,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:43:10,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-24 20:43:10,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-24 20:43:10,841 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:10,841 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:43:10,841 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:43:10,841 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:10,841 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:10,841 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:10,841 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:10,841 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:10,841 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:10,841 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:10,842 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:10,842 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:18,572 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:18,572 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:18,572 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:18,572 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:18,572 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:18,572 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:18,572 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:18,572 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:18,573 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:18,573 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-04-24 20:43:18,573 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 20:43:18,573 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:43:18,574 INFO L139 ounterexampleChecker]: Examining path program with hash 1543746455, occurence #1 [2025-04-24 20:43:18,574 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:43:18,574 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:43:18,574 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:43:18,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1721956536, now seen corresponding path program 1 times [2025-04-24 20:43:18,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:43:18,575 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037418878] [2025-04-24 20:43:18,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:43:18,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:43:18,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-04-24 20:43:18,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-04-24 20:43:18,607 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:43:18,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:43:18,804 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:43:18,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:43:18,805 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037418878] [2025-04-24 20:43:18,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037418878] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:43:18,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:43:18,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-24 20:43:18,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38041234] [2025-04-24 20:43:18,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:43:18,806 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-24 20:43:18,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:43:18,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-24 20:43:18,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-04-24 20:43:18,807 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:18,807 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:43:18,807 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:43:18,807 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:18,807 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:18,807 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:18,807 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:18,807 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:18,807 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:18,807 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:18,807 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:18,807 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:18,808 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:19,132 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:19,133 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:19,133 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:19,133 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:19,133 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:19,133 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:19,133 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:19,133 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:19,133 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:19,133 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:43:19,133 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-04-24 20:43:19,133 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 20:43:19,134 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:43:19,134 INFO L139 ounterexampleChecker]: Examining path program with hash 717150821, occurence #1 [2025-04-24 20:43:19,134 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:43:19,134 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:43:19,134 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:43:19,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1942586560, now seen corresponding path program 3 times [2025-04-24 20:43:19,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:43:19,134 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368545958] [2025-04-24 20:43:19,134 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 20:43:19,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:43:19,153 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 122 statements into 2 equivalence classes. [2025-04-24 20:43:19,166 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 114 of 122 statements. [2025-04-24 20:43:19,166 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-24 20:43:19,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:43:19,380 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 20:43:19,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:43:19,381 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368545958] [2025-04-24 20:43:19,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368545958] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:43:19,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:43:19,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-24 20:43:19,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103911048] [2025-04-24 20:43:19,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:43:19,381 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-24 20:43:19,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:43:19,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-24 20:43:19,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-04-24 20:43:19,382 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:19,383 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:43:19,383 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:43:19,383 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:19,383 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:19,383 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:19,383 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:19,383 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:19,383 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:19,383 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:19,383 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:19,383 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:19,383 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:43:19,383 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:21,658 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:21,658 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:21,658 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:21,658 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:21,658 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:21,658 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:21,658 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:21,658 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:21,658 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:21,658 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:43:21,662 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:43:21,663 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-04-24 20:43:21,663 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 20:43:21,663 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:43:21,663 INFO L139 ounterexampleChecker]: Examining path program with hash -953997668, occurence #1 [2025-04-24 20:43:21,663 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:43:21,663 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:43:21,663 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:43:21,663 INFO L85 PathProgramCache]: Analyzing trace with hash -2038653572, now seen corresponding path program 4 times [2025-04-24 20:43:21,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:43:21,664 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119531187] [2025-04-24 20:43:21,664 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 20:43:21,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:43:21,680 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 130 statements into 2 equivalence classes. [2025-04-24 20:43:21,695 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 130 of 130 statements. [2025-04-24 20:43:21,696 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 20:43:21,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:43:21,901 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 20:43:21,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:43:21,902 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119531187] [2025-04-24 20:43:21,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119531187] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:43:21,902 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268223434] [2025-04-24 20:43:21,902 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 20:43:21,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:43:21,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:43:21,907 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 20:43:21,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-24 20:43:22,206 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 130 statements into 2 equivalence classes. [2025-04-24 20:43:23,936 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 130 of 130 statements. [2025-04-24 20:43:23,936 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 20:43:23,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:43:23,942 INFO L256 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-24 20:43:23,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:43:24,054 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 20:43:24,054 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:43:24,158 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 20:43:24,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268223434] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:43:24,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:43:24,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 12 [2025-04-24 20:43:24,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149139038] [2025-04-24 20:43:24,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:43:24,159 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-04-24 20:43:24,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:43:24,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-04-24 20:43:24,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2025-04-24 20:43:24,160 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:24,160 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:43:24,160 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:43:24,160 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:24,160 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:24,160 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:24,160 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:24,160 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:24,160 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:24,160 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:24,160 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:24,160 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:24,160 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:43:24,160 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:43:24,160 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:27,733 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:27,734 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:27,734 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:27,734 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:27,734 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:27,734 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:27,734 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:27,734 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:27,734 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:27,734 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:43:27,734 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:43:27,734 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 20:43:27,745 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-04-24 20:43:27,935 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:43:27,935 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 20:43:27,935 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:43:27,936 INFO L139 ounterexampleChecker]: Examining path program with hash -953997668, occurence #2 [2025-04-24 20:43:27,936 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:43:27,936 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 20:43:27,937 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 20:43:27,937 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-24 20:43:27,937 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-04-24 20:43:27,937 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:43:27,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-24 20:43:27,937 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:43:27,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2025-04-24 20:43:27,937 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-04-24 20:43:27,937 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2025-04-24 20:43:27,937 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-04-24 20:43:27,937 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2025-04-24 20:43:27,937 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2025-04-24 20:43:27,937 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2025-04-24 20:43:27,937 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 42 [2025-04-24 20:43:27,937 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2025-04-24 20:43:27,937 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 72 [2025-04-24 20:43:27,937 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 86 [2025-04-24 20:43:27,937 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2025-04-24 20:43:27,937 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 94 [2025-04-24 20:43:27,937 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 95 [2025-04-24 20:43:27,937 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,938 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 108 [2025-04-24 20:43:27,938 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,938 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 109 [2025-04-24 20:43:27,938 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,938 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2025-04-24 20:43:27,938 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,938 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 122 [2025-04-24 20:43:27,938 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,938 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 123 [2025-04-24 20:43:27,938 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,938 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2025-04-24 20:43:27,938 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,938 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 125 [2025-04-24 20:43:27,938 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,938 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 130 [2025-04-24 20:43:27,938 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,938 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2025-04-24 20:43:27,938 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,938 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 140 [2025-04-24 20:43:27,938 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:43:27,938 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:43:27,938 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:43:27,938 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:43:27,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1825837603, now seen corresponding path program 5 times [2025-04-24 20:43:27,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:43:27,939 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508417455] [2025-04-24 20:43:27,939 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 20:43:27,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:43:27,958 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 144 statements into 3 equivalence classes. [2025-04-24 20:43:28,025 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 144 of 144 statements. [2025-04-24 20:43:28,026 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-04-24 20:43:28,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:43:30,222 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:43:30,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:43:30,223 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508417455] [2025-04-24 20:43:30,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508417455] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:43:30,223 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740462824] [2025-04-24 20:43:30,223 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 20:43:30,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:43:30,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:43:30,225 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 20:43:30,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-24 20:43:30,446 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 144 statements into 3 equivalence classes. [2025-04-24 20:43:30,607 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 144 of 144 statements. [2025-04-24 20:43:30,608 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-04-24 20:43:30,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:43:30,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 1130 conjuncts, 39 conjuncts are in the unsatisfiable core [2025-04-24 20:43:30,619 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:43:30,892 INFO L354 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 7 treesize of output 3 [2025-04-24 20:43:30,914 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-04-24 20:43:30,915 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:43:30,987 INFO L354 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 8 treesize of output 4 [2025-04-24 20:43:31,015 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-04-24 20:43:31,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740462824] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:43:31,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:43:31,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 7, 7] total 28 [2025-04-24 20:43:31,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163793009] [2025-04-24 20:43:31,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:43:31,016 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-04-24 20:43:31,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:43:31,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-04-24 20:43:31,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2025-04-24 20:43:31,017 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:31,017 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:43:31,017 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 11.392857142857142) internal successors, (319), 28 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:43:31,017 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:43:31,017 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:31,017 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:31,017 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:31,017 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:43:31,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:31,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:31,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:31,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:43:31,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:43:31,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 20:43:31,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-24 20:43:31,018 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.