./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/libvsync/rec_mcslock.i --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ebd41074 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/libvsync/rec_mcslock.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-23 21:35:01,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 21:35:02,041 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-23 21:35:02,048 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 21:35:02,048 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 21:35:02,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 21:35:02,080 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 21:35:02,080 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 21:35:02,080 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 21:35:02,080 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 21:35:02,081 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 21:35:02,081 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 21:35:02,081 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 21:35:02,081 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 21:35:02,081 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 21:35:02,083 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 21:35:02,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-23 21:35:02,083 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 21:35:02,083 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 21:35:02,083 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 21:35:02,083 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 21:35:02,083 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 21:35:02,083 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 21:35:02,083 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 21:35:02,084 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 21:35:02,084 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 21:35:02,084 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 21:35:02,084 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 21:35:02,084 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 21:35:02,084 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 21:35:02,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 21:35:02,084 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 21:35:02,084 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 21:35:02,084 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 21:35:02,084 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 21:35:02,084 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 21:35:02,084 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-23 21:35:02,084 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 21:35:02,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-23 21:35:02,084 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 21:35:02,084 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 21:35:02,085 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 21:35:02,085 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 21:35:02,085 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-jdk21/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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT [2025-01-23 21:35:02,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 21:35:02,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 21:35:02,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 21:35:02,385 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 21:35:02,385 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 21:35:02,386 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/libvsync/rec_mcslock.i [2025-01-23 21:35:02,938 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/19bf0da4c/1acc130a0fa044f3a06c2aaea3aa2671/FLAGec865d5be [2025-01-23 21:35:04,758 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 21:35:04,758 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/libvsync/rec_mcslock.i [2025-01-23 21:35:04,808 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/19bf0da4c/1acc130a0fa044f3a06c2aaea3aa2671/FLAGec865d5be [2025-01-23 21:35:04,850 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/19bf0da4c/1acc130a0fa044f3a06c2aaea3aa2671 [2025-01-23 21:35:04,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 21:35:04,853 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 21:35:04,855 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 21:35:04,855 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 21:35:04,859 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 21:35:04,859 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 09:35:04" (1/1) ... [2025-01-23 21:35:04,860 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4711c299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 09:35:04, skipping insertion in model container [2025-01-23 21:35:04,860 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 09:35:04" (1/1) ... [2025-01-23 21:35:04,925 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 21:35:06,275 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/libvsync/rec_mcslock.i[173235,173248] [2025-01-23 21:35:06,284 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/libvsync/rec_mcslock.i[173609,173622] [2025-01-23 21:35:06,448 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/libvsync/rec_mcslock.i[196613,196626] [2025-01-23 21:35:06,448 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/libvsync/rec_mcslock.i[196680,196693] [2025-01-23 21:35:06,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 21:35:06,475 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 21:35:06,667 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2025-01-23 21:35:06,668 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2025-01-23 21:35:06,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2025-01-23 21:35:06,670 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2025-01-23 21:35:06,670 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2025-01-23 21:35:06,671 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2025-01-23 21:35:06,672 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2025-01-23 21:35:06,672 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2025-01-23 21:35:06,672 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2025-01-23 21:35:06,674 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2025-01-23 21:35:06,674 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2025-01-23 21:35:06,674 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2025-01-23 21:35:06,675 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2025-01-23 21:35:06,675 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2025-01-23 21:35:06,675 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2025-01-23 21:35:06,675 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2025-01-23 21:35:06,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2025-01-23 21:35:06,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2025-01-23 21:35:06,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2025-01-23 21:35:06,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2025-01-23 21:35:06,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2025-01-23 21:35:06,678 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2025-01-23 21:35:06,678 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2025-01-23 21:35:06,678 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2025-01-23 21:35:06,678 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2025-01-23 21:35:06,678 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2025-01-23 21:35:06,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2025-01-23 21:35:06,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2025-01-23 21:35:06,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2025-01-23 21:35:06,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2025-01-23 21:35:06,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2025-01-23 21:35:06,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2025-01-23 21:35:06,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2025-01-23 21:35:06,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2025-01-23 21:35:06,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2025-01-23 21:35:06,683 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2025-01-23 21:35:06,683 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2025-01-23 21:35:06,684 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2025-01-23 21:35:06,684 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2025-01-23 21:35:06,684 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2025-01-23 21:35:06,685 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2025-01-23 21:35:06,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2025-01-23 21:35:06,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2025-01-23 21:35:06,687 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2025-01-23 21:35:06,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2025-01-23 21:35:06,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2025-01-23 21:35:06,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2025-01-23 21:35:06,690 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2025-01-23 21:35:06,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2025-01-23 21:35:06,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2025-01-23 21:35:06,692 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2025-01-23 21:35:06,692 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2025-01-23 21:35:06,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2025-01-23 21:35:06,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2025-01-23 21:35:06,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2025-01-23 21:35:06,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2025-01-23 21:35:06,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2025-01-23 21:35:06,697 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2025-01-23 21:35:06,697 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2025-01-23 21:35:06,697 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2025-01-23 21:35:06,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2025-01-23 21:35:06,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2025-01-23 21:35:06,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2025-01-23 21:35:06,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2025-01-23 21:35:06,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2025-01-23 21:35:06,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2025-01-23 21:35:06,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2025-01-23 21:35:06,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2025-01-23 21:35:06,702 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2025-01-23 21:35:06,703 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2025-01-23 21:35:06,703 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2025-01-23 21:35:06,704 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2025-01-23 21:35:06,704 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2025-01-23 21:35:06,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2025-01-23 21:35:06,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2025-01-23 21:35:06,706 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2025-01-23 21:35:06,706 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2025-01-23 21:35:06,707 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2025-01-23 21:35:06,707 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2025-01-23 21:35:06,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2025-01-23 21:35:06,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2025-01-23 21:35:06,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2025-01-23 21:35:06,709 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2025-01-23 21:35:06,709 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2025-01-23 21:35:06,709 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2025-01-23 21:35:06,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2025-01-23 21:35:06,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2025-01-23 21:35:06,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2025-01-23 21:35:06,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2025-01-23 21:35:06,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2025-01-23 21:35:06,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2025-01-23 21:35:06,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2025-01-23 21:35:06,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2025-01-23 21:35:06,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2025-01-23 21:35:06,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2025-01-23 21:35:06,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2025-01-23 21:35:06,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2025-01-23 21:35:06,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2025-01-23 21:35:06,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2025-01-23 21:35:06,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2025-01-23 21:35:06,804 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/libvsync/rec_mcslock.i[173235,173248] [2025-01-23 21:35:06,805 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/libvsync/rec_mcslock.i[173609,173622] [2025-01-23 21:35:06,817 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/libvsync/rec_mcslock.i[196613,196626] [2025-01-23 21:35:06,817 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/libvsync/rec_mcslock.i[196680,196693] [2025-01-23 21:35:06,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 21:35:07,008 INFO L204 MainTranslator]: Completed translation [2025-01-23 21:35:07,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 09:35:07 WrapperNode [2025-01-23 21:35:07,009 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 21:35:07,010 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 21:35:07,010 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 21:35:07,010 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 21:35:07,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 09:35:07" (1/1) ... [2025-01-23 21:35:07,081 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 09:35:07" (1/1) ... [2025-01-23 21:35:07,121 INFO L138 Inliner]: procedures = 924, calls = 951, calls flagged for inlining = 834, calls inlined = 53, statements flattened = 455 [2025-01-23 21:35:07,122 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 21:35:07,122 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 21:35:07,123 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 21:35:07,123 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 21:35:07,133 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 09:35:07" (1/1) ... [2025-01-23 21:35:07,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 09:35:07" (1/1) ... [2025-01-23 21:35:07,136 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 09:35:07" (1/1) ... [2025-01-23 21:35:07,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 09:35:07" (1/1) ... [2025-01-23 21:35:07,156 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 09:35:07" (1/1) ... [2025-01-23 21:35:07,158 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 09:35:07" (1/1) ... [2025-01-23 21:35:07,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 09:35:07" (1/1) ... [2025-01-23 21:35:07,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 09:35:07" (1/1) ... [2025-01-23 21:35:07,167 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 09:35:07" (1/1) ... [2025-01-23 21:35:07,174 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 21:35:07,175 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 21:35:07,175 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 21:35:07,175 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 21:35:07,176 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 09:35:07" (1/1) ... [2025-01-23 21:35:07,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 21:35:07,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 21:35:07,213 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-23 21:35:07,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-23 21:35:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-23 21:35:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 21:35:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-01-23 21:35:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 21:35:07,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 21:35:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure run [2025-01-23 21:35:07,240 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2025-01-23 21:35:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-23 21:35:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-01-23 21:35:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-23 21:35:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-23 21:35:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-01-23 21:35:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-23 21:35:07,242 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-23 21:35:07,425 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 21:35:07,426 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 21:35:08,033 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 21:35:08,033 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 21:35:08,355 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-23 21:35:08,355 INFO L312 CfgBuilder]: Removed 34 assume(true) statements. [2025-01-23 21:35:08,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 09:35:08 BoogieIcfgContainer [2025-01-23 21:35:08,356 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-23 21:35:08,358 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-23 21:35:08,358 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-23 21:35:08,362 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-23 21:35:08,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 09:35:04" (1/3) ... [2025-01-23 21:35:08,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10f54449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 09:35:08, skipping insertion in model container [2025-01-23 21:35:08,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 09:35:07" (2/3) ... [2025-01-23 21:35:08,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10f54449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 09:35:08, skipping insertion in model container [2025-01-23 21:35:08,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 09:35:08" (3/3) ... [2025-01-23 21:35:08,364 INFO L128 eAbstractionObserver]: Analyzing ICFG rec_mcslock.i [2025-01-23 21:35:08,377 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-23 21:35:08,378 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rec_mcslock.i that has 2 procedures, 127 locations, 1 initial locations, 39 loop locations, and 3 error locations. [2025-01-23 21:35:08,378 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-23 21:35:08,514 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-01-23 21:35:08,558 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 21:35:08,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-23 21:35:08,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 21:35:08,563 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-23 21:35:08,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-23 21:35:08,689 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 21:35:08,703 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == runThread1of1ForFork0 ======== [2025-01-23 21:35:08,710 INFO L333 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;@3819889f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 21:35:08,711 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-23 21:35:09,177 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 21:35:09,177 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 21:35:09,177 INFO L139 ounterexampleChecker]: Examining path program with hash 851476916, occurence #1 [2025-01-23 21:35:09,178 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 21:35:09,178 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 21:35:09,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 21:35:09,183 INFO L85 PathProgramCache]: Analyzing trace with hash -305815618, now seen corresponding path program 1 times [2025-01-23 21:35:09,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 21:35:09,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668936365] [2025-01-23 21:35:09,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 21:35:09,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 21:35:09,272 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-01-23 21:35:09,290 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-01-23 21:35:09,292 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 21:35:09,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:09,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 21:35:09,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 21:35:09,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668936365] [2025-01-23 21:35:09,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668936365] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 21:35:09,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 21:35:09,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-23 21:35:09,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402391887] [2025-01-23 21:35:09,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 21:35:09,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-23 21:35:09,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 21:35:09,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-23 21:35:09,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-23 21:35:09,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:09,410 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 21:35:09,411 INFO L472 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) [2025-01-23 21:35:09,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:09,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:09,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-23 21:35:09,588 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 21:35:09,588 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 21:35:09,588 INFO L139 ounterexampleChecker]: Examining path program with hash 1602207210, occurence #1 [2025-01-23 21:35:09,588 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 21:35:09,588 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 21:35:09,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 21:35:09,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1740277457, now seen corresponding path program 1 times [2025-01-23 21:35:09,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 21:35:09,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287407150] [2025-01-23 21:35:09,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 21:35:09,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 21:35:09,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-01-23 21:35:09,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-01-23 21:35:09,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 21:35:09,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:09,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 21:35:09,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 21:35:09,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287407150] [2025-01-23 21:35:09,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287407150] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 21:35:09,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 21:35:09,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-23 21:35:09,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284250733] [2025-01-23 21:35:09,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 21:35:09,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-23 21:35:09,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 21:35:09,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-23 21:35:09,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-23 21:35:09,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:09,873 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 21:35:09,873 INFO L472 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) [2025-01-23 21:35:09,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:09,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:10,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:10,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 21:35:10,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-23 21:35:10,133 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 21:35:10,133 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 21:35:10,133 INFO L139 ounterexampleChecker]: Examining path program with hash 1236213922, occurence #1 [2025-01-23 21:35:10,133 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 21:35:10,134 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 21:35:10,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 21:35:10,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1830560410, now seen corresponding path program 1 times [2025-01-23 21:35:10,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 21:35:10,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942360687] [2025-01-23 21:35:10,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 21:35:10,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 21:35:10,153 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-23 21:35:10,183 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-23 21:35:10,186 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 21:35:10,186 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:10,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 21:35:10,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 21:35:10,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942360687] [2025-01-23 21:35:10,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942360687] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 21:35:10,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 21:35:10,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-23 21:35:10,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987296882] [2025-01-23 21:35:10,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 21:35:10,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-23 21:35:10,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 21:35:10,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-23 21:35:10,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-23 21:35:10,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:10,518 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 21:35:10,518 INFO L472 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) [2025-01-23 21:35:10,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:10,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 21:35:10,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:19,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:19,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 21:35:19,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 21:35:19,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location runErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-23 21:35:19,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-23 21:35:19,151 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-01-23 21:35:19,153 INFO L319 ceAbstractionStarter]: Result for error location runThread1of1ForFork0 was SAFE (1/2) [2025-01-23 21:35:19,159 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 21:35:19,162 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 21:35:19,163 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-23 21:35:19,163 INFO L333 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;@3819889f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 21:35:19,163 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-01-23 21:35:19,165 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 21:35:19,165 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 21:35:19,165 INFO L139 ounterexampleChecker]: Examining path program with hash 1783648759, occurence #1 [2025-01-23 21:35:19,165 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 21:35:19,165 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 21:35:19,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 21:35:19,165 INFO L85 PathProgramCache]: Analyzing trace with hash -600716342, now seen corresponding path program 1 times [2025-01-23 21:35:19,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 21:35:19,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705900038] [2025-01-23 21:35:19,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 21:35:19,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 21:35:19,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-23 21:35:19,173 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-23 21:35:19,174 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 21:35:19,174 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:19,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 21:35:19,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 21:35:19,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705900038] [2025-01-23 21:35:19,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705900038] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 21:35:19,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 21:35:19,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-23 21:35:19,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397361939] [2025-01-23 21:35:19,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 21:35:19,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-23 21:35:19,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 21:35:19,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-23 21:35:19,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-23 21:35:19,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:19,181 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 21:35:19,181 INFO L472 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) [2025-01-23 21:35:19,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:19,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-23 21:35:19,194 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 21:35:19,194 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 21:35:19,194 INFO L139 ounterexampleChecker]: Examining path program with hash -1149312047, occurence #1 [2025-01-23 21:35:19,194 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 21:35:19,194 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 21:35:19,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 21:35:19,195 INFO L85 PathProgramCache]: Analyzing trace with hash 2137021554, now seen corresponding path program 1 times [2025-01-23 21:35:19,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 21:35:19,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856514194] [2025-01-23 21:35:19,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 21:35:19,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 21:35:19,199 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-23 21:35:19,203 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-23 21:35:19,203 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 21:35:19,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:19,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 21:35:19,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 21:35:19,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856514194] [2025-01-23 21:35:19,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856514194] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 21:35:19,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 21:35:19,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 21:35:19,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223845513] [2025-01-23 21:35:19,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 21:35:19,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 21:35:19,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 21:35:19,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 21:35:19,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 21:35:19,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:19,226 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 21:35:19,227 INFO L472 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) [2025-01-23 21:35:19,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:19,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:19,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:19,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:19,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-23 21:35:19,457 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 21:35:19,457 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 21:35:19,457 INFO L139 ounterexampleChecker]: Examining path program with hash 950982557, occurence #1 [2025-01-23 21:35:19,457 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 21:35:19,457 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 21:35:19,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 21:35:19,457 INFO L85 PathProgramCache]: Analyzing trace with hash -2018767254, now seen corresponding path program 1 times [2025-01-23 21:35:19,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 21:35:19,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721558015] [2025-01-23 21:35:19,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 21:35:19,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 21:35:19,465 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-01-23 21:35:19,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-01-23 21:35:19,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 21:35:19,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:19,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 21:35:19,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 21:35:19,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721558015] [2025-01-23 21:35:19,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721558015] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 21:35:19,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 21:35:19,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-23 21:35:19,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925815955] [2025-01-23 21:35:19,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 21:35:19,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-23 21:35:19,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 21:35:19,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-23 21:35:19,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-23 21:35:19,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:19,529 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 21:35:19,530 INFO L472 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) [2025-01-23 21:35:19,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:19,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:19,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:19,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:19,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:19,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 21:35:19,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-23 21:35:19,545 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 21:35:19,545 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 21:35:19,545 INFO L139 ounterexampleChecker]: Examining path program with hash -1276962748, occurence #1 [2025-01-23 21:35:19,545 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 21:35:19,545 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 21:35:19,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 21:35:19,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1949568600, now seen corresponding path program 1 times [2025-01-23 21:35:19,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 21:35:19,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469720078] [2025-01-23 21:35:19,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 21:35:19,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 21:35:19,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-23 21:35:19,559 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-23 21:35:19,559 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 21:35:19,559 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 21:35:19,559 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-23 21:35:19,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-23 21:35:19,567 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-23 21:35:19,567 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 21:35:19,567 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 21:35:19,585 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-23 21:35:19,585 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-23 21:35:19,586 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2025-01-23 21:35:19,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2025-01-23 21:35:19,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2025-01-23 21:35:19,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-23 21:35:19,587 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-01-23 21:35:19,588 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN (2/2) [2025-01-23 21:35:19,589 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-23 21:35:19,589 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-01-23 21:35:19,680 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-23 21:35:19,684 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 21:35:19,780 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 21:35:19,781 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == runThread2of2ForFork0 ======== [2025-01-23 21:35:19,782 INFO L333 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;@3819889f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 21:35:19,782 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-23 21:35:21,617 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 21:35:21,618 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 21:35:21,618 INFO L139 ounterexampleChecker]: Examining path program with hash 1471011509, occurence #1 [2025-01-23 21:35:21,618 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 21:35:21,618 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 21:35:21,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 21:35:21,619 INFO L85 PathProgramCache]: Analyzing trace with hash 94793403, now seen corresponding path program 1 times [2025-01-23 21:35:21,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 21:35:21,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948447161] [2025-01-23 21:35:21,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 21:35:21,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 21:35:21,633 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-01-23 21:35:21,635 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-01-23 21:35:21,635 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 21:35:21,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:21,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 21:35:21,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 21:35:21,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948447161] [2025-01-23 21:35:21,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948447161] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 21:35:21,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 21:35:21,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-23 21:35:21,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667543499] [2025-01-23 21:35:21,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 21:35:21,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-23 21:35:21,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 21:35:21,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-23 21:35:21,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-23 21:35:21,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:21,667 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 21:35:21,667 INFO L472 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) [2025-01-23 21:35:21,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:21,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:21,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-23 21:35:21,961 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 21:35:21,961 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 21:35:21,961 INFO L139 ounterexampleChecker]: Examining path program with hash -1201471228, occurence #1 [2025-01-23 21:35:21,961 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 21:35:21,961 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 21:35:21,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 21:35:21,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1504797103, now seen corresponding path program 1 times [2025-01-23 21:35:21,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 21:35:21,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218426970] [2025-01-23 21:35:21,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 21:35:21,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 21:35:21,977 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-01-23 21:35:21,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-01-23 21:35:21,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 21:35:21,987 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:22,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 21:35:22,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 21:35:22,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218426970] [2025-01-23 21:35:22,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218426970] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 21:35:22,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 21:35:22,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 21:35:22,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302928029] [2025-01-23 21:35:22,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 21:35:22,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 21:35:22,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 21:35:22,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 21:35:22,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 21:35:22,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:22,071 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 21:35:22,072 INFO L472 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) [2025-01-23 21:35:22,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:22,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:22,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:22,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:22,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-23 21:35:22,565 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 21:35:22,565 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 21:35:22,565 INFO L139 ounterexampleChecker]: Examining path program with hash -406014394, occurence #1 [2025-01-23 21:35:22,565 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 21:35:22,565 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 21:35:22,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 21:35:22,566 INFO L85 PathProgramCache]: Analyzing trace with hash 894393484, now seen corresponding path program 2 times [2025-01-23 21:35:22,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 21:35:22,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299780909] [2025-01-23 21:35:22,566 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 21:35:22,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 21:35:22,605 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 429 statements into 2 equivalence classes. [2025-01-23 21:35:22,609 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 159 of 429 statements. [2025-01-23 21:35:22,609 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-23 21:35:22,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:22,710 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-23 21:35:22,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 21:35:22,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299780909] [2025-01-23 21:35:22,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299780909] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 21:35:22,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 21:35:22,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 21:35:22,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862268770] [2025-01-23 21:35:22,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 21:35:22,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 21:35:22,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 21:35:22,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 21:35:22,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 21:35:22,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:22,715 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 21:35:22,716 INFO L472 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) [2025-01-23 21:35:22,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:22,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:22,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:22,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-23 21:35:22,901 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 21:35:22,901 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 21:35:22,901 INFO L139 ounterexampleChecker]: Examining path program with hash 86573839, occurence #1 [2025-01-23 21:35:22,901 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 21:35:22,901 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 21:35:22,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 21:35:22,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1084074634, now seen corresponding path program 1 times [2025-01-23 21:35:22,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 21:35:22,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351649300] [2025-01-23 21:35:22,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 21:35:22,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 21:35:22,924 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-01-23 21:35:22,939 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-01-23 21:35:22,939 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 21:35:22,939 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:22,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-23 21:35:22,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 21:35:22,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351649300] [2025-01-23 21:35:22,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351649300] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 21:35:22,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 21:35:22,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 21:35:22,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594033645] [2025-01-23 21:35:22,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 21:35:22,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 21:35:22,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 21:35:22,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 21:35:22,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 21:35:22,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:22,995 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 21:35:22,995 INFO L472 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) [2025-01-23 21:35:22,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:22,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:22,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:22,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:24,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:24,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:24,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:24,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:24,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-23 21:35:24,110 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 21:35:24,110 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 21:35:24,111 INFO L139 ounterexampleChecker]: Examining path program with hash -1193962852, occurence #1 [2025-01-23 21:35:24,111 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 21:35:24,111 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 21:35:24,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 21:35:24,112 INFO L85 PathProgramCache]: Analyzing trace with hash -860891979, now seen corresponding path program 1 times [2025-01-23 21:35:24,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 21:35:24,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549356633] [2025-01-23 21:35:24,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 21:35:24,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 21:35:24,185 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 748 statements into 1 equivalence classes. [2025-01-23 21:35:24,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 748 of 748 statements. [2025-01-23 21:35:24,208 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 21:35:24,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:24,686 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2025-01-23 21:35:24,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 21:35:24,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549356633] [2025-01-23 21:35:24,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549356633] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 21:35:24,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 21:35:24,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 21:35:24,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926113085] [2025-01-23 21:35:24,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 21:35:24,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 21:35:24,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 21:35:24,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 21:35:24,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 21:35:24,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:24,688 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 21:35:24,688 INFO L472 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) [2025-01-23 21:35:24,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:24,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:24,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:24,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:24,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:24,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:24,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:24,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:24,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:24,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:24,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-23 21:35:24,914 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 21:35:24,914 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 21:35:24,914 INFO L139 ounterexampleChecker]: Examining path program with hash -263515141, occurence #1 [2025-01-23 21:35:24,914 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 21:35:24,914 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 21:35:24,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 21:35:24,915 INFO L85 PathProgramCache]: Analyzing trace with hash 623114582, now seen corresponding path program 1 times [2025-01-23 21:35:24,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 21:35:24,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644301098] [2025-01-23 21:35:24,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 21:35:24,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 21:35:24,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-01-23 21:35:24,953 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-01-23 21:35:24,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 21:35:24,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:25,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-23 21:35:25,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 21:35:25,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644301098] [2025-01-23 21:35:25,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644301098] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 21:35:25,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 21:35:25,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-23 21:35:25,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187248916] [2025-01-23 21:35:25,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 21:35:25,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-23 21:35:25,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 21:35:25,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-23 21:35:25,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-23 21:35:25,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:25,116 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 21:35:25,116 INFO L472 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) [2025-01-23 21:35:25,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:25,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:25,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:25,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:25,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:25,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:26,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:26,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:26,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:26,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:26,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:26,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:26,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-23 21:35:26,771 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 21:35:26,771 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 21:35:26,772 INFO L139 ounterexampleChecker]: Examining path program with hash 533033718, occurence #1 [2025-01-23 21:35:26,772 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 21:35:26,772 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 21:35:26,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 21:35:26,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1667495888, now seen corresponding path program 1 times [2025-01-23 21:35:26,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 21:35:26,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894893848] [2025-01-23 21:35:26,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 21:35:26,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 21:35:26,869 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 513 statements into 1 equivalence classes. [2025-01-23 21:35:26,980 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 513 of 513 statements. [2025-01-23 21:35:26,981 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 21:35:26,981 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:27,716 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-23 21:35:27,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 21:35:27,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894893848] [2025-01-23 21:35:27,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894893848] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 21:35:27,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939784113] [2025-01-23 21:35:27,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 21:35:27,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 21:35:27,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 21:35:27,732 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 21:35:27,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-23 21:35:28,157 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 513 statements into 1 equivalence classes. [2025-01-23 21:35:28,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 513 of 513 statements. [2025-01-23 21:35:28,544 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 21:35:28,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:28,558 INFO L256 TraceCheckSpWp]: Trace formula consists of 4031 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-23 21:35:28,581 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 21:35:28,773 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-23 21:35:28,777 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-23 21:35:28,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939784113] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 21:35:28,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-23 21:35:28,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2025-01-23 21:35:28,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263296758] [2025-01-23 21:35:28,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 21:35:28,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-23 21:35:28,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 21:35:28,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-23 21:35:28,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-01-23 21:35:28,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:28,779 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 21:35:28,779 INFO L472 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) [2025-01-23 21:35:28,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:28,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:28,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:28,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:28,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:28,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:28,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:29,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:29,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:29,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:29,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:29,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:29,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:29,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:29,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-23 21:35:29,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-01-23 21:35:29,344 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 21:35:29,344 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 21:35:29,345 INFO L139 ounterexampleChecker]: Examining path program with hash 1189958451, occurence #1 [2025-01-23 21:35:29,345 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 21:35:29,345 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 21:35:29,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 21:35:29,345 INFO L85 PathProgramCache]: Analyzing trace with hash 671006079, now seen corresponding path program 1 times [2025-01-23 21:35:29,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 21:35:29,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213326867] [2025-01-23 21:35:29,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 21:35:29,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 21:35:29,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 196 statements into 1 equivalence classes. [2025-01-23 21:35:29,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 196 of 196 statements. [2025-01-23 21:35:29,401 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 21:35:29,401 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:29,632 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-23 21:35:29,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 21:35:29,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213326867] [2025-01-23 21:35:29,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213326867] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 21:35:29,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619452929] [2025-01-23 21:35:29,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 21:35:29,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 21:35:29,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 21:35:29,635 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 21:35:29,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-23 21:35:29,953 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 196 statements into 1 equivalence classes. [2025-01-23 21:35:30,109 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 196 of 196 statements. [2025-01-23 21:35:30,109 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 21:35:30,109 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:30,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 1441 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-23 21:35:30,117 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 21:35:30,271 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-23 21:35:30,271 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-23 21:35:30,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619452929] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 21:35:30,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-23 21:35:30,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2025-01-23 21:35:30,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939690671] [2025-01-23 21:35:30,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 21:35:30,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-23 21:35:30,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 21:35:30,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-23 21:35:30,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-01-23 21:35:30,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:30,272 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 21:35:30,272 INFO L472 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) [2025-01-23 21:35:30,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:30,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:30,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:30,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:30,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:30,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:30,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:30,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:38,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:38,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:38,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:38,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:38,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:38,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:38,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:38,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:38,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-23 21:35:38,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 21:35:38,854 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 21:35:38,854 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 21:35:38,855 INFO L139 ounterexampleChecker]: Examining path program with hash -1547699232, occurence #1 [2025-01-23 21:35:38,855 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 21:35:38,855 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 21:35:38,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 21:35:38,855 INFO L85 PathProgramCache]: Analyzing trace with hash 550091278, now seen corresponding path program 2 times [2025-01-23 21:35:38,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 21:35:38,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793310058] [2025-01-23 21:35:38,855 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 21:35:38,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 21:35:38,883 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 175 statements into 2 equivalence classes. [2025-01-23 21:35:38,899 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 101 of 175 statements. [2025-01-23 21:35:38,900 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-23 21:35:38,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:39,011 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-01-23 21:35:39,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 21:35:39,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793310058] [2025-01-23 21:35:39,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793310058] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 21:35:39,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 21:35:39,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-23 21:35:39,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241927499] [2025-01-23 21:35:39,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 21:35:39,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-23 21:35:39,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 21:35:39,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-23 21:35:39,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-23 21:35:39,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:39,014 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 21:35:39,014 INFO L472 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) [2025-01-23 21:35:39,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:39,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:39,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:39,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:39,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:39,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:39,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:39,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:39,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:47,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:47,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:47,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:47,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:47,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:47,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:47,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:47,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:47,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:47,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-23 21:35:47,320 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 21:35:47,320 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 21:35:47,320 INFO L139 ounterexampleChecker]: Examining path program with hash -1926505960, occurence #1 [2025-01-23 21:35:47,320 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 21:35:47,320 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 21:35:47,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 21:35:47,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1721956536, now seen corresponding path program 1 times [2025-01-23 21:35:47,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 21:35:47,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805393195] [2025-01-23 21:35:47,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 21:35:47,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 21:35:47,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-01-23 21:35:47,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-01-23 21:35:47,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 21:35:47,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:47,677 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 21:35:47,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 21:35:47,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805393195] [2025-01-23 21:35:47,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805393195] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 21:35:47,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 21:35:47,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-23 21:35:47,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124490966] [2025-01-23 21:35:47,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 21:35:47,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-23 21:35:47,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 21:35:47,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-23 21:35:47,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-23 21:35:47,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:47,679 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 21:35:47,680 INFO L472 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) [2025-01-23 21:35:47,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:47,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:47,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:47,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:47,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:47,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:47,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:47,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:47,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:47,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:48,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:48,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:48,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:48,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:48,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:48,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:48,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:48,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:48,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:48,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-23 21:35:48,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-01-23 21:35:48,037 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 21:35:48,037 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 21:35:48,038 INFO L139 ounterexampleChecker]: Examining path program with hash -1448476457, occurence #1 [2025-01-23 21:35:48,038 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 21:35:48,038 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 21:35:48,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 21:35:48,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1942586560, now seen corresponding path program 3 times [2025-01-23 21:35:48,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 21:35:48,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746420744] [2025-01-23 21:35:48,038 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 21:35:48,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 21:35:48,061 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 122 statements into 2 equivalence classes. [2025-01-23 21:35:48,075 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 114 of 122 statements. [2025-01-23 21:35:48,076 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-23 21:35:48,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:48,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-23 21:35:48,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 21:35:48,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746420744] [2025-01-23 21:35:48,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746420744] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 21:35:48,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 21:35:48,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-23 21:35:48,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349167471] [2025-01-23 21:35:48,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 21:35:48,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-23 21:35:48,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 21:35:48,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-23 21:35:48,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-23 21:35:48,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:48,296 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 21:35:48,296 INFO L472 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) [2025-01-23 21:35:48,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:48,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:48,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:48,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:48,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:48,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:48,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:48,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:48,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:48,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-23 21:35:48,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:50,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:50,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:50,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:50,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:50,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:50,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:50,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:50,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:50,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:50,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-23 21:35:50,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-23 21:35:50,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-01-23 21:35:50,633 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 21:35:50,633 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 21:35:50,633 INFO L139 ounterexampleChecker]: Examining path program with hash 350627469, occurence #1 [2025-01-23 21:35:50,633 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 21:35:50,633 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 21:35:50,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 21:35:50,633 INFO L85 PathProgramCache]: Analyzing trace with hash -2038653572, now seen corresponding path program 4 times [2025-01-23 21:35:50,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 21:35:50,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195909725] [2025-01-23 21:35:50,633 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 21:35:50,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 21:35:50,650 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 130 statements into 2 equivalence classes. [2025-01-23 21:35:50,669 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 130 of 130 statements. [2025-01-23 21:35:50,669 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 21:35:50,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:50,873 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-23 21:35:50,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 21:35:50,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195909725] [2025-01-23 21:35:50,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195909725] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 21:35:50,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180043107] [2025-01-23 21:35:50,874 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 21:35:50,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 21:35:50,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 21:35:50,876 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 21:35:50,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-23 21:35:51,145 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 130 statements into 2 equivalence classes. [2025-01-23 21:35:52,791 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 130 of 130 statements. [2025-01-23 21:35:52,791 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 21:35:52,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:52,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-23 21:35:52,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 21:35:52,926 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-23 21:35:52,926 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 21:35:53,056 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-23 21:35:53,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180043107] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 21:35:53,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 21:35:53,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 12 [2025-01-23 21:35:53,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740726140] [2025-01-23 21:35:53,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 21:35:53,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-23 21:35:53,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 21:35:53,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-23 21:35:53,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2025-01-23 21:35:53,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:53,058 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 21:35:53,058 INFO L472 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) [2025-01-23 21:35:53,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:53,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:53,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:53,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:53,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:53,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:53,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:53,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:53,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:53,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-23 21:35:53,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-23 21:35:53,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:35:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:35:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:35:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-23 21:35:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-23 21:35:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 21:35:57,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-23 21:35:57,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 21:35:57,207 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting runErr0ASSERT_VIOLATIONERROR_FUNCTION === [runErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 21:35:57,207 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 21:35:57,207 INFO L139 ounterexampleChecker]: Examining path program with hash 350627469, occurence #2 [2025-01-23 21:35:57,207 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 21:35:57,208 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-01-23 21:35:57,208 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,208 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-23 21:35:57,208 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,208 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-01-23 21:35:57,208 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,208 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-01-23 21:35:57,208 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 21:35:57,208 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-01-23 21:35:57,208 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 21:35:57,209 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2025-01-23 21:35:57,209 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,209 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-01-23 21:35:57,209 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,209 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2025-01-23 21:35:57,209 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,209 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-01-23 21:35:57,209 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,209 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2025-01-23 21:35:57,209 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,209 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2025-01-23 21:35:57,209 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,209 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2025-01-23 21:35:57,209 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,209 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 42 [2025-01-23 21:35:57,209 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,209 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2025-01-23 21:35:57,209 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,209 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 72 [2025-01-23 21:35:57,209 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,209 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 86 [2025-01-23 21:35:57,209 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,209 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2025-01-23 21:35:57,209 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,209 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 94 [2025-01-23 21:35:57,209 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,209 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 95 [2025-01-23 21:35:57,209 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,209 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 108 [2025-01-23 21:35:57,209 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,209 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 109 [2025-01-23 21:35:57,209 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,209 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2025-01-23 21:35:57,210 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,210 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 122 [2025-01-23 21:35:57,210 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,210 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 123 [2025-01-23 21:35:57,210 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,210 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2025-01-23 21:35:57,210 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,210 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 125 [2025-01-23 21:35:57,210 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,210 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 130 [2025-01-23 21:35:57,210 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,210 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2025-01-23 21:35:57,210 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,210 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 140 [2025-01-23 21:35:57,210 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 21:35:57,210 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 21:35:57,210 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 21:35:57,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 21:35:57,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1825837603, now seen corresponding path program 5 times [2025-01-23 21:35:57,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 21:35:57,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220294362] [2025-01-23 21:35:57,211 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 21:35:57,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 21:35:57,231 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 144 statements into 3 equivalence classes. [2025-01-23 21:35:57,308 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 144 of 144 statements. [2025-01-23 21:35:57,308 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-01-23 21:35:57,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:35:59,697 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 21:35:59,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 21:35:59,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220294362] [2025-01-23 21:35:59,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220294362] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 21:35:59,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643260201] [2025-01-23 21:35:59,697 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 21:35:59,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 21:35:59,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 21:35:59,701 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 21:35:59,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-23 21:35:59,970 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 144 statements into 3 equivalence classes. [2025-01-23 21:36:00,128 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 144 of 144 statements. [2025-01-23 21:36:00,129 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-01-23 21:36:00,129 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 21:36:00,134 INFO L256 TraceCheckSpWp]: Trace formula consists of 1130 conjuncts, 39 conjuncts are in the unsatisfiable core [2025-01-23 21:36:00,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 21:36:00,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2025-01-23 21:36:00,507 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-01-23 21:36:00,507 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 21:36:00,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2025-01-23 21:36:00,610 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-01-23 21:36:00,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643260201] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 21:36:00,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 21:36:00,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 7, 7] total 28 [2025-01-23 21:36:00,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601982491] [2025-01-23 21:36:00,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 21:36:00,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-01-23 21:36:00,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 21:36:00,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-01-23 21:36:00,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2025-01-23 21:36:00,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:36:00,612 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 21:36:00,612 INFO L472 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) [2025-01-23 21:36:00,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:36:00,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:36:00,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:36:00,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:36:00,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 21:36:00,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:36:00,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:36:00,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:36:00,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 21:36:00,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-23 21:36:00,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-23 21:36:00,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 21:36:00,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.