./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/libvsync/semaphore.i --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5dad65ad Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/libvsync/semaphore.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c654263c1c366ef9cc67f02592c2d3fd912134a9cb5af429926a9f4627826820 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-dev-5dad65a-m [2024-10-22 13:03:42,136 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-22 13:03:42,219 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-22 13:03:42,222 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-22 13:03:42,222 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-22 13:03:42,248 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-22 13:03:42,249 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-22 13:03:42,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-22 13:03:42,249 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-22 13:03:42,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-22 13:03:42,251 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-22 13:03:42,251 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-22 13:03:42,251 INFO L153 SettingsManager]: * Use SBE=true [2024-10-22 13:03:42,256 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-22 13:03:42,256 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-22 13:03:42,257 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-22 13:03:42,258 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-22 13:03:42,258 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-22 13:03:42,258 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-22 13:03:42,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-22 13:03:42,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-22 13:03:42,259 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-22 13:03:42,259 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-22 13:03:42,260 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-22 13:03:42,260 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-22 13:03:42,260 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-22 13:03:42,260 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-22 13:03:42,261 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-22 13:03:42,261 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-22 13:03:42,261 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-22 13:03:42,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-22 13:03:42,262 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-22 13:03:42,262 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-22 13:03:42,263 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-22 13:03:42,263 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-22 13:03:42,263 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-22 13:03:42,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-22 13:03:42,263 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-22 13:03:42,264 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-22 13:03:42,264 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-22 13:03:42,264 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-22 13:03:42,265 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c654263c1c366ef9cc67f02592c2d3fd912134a9cb5af429926a9f4627826820 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP [2024-10-22 13:03:42,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-22 13:03:42,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-22 13:03:42,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-22 13:03:42,511 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-22 13:03:42,512 INFO L274 PluginConnector]: CDTParser initialized [2024-10-22 13:03:42,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/libvsync/semaphore.i [2024-10-22 13:03:43,939 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-22 13:03:44,344 INFO L384 CDTParser]: Found 1 translation units. [2024-10-22 13:03:44,344 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/libvsync/semaphore.i [2024-10-22 13:03:44,383 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/56f236616/1c0cbff2282f40b79e9ba49fb2810044/FLAG5b93138ee [2024-10-22 13:03:44,398 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/56f236616/1c0cbff2282f40b79e9ba49fb2810044 [2024-10-22 13:03:44,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-22 13:03:44,403 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-22 13:03:44,404 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-22 13:03:44,404 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-22 13:03:44,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-22 13:03:44,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 01:03:44" (1/1) ... [2024-10-22 13:03:44,410 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27bd137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:03:44, skipping insertion in model container [2024-10-22 13:03:44,410 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 01:03:44" (1/1) ... [2024-10-22 13:03:44,506 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-22 13:03:46,292 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/libvsync/semaphore.i[194352,194365] [2024-10-22 13:03:46,297 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/libvsync/semaphore.i[194435,194448] [2024-10-22 13:03:46,297 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/libvsync/semaphore.i[194492,194505] [2024-10-22 13:03:46,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-22 13:03:46,319 INFO L200 MainTranslator]: Completed pre-run [2024-10-22 13:03:46,408 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2024-10-22 13:03:46,410 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2024-10-22 13:03:46,410 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2024-10-22 13:03:46,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2024-10-22 13:03:46,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2024-10-22 13:03:46,412 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2024-10-22 13:03:46,412 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2024-10-22 13:03:46,413 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2024-10-22 13:03:46,413 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2024-10-22 13:03:46,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2024-10-22 13:03:46,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2024-10-22 13:03:46,415 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2024-10-22 13:03:46,415 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2024-10-22 13:03:46,416 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2024-10-22 13:03:46,416 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2024-10-22 13:03:46,417 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2024-10-22 13:03:46,417 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2024-10-22 13:03:46,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2024-10-22 13:03:46,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2024-10-22 13:03:46,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2024-10-22 13:03:46,419 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2024-10-22 13:03:46,419 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2024-10-22 13:03:46,419 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2024-10-22 13:03:46,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2024-10-22 13:03:46,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2024-10-22 13:03:46,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2024-10-22 13:03:46,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2024-10-22 13:03:46,422 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2024-10-22 13:03:46,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2024-10-22 13:03:46,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2024-10-22 13:03:46,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2024-10-22 13:03:46,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2024-10-22 13:03:46,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2024-10-22 13:03:46,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2024-10-22 13:03:46,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2024-10-22 13:03:46,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2024-10-22 13:03:46,431 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2024-10-22 13:03:46,432 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2024-10-22 13:03:46,432 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2024-10-22 13:03:46,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2024-10-22 13:03:46,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2024-10-22 13:03:46,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2024-10-22 13:03:46,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2024-10-22 13:03:46,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2024-10-22 13:03:46,434 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2024-10-22 13:03:46,434 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2024-10-22 13:03:46,434 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2024-10-22 13:03:46,434 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2024-10-22 13:03:46,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2024-10-22 13:03:46,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2024-10-22 13:03:46,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2024-10-22 13:03:46,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2024-10-22 13:03:46,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2024-10-22 13:03:46,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2024-10-22 13:03:46,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2024-10-22 13:03:46,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2024-10-22 13:03:46,441 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2024-10-22 13:03:46,442 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2024-10-22 13:03:46,442 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2024-10-22 13:03:46,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2024-10-22 13:03:46,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2024-10-22 13:03:46,444 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2024-10-22 13:03:46,444 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2024-10-22 13:03:46,445 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2024-10-22 13:03:46,445 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2024-10-22 13:03:46,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2024-10-22 13:03:46,447 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2024-10-22 13:03:46,447 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2024-10-22 13:03:46,447 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2024-10-22 13:03:46,448 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2024-10-22 13:03:46,448 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2024-10-22 13:03:46,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2024-10-22 13:03:46,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2024-10-22 13:03:46,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2024-10-22 13:03:46,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2024-10-22 13:03:46,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2024-10-22 13:03:46,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2024-10-22 13:03:46,453 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2024-10-22 13:03:46,454 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2024-10-22 13:03:46,454 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2024-10-22 13:03:46,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2024-10-22 13:03:46,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2024-10-22 13:03:46,456 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2024-10-22 13:03:46,456 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2024-10-22 13:03:46,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2024-10-22 13:03:46,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2024-10-22 13:03:46,458 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2024-10-22 13:03:46,459 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2024-10-22 13:03:46,459 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2024-10-22 13:03:46,459 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2024-10-22 13:03:46,460 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2024-10-22 13:03:46,460 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2024-10-22 13:03:46,460 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2024-10-22 13:03:46,461 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2024-10-22 13:03:46,461 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2024-10-22 13:03:46,461 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2024-10-22 13:03:46,462 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2024-10-22 13:03:46,462 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2024-10-22 13:03:46,464 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2024-10-22 13:03:46,464 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2024-10-22 13:03:46,517 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/libvsync/semaphore.i[194352,194365] [2024-10-22 13:03:46,518 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/libvsync/semaphore.i[194435,194448] [2024-10-22 13:03:46,518 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/libvsync/semaphore.i[194492,194505] [2024-10-22 13:03:46,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-22 13:03:46,846 INFO L204 MainTranslator]: Completed translation [2024-10-22 13:03:46,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:03:46 WrapperNode [2024-10-22 13:03:46,846 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-22 13:03:46,847 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-22 13:03:46,847 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-22 13:03:46,847 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-22 13:03:46,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:03:46" (1/1) ... [2024-10-22 13:03:46,919 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:03:46" (1/1) ... [2024-10-22 13:03:46,967 INFO L138 Inliner]: procedures = 921, calls = 906, calls flagged for inlining = 817, calls inlined = 47, statements flattened = 502 [2024-10-22 13:03:46,968 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-22 13:03:46,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-22 13:03:46,968 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-22 13:03:46,968 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-22 13:03:46,981 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:03:46" (1/1) ... [2024-10-22 13:03:46,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:03:46" (1/1) ... [2024-10-22 13:03:46,986 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:03:46" (1/1) ... [2024-10-22 13:03:46,987 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:03:46" (1/1) ... [2024-10-22 13:03:47,002 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:03:46" (1/1) ... [2024-10-22 13:03:47,011 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:03:46" (1/1) ... [2024-10-22 13:03:47,017 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:03:46" (1/1) ... [2024-10-22 13:03:47,023 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:03:46" (1/1) ... [2024-10-22 13:03:47,032 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-22 13:03:47,037 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-22 13:03:47,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-22 13:03:47,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-22 13:03:47,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:03:46" (1/1) ... [2024-10-22 13:03:47,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-22 13:03:47,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 13:03:47,072 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-22 13:03:47,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-22 13:03:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2024-10-22 13:03:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2024-10-22 13:03:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-22 13:03:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-22 13:03:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-22 13:03:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-22 13:03:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-22 13:03:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-22 13:03:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-22 13:03:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2024-10-22 13:03:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2024-10-22 13:03:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-22 13:03:47,125 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-22 13:03:47,323 INFO L238 CfgBuilder]: Building ICFG [2024-10-22 13:03:47,326 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-22 13:03:47,920 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-22 13:03:47,920 INFO L287 CfgBuilder]: Performing block encoding [2024-10-22 13:03:48,161 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-22 13:03:48,161 INFO L314 CfgBuilder]: Removed 99 assume(true) statements. [2024-10-22 13:03:48,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 01:03:48 BoogieIcfgContainer [2024-10-22 13:03:48,162 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-22 13:03:48,164 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-22 13:03:48,164 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-22 13:03:48,167 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-22 13:03:48,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 01:03:44" (1/3) ... [2024-10-22 13:03:48,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1442fbea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 01:03:48, skipping insertion in model container [2024-10-22 13:03:48,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:03:46" (2/3) ... [2024-10-22 13:03:48,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1442fbea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 01:03:48, skipping insertion in model container [2024-10-22 13:03:48,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 01:03:48" (3/3) ... [2024-10-22 13:03:48,173 INFO L112 eAbstractionObserver]: Analyzing ICFG semaphore.i [2024-10-22 13:03:48,190 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-22 13:03:48,190 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-10-22 13:03:48,191 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-22 13:03:48,296 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-22 13:03:48,346 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-22 13:03:48,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-22 13:03:48,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 13:03:48,348 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-22 13:03:48,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-22 13:03:48,402 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-22 13:03:48,415 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == readerThread1of1ForFork0 ======== [2024-10-22 13:03:48,421 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;@15dc1cdc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-22 13:03:48,421 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-22 13:03:52,628 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr1ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:03:52,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:03:52,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1247065640, now seen corresponding path program 1 times [2024-10-22 13:03:52,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 13:03:52,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796038996] [2024-10-22 13:03:52,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:03:52,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 13:03:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:03:52,856 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-22 13:03:52,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 13:03:52,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796038996] [2024-10-22 13:03:52,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796038996] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:03:52,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 13:03:52,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-22 13:03:52,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504358104] [2024-10-22 13:03:52,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:03:52,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-22 13:03:52,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 13:03:52,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-22 13:03:52,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-22 13:03:52,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:52,893 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:03:52,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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) [2024-10-22 13:03:52,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:53,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:53,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-22 13:03:53,599 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:03:53,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:03:53,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1006684783, now seen corresponding path program 1 times [2024-10-22 13:03:53,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 13:03:53,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638752925] [2024-10-22 13:03:53,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:03:53,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 13:03:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:03:53,840 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-22 13:03:53,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 13:03:53,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638752925] [2024-10-22 13:03:53,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638752925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:03:53,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 13:03:53,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-22 13:03:53,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906779871] [2024-10-22 13:03:53,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:03:53,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-22 13:03:53,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 13:03:53,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-22 13:03:53,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-22 13:03:53,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:53,844 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:03:53,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2024-10-22 13:03:53,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:53,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:54,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:54,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:03:54,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-22 13:03:54,017 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:03:54,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:03:54,018 INFO L85 PathProgramCache]: Analyzing trace with hash -875491358, now seen corresponding path program 1 times [2024-10-22 13:03:54,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 13:03:54,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273089073] [2024-10-22 13:03:54,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:03:54,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 13:03:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:03:54,222 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2024-10-22 13:03:54,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 13:03:54,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273089073] [2024-10-22 13:03:54,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273089073] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:03:54,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 13:03:54,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-22 13:03:54,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878623244] [2024-10-22 13:03:54,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:03:54,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-22 13:03:54,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 13:03:54,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-22 13:03:54,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-22 13:03:54,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:54,225 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:03:54,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2024-10-22 13:03:54,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:54,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:03:54,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:54,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:54,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:03:54,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:03:54,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-22 13:03:54,330 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:03:54,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:03:54,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1247447522, now seen corresponding path program 1 times [2024-10-22 13:03:54,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 13:03:54,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288176988] [2024-10-22 13:03:54,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:03:54,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 13:03:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:03:54,489 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-22 13:03:54,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 13:03:54,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288176988] [2024-10-22 13:03:54,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288176988] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-22 13:03:54,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871739182] [2024-10-22 13:03:54,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:03:54,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 13:03:54,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 13:03:54,502 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-22 13:03:54,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-22 13:03:54,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:03:54,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 140 conjuncts are in the unsatisfiable core [2024-10-22 13:03:54,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:03:54,752 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-22 13:03:54,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-10-22 13:03:54,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-22 13:03:54,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-22 13:03:55,122 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-22 13:03:55,123 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-22 13:03:55,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871739182] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:03:55,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-22 13:03:55,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 10 [2024-10-22 13:03:55,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223381287] [2024-10-22 13:03:55,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:03:55,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-22 13:03:55,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 13:03:55,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-22 13:03:55,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-22 13:03:55,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:55,125 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:03:55,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 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) [2024-10-22 13:03:55,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:55,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:03:55,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:03:55,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:55,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:55,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:03:55,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:03:55,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-22 13:03:55,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-22 13:03:55,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 13:03:55,588 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:03:55,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:03:55,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1163022320, now seen corresponding path program 1 times [2024-10-22 13:03:55,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 13:03:55,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620437006] [2024-10-22 13:03:55,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:03:55,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 13:03:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:03:55,696 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-22 13:03:55,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 13:03:55,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620437006] [2024-10-22 13:03:55,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620437006] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-22 13:03:55,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157022690] [2024-10-22 13:03:55,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:03:55,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 13:03:55,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 13:03:55,699 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-22 13:03:55,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-22 13:03:55,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:03:55,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-22 13:03:55,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:03:55,886 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-22 13:03:55,889 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-22 13:03:55,944 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-22 13:03:55,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157022690] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-22 13:03:55,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-22 13:03:55,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-22 13:03:55,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866396906] [2024-10-22 13:03:55,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-22 13:03:55,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-22 13:03:55,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 13:03:55,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-22 13:03:55,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-22 13:03:55,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:55,950 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:03:55,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2024-10-22 13:03:55,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:55,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:03:55,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:03:55,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-22 13:03:55,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:56,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:56,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:03:56,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:03:56,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-22 13:03:56,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-22 13:03:56,138 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONUNKNOWN (1 of 2 remaining) [2024-10-22 13:03:56,139 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-22 13:03:56,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-22 13:03:56,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 13:03:56,344 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-22 13:03:56,346 INFO L312 ceAbstractionStarter]: Result for error location readerThread1of1ForFork0 was SAFE,SAFE (1/3) [2024-10-22 13:03:56,351 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-22 13:03:56,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-22 13:03:56,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 13:03:56,353 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-22 13:03:56,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2024-10-22 13:03:56,356 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-22 13:03:56,356 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-22 13:03:56,356 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;@15dc1cdc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-22 13:03:56,356 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-22 13:03:57,154 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-22 13:03:57,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:03:57,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1400890945, now seen corresponding path program 1 times [2024-10-22 13:03:57,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 13:03:57,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996967859] [2024-10-22 13:03:57,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:03:57,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 13:03:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:03:57,171 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-22 13:03:57,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 13:03:57,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996967859] [2024-10-22 13:03:57,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996967859] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:03:57,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 13:03:57,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-22 13:03:57,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262287013] [2024-10-22 13:03:57,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:03:57,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-22 13:03:57,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 13:03:57,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-22 13:03:57,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-22 13:03:57,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:57,174 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:03:57,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2024-10-22 13:03:57,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:57,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:03:57,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-22 13:03:57,420 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-22 13:03:57,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:03:57,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1528667150, now seen corresponding path program 1 times [2024-10-22 13:03:57,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 13:03:57,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419443653] [2024-10-22 13:03:57,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:03:57,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 13:03:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-22 13:03:57,444 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-22 13:03:57,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-22 13:03:57,475 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-22 13:03:57,476 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-22 13:03:57,476 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2024-10-22 13:03:57,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2024-10-22 13:03:57,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2024-10-22 13:03:57,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-22 13:03:57,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-22 13:03:57,479 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-22 13:03:57,479 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN (2/3) [2024-10-22 13:03:57,480 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-22 13:03:57,480 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-22 13:03:57,579 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-22 13:03:57,584 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-22 13:03:57,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-22 13:03:57,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 13:03:57,586 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-22 13:03:57,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2024-10-22 13:03:57,592 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-22 13:03:57,592 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == readerThread1of2ForFork0 ======== [2024-10-22 13:03:57,593 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;@15dc1cdc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-22 13:03:57,593 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-22 13:04:04,103 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr1ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:04:04,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:04:04,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1412805386, now seen corresponding path program 1 times [2024-10-22 13:04:04,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 13:04:04,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99164242] [2024-10-22 13:04:04,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:04:04,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 13:04:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:04:04,153 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-22 13:04:04,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 13:04:04,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99164242] [2024-10-22 13:04:04,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99164242] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:04:04,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 13:04:04,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-22 13:04:04,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084420879] [2024-10-22 13:04:04,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:04:04,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-22 13:04:04,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 13:04:04,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-22 13:04:04,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-22 13:04:04,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:04,158 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:04:04,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 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) [2024-10-22 13:04:04,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:06,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:06,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-22 13:04:06,859 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:04:06,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:04:06,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1548179128, now seen corresponding path program 1 times [2024-10-22 13:04:06,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 13:04:06,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064469748] [2024-10-22 13:04:06,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:04:06,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 13:04:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:04:06,988 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-10-22 13:04:06,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 13:04:06,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064469748] [2024-10-22 13:04:06,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064469748] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:04:06,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 13:04:06,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-22 13:04:06,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197950219] [2024-10-22 13:04:06,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:04:06,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-22 13:04:06,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 13:04:06,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-22 13:04:06,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-22 13:04:06,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:06,992 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:04:06,992 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) [2024-10-22 13:04:06,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:06,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:07,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:07,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:07,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-22 13:04:07,405 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:04:07,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:04:07,405 INFO L85 PathProgramCache]: Analyzing trace with hash 255181810, now seen corresponding path program 1 times [2024-10-22 13:04:07,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 13:04:07,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511532634] [2024-10-22 13:04:07,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:04:07,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 13:04:07,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:04:07,681 INFO L134 CoverageAnalysis]: Checked inductivity of 4303 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 3953 trivial. 0 not checked. [2024-10-22 13:04:07,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 13:04:07,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511532634] [2024-10-22 13:04:07,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511532634] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:04:07,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 13:04:07,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-22 13:04:07,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782911574] [2024-10-22 13:04:07,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:04:07,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-22 13:04:07,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 13:04:07,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-22 13:04:07,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-22 13:04:07,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:07,686 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:04:07,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2024-10-22 13:04:07,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:07,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:07,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:08,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:08,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:08,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:08,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-22 13:04:08,182 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:04:08,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:04:08,182 INFO L85 PathProgramCache]: Analyzing trace with hash 990867445, now seen corresponding path program 1 times [2024-10-22 13:04:08,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 13:04:08,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565040727] [2024-10-22 13:04:08,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:04:08,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 13:04:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:04:08,518 INFO L134 CoverageAnalysis]: Checked inductivity of 8139 backedges. 1209 proven. 0 refuted. 0 times theorem prover too weak. 6930 trivial. 0 not checked. [2024-10-22 13:04:08,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 13:04:08,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565040727] [2024-10-22 13:04:08,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565040727] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:04:08,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 13:04:08,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-22 13:04:08,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011413536] [2024-10-22 13:04:08,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:04:08,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-22 13:04:08,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 13:04:08,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-22 13:04:08,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-22 13:04:08,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:08,520 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:04:08,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2024-10-22 13:04:08,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:08,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:08,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:08,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:08,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:08,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:08,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:08,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:08,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-22 13:04:08,930 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:04:08,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:04:08,930 INFO L85 PathProgramCache]: Analyzing trace with hash -980654290, now seen corresponding path program 1 times [2024-10-22 13:04:08,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 13:04:08,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276067498] [2024-10-22 13:04:08,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:04:08,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 13:04:08,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:04:09,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2329 backedges. 685 proven. 0 refuted. 0 times theorem prover too weak. 1644 trivial. 0 not checked. [2024-10-22 13:04:09,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 13:04:09,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276067498] [2024-10-22 13:04:09,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276067498] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:04:09,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 13:04:09,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-22 13:04:09,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980997213] [2024-10-22 13:04:09,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:04:09,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-22 13:04:09,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 13:04:09,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-22 13:04:09,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-22 13:04:09,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:09,170 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:04:09,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2024-10-22 13:04:09,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:09,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:09,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:09,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:09,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:09,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:09,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:09,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:09,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:09,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:09,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-22 13:04:09,406 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:04:09,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:04:09,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1084848532, now seen corresponding path program 1 times [2024-10-22 13:04:09,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 13:04:09,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967554544] [2024-10-22 13:04:09,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:04:09,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 13:04:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:04:09,699 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 40 proven. 5 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2024-10-22 13:04:09,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 13:04:09,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967554544] [2024-10-22 13:04:09,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967554544] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-22 13:04:09,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705856395] [2024-10-22 13:04:09,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:04:09,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 13:04:09,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 13:04:09,702 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-22 13:04:09,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-22 13:04:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:04:10,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 1187 conjuncts, 127 conjuncts are in the unsatisfiable core [2024-10-22 13:04:10,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:04:10,103 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-22 13:04:10,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-10-22 13:04:10,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-22 13:04:10,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-22 13:04:10,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-22 13:04:10,290 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 [2024-10-22 13:04:10,428 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2024-10-22 13:04:10,428 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-22 13:04:10,609 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_519 (Array Int Int))) (< 3 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_519) |c_~#g_semaphore~0.base|) |c_~#g_semaphore~0.offset|) 4294967296))) is different from false [2024-10-22 13:04:10,661 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-22 13:04:10,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2024-10-22 13:04:10,670 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-22 13:04:10,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 37 [2024-10-22 13:04:10,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 [2024-10-22 13:04:10,711 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 4 not checked. [2024-10-22 13:04:10,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705856395] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-22 13:04:10,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-22 13:04:10,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 8] total 20 [2024-10-22 13:04:10,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336050017] [2024-10-22 13:04:10,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-22 13:04:10,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-22 13:04:10,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 13:04:10,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-22 13:04:10,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=297, Unknown=1, NotChecked=34, Total=380 [2024-10-22 13:04:10,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:10,716 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:04:10,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 11.1) internal successors, (222), 20 states have internal predecessors, (222), 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) [2024-10-22 13:04:10,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:10,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:10,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:10,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:10,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:10,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:11,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:11,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:11,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:11,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:11,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:11,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-22 13:04:11,788 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-22 13:04:11,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-22 13:04:11,970 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:04:11,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:04:11,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1519709908, now seen corresponding path program 1 times [2024-10-22 13:04:11,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 13:04:11,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457095203] [2024-10-22 13:04:11,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:04:11,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 13:04:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:04:14,832 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 31 proven. 12 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-10-22 13:04:14,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 13:04:14,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457095203] [2024-10-22 13:04:14,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457095203] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-22 13:04:14,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242993078] [2024-10-22 13:04:14,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:04:14,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 13:04:14,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 13:04:14,836 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-22 13:04:14,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-22 13:04:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:04:15,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-10-22 13:04:15,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:04:15,454 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-22 13:04:15,454 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-22 13:04:15,866 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 82 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-22 13:04:15,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242993078] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-22 13:04:15,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-22 13:04:15,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8, 7] total 27 [2024-10-22 13:04:15,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006817666] [2024-10-22 13:04:15,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-22 13:04:15,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-22 13:04:15,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 13:04:15,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-22 13:04:15,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=604, Unknown=0, NotChecked=0, Total=702 [2024-10-22 13:04:15,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:15,869 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:04:15,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 13.074074074074074) internal successors, (353), 27 states have internal predecessors, (353), 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) [2024-10-22 13:04:15,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:15,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:15,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:15,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:15,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:15,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-22 13:04:15,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:17,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:17,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:17,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:17,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:17,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:17,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-22 13:04:17,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-22 13:04:17,474 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-22 13:04:17,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-22 13:04:17,661 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:04:17,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:04:17,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1373931467, now seen corresponding path program 1 times [2024-10-22 13:04:17,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 13:04:17,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414750706] [2024-10-22 13:04:17,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:04:17,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 13:04:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:04:20,103 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 22 proven. 21 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-22 13:04:20,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 13:04:20,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414750706] [2024-10-22 13:04:20,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414750706] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-22 13:04:20,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628707432] [2024-10-22 13:04:20,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:04:20,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 13:04:20,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 13:04:20,106 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-22 13:04:20,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-22 13:04:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:04:20,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 821 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-10-22 13:04:20,408 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:04:20,676 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 38 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-22 13:04:20,676 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-22 13:04:21,247 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-22 13:04:21,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628707432] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-22 13:04:21,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-22 13:04:21,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 8, 9] total 34 [2024-10-22 13:04:21,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13410273] [2024-10-22 13:04:21,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-22 13:04:21,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-22 13:04:21,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 13:04:21,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-22 13:04:21,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=959, Unknown=0, NotChecked=0, Total=1122 [2024-10-22 13:04:21,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:21,251 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:04:21,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 9.264705882352942) internal successors, (315), 34 states have internal predecessors, (315), 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) [2024-10-22 13:04:21,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:21,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:21,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:21,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:21,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:21,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-22 13:04:21,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-10-22 13:04:21,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:23,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:23,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:23,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:23,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:23,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:23,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-22 13:04:23,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-22 13:04:23,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-10-22 13:04:23,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-22 13:04:24,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 13:04:24,026 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:04:24,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:04:24,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1601388706, now seen corresponding path program 2 times [2024-10-22 13:04:24,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 13:04:24,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008618983] [2024-10-22 13:04:24,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:04:24,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 13:04:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:04:25,903 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-22 13:04:25,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 13:04:25,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008618983] [2024-10-22 13:04:25,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008618983] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-22 13:04:25,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235118249] [2024-10-22 13:04:25,903 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-22 13:04:25,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 13:04:25,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 13:04:25,905 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-22 13:04:25,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-22 13:04:26,179 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-22 13:04:26,179 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-22 13:04:26,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 126 conjuncts are in the unsatisfiable core [2024-10-22 13:04:26,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:04:26,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-22 13:04:26,586 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-22 13:04:26,586 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-22 13:04:26,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235118249] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:04:26,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-22 13:04:26,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [20] total 31 [2024-10-22 13:04:26,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373438326] [2024-10-22 13:04:26,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:04:26,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-22 13:04:26,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 13:04:26,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-22 13:04:26,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=894, Unknown=0, NotChecked=0, Total=992 [2024-10-22 13:04:26,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:26,588 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:04:26,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 12 states have internal predecessors, (105), 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) [2024-10-22 13:04:26,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:26,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:26,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:26,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:26,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:26,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-22 13:04:26,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-10-22 13:04:26,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2024-10-22 13:04:26,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:27,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:27,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:27,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:27,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:27,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:27,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-22 13:04:27,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-22 13:04:27,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-10-22 13:04:27,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-22 13:04:27,419 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-22 13:04:27,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-22 13:04:27,601 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:04:27,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:04:27,602 INFO L85 PathProgramCache]: Analyzing trace with hash 44927282, now seen corresponding path program 1 times [2024-10-22 13:04:27,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 13:04:27,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588763432] [2024-10-22 13:04:27,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:04:27,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 13:04:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:04:29,367 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-22 13:04:29,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 13:04:29,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588763432] [2024-10-22 13:04:29,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588763432] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-22 13:04:29,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323416674] [2024-10-22 13:04:29,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:04:29,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 13:04:29,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 13:04:29,370 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-22 13:04:29,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-22 13:04:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:04:29,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 183 conjuncts are in the unsatisfiable core [2024-10-22 13:04:29,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:04:29,623 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-22 13:04:29,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-10-22 13:04:29,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-22 13:04:29,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-22 13:04:29,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-22 13:04:29,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-22 13:04:29,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-22 13:04:30,064 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-22 13:04:30,064 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-22 13:04:30,355 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-22 13:04:30,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323416674] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-22 13:04:30,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-22 13:04:30,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [18, 10] total 34 [2024-10-22 13:04:30,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885302034] [2024-10-22 13:04:30,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:04:30,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-22 13:04:30,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 13:04:30,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-22 13:04:30,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1019, Unknown=0, NotChecked=0, Total=1122 [2024-10-22 13:04:30,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:30,358 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:04:30,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 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) [2024-10-22 13:04:30,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:30,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:30,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:30,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:30,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:30,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-22 13:04:30,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-10-22 13:04:30,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2024-10-22 13:04:30,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-10-22 13:04:30,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:31,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:31,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:31,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:31,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:31,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:31,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-22 13:04:31,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-22 13:04:31,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-10-22 13:04:31,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-22 13:04:31,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-22 13:04:31,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-22 13:04:31,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-22 13:04:31,411 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:04:31,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:04:31,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1370416332, now seen corresponding path program 1 times [2024-10-22 13:04:31,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 13:04:31,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572348896] [2024-10-22 13:04:31,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:04:31,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 13:04:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:04:31,516 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-22 13:04:31,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 13:04:31,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572348896] [2024-10-22 13:04:31,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572348896] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-22 13:04:31,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937796750] [2024-10-22 13:04:31,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:04:31,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 13:04:31,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 13:04:31,519 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-22 13:04:31,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-22 13:04:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:04:31,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-22 13:04:31,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:04:31,789 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-22 13:04:31,789 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-22 13:04:31,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937796750] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:04:31,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-22 13:04:31,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-10-22 13:04:31,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566124534] [2024-10-22 13:04:31,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:04:31,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-22 13:04:31,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 13:04:31,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-22 13:04:31,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-22 13:04:31,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:31,791 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:04:31,791 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) [2024-10-22 13:04:31,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:31,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:31,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:31,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:31,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:31,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-22 13:04:31,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-10-22 13:04:31,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2024-10-22 13:04:31,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-10-22 13:04:31,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-22 13:04:31,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:32,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:32,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:32,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:32,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:32,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:32,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-22 13:04:32,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-22 13:04:32,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-10-22 13:04:32,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-22 13:04:32,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-22 13:04:32,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:04:32,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-22 13:04:32,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-22 13:04:32,367 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:04:32,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:04:32,367 INFO L85 PathProgramCache]: Analyzing trace with hash -2097445639, now seen corresponding path program 1 times [2024-10-22 13:04:32,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 13:04:32,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554923108] [2024-10-22 13:04:32,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:04:32,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 13:04:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-22 13:04:32,407 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-22 13:04:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-22 13:04:32,498 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-22 13:04:32,499 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-22 13:04:32,499 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location readerErr0ASSERT_VIOLATIONUNKNOWN (1 of 2 remaining) [2024-10-22 13:04:32,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-22 13:04:32,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-22 13:04:32,503 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-22 13:04:32,503 INFO L312 ceAbstractionStarter]: Result for error location readerThread1of2ForFork0 was UNSAFE,UNKNOWN (1/5) [2024-10-22 13:04:32,939 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-10-22 13:04:32,939 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-22 13:04:32,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 01:04:32 BasicIcfg [2024-10-22 13:04:32,942 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-22 13:04:32,943 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-22 13:04:32,943 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-22 13:04:32,943 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-22 13:04:32,944 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 01:03:48" (3/4) ... [2024-10-22 13:04:32,945 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-22 13:04:32,946 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-22 13:04:32,947 INFO L158 Benchmark]: Toolchain (without parser) took 48544.06ms. Allocated memory was 167.8MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 101.5MB in the beginning and 977.1MB in the end (delta: -875.6MB). Peak memory consumption was 699.8MB. Max. memory is 16.1GB. [2024-10-22 13:04:32,947 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 167.8MB. Free memory was 130.6MB in the beginning and 130.4MB in the end (delta: 176.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-22 13:04:32,948 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2442.75ms. Allocated memory was 167.8MB in the beginning and 222.3MB in the end (delta: 54.5MB). Free memory was 101.5MB in the beginning and 117.1MB in the end (delta: -15.6MB). Peak memory consumption was 110.7MB. Max. memory is 16.1GB. [2024-10-22 13:04:32,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 120.50ms. Allocated memory is still 222.3MB. Free memory was 117.1MB in the beginning and 108.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-22 13:04:32,949 INFO L158 Benchmark]: Boogie Preprocessor took 67.95ms. Allocated memory is still 222.3MB. Free memory was 108.7MB in the beginning and 105.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-22 13:04:32,949 INFO L158 Benchmark]: RCFGBuilder took 1125.21ms. Allocated memory is still 222.3MB. Free memory was 104.5MB in the beginning and 94.9MB in the end (delta: 9.6MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. [2024-10-22 13:04:32,949 INFO L158 Benchmark]: TraceAbstraction took 44778.62ms. Allocated memory was 222.3MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 94.9MB in the beginning and 977.1MB in the end (delta: -882.2MB). Peak memory consumption was 637.2MB. Max. memory is 16.1GB. [2024-10-22 13:04:32,950 INFO L158 Benchmark]: Witness Printer took 3.56ms. Allocated memory is still 1.7GB. Free memory is still 977.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-22 13:04:32,951 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 167.8MB. Free memory was 130.6MB in the beginning and 130.4MB in the end (delta: 176.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2442.75ms. Allocated memory was 167.8MB in the beginning and 222.3MB in the end (delta: 54.5MB). Free memory was 101.5MB in the beginning and 117.1MB in the end (delta: -15.6MB). Peak memory consumption was 110.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 120.50ms. Allocated memory is still 222.3MB. Free memory was 117.1MB in the beginning and 108.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.95ms. Allocated memory is still 222.3MB. Free memory was 108.7MB in the beginning and 105.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1125.21ms. Allocated memory is still 222.3MB. Free memory was 104.5MB in the beginning and 94.9MB in the end (delta: 9.6MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. * TraceAbstraction took 44778.62ms. Allocated memory was 222.3MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 94.9MB in the beginning and 977.1MB in the end (delta: -882.2MB). Peak memory consumption was 637.2MB. Max. memory is 16.1GB. * Witness Printer took 3.56ms. Allocated memory is still 1.7GB. Free memory is still 977.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 3755]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] - GenericResultAtLocation [Line: 3757]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] - GenericResultAtLocation [Line: 3762]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] - GenericResultAtLocation [Line: 3764]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] - GenericResultAtLocation [Line: 3770]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] - GenericResultAtLocation [Line: 3772]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] - GenericResultAtLocation [Line: 3778]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] - GenericResultAtLocation [Line: 3780]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] - GenericResultAtLocation [Line: 3786]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] - GenericResultAtLocation [Line: 3788]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] - GenericResultAtLocation [Line: 3794]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] - GenericResultAtLocation [Line: 3796]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] - GenericResultAtLocation [Line: 3802]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] - GenericResultAtLocation [Line: 3804]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] - GenericResultAtLocation [Line: 3810]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] - GenericResultAtLocation [Line: 3812]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] - GenericResultAtLocation [Line: 3817]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] - GenericResultAtLocation [Line: 3819]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] - GenericResultAtLocation [Line: 3824]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] - GenericResultAtLocation [Line: 3826]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] - GenericResultAtLocation [Line: 3831]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] - GenericResultAtLocation [Line: 3833]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] - GenericResultAtLocation [Line: 3838]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] - GenericResultAtLocation [Line: 3840]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] - GenericResultAtLocation [Line: 3845]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] - GenericResultAtLocation [Line: 3847]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] - GenericResultAtLocation [Line: 3852]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] - GenericResultAtLocation [Line: 3855]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] - GenericResultAtLocation [Line: 3861]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] - GenericResultAtLocation [Line: 3864]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] - GenericResultAtLocation [Line: 3870]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] - GenericResultAtLocation [Line: 3873]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] - GenericResultAtLocation [Line: 3879]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] - GenericResultAtLocation [Line: 3882]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] - GenericResultAtLocation [Line: 3888]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] - GenericResultAtLocation [Line: 3891]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] - GenericResultAtLocation [Line: 3897]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] - GenericResultAtLocation [Line: 3900]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] - GenericResultAtLocation [Line: 3907]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] - GenericResultAtLocation [Line: 3910]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] - GenericResultAtLocation [Line: 3917]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] - GenericResultAtLocation [Line: 3920]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] - GenericResultAtLocation [Line: 3927]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] - GenericResultAtLocation [Line: 3930]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] - GenericResultAtLocation [Line: 3937]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] - GenericResultAtLocation [Line: 3940]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] - GenericResultAtLocation [Line: 3947]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] - GenericResultAtLocation [Line: 3950]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] - GenericResultAtLocation [Line: 3957]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] - GenericResultAtLocation [Line: 3960]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] - GenericResultAtLocation [Line: 3966]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] - GenericResultAtLocation [Line: 3969]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] - GenericResultAtLocation [Line: 3975]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] - GenericResultAtLocation [Line: 3978]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] - GenericResultAtLocation [Line: 3984]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] - GenericResultAtLocation [Line: 3987]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] - GenericResultAtLocation [Line: 3993]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] - GenericResultAtLocation [Line: 3996]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] - GenericResultAtLocation [Line: 4002]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] - GenericResultAtLocation [Line: 4005]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] - GenericResultAtLocation [Line: 4011]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] - GenericResultAtLocation [Line: 4014]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] - GenericResultAtLocation [Line: 4020]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] - GenericResultAtLocation [Line: 4023]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] - GenericResultAtLocation [Line: 4029]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] - GenericResultAtLocation [Line: 4032]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] - GenericResultAtLocation [Line: 4038]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] - GenericResultAtLocation [Line: 4041]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] - GenericResultAtLocation [Line: 4047]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] - GenericResultAtLocation [Line: 4050]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] - GenericResultAtLocation [Line: 4056]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] - GenericResultAtLocation [Line: 4059]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] - GenericResultAtLocation [Line: 4065]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] - GenericResultAtLocation [Line: 4068]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] - GenericResultAtLocation [Line: 4074]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] - GenericResultAtLocation [Line: 4077]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] - GenericResultAtLocation [Line: 4083]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] - GenericResultAtLocation [Line: 4086]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] - GenericResultAtLocation [Line: 4092]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] - GenericResultAtLocation [Line: 4095]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] - GenericResultAtLocation [Line: 4101]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] - GenericResultAtLocation [Line: 4103]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] - GenericResultAtLocation [Line: 4109]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] - GenericResultAtLocation [Line: 4111]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] - GenericResultAtLocation [Line: 4117]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] - GenericResultAtLocation [Line: 4119]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] - GenericResultAtLocation [Line: 4125]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] - GenericResultAtLocation [Line: 4127]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] - GenericResultAtLocation [Line: 4133]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] - GenericResultAtLocation [Line: 4135]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] - GenericResultAtLocation [Line: 4141]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] - GenericResultAtLocation [Line: 4143]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] - GenericResultAtLocation [Line: 4149]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] - GenericResultAtLocation [Line: 4151]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] - GenericResultAtLocation [Line: 4157]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] - GenericResultAtLocation [Line: 4159]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] - GenericResultAtLocation [Line: 4165]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] - GenericResultAtLocation [Line: 4167]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] - GenericResultAtLocation [Line: 4173]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] - GenericResultAtLocation [Line: 4175]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 28628, independent: 27732, independent conditional: 1274, independent unconditional: 26458, dependent: 896, dependent conditional: 852, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27781, independent: 27732, independent conditional: 1274, independent unconditional: 26458, dependent: 49, dependent conditional: 5, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 27781, independent: 27732, independent conditional: 1274, independent unconditional: 26458, dependent: 49, dependent conditional: 5, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27786, independent: 27732, independent conditional: 1274, independent unconditional: 26458, dependent: 54, dependent conditional: 10, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 27786, independent: 27732, independent conditional: 1, independent unconditional: 27731, dependent: 54, dependent conditional: 1, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 27786, independent: 27732, independent conditional: 1, independent unconditional: 27731, dependent: 54, dependent conditional: 1, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18088, independent: 18043, independent conditional: 1, independent unconditional: 18042, dependent: 45, dependent conditional: 1, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18088, independent: 18021, independent conditional: 0, independent unconditional: 18021, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 67, independent: 22, independent conditional: 1, independent unconditional: 21, dependent: 45, dependent conditional: 1, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 67, independent: 22, independent conditional: 1, independent unconditional: 21, dependent: 45, dependent conditional: 1, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4723, independent: 1684, independent conditional: 51, independent unconditional: 1633, dependent: 3039, dependent conditional: 46, dependent unconditional: 2992, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 27786, independent: 9689, independent conditional: 0, independent unconditional: 9689, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 18088, unknown conditional: 2, unknown unconditional: 18086] , Statistics on independence cache: Total cache size (in pairs): 18088, Positive cache size: 18043, Positive conditional cache size: 1, Positive unconditional cache size: 18042, Negative cache size: 45, Negative conditional cache size: 1, Negative unconditional cache size: 44, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1282, Maximal queried relation: 2, Independence queries for same thread: 847, Persistent sets #1 benchmarks: Persistent set computation time: 4.8s, Number of persistent set computation: 438, Number of trivial persistent sets: 309, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26502, independent: 26458, independent conditional: 0, independent unconditional: 26458, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 28628, independent: 27732, independent conditional: 1274, independent unconditional: 26458, dependent: 896, dependent conditional: 852, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27781, independent: 27732, independent conditional: 1274, independent unconditional: 26458, dependent: 49, dependent conditional: 5, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 27781, independent: 27732, independent conditional: 1274, independent unconditional: 26458, dependent: 49, dependent conditional: 5, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27786, independent: 27732, independent conditional: 1274, independent unconditional: 26458, dependent: 54, dependent conditional: 10, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 27786, independent: 27732, independent conditional: 1, independent unconditional: 27731, dependent: 54, dependent conditional: 1, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 27786, independent: 27732, independent conditional: 1, independent unconditional: 27731, dependent: 54, dependent conditional: 1, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18088, independent: 18043, independent conditional: 1, independent unconditional: 18042, dependent: 45, dependent conditional: 1, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18088, independent: 18021, independent conditional: 0, independent unconditional: 18021, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 67, independent: 22, independent conditional: 1, independent unconditional: 21, dependent: 45, dependent conditional: 1, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 67, independent: 22, independent conditional: 1, independent unconditional: 21, dependent: 45, dependent conditional: 1, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4723, independent: 1684, independent conditional: 51, independent unconditional: 1633, dependent: 3039, dependent conditional: 46, dependent unconditional: 2992, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 27786, independent: 9689, independent conditional: 0, independent unconditional: 9689, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 18088, unknown conditional: 2, unknown unconditional: 18086] , Statistics on independence cache: Total cache size (in pairs): 18088, Positive cache size: 18043, Positive conditional cache size: 1, Positive unconditional cache size: 18042, Negative cache size: 45, Negative conditional cache size: 1, Negative unconditional cache size: 44, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1282, Maximal queried relation: 2, Independence queries for same thread: 847 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2158, independent: 2129, independent conditional: 27, independent unconditional: 2102, dependent: 29, dependent conditional: 22, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2137, independent: 2129, independent conditional: 27, independent unconditional: 2102, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2137, independent: 2129, independent conditional: 27, independent unconditional: 2102, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2137, independent: 2129, independent conditional: 27, independent unconditional: 2102, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2137, independent: 2129, independent conditional: 0, independent unconditional: 2129, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2137, independent: 2129, independent conditional: 0, independent unconditional: 2129, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2071, independent: 2064, independent conditional: 0, independent unconditional: 2064, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2071, independent: 2059, independent conditional: 0, independent unconditional: 2059, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 12, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 12, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1010, independent: 422, independent conditional: 0, independent unconditional: 422, dependent: 588, dependent conditional: 0, dependent unconditional: 588, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2137, independent: 65, independent conditional: 0, independent unconditional: 65, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 2071, unknown conditional: 0, unknown unconditional: 2071] , Statistics on independence cache: Total cache size (in pairs): 2071, Positive cache size: 2064, Positive conditional cache size: 0, Positive unconditional cache size: 2064, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 28, Maximal queried relation: 0, Independence queries for same thread: 21, Persistent sets #1 benchmarks: Persistent set computation time: 1.0s, Number of persistent set computation: 21, Number of trivial persistent sets: 21, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2109, independent: 2102, independent conditional: 0, independent unconditional: 2102, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2158, independent: 2129, independent conditional: 27, independent unconditional: 2102, dependent: 29, dependent conditional: 22, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2137, independent: 2129, independent conditional: 27, independent unconditional: 2102, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2137, independent: 2129, independent conditional: 27, independent unconditional: 2102, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2137, independent: 2129, independent conditional: 27, independent unconditional: 2102, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2137, independent: 2129, independent conditional: 0, independent unconditional: 2129, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2137, independent: 2129, independent conditional: 0, independent unconditional: 2129, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2071, independent: 2064, independent conditional: 0, independent unconditional: 2064, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2071, independent: 2059, independent conditional: 0, independent unconditional: 2059, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 12, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 12, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1010, independent: 422, independent conditional: 0, independent unconditional: 422, dependent: 588, dependent conditional: 0, dependent unconditional: 588, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2137, independent: 65, independent conditional: 0, independent unconditional: 65, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 2071, unknown conditional: 0, unknown unconditional: 2071] , Statistics on independence cache: Total cache size (in pairs): 2071, Positive cache size: 2064, Positive conditional cache size: 0, Positive unconditional cache size: 2064, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 28, Maximal queried relation: 0, Independence queries for same thread: 21 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 247589, independent: 227738, independent conditional: 81103, independent unconditional: 146635, dependent: 19851, dependent conditional: 19729, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 227881, independent: 227738, independent conditional: 81103, independent unconditional: 146635, dependent: 143, dependent conditional: 21, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 227881, independent: 227738, independent conditional: 81103, independent unconditional: 146635, dependent: 143, dependent conditional: 21, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 227894, independent: 227738, independent conditional: 81103, independent unconditional: 146635, dependent: 156, dependent conditional: 34, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 227894, independent: 227738, independent conditional: 2, independent unconditional: 227736, dependent: 156, dependent conditional: 1, dependent unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 227894, independent: 227738, independent conditional: 2, independent unconditional: 227736, dependent: 156, dependent conditional: 1, dependent unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 86338, independent: 86215, independent conditional: 2, independent unconditional: 86213, dependent: 123, dependent conditional: 1, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 86338, independent: 86161, independent conditional: 0, independent unconditional: 86161, dependent: 177, dependent conditional: 0, dependent unconditional: 177, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 177, independent: 54, independent conditional: 2, independent unconditional: 52, dependent: 123, dependent conditional: 1, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 177, independent: 54, independent conditional: 2, independent unconditional: 52, dependent: 123, dependent conditional: 1, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8626, independent: 2544, independent conditional: 82, independent unconditional: 2462, dependent: 6081, dependent conditional: 33, dependent unconditional: 6048, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 227894, independent: 141523, independent conditional: 0, independent unconditional: 141523, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 86338, unknown conditional: 3, unknown unconditional: 86335] , Statistics on independence cache: Total cache size (in pairs): 86338, Positive cache size: 86215, Positive conditional cache size: 2, Positive unconditional cache size: 86213, Negative cache size: 123, Negative conditional cache size: 1, Negative unconditional cache size: 122, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 81134, Maximal queried relation: 1, Independence queries for same thread: 19708, Persistent sets #1 benchmarks: Persistent set computation time: 9.0s, Number of persistent set computation: 5529, Number of trivial persistent sets: 4010, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 146757, independent: 146635, independent conditional: 0, independent unconditional: 146635, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 247589, independent: 227738, independent conditional: 81103, independent unconditional: 146635, dependent: 19851, dependent conditional: 19729, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 227881, independent: 227738, independent conditional: 81103, independent unconditional: 146635, dependent: 143, dependent conditional: 21, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 227881, independent: 227738, independent conditional: 81103, independent unconditional: 146635, dependent: 143, dependent conditional: 21, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 227894, independent: 227738, independent conditional: 81103, independent unconditional: 146635, dependent: 156, dependent conditional: 34, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 227894, independent: 227738, independent conditional: 2, independent unconditional: 227736, dependent: 156, dependent conditional: 1, dependent unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 227894, independent: 227738, independent conditional: 2, independent unconditional: 227736, dependent: 156, dependent conditional: 1, dependent unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 86338, independent: 86215, independent conditional: 2, independent unconditional: 86213, dependent: 123, dependent conditional: 1, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 86338, independent: 86161, independent conditional: 0, independent unconditional: 86161, dependent: 177, dependent conditional: 0, dependent unconditional: 177, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 177, independent: 54, independent conditional: 2, independent unconditional: 52, dependent: 123, dependent conditional: 1, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 177, independent: 54, independent conditional: 2, independent unconditional: 52, dependent: 123, dependent conditional: 1, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8626, independent: 2544, independent conditional: 82, independent unconditional: 2462, dependent: 6081, dependent conditional: 33, dependent unconditional: 6048, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 227894, independent: 141523, independent conditional: 0, independent unconditional: 141523, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 86338, unknown conditional: 3, unknown unconditional: 86335] , Statistics on independence cache: Total cache size (in pairs): 86338, Positive cache size: 86215, Positive conditional cache size: 2, Positive unconditional cache size: 86213, Negative cache size: 123, Negative conditional cache size: 1, Negative unconditional cache size: 122, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 81134, Maximal queried relation: 1, Independence queries for same thread: 19708 - UnprovableResult [Line: 3928]: Unable to prove that unknown kind of specification holds Unable to prove that unknown kind of specification holds Reason: overapproximation of __atomic_compare_exchange_n at line 3928. Possible FailurePath: [L5964] 0 static vuint32_t g_cs_x = 0; [L5965] 0 static vuint32_t g_cs_y = 0; [L6026] 0 semaphore_t g_semaphore; [L6007] 0 pthread_t t[(2 + 2)]; [L6008] CALL 0 init() [L6030] CALL 0 semaphore_init(&g_semaphore, (2 + 2)) [L5377] CALL 0 vatomic32_write(&s->s, n) [L5377] RET 0 vatomic32_write(&s->s, n) [L6030] RET 0 semaphore_init(&g_semaphore, (2 + 2)) [L6008] RET 0 init() [L6009] FCALL 0 verification_loop_bound(2 + 1) [L6010] 0 vuintptr_t i = 0; VAL [g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, i=0, t={5:0}] [L6010] COND TRUE 0 i < 2 [L6011] FCALL, FORK 0 pthread_create(&t[i], 0, writer, (void *)i) VAL [g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, i=0, t={5:0}] [L5989] 1 vuint32_t tid = (vuint32_t)(vuintptr_t)arg; [L5990] CALL 1 writer_acquire(tid) [L6010] 0 i++ VAL [g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, i=1, t={5:0}] [L6010] COND TRUE 0 i < 2 [L6011] FCALL, FORK 0 pthread_create(&t[i], 0, writer, (void *)i) VAL [g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, i=1, t={5:0}] [L5989] 2 vuint32_t tid = (vuint32_t)(vuintptr_t)arg; [L5990] CALL 2 writer_acquire(tid) [L6010] 0 i++ VAL [g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, i=2, t={5:0}] [L6010] COND FALSE 0 !(i < 2) [L6013] CALL 0 verification_loop_bound((2 + 2) + 1) [L6036] CALL 1 semaphore_acquire(&g_semaphore, (2 + 2)) [L5382] CALL 1 vatomic32_await_ge_sub_acq(&s->s, i, i) [L2425] CALL 1 vatomic32_await_ge_sub(a, c, v) [L5034] 1 vuint32_t cur = 0; [L5035] CALL, EXPR 1 vatomic32_read(a) [L3779] EXPR 1 a->_v VAL [\old(a)={4:0}, a={4:0}, g_cs_x=0, g_cs_y=0, g_semaphore={4:0}] [L3779] 1 vuint32_t tmp = (vuint32_t)__atomic_load_n(&a->_v, 5); [L3781] 1 return tmp; [L5035] RET, EXPR 1 vatomic32_read(a) [L5035] 1 vuint32_t old = vatomic32_read(a); [L5037] 1 cur = old VAL [\old(a)={4:0}, \old(c)=4, \old(v)=4, a={4:0}, c=4, cur=4, g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, old=4, v=4] [L6036] CALL 2 semaphore_acquire(&g_semaphore, (2 + 2)) [L5382] CALL 2 vatomic32_await_ge_sub_acq(&s->s, i, i) [L2425] CALL 2 vatomic32_await_ge_sub(a, c, v) [L5034] 2 vuint32_t cur = 0; [L5035] CALL, EXPR 2 vatomic32_read(a) [L3779] EXPR 2 a->_v VAL [\old(a)={4:0}, \result=4, a={4:0}, g_cs_x=0, g_cs_y=0, g_semaphore={4:0}] [L3779] 2 vuint32_t tmp = (vuint32_t)__atomic_load_n(&a->_v, 5); [L3781] 2 return tmp; [L5035] RET, EXPR 2 vatomic32_read(a) [L5035] 2 vuint32_t old = vatomic32_read(a); [L5038] COND FALSE 1 !(!(cur >= c)) [L5041] CALL 1 vatomic32_cmpxchg(a, cur, cur - v) [L3926] 1 vuint32_t exp = (vuint32_t)e; VAL [\old(a)={4:0}, \old(e)=4, \old(v)=0, a={4:0}, e=4, exp=4, g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, v=0] [L5037] 2 cur = old VAL [\old(a)={4:0}, \old(c)=4, \old(v)=4, a={4:0}, c=4, cur=4, g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, old=4, v=4] [L6013] RET 0 verification_loop_bound((2 + 2) + 1) [L6014] 0 vuintptr_t i = 2; VAL [g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, i=2, t={5:0}] [L3928-L3929] 1 __atomic_compare_exchange_n(&a->_v, &exp, (vuint32_t)v, 0, 5, 5) VAL [\old(a)={4:0}, \old(e)=4, \old(v)=0, a={4:0}, e=4, exp=4, g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, v=0] [L5038] COND FALSE 2 !(!(cur >= c)) [L5041] CALL 2 vatomic32_cmpxchg(a, cur, cur - v) [L3926] 2 vuint32_t exp = (vuint32_t)e; VAL [\old(a)={4:0}, \old(e)=4, \old(v)=0, a={4:0}, e=4, exp=4, g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, v=0] [L6014] COND TRUE 0 i < (2 + 2) [L6015] FCALL, FORK 0 pthread_create(&t[i], 0, reader, (void *)i) VAL [g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, i=2, t={5:0}] [L6014] 0 i++ VAL [g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, i=3, t={5:0}] [L5998] 3 vuint32_t tid = (vuint32_t)(vuintptr_t)arg; [L5999] CALL 3 reader_acquire(tid) [L3928-L3929] 2 __atomic_compare_exchange_n(&a->_v, &exp, (vuint32_t)v, 0, 5, 5) VAL [\old(a)={4:0}, \old(e)=4, \old(v)=0, a={4:0}, e=4, exp=4, g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, v=0] [L6014] COND TRUE 0 i < (2 + 2) [L6015] FCALL, FORK 0 pthread_create(&t[i], 0, reader, (void *)i) VAL [g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, i=3, t={5:0}] [L5998] 4 vuint32_t tid = (vuint32_t)(vuintptr_t)arg; [L5999] CALL 4 reader_acquire(tid) [L6014] 0 i++ VAL [g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, i=4, t={5:0}] [L6014] COND FALSE 0 !(i < (2 + 2)) [L6017] FCALL 0 post() [L6018] CALL 0 verification_loop_bound((2 + 2) + 1) [L6048] CALL 3 semaphore_acquire(&g_semaphore, 1) [L5382] CALL 3 vatomic32_await_ge_sub_acq(&s->s, i, i) [L2425] CALL 3 vatomic32_await_ge_sub(a, c, v) [L5034] 3 vuint32_t cur = 0; [L5035] CALL, EXPR 3 vatomic32_read(a) [L3779] EXPR 3 a->_v VAL [\old(a)={4:0}, \result=4, a={4:0}, g_cs_x=0, g_cs_y=0, g_semaphore={4:0}] [L3779] 3 vuint32_t tmp = (vuint32_t)__atomic_load_n(&a->_v, 5); [L3781] 3 return tmp; [L5035] RET, EXPR 3 vatomic32_read(a) [L5035] 3 vuint32_t old = vatomic32_read(a); [L6048] CALL 4 semaphore_acquire(&g_semaphore, 1) [L5382] CALL 4 vatomic32_await_ge_sub_acq(&s->s, i, i) [L2425] CALL 4 vatomic32_await_ge_sub(a, c, v) [L5034] 4 vuint32_t cur = 0; [L5035] CALL, EXPR 4 vatomic32_read(a) [L3779] EXPR 4 a->_v VAL [\old(a)={4:0}, \result=4, \result=4, a={4:0}, g_cs_x=0, g_cs_y=0, g_semaphore={4:0}] [L3779] 4 vuint32_t tmp = (vuint32_t)__atomic_load_n(&a->_v, 5); [L3781] 4 return tmp; [L5035] RET, EXPR 4 vatomic32_read(a) [L5035] 4 vuint32_t old = vatomic32_read(a); [L5037] 3 cur = old VAL [\old(a)={4:0}, \old(a)={4:0}, \old(c)=1, \old(c)=4, \old(v)=1, \old(v)=4, a={4:0}, a={4:0}, c=1, c=4, cur=4, cur=4, g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, old=4, old=4, v=1, v=4] [L6018] RET 0 verification_loop_bound((2 + 2) + 1) [L6019] 0 vuintptr_t i = 0; VAL [g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, i=0, t={5:0}] [L5038] COND FALSE 3 !(!(cur >= c)) [L5041] CALL 3 vatomic32_cmpxchg(a, cur, cur - v) [L3926] 3 vuint32_t exp = (vuint32_t)e; VAL [\old(a)={4:0}, \old(a)={4:0}, \old(e)=4, \old(e)=4, \old(v)=0, \old(v)=3, a={4:0}, a={4:0}, e=4, e=4, exp=4, exp=4, g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, v=0, v=3] [L5038] COND FALSE 4 !(!(cur >= c)) [L5041] CALL 4 vatomic32_cmpxchg(a, cur, cur - v) [L3926] 4 vuint32_t exp = (vuint32_t)e; VAL [\old(a)={4:0}, \old(a)={4:0}, \old(e)=4, \old(e)=4, \old(v)=0, \old(v)=3, a={4:0}, a={4:0}, e=4, e=4, exp=4, exp=4, g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, v=0, v=3] [L6019] COND TRUE 0 i < (2 + 2) [L6020] 0 t[i] VAL [g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, i=0, t={5:0}] [L3928-L3929] 3 __atomic_compare_exchange_n(&a->_v, &exp, (vuint32_t)v, 0, 5, 5) VAL [\old(a)={4:0}, \old(a)={4:0}, \old(e)=4, \old(e)=4, \old(v)=0, \old(v)=3, a={4:0}, a={4:0}, e=4, e=4, exp=4, exp=4, g_cs_x=0, g_cs_y=0, g_semaphore={4:0}, v=0, v=3] - UnprovableResult [Line: 5978]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: readerThread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 248 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 8.0s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 5.6s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 679 NumberOfCodeBlocks, 679 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 719 ConstructedInterpolants, 0 QuantifiedInterpolants, 1307 SizeOfPredicates, 34 NumberOfNonLiveVariables, 859 ConjunctsInSsa, 145 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 782/786 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 248 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: readerThread1of2ForFork0 with 1 thread instances CFG has 7 procedures, 351 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 34.9s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 18.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 143, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 13.2s InterpolantComputationTime, 4655 NumberOfCodeBlocks, 4655 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 5216 ConstructedInterpolants, 13 QuantifiedInterpolants, 15179 SizeOfPredicates, 213 NumberOfNonLiveVariables, 5174 ConjunctsInSsa, 524 ConjunctsInUnsatCore, 21 InterpolantComputations, 8 PerfectInterpolantSequences, 16281/16367 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-22 13:04:32,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Ended with exit code 0 [2024-10-22 13:04:33,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Forceful destruction successful, exit code 0 [2024-10-22 13:04:33,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-10-22 13:04:33,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/libvsync/semaphore.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c654263c1c366ef9cc67f02592c2d3fd912134a9cb5af429926a9f4627826820 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-dev-5dad65a-m [2024-10-22 13:04:35,847 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-22 13:04:35,908 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-10-22 13:04:35,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-22 13:04:35,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-22 13:04:35,954 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-22 13:04:35,955 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-22 13:04:35,955 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-22 13:04:35,958 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-22 13:04:35,958 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-22 13:04:35,959 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-22 13:04:35,960 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-22 13:04:35,960 INFO L153 SettingsManager]: * Use SBE=true [2024-10-22 13:04:35,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-22 13:04:35,962 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-22 13:04:35,962 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-22 13:04:35,963 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-22 13:04:35,963 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-22 13:04:35,963 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-22 13:04:35,963 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-22 13:04:35,964 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-22 13:04:35,967 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-22 13:04:35,967 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-22 13:04:35,967 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-22 13:04:35,968 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-22 13:04:35,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-22 13:04:35,968 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-22 13:04:35,968 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-22 13:04:35,968 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-22 13:04:35,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-22 13:04:35,969 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-22 13:04:35,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-22 13:04:35,969 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-22 13:04:35,969 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-22 13:04:35,970 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-22 13:04:35,970 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-22 13:04:35,971 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-22 13:04:35,972 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-22 13:04:35,972 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-22 13:04:35,973 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-22 13:04:35,973 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-22 13:04:35,973 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-22 13:04:35,974 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-22 13:04:35,974 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c654263c1c366ef9cc67f02592c2d3fd912134a9cb5af429926a9f4627826820 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP [2024-10-22 13:04:36,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-22 13:04:36,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-22 13:04:36,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-22 13:04:36,275 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-22 13:04:36,275 INFO L274 PluginConnector]: CDTParser initialized [2024-10-22 13:04:36,277 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/libvsync/semaphore.i [2024-10-22 13:04:37,850 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-22 13:04:38,260 INFO L384 CDTParser]: Found 1 translation units. [2024-10-22 13:04:38,261 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/libvsync/semaphore.i [2024-10-22 13:04:38,306 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f1a4cf65c/c577dd2cc3ad4c9db3abb5e122aed0d7/FLAG9c112389e [2024-10-22 13:04:38,325 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f1a4cf65c/c577dd2cc3ad4c9db3abb5e122aed0d7 [2024-10-22 13:04:38,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-22 13:04:38,329 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-22 13:04:38,331 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-22 13:04:38,332 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-22 13:04:38,336 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-22 13:04:38,337 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 01:04:38" (1/1) ... [2024-10-22 13:04:38,338 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49608aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:04:38, skipping insertion in model container [2024-10-22 13:04:38,338 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 01:04:38" (1/1) ... [2024-10-22 13:04:38,433 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-22 13:04:40,066 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/libvsync/semaphore.i[194352,194365] [2024-10-22 13:04:40,077 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/libvsync/semaphore.i[194435,194448] [2024-10-22 13:04:40,078 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/libvsync/semaphore.i[194492,194505] [2024-10-22 13:04:40,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-22 13:04:40,123 INFO L200 MainTranslator]: Completed pre-run [2024-10-22 13:04:40,227 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2024-10-22 13:04:40,229 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2024-10-22 13:04:40,230 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2024-10-22 13:04:40,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2024-10-22 13:04:40,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2024-10-22 13:04:40,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2024-10-22 13:04:40,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2024-10-22 13:04:40,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2024-10-22 13:04:40,233 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2024-10-22 13:04:40,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2024-10-22 13:04:40,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2024-10-22 13:04:40,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2024-10-22 13:04:40,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2024-10-22 13:04:40,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2024-10-22 13:04:40,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2024-10-22 13:04:40,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2024-10-22 13:04:40,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2024-10-22 13:04:40,239 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2024-10-22 13:04:40,239 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2024-10-22 13:04:40,240 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2024-10-22 13:04:40,240 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2024-10-22 13:04:40,241 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2024-10-22 13:04:40,241 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2024-10-22 13:04:40,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2024-10-22 13:04:40,243 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2024-10-22 13:04:40,243 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2024-10-22 13:04:40,243 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2024-10-22 13:04:40,244 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2024-10-22 13:04:40,245 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2024-10-22 13:04:40,245 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2024-10-22 13:04:40,246 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2024-10-22 13:04:40,246 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2024-10-22 13:04:40,247 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2024-10-22 13:04:40,247 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2024-10-22 13:04:40,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2024-10-22 13:04:40,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2024-10-22 13:04:40,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2024-10-22 13:04:40,251 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2024-10-22 13:04:40,251 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2024-10-22 13:04:40,251 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2024-10-22 13:04:40,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2024-10-22 13:04:40,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2024-10-22 13:04:40,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2024-10-22 13:04:40,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2024-10-22 13:04:40,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2024-10-22 13:04:40,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2024-10-22 13:04:40,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2024-10-22 13:04:40,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2024-10-22 13:04:40,254 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2024-10-22 13:04:40,254 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2024-10-22 13:04:40,255 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2024-10-22 13:04:40,259 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2024-10-22 13:04:40,260 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2024-10-22 13:04:40,260 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2024-10-22 13:04:40,262 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2024-10-22 13:04:40,263 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2024-10-22 13:04:40,263 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2024-10-22 13:04:40,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2024-10-22 13:04:40,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2024-10-22 13:04:40,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2024-10-22 13:04:40,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2024-10-22 13:04:40,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2024-10-22 13:04:40,266 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2024-10-22 13:04:40,266 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2024-10-22 13:04:40,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2024-10-22 13:04:40,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2024-10-22 13:04:40,268 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2024-10-22 13:04:40,268 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2024-10-22 13:04:40,269 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2024-10-22 13:04:40,269 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2024-10-22 13:04:40,269 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2024-10-22 13:04:40,270 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2024-10-22 13:04:40,270 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2024-10-22 13:04:40,271 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2024-10-22 13:04:40,271 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2024-10-22 13:04:40,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2024-10-22 13:04:40,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2024-10-22 13:04:40,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2024-10-22 13:04:40,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2024-10-22 13:04:40,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2024-10-22 13:04:40,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2024-10-22 13:04:40,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2024-10-22 13:04:40,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2024-10-22 13:04:40,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2024-10-22 13:04:40,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2024-10-22 13:04:40,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2024-10-22 13:04:40,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2024-10-22 13:04:40,277 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2024-10-22 13:04:40,277 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2024-10-22 13:04:40,277 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2024-10-22 13:04:40,278 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2024-10-22 13:04:40,279 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2024-10-22 13:04:40,279 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2024-10-22 13:04:40,281 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2024-10-22 13:04:40,281 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2024-10-22 13:04:40,281 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2024-10-22 13:04:40,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2024-10-22 13:04:40,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2024-10-22 13:04:40,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2024-10-22 13:04:40,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2024-10-22 13:04:40,371 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/libvsync/semaphore.i[194352,194365] [2024-10-22 13:04:40,371 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/libvsync/semaphore.i[194435,194448] [2024-10-22 13:04:40,372 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/libvsync/semaphore.i[194492,194505] [2024-10-22 13:04:40,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-22 13:04:40,796 INFO L204 MainTranslator]: Completed translation [2024-10-22 13:04:40,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:04:40 WrapperNode [2024-10-22 13:04:40,797 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-22 13:04:40,798 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-22 13:04:40,798 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-22 13:04:40,798 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-22 13:04:40,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:04:40" (1/1) ... [2024-10-22 13:04:40,918 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:04:40" (1/1) ... [2024-10-22 13:04:40,966 INFO L138 Inliner]: procedures = 929, calls = 906, calls flagged for inlining = 817, calls inlined = 47, statements flattened = 503 [2024-10-22 13:04:40,967 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-22 13:04:40,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-22 13:04:40,968 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-22 13:04:40,968 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-22 13:04:40,978 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:04:40" (1/1) ... [2024-10-22 13:04:40,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:04:40" (1/1) ... [2024-10-22 13:04:40,984 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:04:40" (1/1) ... [2024-10-22 13:04:40,986 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:04:40" (1/1) ... [2024-10-22 13:04:41,005 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:04:40" (1/1) ... [2024-10-22 13:04:41,020 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:04:40" (1/1) ... [2024-10-22 13:04:41,027 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:04:40" (1/1) ... [2024-10-22 13:04:41,034 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:04:40" (1/1) ... [2024-10-22 13:04:41,045 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-22 13:04:41,046 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-22 13:04:41,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-22 13:04:41,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-22 13:04:41,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:04:40" (1/1) ... [2024-10-22 13:04:41,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-22 13:04:41,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 13:04:41,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-22 13:04:41,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-22 13:04:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2024-10-22 13:04:41,141 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2024-10-22 13:04:41,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-22 13:04:41,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-22 13:04:41,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-22 13:04:41,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-22 13:04:41,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-22 13:04:41,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-10-22 13:04:41,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-10-22 13:04:41,142 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2024-10-22 13:04:41,142 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2024-10-22 13:04:41,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-10-22 13:04:41,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-10-22 13:04:41,144 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-22 13:04:41,360 INFO L238 CfgBuilder]: Building ICFG [2024-10-22 13:04:41,362 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-22 13:04:41,962 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-22 13:04:41,962 INFO L287 CfgBuilder]: Performing block encoding [2024-10-22 13:04:42,275 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-22 13:04:42,275 INFO L314 CfgBuilder]: Removed 99 assume(true) statements. [2024-10-22 13:04:42,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 01:04:42 BoogieIcfgContainer [2024-10-22 13:04:42,276 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-22 13:04:42,277 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-22 13:04:42,278 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-22 13:04:42,281 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-22 13:04:42,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 01:04:38" (1/3) ... [2024-10-22 13:04:42,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49305179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 01:04:42, skipping insertion in model container [2024-10-22 13:04:42,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:04:40" (2/3) ... [2024-10-22 13:04:42,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49305179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 01:04:42, skipping insertion in model container [2024-10-22 13:04:42,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 01:04:42" (3/3) ... [2024-10-22 13:04:42,284 INFO L112 eAbstractionObserver]: Analyzing ICFG semaphore.i [2024-10-22 13:04:42,299 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-22 13:04:42,300 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-10-22 13:04:42,300 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-22 13:04:42,436 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-22 13:04:42,494 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-22 13:04:42,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-22 13:04:42,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 13:04:42,497 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-22 13:04:42,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-22 13:04:42,531 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-22 13:04:42,544 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == readerThread1of1ForFork0 ======== [2024-10-22 13:04:42,550 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;@6a3fdd80, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-22 13:04:42,551 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-22 13:04:48,899 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr1ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:04:48,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:04:48,903 INFO L85 PathProgramCache]: Analyzing trace with hash -517116200, now seen corresponding path program 1 times [2024-10-22 13:04:48,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-22 13:04:48,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2113415540] [2024-10-22 13:04:48,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:04:48,914 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:04:48,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-22 13:04:48,929 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-22 13:04:48,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-22 13:04:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:04:49,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-22 13:04:49,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:04:49,155 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-22 13:04:49,155 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-22 13:04:49,157 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-22 13:04:49,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2113415540] [2024-10-22 13:04:49,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2113415540] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:04:49,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 13:04:49,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-22 13:04:49,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488422623] [2024-10-22 13:04:49,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:04:49,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-22 13:04:49,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-22 13:04:49,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-22 13:04:49,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-22 13:04:49,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:49,196 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:04:49,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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) [2024-10-22 13:04:49,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:50,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:50,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-10-22 13:04:50,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:04:50,553 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:04:50,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:04:50,554 INFO L85 PathProgramCache]: Analyzing trace with hash 359198803, now seen corresponding path program 1 times [2024-10-22 13:04:50,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-22 13:04:50,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376248189] [2024-10-22 13:04:50,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:04:50,555 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:04:50,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-22 13:04:50,558 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-22 13:04:50,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-22 13:04:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:04:50,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-22 13:04:50,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:04:50,777 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-22 13:04:50,777 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-22 13:04:50,805 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-22 13:04:50,805 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-22 13:04:50,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376248189] [2024-10-22 13:04:50,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376248189] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-22 13:04:50,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-22 13:04:50,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-10-22 13:04:50,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614849657] [2024-10-22 13:04:50,806 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-22 13:04:50,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-22 13:04:50,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-22 13:04:50,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-22 13:04:50,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-22 13:04:50,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:50,810 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:04:50,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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) [2024-10-22 13:04:50,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:50,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:51,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:51,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-22 13:04:51,373 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONUNKNOWN (1 of 2 remaining) [2024-10-22 13:04:51,374 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-22 13:04:51,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-10-22 13:04:51,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:04:51,579 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-22 13:04:51,581 INFO L312 ceAbstractionStarter]: Result for error location readerThread1of1ForFork0 was SAFE,SAFE (1/3) [2024-10-22 13:04:51,602 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-22 13:04:51,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-22 13:04:51,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 13:04:51,604 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-22 13:04:51,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2024-10-22 13:04:51,607 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-22 13:04:51,608 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-22 13:04:51,608 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;@6a3fdd80, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-22 13:04:51,609 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-22 13:04:53,092 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-22 13:04:53,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:04:53,093 INFO L85 PathProgramCache]: Analyzing trace with hash 794193027, now seen corresponding path program 1 times [2024-10-22 13:04:53,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-22 13:04:53,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1599177960] [2024-10-22 13:04:53,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:04:53,094 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:04:53,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-22 13:04:53,095 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-22 13:04:53,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-22 13:04:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:04:53,195 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-22 13:04:53,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:04:53,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-22 13:04:53,197 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-22 13:04:53,197 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-22 13:04:53,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1599177960] [2024-10-22 13:04:53,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1599177960] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:04:53,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 13:04:53,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-22 13:04:53,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13912435] [2024-10-22 13:04:53,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:04:53,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-22 13:04:53,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-22 13:04:53,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-22 13:04:53,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-22 13:04:53,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:53,200 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:04:53,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2024-10-22 13:04:53,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:53,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:04:53,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-10-22 13:04:53,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:04:53,620 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-22 13:04:53,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:04:53,620 INFO L85 PathProgramCache]: Analyzing trace with hash -99099122, now seen corresponding path program 1 times [2024-10-22 13:04:53,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-22 13:04:53,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [954379723] [2024-10-22 13:04:53,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:04:53,621 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:04:53,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-22 13:04:53,624 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-22 13:04:53,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-10-22 13:04:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-22 13:04:53,719 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-22 13:04:53,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-22 13:04:53,790 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-22 13:04:53,791 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-22 13:04:53,791 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2024-10-22 13:04:53,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2024-10-22 13:04:53,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2024-10-22 13:04:53,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-22 13:04:53,798 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-10-22 13:04:53,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:04:53,994 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-22 13:04:53,994 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN (2/3) [2024-10-22 13:04:53,995 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-22 13:04:53,995 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-22 13:04:54,086 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-22 13:04:54,095 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-22 13:04:54,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-22 13:04:54,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 13:04:54,098 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-22 13:04:54,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2024-10-22 13:04:54,155 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-22 13:04:54,155 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == readerThread1of2ForFork0 ======== [2024-10-22 13:04:54,155 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;@6a3fdd80, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-22 13:04:54,156 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-22 13:05:08,446 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr1ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:05:08,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:05:08,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1126091576, now seen corresponding path program 1 times [2024-10-22 13:05:08,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-22 13:05:08,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136388589] [2024-10-22 13:05:08,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:05:08,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:05:08,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-22 13:05:08,453 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-22 13:05:08,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-10-22 13:05:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:05:08,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-22 13:05:08,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:05:08,735 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-22 13:05:08,735 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-22 13:05:08,735 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-22 13:05:08,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136388589] [2024-10-22 13:05:08,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136388589] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:05:08,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 13:05:08,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-22 13:05:08,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473534501] [2024-10-22 13:05:08,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:05:08,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-22 13:05:08,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-22 13:05:08,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-22 13:05:08,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-22 13:05:08,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:08,738 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:05:08,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 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) [2024-10-22 13:05:08,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:12,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:12,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-10-22 13:05:12,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:05:12,691 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:05:12,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:05:12,691 INFO L85 PathProgramCache]: Analyzing trace with hash 2026219832, now seen corresponding path program 1 times [2024-10-22 13:05:12,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-22 13:05:12,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685534912] [2024-10-22 13:05:12,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:05:12,692 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:05:12,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-22 13:05:12,695 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-22 13:05:12,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-10-22 13:05:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:05:12,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-22 13:05:12,982 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:05:13,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-22 13:05:13,146 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-10-22 13:05:13,147 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-22 13:05:13,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-22 13:05:13,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685534912] [2024-10-22 13:05:13,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685534912] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:05:13,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 13:05:13,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-22 13:05:13,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340714767] [2024-10-22 13:05:13,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:05:13,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-22 13:05:13,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-22 13:05:13,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-22 13:05:13,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-22 13:05:13,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:13,154 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:05:13,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 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) [2024-10-22 13:05:13,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:13,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:15,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:15,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-22 13:05:15,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2024-10-22 13:05:15,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:05:15,250 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:05:15,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:05:15,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1108829909, now seen corresponding path program 1 times [2024-10-22 13:05:15,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-22 13:05:15,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1271521950] [2024-10-22 13:05:15,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:05:15,251 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:05:15,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-22 13:05:15,252 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-22 13:05:15,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-10-22 13:05:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:05:15,553 INFO L255 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-22 13:05:15,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:05:15,608 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 35 proven. 5 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2024-10-22 13:05:15,608 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-22 13:05:15,661 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 35 proven. 5 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2024-10-22 13:05:15,661 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-22 13:05:15,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1271521950] [2024-10-22 13:05:15,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1271521950] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-22 13:05:15,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-22 13:05:15,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-22 13:05:15,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440120925] [2024-10-22 13:05:15,662 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-22 13:05:15,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-22 13:05:15,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-22 13:05:15,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-22 13:05:15,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-22 13:05:15,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:15,664 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:05:15,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.875) internal successors, (183), 8 states have internal predecessors, (183), 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) [2024-10-22 13:05:15,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:15,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-22 13:05:15,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:17,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:17,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-22 13:05:17,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-22 13:05:17,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-10-22 13:05:17,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:05:17,278 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:05:17,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:05:17,278 INFO L85 PathProgramCache]: Analyzing trace with hash 882031754, now seen corresponding path program 1 times [2024-10-22 13:05:17,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-22 13:05:17,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836320867] [2024-10-22 13:05:17,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:05:17,279 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:05:17,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-22 13:05:17,280 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-22 13:05:17,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-10-22 13:05:17,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:05:17,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-22 13:05:17,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:05:17,589 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-10-22 13:05:17,590 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-22 13:05:17,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-22 13:05:17,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836320867] [2024-10-22 13:05:17,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836320867] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:05:17,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 13:05:17,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-22 13:05:17,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031423429] [2024-10-22 13:05:17,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:05:17,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-22 13:05:17,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-22 13:05:17,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-22 13:05:17,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-22 13:05:17,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:17,592 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:05:17,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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) [2024-10-22 13:05:17,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:17,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-22 13:05:17,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-22 13:05:17,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:18,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:18,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-22 13:05:18,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-22 13:05:18,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:18,116 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-10-22 13:05:18,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:05:18,303 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:05:18,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:05:18,304 INFO L85 PathProgramCache]: Analyzing trace with hash 45623513, now seen corresponding path program 1 times [2024-10-22 13:05:18,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-22 13:05:18,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1443542205] [2024-10-22 13:05:18,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:05:18,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:05:18,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-22 13:05:18,307 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-22 13:05:18,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-10-22 13:05:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:05:18,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 1889 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-22 13:05:18,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:05:19,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-22 13:05:19,388 INFO L134 CoverageAnalysis]: Checked inductivity of 7251 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 6579 trivial. 0 not checked. [2024-10-22 13:05:19,389 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-22 13:05:19,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-22 13:05:19,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1443542205] [2024-10-22 13:05:19,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1443542205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:05:19,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 13:05:19,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-22 13:05:19,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972820673] [2024-10-22 13:05:19,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:05:19,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-22 13:05:19,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-22 13:05:19,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-22 13:05:19,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-22 13:05:19,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:19,393 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:05:19,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.5) internal successors, (185), 10 states have internal predecessors, (185), 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) [2024-10-22 13:05:19,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:19,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-22 13:05:19,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-22 13:05:19,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:19,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:20,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:20,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-22 13:05:20,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-22 13:05:20,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:20,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-22 13:05:20,745 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-10-22 13:05:20,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:05:20,922 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:05:20,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:05:20,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1484559802, now seen corresponding path program 1 times [2024-10-22 13:05:20,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-22 13:05:20,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394398548] [2024-10-22 13:05:20,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:05:20,924 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:05:20,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-22 13:05:20,925 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-22 13:05:20,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-10-22 13:05:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:05:21,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 1638 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-10-22 13:05:21,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:05:21,912 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 23 treesize of output 11 [2024-10-22 13:05:21,965 INFO L134 CoverageAnalysis]: Checked inductivity of 5176 backedges. 634 proven. 0 refuted. 0 times theorem prover too weak. 4542 trivial. 0 not checked. [2024-10-22 13:05:21,965 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-22 13:05:21,966 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-22 13:05:21,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394398548] [2024-10-22 13:05:21,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394398548] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:05:21,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 13:05:21,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-22 13:05:21,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414150325] [2024-10-22 13:05:21,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:05:21,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-22 13:05:21,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-22 13:05:21,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-22 13:05:21,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2024-10-22 13:05:21,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:21,968 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:05:21,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.466666666666667) internal successors, (187), 15 states have internal predecessors, (187), 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) [2024-10-22 13:05:21,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:21,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-22 13:05:21,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-22 13:05:21,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:21,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-22 13:05:21,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:24,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:24,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-22 13:05:24,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-22 13:05:24,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:24,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-22 13:05:24,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-22 13:05:24,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2024-10-22 13:05:24,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:05:24,252 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:05:24,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:05:24,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1257109439, now seen corresponding path program 1 times [2024-10-22 13:05:24,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-22 13:05:24,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1056604517] [2024-10-22 13:05:24,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:05:24,253 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:05:24,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-22 13:05:24,255 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-22 13:05:24,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-10-22 13:05:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:05:24,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 1660 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-22 13:05:24,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:05:24,845 INFO L134 CoverageAnalysis]: Checked inductivity of 5329 backedges. 688 proven. 0 refuted. 0 times theorem prover too weak. 4641 trivial. 0 not checked. [2024-10-22 13:05:24,846 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-22 13:05:24,846 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-22 13:05:24,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1056604517] [2024-10-22 13:05:24,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1056604517] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:05:24,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 13:05:24,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-22 13:05:24,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721159142] [2024-10-22 13:05:24,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:05:24,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-22 13:05:24,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-22 13:05:24,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-22 13:05:24,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-22 13:05:24,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:24,848 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:05:24,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2024-10-22 13:05:24,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:24,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-22 13:05:24,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-22 13:05:24,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:24,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-22 13:05:24,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-10-22 13:05:24,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:25,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:25,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-22 13:05:25,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-22 13:05:25,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:25,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-22 13:05:25,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-22 13:05:25,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:25,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2024-10-22 13:05:25,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:05:25,370 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:05:25,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:05:25,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1508963665, now seen corresponding path program 1 times [2024-10-22 13:05:25,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-22 13:05:25,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [411627741] [2024-10-22 13:05:25,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:05:25,371 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:05:25,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-22 13:05:25,373 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-22 13:05:25,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-10-22 13:05:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:05:25,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-10-22 13:05:25,724 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:05:26,570 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 23 treesize of output 11 [2024-10-22 13:05:26,622 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 116 proven. 27 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-10-22 13:05:26,622 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-22 13:05:27,171 INFO L349 Elim1Store]: treesize reduction 4, result has 88.2 percent of original size [2024-10-22 13:05:27,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 36 [2024-10-22 13:05:27,471 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 117 proven. 26 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-10-22 13:05:27,471 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-22 13:05:27,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [411627741] [2024-10-22 13:05:27,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [411627741] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-22 13:05:27,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-22 13:05:27,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 31 [2024-10-22 13:05:27,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653485335] [2024-10-22 13:05:27,472 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-22 13:05:27,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-22 13:05:27,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-22 13:05:27,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-22 13:05:27,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=826, Unknown=0, NotChecked=0, Total=930 [2024-10-22 13:05:27,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:27,474 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:05:27,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 10.129032258064516) internal successors, (314), 31 states have internal predecessors, (314), 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) [2024-10-22 13:05:27,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:27,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-22 13:05:27,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-22 13:05:27,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:27,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-22 13:05:27,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-10-22 13:05:27,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:27,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:31,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:31,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-22 13:05:31,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-22 13:05:31,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:31,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-22 13:05:31,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-22 13:05:31,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:31,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-22 13:05:31,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2024-10-22 13:05:32,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:05:32,158 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:05:32,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:05:32,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1074598674, now seen corresponding path program 1 times [2024-10-22 13:05:32,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-22 13:05:32,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695729574] [2024-10-22 13:05:32,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:05:32,159 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:05:32,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-22 13:05:32,160 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-22 13:05:32,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-10-22 13:05:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:05:32,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-10-22 13:05:32,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:05:33,121 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 23 treesize of output 11 [2024-10-22 13:05:33,186 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 127 proven. 40 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-10-22 13:05:33,186 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-22 13:05:33,517 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 157 proven. 5 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-10-22 13:05:33,518 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-22 13:05:33,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695729574] [2024-10-22 13:05:33,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1695729574] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-22 13:05:33,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-22 13:05:33,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12] total 27 [2024-10-22 13:05:33,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243891170] [2024-10-22 13:05:33,519 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-22 13:05:33,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-22 13:05:33,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-22 13:05:33,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-22 13:05:33,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=637, Unknown=0, NotChecked=0, Total=702 [2024-10-22 13:05:33,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:33,520 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:05:33,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 12.25925925925926) internal successors, (331), 27 states have internal predecessors, (331), 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) [2024-10-22 13:05:33,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:33,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-22 13:05:33,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-22 13:05:33,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:33,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-22 13:05:33,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-10-22 13:05:33,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:33,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-10-22 13:05:33,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:38,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:38,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-22 13:05:38,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-22 13:05:38,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:38,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-22 13:05:38,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-22 13:05:38,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:38,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-22 13:05:38,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-10-22 13:05:38,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2024-10-22 13:05:38,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:05:38,770 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:05:38,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:05:38,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1805520912, now seen corresponding path program 1 times [2024-10-22 13:05:38,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-22 13:05:38,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1744890320] [2024-10-22 13:05:38,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 13:05:38,771 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:05:38,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-22 13:05:38,773 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-22 13:05:38,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-10-22 13:05:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 13:05:39,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-22 13:05:39,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:05:39,171 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 253 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-10-22 13:05:39,172 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-22 13:05:39,172 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-22 13:05:39,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1744890320] [2024-10-22 13:05:39,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1744890320] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:05:39,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 13:05:39,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-22 13:05:39,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052880718] [2024-10-22 13:05:39,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:05:39,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-22 13:05:39,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-22 13:05:39,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-22 13:05:39,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-22 13:05:39,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:39,174 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:05:39,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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) [2024-10-22 13:05:39,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:39,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-22 13:05:39,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-22 13:05:39,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:39,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-22 13:05:39,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-10-22 13:05:39,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:39,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-10-22 13:05:39,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-10-22 13:05:39,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:39,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:39,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-22 13:05:39,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-22 13:05:39,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:39,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-22 13:05:39,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-22 13:05:39,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:39,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-22 13:05:39,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-10-22 13:05:39,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:39,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-10-22 13:05:39,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:05:39,704 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting readerErr0ASSERT_VIOLATIONUNKNOWN === [readerErr0ASSERT_VIOLATIONUNKNOWN, readerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-22 13:05:39,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 13:05:39,705 INFO L85 PathProgramCache]: Analyzing trace with hash -748633860, now seen corresponding path program 2 times [2024-10-22 13:05:39,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-22 13:05:39,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [770651261] [2024-10-22 13:05:39,705 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-22 13:05:39,705 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-22 13:05:39,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-22 13:05:39,706 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-22 13:05:39,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-10-22 13:05:39,909 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-22 13:05:39,910 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-22 13:05:39,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-22 13:05:39,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 13:05:39,926 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2024-10-22 13:05:39,926 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-22 13:05:39,926 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-22 13:05:39,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [770651261] [2024-10-22 13:05:39,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [770651261] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 13:05:39,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 13:05:39,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-22 13:05:39,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110681880] [2024-10-22 13:05:39,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 13:05:39,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-22 13:05:39,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-22 13:05:39,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-22 13:05:39,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-22 13:05:39,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:39,928 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 13:05:39,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2024-10-22 13:05:39,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 13:05:39,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-22 13:05:39,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-22 13:05:39,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:39,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-22 13:05:39,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-10-22 13:05:39,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:39,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-10-22 13:05:39,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-10-22 13:05:39,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 13:05:39,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.