./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/libvsync/rec_mcslock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d63e19-fa85-4121-879a-1a728b9eaa27/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d63e19-fa85-4121-879a-1a728b9eaa27/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d63e19-fa85-4121-879a-1a728b9eaa27/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d63e19-fa85-4121-879a-1a728b9eaa27/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/libvsync/rec_mcslock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d63e19-fa85-4121-879a-1a728b9eaa27/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d63e19-fa85-4121-879a-1a728b9eaa27/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 89f4ecf17cdd703d57fdf977621016996b601a0e10c2b1b5ffeae48ee5db4f63 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:15:24,696 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:15:24,796 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d63e19-fa85-4121-879a-1a728b9eaa27/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-13 15:15:24,804 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:15:24,804 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:15:24,844 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:15:24,845 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:15:24,845 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:15:24,847 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:15:24,850 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:15:24,850 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:15:24,850 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:15:24,851 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:15:24,851 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:15:24,851 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:15:24,851 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:15:24,851 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:15:24,851 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:15:24,851 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:15:24,852 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:15:24,852 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 15:15:24,852 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 15:15:24,852 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 15:15:24,852 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:15:24,852 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:15:24,852 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:15:24,852 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:15:24,852 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:15:24,852 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:15:24,852 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:15:24,853 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:15:24,853 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:15:24,853 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:15:24,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:15:24,853 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:15:24,853 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:15:24,853 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:15:24,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:15:24,856 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:15:24,856 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:15:24,856 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:15:24,856 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:15:24,857 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d63e19-fa85-4121-879a-1a728b9eaa27/bin/uautomizer-verify-qhAvR1uOyd 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89f4ecf17cdd703d57fdf977621016996b601a0e10c2b1b5ffeae48ee5db4f63 [2024-11-13 15:15:25,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:15:25,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:15:25,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:15:25,237 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:15:25,238 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:15:25,239 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d63e19-fa85-4121-879a-1a728b9eaa27/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/libvsync/rec_mcslock.i Unable to find full path for "g++" [2024-11-13 15:15:27,130 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:15:27,610 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:15:27,612 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d63e19-fa85-4121-879a-1a728b9eaa27/sv-benchmarks/c/libvsync/rec_mcslock.i [2024-11-13 15:15:27,683 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d63e19-fa85-4121-879a-1a728b9eaa27/bin/uautomizer-verify-qhAvR1uOyd/data/07c3ee89a/0ba2e434321c495daa1a35a002995a4d/FLAG18833ccb9 [2024-11-13 15:15:27,703 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d63e19-fa85-4121-879a-1a728b9eaa27/bin/uautomizer-verify-qhAvR1uOyd/data/07c3ee89a/0ba2e434321c495daa1a35a002995a4d [2024-11-13 15:15:27,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:15:27,707 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:15:27,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:15:27,709 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:15:27,714 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:15:27,715 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:15:27" (1/1) ... [2024-11-13 15:15:27,715 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ba496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:27, skipping insertion in model container [2024-11-13 15:15:27,716 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:15:27" (1/1) ... [2024-11-13 15:15:27,806 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:15:30,361 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:15:30,372 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:15:30,376 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:15:30,383 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:15:30,384 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:15:30,534 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:15:30,538 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:15:30,542 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:15:30,542 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:15:31,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:15:31,021 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:15:31,185 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2024-11-13 15:15:31,187 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2024-11-13 15:15:31,188 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2024-11-13 15:15:31,189 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2024-11-13 15:15:31,190 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2024-11-13 15:15:31,190 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2024-11-13 15:15:31,192 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2024-11-13 15:15:31,193 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2024-11-13 15:15:31,193 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2024-11-13 15:15:31,194 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2024-11-13 15:15:31,194 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2024-11-13 15:15:31,195 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2024-11-13 15:15:31,196 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2024-11-13 15:15:31,197 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2024-11-13 15:15:31,197 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2024-11-13 15:15:31,198 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2024-11-13 15:15:31,198 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2024-11-13 15:15:31,199 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2024-11-13 15:15:31,199 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2024-11-13 15:15:31,199 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2024-11-13 15:15:31,200 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2024-11-13 15:15:31,200 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2024-11-13 15:15:31,201 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2024-11-13 15:15:31,201 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2024-11-13 15:15:31,201 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2024-11-13 15:15:31,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2024-11-13 15:15:31,203 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2024-11-13 15:15:31,203 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2024-11-13 15:15:31,204 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2024-11-13 15:15:31,205 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2024-11-13 15:15:31,205 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2024-11-13 15:15:31,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2024-11-13 15:15:31,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2024-11-13 15:15:31,207 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2024-11-13 15:15:31,207 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2024-11-13 15:15:31,208 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2024-11-13 15:15:31,209 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2024-11-13 15:15:31,209 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2024-11-13 15:15:31,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2024-11-13 15:15:31,211 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2024-11-13 15:15:31,212 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2024-11-13 15:15:31,212 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2024-11-13 15:15:31,213 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2024-11-13 15:15:31,214 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2024-11-13 15:15:31,214 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2024-11-13 15:15:31,217 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2024-11-13 15:15:31,218 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2024-11-13 15:15:31,220 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2024-11-13 15:15:31,222 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2024-11-13 15:15:31,223 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2024-11-13 15:15:31,224 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2024-11-13 15:15:31,225 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2024-11-13 15:15:31,226 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2024-11-13 15:15:31,227 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2024-11-13 15:15:31,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2024-11-13 15:15:31,229 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2024-11-13 15:15:31,229 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2024-11-13 15:15:31,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2024-11-13 15:15:31,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2024-11-13 15:15:31,233 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2024-11-13 15:15:31,233 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2024-11-13 15:15:31,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2024-11-13 15:15:31,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2024-11-13 15:15:31,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2024-11-13 15:15:31,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2024-11-13 15:15:31,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2024-11-13 15:15:31,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2024-11-13 15:15:31,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2024-11-13 15:15:31,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2024-11-13 15:15:31,243 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2024-11-13 15:15:31,243 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2024-11-13 15:15:31,244 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2024-11-13 15:15:31,245 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2024-11-13 15:15:31,246 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2024-11-13 15:15:31,247 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2024-11-13 15:15:31,247 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2024-11-13 15:15:31,248 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2024-11-13 15:15:31,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2024-11-13 15:15:31,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2024-11-13 15:15:31,251 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2024-11-13 15:15:31,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2024-11-13 15:15:31,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2024-11-13 15:15:31,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2024-11-13 15:15:31,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2024-11-13 15:15:31,255 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2024-11-13 15:15:31,255 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2024-11-13 15:15:31,256 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2024-11-13 15:15:31,256 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2024-11-13 15:15:31,258 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2024-11-13 15:15:31,259 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2024-11-13 15:15:31,259 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2024-11-13 15:15:31,260 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2024-11-13 15:15:31,262 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2024-11-13 15:15:31,262 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2024-11-13 15:15:31,263 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2024-11-13 15:15:31,263 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2024-11-13 15:15:31,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2024-11-13 15:15:31,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2024-11-13 15:15:31,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2024-11-13 15:15:31,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2024-11-13 15:15:31,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:15:31,678 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:15:31,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:31 WrapperNode [2024-11-13 15:15:31,679 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:15:31,680 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:15:31,680 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:15:31,680 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:15:31,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:31" (1/1) ... [2024-11-13 15:15:31,761 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:31" (1/1) ... [2024-11-13 15:15:31,838 INFO L138 Inliner]: procedures = 924, calls = 955, calls flagged for inlining = 838, calls inlined = 56, statements flattened = 474 [2024-11-13 15:15:31,839 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:15:31,839 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:15:31,839 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:15:31,840 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:15:31,852 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:31" (1/1) ... [2024-11-13 15:15:31,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:31" (1/1) ... [2024-11-13 15:15:31,858 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:31" (1/1) ... [2024-11-13 15:15:31,930 INFO L175 MemorySlicer]: Split 33 memory accesses to 3 slices as follows [2, 2, 29]. 88 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 0, 9]. The 11 writes are split as follows [0, 1, 10]. [2024-11-13 15:15:31,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:31" (1/1) ... [2024-11-13 15:15:31,931 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:31" (1/1) ... [2024-11-13 15:15:31,957 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:31" (1/1) ... [2024-11-13 15:15:31,969 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:31" (1/1) ... [2024-11-13 15:15:31,976 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:31" (1/1) ... [2024-11-13 15:15:31,978 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:31" (1/1) ... [2024-11-13 15:15:31,993 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:15:31,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:15:31,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:15:31,994 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:15:31,995 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:31" (1/1) ... [2024-11-13 15:15:32,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:15:32,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d63e19-fa85-4121-879a-1a728b9eaa27/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:32,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d63e19-fa85-4121-879a-1a728b9eaa27/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:15:32,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d63e19-fa85-4121-879a-1a728b9eaa27/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:15:32,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 15:15:32,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 15:15:32,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 15:15:32,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:15:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 15:15:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 15:15:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 15:15:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:15:32,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:15:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure run [2024-11-13 15:15:32,079 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2024-11-13 15:15:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 15:15:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-13 15:15:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-13 15:15:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-13 15:15:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 15:15:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 15:15:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 15:15:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 15:15:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-13 15:15:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-13 15:15:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-13 15:15:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:15:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 15:15:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 15:15:32,082 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 15:15:32,310 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:15:32,312 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:15:33,306 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:15:33,306 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:15:33,877 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:15:33,880 INFO L316 CfgBuilder]: Removed 71 assume(true) statements. [2024-11-13 15:15:33,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:15:33 BoogieIcfgContainer [2024-11-13 15:15:33,881 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:15:33,884 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:15:33,884 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:15:33,889 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:15:33,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:15:27" (1/3) ... [2024-11-13 15:15:33,891 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1311759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:15:33, skipping insertion in model container [2024-11-13 15:15:33,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:15:31" (2/3) ... [2024-11-13 15:15:33,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1311759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:15:33, skipping insertion in model container [2024-11-13 15:15:33,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:15:33" (3/3) ... [2024-11-13 15:15:33,895 INFO L112 eAbstractionObserver]: Analyzing ICFG rec_mcslock.i [2024-11-13 15:15:33,916 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:15:33,919 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG rec_mcslock.i that has 2 procedures, 186 locations, 1 initial locations, 39 loop locations, and 48 error locations. [2024-11-13 15:15:33,920 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:15:34,193 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 15:15:34,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 189 places, 260 transitions, 527 flow [2024-11-13 15:15:34,356 INFO L124 PetriNetUnfolderBase]: 87/304 cut-off events. [2024-11-13 15:15:34,359 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:15:34,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 304 events. 87/304 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1074 event pairs, 0 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 244. Up to 6 conditions per place. [2024-11-13 15:15:34,370 INFO L82 GeneralOperation]: Start removeDead. Operand has 189 places, 260 transitions, 527 flow [2024-11-13 15:15:34,381 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 189 places, 260 transitions, 527 flow [2024-11-13 15:15:34,399 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:15:34,418 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@7929acd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:15:34,422 INFO L334 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2024-11-13 15:15:34,429 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:15:34,430 INFO L124 PetriNetUnfolderBase]: 5/15 cut-off events. [2024-11-13 15:15:34,431 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:15:34,431 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:15:34,432 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 15:15:34,432 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 87 more)] === [2024-11-13 15:15:34,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:34,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1564018297, now seen corresponding path program 1 times [2024-11-13 15:15:34,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:34,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51801574] [2024-11-13 15:15:34,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:34,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:34,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:34,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:15:34,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:34,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51801574] [2024-11-13 15:15:34,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51801574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:34,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:34,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:15:34,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977697330] [2024-11-13 15:15:34,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:34,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:15:34,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:34,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:15:34,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:15:34,739 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 260 [2024-11-13 15:15:34,743 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 260 transitions, 527 flow. Second operand has 2 states, 2 states have (on average 72.0) internal successors, (144), 2 states have internal predecessors, (144), 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) [2024-11-13 15:15:34,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:15:34,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 260 [2024-11-13 15:15:34,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:15:35,606 INFO L124 PetriNetUnfolderBase]: 1073/2690 cut-off events. [2024-11-13 15:15:35,607 INFO L125 PetriNetUnfolderBase]: For 6/8 co-relation queries the response was YES. [2024-11-13 15:15:35,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4827 conditions, 2690 events. 1073/2690 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 19137 event pairs, 940 based on Foata normal form. 1298/3394 useless extension candidates. Maximal degree in co-relation 4763. Up to 2132 conditions per place. [2024-11-13 15:15:35,632 INFO L140 encePairwiseOnDemand]: 195/260 looper letters, 122 selfloop transitions, 0 changer transitions 0/192 dead transitions. [2024-11-13 15:15:35,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 192 transitions, 635 flow [2024-11-13 15:15:35,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:15:35,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-13 15:15:35,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 327 transitions. [2024-11-13 15:15:35,654 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6288461538461538 [2024-11-13 15:15:35,658 INFO L175 Difference]: Start difference. First operand has 189 places, 260 transitions, 527 flow. Second operand 2 states and 327 transitions. [2024-11-13 15:15:35,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 192 transitions, 635 flow [2024-11-13 15:15:35,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 192 transitions, 635 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:15:35,674 INFO L231 Difference]: Finished difference. Result has 183 places, 192 transitions, 391 flow [2024-11-13 15:15:35,677 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=391, PETRI_PLACES=183, PETRI_TRANSITIONS=192} [2024-11-13 15:15:35,682 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, -6 predicate places. [2024-11-13 15:15:35,682 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 192 transitions, 391 flow [2024-11-13 15:15:35,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 72.0) internal successors, (144), 2 states have internal predecessors, (144), 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) [2024-11-13 15:15:35,682 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:15:35,682 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:35,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:15:35,684 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 87 more)] === [2024-11-13 15:15:35,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:35,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1662446186, now seen corresponding path program 1 times [2024-11-13 15:15:35,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:35,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121633514] [2024-11-13 15:15:35,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:35,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:35,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:15:35,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:35,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121633514] [2024-11-13 15:15:35,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121633514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:35,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:35,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 15:15:35,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758301950] [2024-11-13 15:15:35,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:35,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:15:35,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:35,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:15:35,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:15:35,939 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 260 [2024-11-13 15:15:35,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 192 transitions, 391 flow. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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) [2024-11-13 15:15:35,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:15:35,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 260 [2024-11-13 15:15:35,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:15:37,055 INFO L124 PetriNetUnfolderBase]: 1287/3175 cut-off events. [2024-11-13 15:15:37,056 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:15:37,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5723 conditions, 3175 events. 1287/3175 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 23323 event pairs, 942 based on Foata normal form. 0/2531 useless extension candidates. Maximal degree in co-relation 5719. Up to 2131 conditions per place. [2024-11-13 15:15:37,080 INFO L140 encePairwiseOnDemand]: 256/260 looper letters, 228 selfloop transitions, 2 changer transitions 0/296 dead transitions. [2024-11-13 15:15:37,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 296 transitions, 1059 flow [2024-11-13 15:15:37,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:15:37,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:15:37,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 430 transitions. [2024-11-13 15:15:37,084 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5512820512820513 [2024-11-13 15:15:37,084 INFO L175 Difference]: Start difference. First operand has 183 places, 192 transitions, 391 flow. Second operand 3 states and 430 transitions. [2024-11-13 15:15:37,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 296 transitions, 1059 flow [2024-11-13 15:15:37,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 296 transitions, 1059 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:15:37,100 INFO L231 Difference]: Finished difference. Result has 183 places, 190 transitions, 391 flow [2024-11-13 15:15:37,100 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=391, PETRI_PLACES=183, PETRI_TRANSITIONS=190} [2024-11-13 15:15:37,102 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, -6 predicate places. [2024-11-13 15:15:37,102 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 190 transitions, 391 flow [2024-11-13 15:15:37,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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) [2024-11-13 15:15:37,103 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:15:37,103 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:37,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:15:37,103 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 87 more)] === [2024-11-13 15:15:37,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:37,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1662446187, now seen corresponding path program 1 times [2024-11-13 15:15:37,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:37,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610184445] [2024-11-13 15:15:37,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:37,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:37,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:15:37,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:37,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610184445] [2024-11-13 15:15:37,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610184445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:37,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:37,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:15:37,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226760497] [2024-11-13 15:15:37,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:37,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:15:37,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:37,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:15:37,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:15:37,506 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 260 [2024-11-13 15:15:37,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 190 transitions, 391 flow. Second operand has 4 states, 4 states have (on average 69.25) internal successors, (277), 4 states have internal predecessors, (277), 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) [2024-11-13 15:15:37,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:15:37,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 260 [2024-11-13 15:15:37,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:15:38,674 INFO L124 PetriNetUnfolderBase]: 1196/4035 cut-off events. [2024-11-13 15:15:38,674 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-11-13 15:15:38,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6508 conditions, 4035 events. 1196/4035 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 35814 event pairs, 200 based on Foata normal form. 0/3367 useless extension candidates. Maximal degree in co-relation 6503. Up to 1440 conditions per place. [2024-11-13 15:15:38,701 INFO L140 encePairwiseOnDemand]: 253/260 looper letters, 331 selfloop transitions, 5 changer transitions 0/402 dead transitions. [2024-11-13 15:15:38,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 402 transitions, 1487 flow [2024-11-13 15:15:38,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:15:38,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:15:38,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 610 transitions. [2024-11-13 15:15:38,707 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5865384615384616 [2024-11-13 15:15:38,707 INFO L175 Difference]: Start difference. First operand has 183 places, 190 transitions, 391 flow. Second operand 4 states and 610 transitions. [2024-11-13 15:15:38,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 402 transitions, 1487 flow [2024-11-13 15:15:38,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 402 transitions, 1483 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:15:38,731 INFO L231 Difference]: Finished difference. Result has 185 places, 190 transitions, 409 flow [2024-11-13 15:15:38,733 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=409, PETRI_PLACES=185, PETRI_TRANSITIONS=190} [2024-11-13 15:15:38,734 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, -4 predicate places. [2024-11-13 15:15:38,735 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 190 transitions, 409 flow [2024-11-13 15:15:38,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.25) internal successors, (277), 4 states have internal predecessors, (277), 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) [2024-11-13 15:15:38,735 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:15:38,736 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:38,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:15:38,736 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 87 more)] === [2024-11-13 15:15:38,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:38,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1921801622, now seen corresponding path program 1 times [2024-11-13 15:15:38,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:38,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338431792] [2024-11-13 15:15:38,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:38,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:38,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:15:38,817 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:15:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:15:38,896 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:15:38,899 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:15:38,901 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (89 of 90 remaining) [2024-11-13 15:15:38,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (88 of 90 remaining) [2024-11-13 15:15:38,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (87 of 90 remaining) [2024-11-13 15:15:38,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (86 of 90 remaining) [2024-11-13 15:15:38,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (85 of 90 remaining) [2024-11-13 15:15:38,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (84 of 90 remaining) [2024-11-13 15:15:38,904 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (83 of 90 remaining) [2024-11-13 15:15:38,904 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (82 of 90 remaining) [2024-11-13 15:15:38,904 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (81 of 90 remaining) [2024-11-13 15:15:38,904 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (80 of 90 remaining) [2024-11-13 15:15:38,904 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONMEMORY_LEAK (79 of 90 remaining) [2024-11-13 15:15:38,904 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (78 of 90 remaining) [2024-11-13 15:15:38,904 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 90 remaining) [2024-11-13 15:15:38,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 90 remaining) [2024-11-13 15:15:38,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 90 remaining) [2024-11-13 15:15:38,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 90 remaining) [2024-11-13 15:15:38,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 90 remaining) [2024-11-13 15:15:38,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 90 remaining) [2024-11-13 15:15:38,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 90 remaining) [2024-11-13 15:15:38,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 90 remaining) [2024-11-13 15:15:38,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 90 remaining) [2024-11-13 15:15:38,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 90 remaining) [2024-11-13 15:15:38,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 90 remaining) [2024-11-13 15:15:38,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 90 remaining) [2024-11-13 15:15:38,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 90 remaining) [2024-11-13 15:15:38,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 90 remaining) [2024-11-13 15:15:38,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 90 remaining) [2024-11-13 15:15:38,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 90 remaining) [2024-11-13 15:15:38,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 90 remaining) [2024-11-13 15:15:38,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 90 remaining) [2024-11-13 15:15:38,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 90 remaining) [2024-11-13 15:15:38,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 90 remaining) [2024-11-13 15:15:38,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 90 remaining) [2024-11-13 15:15:38,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 90 remaining) [2024-11-13 15:15:38,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 90 remaining) [2024-11-13 15:15:38,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 90 remaining) [2024-11-13 15:15:38,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 90 remaining) [2024-11-13 15:15:38,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 90 remaining) [2024-11-13 15:15:38,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 90 remaining) [2024-11-13 15:15:38,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 90 remaining) [2024-11-13 15:15:38,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 90 remaining) [2024-11-13 15:15:38,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 90 remaining) [2024-11-13 15:15:38,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 90 remaining) [2024-11-13 15:15:38,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 90 remaining) [2024-11-13 15:15:38,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 90 remaining) [2024-11-13 15:15:38,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 90 remaining) [2024-11-13 15:15:38,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 90 remaining) [2024-11-13 15:15:38,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 90 remaining) [2024-11-13 15:15:38,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 90 remaining) [2024-11-13 15:15:38,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 90 remaining) [2024-11-13 15:15:38,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 90 remaining) [2024-11-13 15:15:38,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONMEMORY_LEAK (38 of 90 remaining) [2024-11-13 15:15:38,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 90 remaining) [2024-11-13 15:15:38,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 90 remaining) [2024-11-13 15:15:38,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 90 remaining) [2024-11-13 15:15:38,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 90 remaining) [2024-11-13 15:15:38,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 90 remaining) [2024-11-13 15:15:38,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 90 remaining) [2024-11-13 15:15:38,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 90 remaining) [2024-11-13 15:15:38,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 90 remaining) [2024-11-13 15:15:38,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 90 remaining) [2024-11-13 15:15:38,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 90 remaining) [2024-11-13 15:15:38,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 90 remaining) [2024-11-13 15:15:38,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 90 remaining) [2024-11-13 15:15:38,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 90 remaining) [2024-11-13 15:15:38,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 90 remaining) [2024-11-13 15:15:38,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 90 remaining) [2024-11-13 15:15:38,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 90 remaining) [2024-11-13 15:15:38,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 90 remaining) [2024-11-13 15:15:38,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 90 remaining) [2024-11-13 15:15:38,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 90 remaining) [2024-11-13 15:15:38,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 90 remaining) [2024-11-13 15:15:38,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 90 remaining) [2024-11-13 15:15:38,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 90 remaining) [2024-11-13 15:15:38,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 90 remaining) [2024-11-13 15:15:38,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 90 remaining) [2024-11-13 15:15:38,915 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 90 remaining) [2024-11-13 15:15:38,915 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 90 remaining) [2024-11-13 15:15:38,915 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 90 remaining) [2024-11-13 15:15:38,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 90 remaining) [2024-11-13 15:15:38,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 90 remaining) [2024-11-13 15:15:38,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 90 remaining) [2024-11-13 15:15:38,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 90 remaining) [2024-11-13 15:15:38,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 90 remaining) [2024-11-13 15:15:38,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 90 remaining) [2024-11-13 15:15:38,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 90 remaining) [2024-11-13 15:15:38,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 90 remaining) [2024-11-13 15:15:38,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 90 remaining) [2024-11-13 15:15:38,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 90 remaining) [2024-11-13 15:15:38,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 90 remaining) [2024-11-13 15:15:38,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:15:38,918 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-13 15:15:38,923 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 15:15:38,923 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-13 15:15:39,174 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 15:15:39,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 336 places, 461 transitions, 938 flow [2024-11-13 15:15:39,293 INFO L124 PetriNetUnfolderBase]: 165/582 cut-off events. [2024-11-13 15:15:39,293 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-13 15:15:39,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 582 events. 165/582 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2830 event pairs, 0 based on Foata normal form. 0/305 useless extension candidates. Maximal degree in co-relation 474. Up to 12 conditions per place. [2024-11-13 15:15:39,303 INFO L82 GeneralOperation]: Start removeDead. Operand has 336 places, 461 transitions, 938 flow [2024-11-13 15:15:39,327 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 336 places, 461 transitions, 938 flow [2024-11-13 15:15:39,331 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:15:39,332 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@7929acd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:15:39,332 INFO L334 AbstractCegarLoop]: Starting to check reachability of 131 error locations. [2024-11-13 15:15:39,334 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:15:39,334 INFO L124 PetriNetUnfolderBase]: 5/15 cut-off events. [2024-11-13 15:15:39,334 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:15:39,334 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:15:39,334 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 15:15:39,335 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 128 more)] === [2024-11-13 15:15:39,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:39,335 INFO L85 PathProgramCache]: Analyzing trace with hash 2003952902, now seen corresponding path program 1 times [2024-11-13 15:15:39,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:39,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921610000] [2024-11-13 15:15:39,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:39,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:39,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:15:39,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:39,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921610000] [2024-11-13 15:15:39,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921610000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:39,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:39,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:15:39,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889367895] [2024-11-13 15:15:39,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:39,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:15:39,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:39,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:15:39,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:15:39,378 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 461 [2024-11-13 15:15:39,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 461 transitions, 938 flow. Second operand has 2 states, 2 states have (on average 117.0) internal successors, (234), 2 states have internal predecessors, (234), 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) [2024-11-13 15:15:39,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:15:39,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 461 [2024-11-13 15:15:39,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand