./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/libvsync/rec_mcslock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f2d71c-3c25-4754-a356-0f82e8ad11ef/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f2d71c-3c25-4754-a356-0f82e8ad11ef/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f2d71c-3c25-4754-a356-0f82e8ad11ef/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f2d71c-3c25-4754-a356-0f82e8ad11ef/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/libvsync/rec_mcslock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f2d71c-3c25-4754-a356-0f82e8ad11ef/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f2d71c-3c25-4754-a356-0f82e8ad11ef/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 89f4ecf17cdd703d57fdf977621016996b601a0e10c2b1b5ffeae48ee5db4f63 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:59:53,034 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:59:53,130 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f2d71c-3c25-4754-a356-0f82e8ad11ef/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 16:59:53,140 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:59:53,140 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:59:53,175 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:59:53,176 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:59:53,177 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:59:53,178 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:59:53,179 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:59:53,180 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:59:53,180 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:59:53,181 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:59:53,181 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:59:53,182 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:59:53,182 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:59:53,182 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:59:53,183 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:59:53,183 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:59:53,187 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:59:53,188 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:59:53,188 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:59:53,188 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:59:53,189 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:59:53,189 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:59:53,189 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 16:59:53,190 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:59:53,193 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:59:53,194 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:59:53,194 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:59:53,194 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:59:53,195 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:59:53,195 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:59:53,195 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:59:53,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:59:53,196 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:59:53,196 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:59:53,196 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:59:53,196 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:59:53,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:59:53,197 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:59:53,201 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:59:53,201 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:59:53,202 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:59:53,202 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f2d71c-3c25-4754-a356-0f82e8ad11ef/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f2d71c-3c25-4754-a356-0f82e8ad11ef/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89f4ecf17cdd703d57fdf977621016996b601a0e10c2b1b5ffeae48ee5db4f63 [2024-11-08 16:59:53,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:59:53,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:59:53,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:59:53,566 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:59:53,567 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:59:53,568 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f2d71c-3c25-4754-a356-0f82e8ad11ef/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/libvsync/rec_mcslock.i Unable to find full path for "g++" [2024-11-08 16:59:55,619 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:59:56,165 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:59:56,166 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f2d71c-3c25-4754-a356-0f82e8ad11ef/sv-benchmarks/c/libvsync/rec_mcslock.i [2024-11-08 16:59:56,223 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f2d71c-3c25-4754-a356-0f82e8ad11ef/bin/uautomizer-verify-jihMAELWvX/data/4b5fac919/e648730ed5124bb183129372e5db9818/FLAG0531e449b [2024-11-08 16:59:56,247 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f2d71c-3c25-4754-a356-0f82e8ad11ef/bin/uautomizer-verify-jihMAELWvX/data/4b5fac919/e648730ed5124bb183129372e5db9818 [2024-11-08 16:59:56,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:59:56,252 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:59:56,253 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:59:56,253 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:59:56,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:59:56,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:59:56" (1/1) ... [2024-11-08 16:59:56,263 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4670c590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:56, skipping insertion in model container [2024-11-08 16:59:56,263 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:59:56" (1/1) ... [2024-11-08 16:59:56,367 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:59:59,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:59:59,813 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:59:59,934 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2024-11-08 16:59:59,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2024-11-08 16:59:59,937 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2024-11-08 16:59:59,938 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2024-11-08 16:59:59,938 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2024-11-08 16:59:59,940 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2024-11-08 16:59:59,941 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2024-11-08 16:59:59,942 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2024-11-08 16:59:59,943 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2024-11-08 16:59:59,944 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2024-11-08 16:59:59,944 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2024-11-08 16:59:59,945 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2024-11-08 16:59:59,946 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2024-11-08 16:59:59,947 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2024-11-08 16:59:59,947 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2024-11-08 16:59:59,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2024-11-08 16:59:59,949 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2024-11-08 16:59:59,949 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2024-11-08 16:59:59,950 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2024-11-08 16:59:59,950 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2024-11-08 16:59:59,951 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2024-11-08 16:59:59,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2024-11-08 16:59:59,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2024-11-08 16:59:59,953 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2024-11-08 16:59:59,953 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2024-11-08 16:59:59,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2024-11-08 16:59:59,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2024-11-08 16:59:59,956 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2024-11-08 16:59:59,956 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2024-11-08 16:59:59,957 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2024-11-08 16:59:59,958 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2024-11-08 16:59:59,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2024-11-08 16:59:59,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2024-11-08 16:59:59,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2024-11-08 16:59:59,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2024-11-08 16:59:59,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2024-11-08 16:59:59,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2024-11-08 16:59:59,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2024-11-08 16:59:59,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2024-11-08 16:59:59,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2024-11-08 16:59:59,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2024-11-08 16:59:59,970 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2024-11-08 16:59:59,971 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2024-11-08 16:59:59,972 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2024-11-08 16:59:59,972 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2024-11-08 16:59:59,973 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2024-11-08 16:59:59,974 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2024-11-08 16:59:59,976 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2024-11-08 16:59:59,977 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2024-11-08 16:59:59,977 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2024-11-08 16:59:59,979 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2024-11-08 16:59:59,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2024-11-08 16:59:59,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2024-11-08 16:59:59,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2024-11-08 16:59:59,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2024-11-08 16:59:59,986 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2024-11-08 16:59:59,986 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2024-11-08 16:59:59,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2024-11-08 16:59:59,990 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2024-11-08 16:59:59,991 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2024-11-08 16:59:59,992 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2024-11-08 16:59:59,993 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2024-11-08 16:59:59,994 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2024-11-08 16:59:59,995 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2024-11-08 16:59:59,996 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2024-11-08 16:59:59,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2024-11-08 16:59:59,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2024-11-08 16:59:59,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2024-11-08 17:00:00,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2024-11-08 17:00:00,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2024-11-08 17:00:00,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2024-11-08 17:00:00,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2024-11-08 17:00:00,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2024-11-08 17:00:00,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2024-11-08 17:00:00,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2024-11-08 17:00:00,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2024-11-08 17:00:00,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2024-11-08 17:00:00,011 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2024-11-08 17:00:00,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2024-11-08 17:00:00,013 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2024-11-08 17:00:00,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2024-11-08 17:00:00,015 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2024-11-08 17:00:00,015 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2024-11-08 17:00:00,016 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2024-11-08 17:00:00,017 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2024-11-08 17:00:00,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2024-11-08 17:00:00,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2024-11-08 17:00:00,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2024-11-08 17:00:00,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2024-11-08 17:00:00,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2024-11-08 17:00:00,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2024-11-08 17:00:00,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2024-11-08 17:00:00,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2024-11-08 17:00:00,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2024-11-08 17:00:00,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2024-11-08 17:00:00,026 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2024-11-08 17:00:00,026 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2024-11-08 17:00:00,027 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2024-11-08 17:00:00,027 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2024-11-08 17:00:00,028 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2024-11-08 17:00:00,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:00:00,493 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:00:00,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00 WrapperNode [2024-11-08 17:00:00,494 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:00:00,495 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:00:00,495 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:00:00,495 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:00:00,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,631 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,699 INFO L138 Inliner]: procedures = 924, calls = 955, calls flagged for inlining = 838, calls inlined = 56, statements flattened = 480 [2024-11-08 17:00:00,702 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:00:00,703 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:00:00,703 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:00:00,703 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:00:00,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,726 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,788 INFO L175 MemorySlicer]: Split 33 memory accesses to 3 slices as follows [2, 29, 2]. 88 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 9, 0]. The 11 writes are split as follows [0, 10, 1]. [2024-11-08 17:00:00,789 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,789 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,802 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,810 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,812 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,816 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,821 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:00:00,822 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:00:00,822 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:00:00,822 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:00:00,823 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (1/1) ... [2024-11-08 17:00:00,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:00:00,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f2d71c-3c25-4754-a356-0f82e8ad11ef/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:00:00,869 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f2d71c-3c25-4754-a356-0f82e8ad11ef/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:00:00,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f2d71c-3c25-4754-a356-0f82e8ad11ef/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:00:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 17:00:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 17:00:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 17:00:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:00:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 17:00:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 17:00:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 17:00:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:00:00,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:00:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure run [2024-11-08 17:00:00,909 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2024-11-08 17:00:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 17:00:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 17:00:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 17:00:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 17:00:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 17:00:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 17:00:00,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 17:00:00,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:00:00,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-08 17:00:00,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-08 17:00:00,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-08 17:00:00,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:00:00,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 17:00:00,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 17:00:00,915 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 17:00:01,126 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:00:01,128 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:00:01,928 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:00:01,928 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:00:02,437 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:00:02,438 INFO L316 CfgBuilder]: Removed 66 assume(true) statements. [2024-11-08 17:00:02,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:00:02 BoogieIcfgContainer [2024-11-08 17:00:02,439 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:00:02,442 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:00:02,443 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:00:02,447 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:00:02,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:59:56" (1/3) ... [2024-11-08 17:00:02,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a512fbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:00:02, skipping insertion in model container [2024-11-08 17:00:02,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:00" (2/3) ... [2024-11-08 17:00:02,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a512fbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:00:02, skipping insertion in model container [2024-11-08 17:00:02,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:00:02" (3/3) ... [2024-11-08 17:00:02,452 INFO L112 eAbstractionObserver]: Analyzing ICFG rec_mcslock.i [2024-11-08 17:00:02,472 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:00:02,472 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-08 17:00:02,473 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:00:02,722 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 17:00:02,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 216 transitions, 439 flow [2024-11-08 17:00:02,876 INFO L124 PetriNetUnfolderBase]: 84/246 cut-off events. [2024-11-08 17:00:02,877 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:00:02,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 246 events. 84/246 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 658 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 200. Up to 6 conditions per place. [2024-11-08 17:00:02,886 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 216 transitions, 439 flow [2024-11-08 17:00:02,897 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 214 transitions, 432 flow [2024-11-08 17:00:02,910 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:00:02,919 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=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;@6ff494ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:00:02,919 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-08 17:00:02,931 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:00:02,931 INFO L124 PetriNetUnfolderBase]: 21/61 cut-off events. [2024-11-08 17:00:02,931 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:00:02,931 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:00:02,932 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 17:00:02,932 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:00:02,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:02,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1741351078, now seen corresponding path program 1 times [2024-11-08 17:00:02,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:02,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53634970] [2024-11-08 17:00:02,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:02,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:03,169 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:00:03,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:03,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53634970] [2024-11-08 17:00:03,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53634970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:03,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:00:03,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:00:03,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289106966] [2024-11-08 17:00:03,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:03,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:00:03,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:03,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:00:03,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:00:03,255 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 216 [2024-11-08 17:00:03,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 214 transitions, 432 flow. Second operand has 2 states, 2 states have (on average 70.0) internal successors, (140), 2 states have internal predecessors, (140), 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) [2024-11-08 17:00:03,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:00:03,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 216 [2024-11-08 17:00:03,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:00:03,847 INFO L124 PetriNetUnfolderBase]: 757/1935 cut-off events. [2024-11-08 17:00:03,847 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:00:03,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3354 conditions, 1935 events. 757/1935 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 13169 event pairs, 603 based on Foata normal form. 707/2502 useless extension candidates. Maximal degree in co-relation 3307. Up to 1415 conditions per place. [2024-11-08 17:00:03,867 INFO L140 encePairwiseOnDemand]: 161/216 looper letters, 92 selfloop transitions, 0 changer transitions 0/159 dead transitions. [2024-11-08 17:00:03,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 159 transitions, 506 flow [2024-11-08 17:00:03,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:00:03,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-08 17:00:03,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 281 transitions. [2024-11-08 17:00:03,881 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6504629629629629 [2024-11-08 17:00:03,883 INFO L175 Difference]: Start difference. First operand has 145 places, 214 transitions, 432 flow. Second operand 2 states and 281 transitions. [2024-11-08 17:00:03,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 159 transitions, 506 flow [2024-11-08 17:00:03,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 159 transitions, 506 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:00:03,890 INFO L231 Difference]: Finished difference. Result has 146 places, 159 transitions, 322 flow [2024-11-08 17:00:03,892 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=322, PETRI_PLACES=146, PETRI_TRANSITIONS=159} [2024-11-08 17:00:03,897 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 1 predicate places. [2024-11-08 17:00:03,898 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 159 transitions, 322 flow [2024-11-08 17:00:03,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 70.0) internal successors, (140), 2 states have internal predecessors, (140), 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) [2024-11-08 17:00:03,898 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:00:03,898 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:00:03,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:00:03,899 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:00:03,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:03,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1850478490, now seen corresponding path program 1 times [2024-11-08 17:00:03,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:03,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403441805] [2024-11-08 17:00:03,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:03,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:00:03,988 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:00:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:00:04,072 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:00:04,072 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:00:04,075 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-08 17:00:04,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-08 17:00:04,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-08 17:00:04,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-08 17:00:04,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-08 17:00:04,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-08 17:00:04,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-08 17:00:04,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-08 17:00:04,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-08 17:00:04,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-08 17:00:04,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-08 17:00:04,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-08 17:00:04,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-08 17:00:04,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:00:04,083 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 17:00:04,086 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:00:04,086 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 17:00:04,305 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 17:00:04,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 262 places, 387 transitions, 790 flow [2024-11-08 17:00:04,463 INFO L124 PetriNetUnfolderBase]: 158/466 cut-off events. [2024-11-08 17:00:04,464 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 17:00:04,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 466 events. 158/466 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1768 event pairs, 0 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 386. Up to 12 conditions per place. [2024-11-08 17:00:04,474 INFO L82 GeneralOperation]: Start removeDead. Operand has 262 places, 387 transitions, 790 flow [2024-11-08 17:00:04,486 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 262 places, 387 transitions, 790 flow [2024-11-08 17:00:04,487 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:00:04,489 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=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;@6ff494ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:00:04,489 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-08 17:00:04,501 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:00:04,502 INFO L124 PetriNetUnfolderBase]: 41/118 cut-off events. [2024-11-08 17:00:04,502 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-08 17:00:04,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:00:04,502 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 17:00:04,502 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:00:04,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:04,503 INFO L85 PathProgramCache]: Analyzing trace with hash 47745908, now seen corresponding path program 1 times [2024-11-08 17:00:04,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:04,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363445033] [2024-11-08 17:00:04,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:04,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:04,592 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 17:00:04,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:04,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363445033] [2024-11-08 17:00:04,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363445033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:04,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:00:04,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:00:04,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862452950] [2024-11-08 17:00:04,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:04,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:00:04,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:04,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:00:04,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:00:04,600 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 387 [2024-11-08 17:00:04,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 387 transitions, 790 flow. Second operand has 2 states, 2 states have (on average 119.5) internal successors, (239), 2 states have internal predecessors, (239), 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) [2024-11-08 17:00:04,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:00:04,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 387 [2024-11-08 17:00:04,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:00:28,735 INFO L124 PetriNetUnfolderBase]: 107187/183570 cut-off events. [2024-11-08 17:00:28,735 INFO L125 PetriNetUnfolderBase]: For 596/596 co-relation queries the response was YES. [2024-11-08 17:00:29,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339207 conditions, 183570 events. 107187/183570 cut-off events. For 596/596 co-relation queries the response was YES. Maximal size of possible extension queue 3523. Compared 1847761 event pairs, 89777 based on Foata normal form. 69257/240148 useless extension candidates. Maximal degree in co-relation 141037. Up to 155290 conditions per place. [2024-11-08 17:00:30,181 INFO L140 encePairwiseOnDemand]: 291/387 looper letters, 175 selfloop transitions, 0 changer transitions 0/291 dead transitions. [2024-11-08 17:00:30,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 291 transitions, 948 flow [2024-11-08 17:00:30,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:00:30,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-08 17:00:30,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 503 transitions. [2024-11-08 17:00:30,192 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6498708010335917 [2024-11-08 17:00:30,192 INFO L175 Difference]: Start difference. First operand has 262 places, 387 transitions, 790 flow. Second operand 2 states and 503 transitions. [2024-11-08 17:00:30,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 291 transitions, 948 flow [2024-11-08 17:00:30,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 291 transitions, 948 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:00:30,206 INFO L231 Difference]: Finished difference. Result has 263 places, 291 transitions, 598 flow [2024-11-08 17:00:30,207 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=387, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=598, PETRI_PLACES=263, PETRI_TRANSITIONS=291} [2024-11-08 17:00:30,208 INFO L277 CegarLoopForPetriNet]: 262 programPoint places, 1 predicate places. [2024-11-08 17:00:30,208 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 291 transitions, 598 flow [2024-11-08 17:00:30,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 119.5) internal successors, (239), 2 states have internal predecessors, (239), 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) [2024-11-08 17:00:30,209 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:00:30,209 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:00:30,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:00:30,209 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:00:30,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:30,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1828662260, now seen corresponding path program 1 times [2024-11-08 17:00:30,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:30,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563905898] [2024-11-08 17:00:30,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:30,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:00:30,282 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:00:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:00:30,351 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:00:30,355 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:00:30,356 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2024-11-08 17:00:30,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2024-11-08 17:00:30,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2024-11-08 17:00:30,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2024-11-08 17:00:30,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2024-11-08 17:00:30,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2024-11-08 17:00:30,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2024-11-08 17:00:30,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2024-11-08 17:00:30,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2024-11-08 17:00:30,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2024-11-08 17:00:30,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2024-11-08 17:00:30,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2024-11-08 17:00:30,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2024-11-08 17:00:30,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2024-11-08 17:00:30,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2024-11-08 17:00:30,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2024-11-08 17:00:30,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2024-11-08 17:00:30,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2024-11-08 17:00:30,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2024-11-08 17:00:30,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:00:30,363 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 17:00:30,365 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:00:30,365 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-08 17:00:30,645 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-08 17:00:30,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 378 places, 558 transitions, 1143 flow [2024-11-08 17:00:30,853 INFO L124 PetriNetUnfolderBase]: 245/721 cut-off events. [2024-11-08 17:00:30,854 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-08 17:00:30,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 746 conditions, 721 events. 245/721 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3299 event pairs, 1 based on Foata normal form. 0/454 useless extension candidates. Maximal degree in co-relation 591. Up to 24 conditions per place. [2024-11-08 17:00:30,882 INFO L82 GeneralOperation]: Start removeDead. Operand has 378 places, 558 transitions, 1143 flow [2024-11-08 17:00:30,903 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 378 places, 558 transitions, 1143 flow [2024-11-08 17:00:30,904 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:00:30,905 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=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;@6ff494ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:00:30,906 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-08 17:00:30,928 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:00:30,929 INFO L124 PetriNetUnfolderBase]: 75/209 cut-off events. [2024-11-08 17:00:30,929 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-08 17:00:30,929 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:00:30,929 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:00:30,930 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 17:00:30,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:30,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1910840437, now seen corresponding path program 1 times [2024-11-08 17:00:30,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:30,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776494396] [2024-11-08 17:00:30,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:30,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:31,000 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-08 17:00:31,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:31,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776494396] [2024-11-08 17:00:31,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776494396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:31,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:00:31,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:00:31,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621330407] [2024-11-08 17:00:31,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:31,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:00:31,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:31,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:00:31,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:00:31,011 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 558 [2024-11-08 17:00:31,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 558 transitions, 1143 flow. Second operand has 2 states, 2 states have (on average 169.0) internal successors, (338), 2 states have internal predecessors, (338), 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) [2024-11-08 17:00:31,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:00:31,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 558 [2024-11-08 17:00:31,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand