./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc 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_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI --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 22b4144b7005899e18ff8135fa52f12863f7106dbe1ddb808d25d8593c5f8fc4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:06:40,295 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:06:40,389 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-24 22:06:40,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:06:40,399 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 22:06:40,441 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:06:40,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 22:06:40,443 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 22:06:40,444 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 22:06:40,449 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 22:06:40,450 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:06:40,450 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 22:06:40,451 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:06:40,453 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:06:40,454 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 22:06:40,454 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:06:40,455 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:06:40,455 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:06:40,456 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:06:40,456 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:06:40,457 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 22:06:40,457 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 22:06:40,458 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 22:06:40,458 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:06:40,458 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:06:40,459 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:06:40,459 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:06:40,459 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:06:40,460 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:06:40,460 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 22:06:40,461 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 22:06:40,461 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 22:06:40,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 22:06:40,462 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:06:40,462 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:06:40,462 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 22:06:40,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:06:40,463 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 22:06:40,463 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 22:06:40,463 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 22:06:40,463 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:06:40,464 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_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b4144b7005899e18ff8135fa52f12863f7106dbe1ddb808d25d8593c5f8fc4 [2023-11-24 22:06:40,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:06:40,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:06:40,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:06:40,852 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:06:40,852 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:06:40,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i [2023-11-24 22:06:44,071 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:06:44,422 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:06:44,423 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i [2023-11-24 22:06:44,458 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/data/f76040d71/c231f3c31f2340f694e7968ea26cd3aa/FLAG221a097c1 [2023-11-24 22:06:44,479 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/data/f76040d71/c231f3c31f2340f694e7968ea26cd3aa [2023-11-24 22:06:44,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:06:44,485 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:06:44,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:06:44,487 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:06:44,493 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:06:44,494 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:06:44" (1/1) ... [2023-11-24 22:06:44,495 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7238d5bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:44, skipping insertion in model container [2023-11-24 22:06:44,495 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:06:44" (1/1) ... [2023-11-24 22:06:44,566 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:06:45,143 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:06:45,172 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-24 22:06:45,173 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@12497483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:45, skipping insertion in model container [2023-11-24 22:06:45,173 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:06:45,173 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 22:06:45,175 INFO L158 Benchmark]: Toolchain (without parser) took 689.44ms. Allocated memory is still 140.5MB. Free memory was 101.2MB in the beginning and 81.8MB in the end (delta: 19.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-24 22:06:45,176 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 140.5MB. Free memory is still 113.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:06:45,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 686.62ms. Allocated memory is still 140.5MB. Free memory was 100.7MB in the beginning and 81.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-24 22:06:45,182 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 140.5MB. Free memory is still 113.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 686.62ms. Allocated memory is still 140.5MB. Free memory was 100.7MB in the beginning and 81.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 716]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI --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 22b4144b7005899e18ff8135fa52f12863f7106dbe1ddb808d25d8593c5f8fc4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:06:47,747 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:06:47,820 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-24 22:06:47,831 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:06:47,835 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 22:06:47,903 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:06:47,904 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 22:06:47,904 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 22:06:47,906 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 22:06:47,911 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 22:06:47,911 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:06:47,912 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 22:06:47,913 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:06:47,915 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:06:47,915 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 22:06:47,916 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:06:47,917 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:06:47,917 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:06:47,918 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:06:47,919 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:06:47,919 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 22:06:47,920 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 22:06:47,921 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 22:06:47,921 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:06:47,922 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:06:47,922 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:06:47,923 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:06:47,923 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:06:47,924 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:06:47,924 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:06:47,926 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:06:47,927 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 22:06:47,927 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 22:06:47,927 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 22:06:47,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 22:06:47,928 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:06:47,929 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:06:47,930 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-24 22:06:47,930 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:06:47,930 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 22:06:47,931 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 22:06:47,931 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 22:06:47,931 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:06:47,932 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-24 22:06:47,932 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_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b4144b7005899e18ff8135fa52f12863f7106dbe1ddb808d25d8593c5f8fc4 [2023-11-24 22:06:48,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:06:48,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:06:48,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:06:48,422 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:06:48,422 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:06:48,424 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i [2023-11-24 22:06:51,580 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:06:51,986 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:06:51,987 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i [2023-11-24 22:06:52,016 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/data/f04954c4d/4e49f23f0a764ccaa59388f8c537bbba/FLAGaa15ccc61 [2023-11-24 22:06:52,039 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/data/f04954c4d/4e49f23f0a764ccaa59388f8c537bbba [2023-11-24 22:06:52,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:06:52,049 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:06:52,054 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:06:52,054 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:06:52,064 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:06:52,065 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:06:52" (1/1) ... [2023-11-24 22:06:52,066 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eacd54b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:52, skipping insertion in model container [2023-11-24 22:06:52,070 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:06:52" (1/1) ... [2023-11-24 22:06:52,163 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:06:52,969 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:06:52,984 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 22:06:53,002 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:06:53,107 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:06:53,121 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:06:53,239 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:06:53,318 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:06:53,326 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:06:53,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53 WrapperNode [2023-11-24 22:06:53,327 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:06:53,328 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:06:53,329 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:06:53,329 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:06:53,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:53,387 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:53,487 INFO L138 Inliner]: procedures = 179, calls = 280, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1017 [2023-11-24 22:06:53,488 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:06:53,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:06:53,489 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:06:53,489 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:06:53,502 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:53,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:53,523 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:53,614 INFO L175 MemorySlicer]: Split 258 memory accesses to 4 slices as follows [2, 34, 217, 5]. 84 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 55 writes are split as follows [0, 4, 50, 1]. [2023-11-24 22:06:53,629 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:53,629 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:53,694 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:53,722 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:53,728 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:53,736 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:53,751 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:06:53,753 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:06:53,753 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:06:53,753 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:06:53,754 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:53,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 22:06:53,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 22:06:53,815 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 22:06:53,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 22:06:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-24 22:06:53,865 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-24 22:06:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-24 22:06:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-24 22:06:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-24 22:06:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-24 22:06:53,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-24 22:06:53,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-24 22:06:53,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-24 22:06:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-24 22:06:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-24 22:06:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-24 22:06:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-24 22:06:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-24 22:06:53,870 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-24 22:06:53,870 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-24 22:06:53,871 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-24 22:06:53,871 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-24 22:06:53,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 22:06:53,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:06:53,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-24 22:06:53,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-24 22:06:53,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-24 22:06:53,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-24 22:06:53,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:06:53,874 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 22:06:53,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-24 22:06:53,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-24 22:06:53,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-24 22:06:53,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-24 22:06:53,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:06:53,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-24 22:06:53,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-24 22:06:53,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-24 22:06:53,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-24 22:06:53,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-24 22:06:53,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-24 22:06:53,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-24 22:06:53,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-24 22:06:53,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:06:53,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:06:54,159 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:06:54,161 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:06:54,200 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 22:06:54,233 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 22:06:54,255 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 22:06:54,276 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 22:06:59,259 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:06:59,529 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:06:59,529 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-24 22:06:59,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:06:59 BoogieIcfgContainer [2023-11-24 22:06:59,531 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:06:59,533 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 22:06:59,534 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 22:06:59,539 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 22:06:59,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 10:06:52" (1/3) ... [2023-11-24 22:06:59,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e58db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:06:59, skipping insertion in model container [2023-11-24 22:06:59,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (2/3) ... [2023-11-24 22:06:59,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e58db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:06:59, skipping insertion in model container [2023-11-24 22:06:59,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:06:59" (3/3) ... [2023-11-24 22:06:59,545 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test7-1.i [2023-11-24 22:06:59,566 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 22:06:59,566 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 529 error locations. [2023-11-24 22:06:59,668 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 22:06:59,675 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@6a232596, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:06:59,675 INFO L358 AbstractCegarLoop]: Starting to check reachability of 529 error locations. [2023-11-24 22:06:59,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 956 states, 422 states have (on average 2.537914691943128) internal successors, (1071), 949 states have internal predecessors, (1071), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-24 22:06:59,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 22:06:59,692 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:06:59,693 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-24 22:06:59,693 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-24 22:06:59,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:06:59,702 INFO L85 PathProgramCache]: Analyzing trace with hash 54702, now seen corresponding path program 1 times [2023-11-24 22:06:59,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:06:59,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1788450636] [2023-11-24 22:06:59,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:06:59,716 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:06:59,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:06:59,722 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 22:06:59,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-24 22:06:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:06:59,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:06:59,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:00,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-24 22:07:00,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:00,028 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:07:00,029 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:07:00,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1788450636] [2023-11-24 22:07:00,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1788450636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:00,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:07:00,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 22:07:00,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90122519] [2023-11-24 22:07:00,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:00,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:07:00,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:07:00,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:07:00,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:07:00,082 INFO L87 Difference]: Start difference. First operand has 956 states, 422 states have (on average 2.537914691943128) internal successors, (1071), 949 states have internal predecessors, (1071), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-24 22:07:02,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:07:02,292 INFO L93 Difference]: Finished difference Result 950 states and 1005 transitions. [2023-11-24 22:07:02,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:02,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) Word has length 2 [2023-11-24 22:07:02,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:07:02,325 INFO L225 Difference]: With dead ends: 950 [2023-11-24 22:07:02,326 INFO L226 Difference]: Without dead ends: 949 [2023-11-24 22:07:02,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:07:02,335 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 881 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-24 22:07:02,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 561 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-24 22:07:02,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2023-11-24 22:07:02,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 940. [2023-11-24 22:07:02,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 424 states have (on average 2.330188679245283) internal successors, (988), 934 states have internal predecessors, (988), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-24 22:07:02,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 996 transitions. [2023-11-24 22:07:02,432 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 996 transitions. Word has length 2 [2023-11-24 22:07:02,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:07:02,432 INFO L495 AbstractCegarLoop]: Abstraction has 940 states and 996 transitions. [2023-11-24 22:07:02,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-24 22:07:02,433 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 996 transitions. [2023-11-24 22:07:02,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 22:07:02,433 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:07:02,433 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-24 22:07:02,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-24 22:07:02,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:02,636 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-24 22:07:02,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:02,637 INFO L85 PathProgramCache]: Analyzing trace with hash 54703, now seen corresponding path program 1 times [2023-11-24 22:07:02,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:07:02,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698361797] [2023-11-24 22:07:02,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:02,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:02,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:07:02,639 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 22:07:02,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-24 22:07:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:02,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 22:07:02,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:02,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-24 22:07:02,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:02,830 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:07:02,830 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:07:02,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698361797] [2023-11-24 22:07:02,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [698361797] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:02,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:07:02,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 22:07:02,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105326479] [2023-11-24 22:07:02,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:02,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:07:02,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:07:02,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:07:02,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:07:02,835 INFO L87 Difference]: Start difference. First operand 940 states and 996 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-24 22:07:06,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:07:06,749 INFO L93 Difference]: Finished difference Result 1296 states and 1383 transitions. [2023-11-24 22:07:06,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:06,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) Word has length 2 [2023-11-24 22:07:06,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:07:06,758 INFO L225 Difference]: With dead ends: 1296 [2023-11-24 22:07:06,758 INFO L226 Difference]: Without dead ends: 1296 [2023-11-24 22:07:06,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:07:06,760 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 385 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-24 22:07:06,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 1208 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-24 22:07:06,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2023-11-24 22:07:06,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1109. [2023-11-24 22:07:06,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 594 states have (on average 2.3047138047138045) internal successors, (1369), 1103 states have internal predecessors, (1369), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-24 22:07:06,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1377 transitions. [2023-11-24 22:07:06,818 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1377 transitions. Word has length 2 [2023-11-24 22:07:06,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:07:06,819 INFO L495 AbstractCegarLoop]: Abstraction has 1109 states and 1377 transitions. [2023-11-24 22:07:06,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-24 22:07:06,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1377 transitions. [2023-11-24 22:07:06,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:07:06,820 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:07:06,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-24 22:07:06,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-24 22:07:07,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:07,023 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-24 22:07:07,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:07,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1020415880, now seen corresponding path program 1 times [2023-11-24 22:07:07,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:07:07,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [658348784] [2023-11-24 22:07:07,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:07,035 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:07,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:07:07,040 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 22:07:07,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-24 22:07:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:07,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 22:07:07,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:07,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-24 22:07:07,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-24 22:07:07,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:07,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-24 22:07:07,385 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-24 22:07:07,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-24 22:07:07,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:07,409 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:07:07,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:07:07,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [658348784] [2023-11-24 22:07:07,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [658348784] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:07,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:07:07,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 22:07:07,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620801798] [2023-11-24 22:07:07,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:07,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:07:07,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:07:07,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:07:07,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:07:07,412 INFO L87 Difference]: Start difference. First operand 1109 states and 1377 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-24 22:07:10,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:07:10,758 INFO L93 Difference]: Finished difference Result 1112 states and 1382 transitions. [2023-11-24 22:07:10,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:07:10,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2023-11-24 22:07:10,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:07:10,770 INFO L225 Difference]: With dead ends: 1112 [2023-11-24 22:07:10,770 INFO L226 Difference]: Without dead ends: 1112 [2023-11-24 22:07:10,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:07:10,774 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 966 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-24 22:07:10,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 282 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-24 22:07:10,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2023-11-24 22:07:10,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 929. [2023-11-24 22:07:10,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 424 states have (on average 2.30188679245283) internal successors, (976), 923 states have internal predecessors, (976), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-24 22:07:10,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 984 transitions. [2023-11-24 22:07:10,804 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 984 transitions. Word has length 6 [2023-11-24 22:07:10,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:07:10,807 INFO L495 AbstractCegarLoop]: Abstraction has 929 states and 984 transitions. [2023-11-24 22:07:10,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-24 22:07:10,807 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 984 transitions. [2023-11-24 22:07:10,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:07:10,808 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:07:10,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-24 22:07:10,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-24 22:07:11,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:11,011 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-24 22:07:11,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:11,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1568121198, now seen corresponding path program 1 times [2023-11-24 22:07:11,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:07:11,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280190472] [2023-11-24 22:07:11,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:11,013 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:11,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:07:11,014 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 22:07:11,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-24 22:07:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:11,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:07:11,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:11,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-24 22:07:11,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:11,208 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:07:11,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:07:11,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280190472] [2023-11-24 22:07:11,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280190472] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:11,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:07:11,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 22:07:11,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845530134] [2023-11-24 22:07:11,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:11,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:07:11,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:07:11,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:07:11,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:07:11,212 INFO L87 Difference]: Start difference. First operand 929 states and 984 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-24 22:07:13,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:07:13,826 INFO L93 Difference]: Finished difference Result 1225 states and 1310 transitions. [2023-11-24 22:07:13,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:13,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2023-11-24 22:07:13,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:07:13,835 INFO L225 Difference]: With dead ends: 1225 [2023-11-24 22:07:13,835 INFO L226 Difference]: Without dead ends: 1225 [2023-11-24 22:07:13,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:07:13,837 INFO L413 NwaCegarLoop]: 761 mSDtfsCounter, 881 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-24 22:07:13,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 971 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-24 22:07:13,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2023-11-24 22:07:13,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 882. [2023-11-24 22:07:13,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 424 states have (on average 2.1910377358490565) internal successors, (929), 876 states have internal predecessors, (929), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-24 22:07:13,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 937 transitions. [2023-11-24 22:07:13,864 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 937 transitions. Word has length 7 [2023-11-24 22:07:13,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:07:13,864 INFO L495 AbstractCegarLoop]: Abstraction has 882 states and 937 transitions. [2023-11-24 22:07:13,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-24 22:07:13,865 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 937 transitions. [2023-11-24 22:07:13,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:07:13,865 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:07:13,865 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-24 22:07:13,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-24 22:07:14,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:14,068 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-24 22:07:14,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:14,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1568121197, now seen corresponding path program 1 times [2023-11-24 22:07:14,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:07:14,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011611268] [2023-11-24 22:07:14,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:14,070 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:14,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:07:14,071 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 22:07:14,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-24 22:07:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:14,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 22:07:14,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:14,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-24 22:07:14,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:14,286 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:07:14,286 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:07:14,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011611268] [2023-11-24 22:07:14,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011611268] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:14,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:07:14,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 22:07:14,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844741214] [2023-11-24 22:07:14,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:14,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:07:14,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:07:14,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:07:14,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:07:14,289 INFO L87 Difference]: Start difference. First operand 882 states and 937 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-24 22:07:18,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:07:18,203 INFO L93 Difference]: Finished difference Result 1295 states and 1383 transitions. [2023-11-24 22:07:18,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:18,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2023-11-24 22:07:18,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:07:18,210 INFO L225 Difference]: With dead ends: 1295 [2023-11-24 22:07:18,210 INFO L226 Difference]: Without dead ends: 1295 [2023-11-24 22:07:18,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:07:18,211 INFO L413 NwaCegarLoop]: 932 mSDtfsCounter, 613 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 1272 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-24 22:07:18,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 1272 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-24 22:07:18,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2023-11-24 22:07:18,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 895. [2023-11-24 22:07:18,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 447 states have (on average 2.1834451901565997) internal successors, (976), 889 states have internal predecessors, (976), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-24 22:07:18,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 984 transitions. [2023-11-24 22:07:18,237 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 984 transitions. Word has length 7 [2023-11-24 22:07:18,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:07:18,238 INFO L495 AbstractCegarLoop]: Abstraction has 895 states and 984 transitions. [2023-11-24 22:07:18,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-24 22:07:18,238 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 984 transitions. [2023-11-24 22:07:18,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 22:07:18,239 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:07:18,239 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 22:07:18,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-24 22:07:18,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:18,441 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr527ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-24 22:07:18,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:18,442 INFO L85 PathProgramCache]: Analyzing trace with hash 4917671, now seen corresponding path program 1 times [2023-11-24 22:07:18,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:07:18,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130858480] [2023-11-24 22:07:18,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:18,443 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:18,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:07:18,444 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 22:07:18,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-24 22:07:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:18,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 22:07:18,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:18,665 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 22:07:18,665 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 22:07:18,666 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 22:07:18,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-24 22:07:18,749 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:07:18,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-24 22:07:18,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:18,772 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:07:18,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:07:18,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130858480] [2023-11-24 22:07:18,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130858480] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:18,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:07:18,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 22:07:18,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796494875] [2023-11-24 22:07:18,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:18,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:07:18,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:07:18,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:07:18,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:07:18,776 INFO L87 Difference]: Start difference. First operand 895 states and 984 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:07:21,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:07:21,098 INFO L93 Difference]: Finished difference Result 1779 states and 1958 transitions. [2023-11-24 22:07:21,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:07:21,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-24 22:07:21,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:07:21,107 INFO L225 Difference]: With dead ends: 1779 [2023-11-24 22:07:21,108 INFO L226 Difference]: Without dead ends: 1779 [2023-11-24 22:07:21,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 22:07:21,109 INFO L413 NwaCegarLoop]: 797 mSDtfsCounter, 898 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-24 22:07:21,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 2384 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-24 22:07:21,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1779 states. [2023-11-24 22:07:21,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1779 to 897. [2023-11-24 22:07:21,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 449 states have (on average 2.178173719376392) internal successors, (978), 891 states have internal predecessors, (978), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-24 22:07:21,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 986 transitions. [2023-11-24 22:07:21,139 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 986 transitions. Word has length 11 [2023-11-24 22:07:21,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:07:21,140 INFO L495 AbstractCegarLoop]: Abstraction has 897 states and 986 transitions. [2023-11-24 22:07:21,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:07:21,140 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 986 transitions. [2023-11-24 22:07:21,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 22:07:21,141 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:07:21,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 22:07:21,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-24 22:07:21,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:21,347 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-24 22:07:21,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:21,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1709168535, now seen corresponding path program 1 times [2023-11-24 22:07:21,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:07:21,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608303201] [2023-11-24 22:07:21,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:21,348 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:21,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:07:21,350 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 22:07:21,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-24 22:07:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:21,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:07:21,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:21,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:21,570 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:07:21,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:07:21,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [608303201] [2023-11-24 22:07:21,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [608303201] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:21,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:07:21,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 22:07:21,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078509436] [2023-11-24 22:07:21,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:21,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:07:21,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:07:21,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:07:21,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:07:21,573 INFO L87 Difference]: Start difference. First operand 897 states and 986 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-11-24 22:07:22,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:07:22,558 INFO L93 Difference]: Finished difference Result 858 states and 946 transitions. [2023-11-24 22:07:22,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:22,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) Word has length 15 [2023-11-24 22:07:22,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:07:22,564 INFO L225 Difference]: With dead ends: 858 [2023-11-24 22:07:22,565 INFO L226 Difference]: Without dead ends: 858 [2023-11-24 22:07:22,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:07:22,566 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 70 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1485 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-24 22:07:22,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1485 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-24 22:07:22,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2023-11-24 22:07:22,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 858. [2023-11-24 22:07:22,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 434 states have (on average 2.161290322580645) internal successors, (938), 852 states have internal predecessors, (938), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-24 22:07:22,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 946 transitions. [2023-11-24 22:07:22,594 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 946 transitions. Word has length 15 [2023-11-24 22:07:22,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:07:22,595 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 946 transitions. [2023-11-24 22:07:22,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-11-24 22:07:22,595 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 946 transitions. [2023-11-24 22:07:22,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-24 22:07:22,596 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:07:22,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 22:07:22,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-24 22:07:22,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:22,801 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-24 22:07:22,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:22,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1833457533, now seen corresponding path program 1 times [2023-11-24 22:07:22,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:07:22,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658849073] [2023-11-24 22:07:22,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:22,803 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:22,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:07:22,805 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 22:07:22,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-24 22:07:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:23,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:07:23,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:23,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:23,063 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:07:23,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:07:23,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658849073] [2023-11-24 22:07:23,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1658849073] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:23,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:07:23,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 22:07:23,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000164576] [2023-11-24 22:07:23,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:23,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:07:23,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:07:23,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:07:23,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:07:23,067 INFO L87 Difference]: Start difference. First operand 858 states and 946 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2023-11-24 22:07:24,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:07:24,397 INFO L93 Difference]: Finished difference Result 844 states and 925 transitions. [2023-11-24 22:07:24,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:07:24,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) Word has length 17 [2023-11-24 22:07:24,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:07:24,402 INFO L225 Difference]: With dead ends: 844 [2023-11-24 22:07:24,403 INFO L226 Difference]: Without dead ends: 844 [2023-11-24 22:07:24,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 22:07:24,404 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 58 mSDsluCounter, 1448 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 2184 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-24 22:07:24,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 2184 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-24 22:07:24,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2023-11-24 22:07:24,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 843. [2023-11-24 22:07:24,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 433 states have (on average 2.115473441108545) internal successors, (916), 837 states have internal predecessors, (916), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-24 22:07:24,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 924 transitions. [2023-11-24 22:07:24,424 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 924 transitions. Word has length 17 [2023-11-24 22:07:24,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:07:24,424 INFO L495 AbstractCegarLoop]: Abstraction has 843 states and 924 transitions. [2023-11-24 22:07:24,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2023-11-24 22:07:24,425 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 924 transitions. [2023-11-24 22:07:24,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-24 22:07:24,426 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:07:24,426 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 22:07:24,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-24 22:07:24,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:24,630 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-24 22:07:24,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:24,630 INFO L85 PathProgramCache]: Analyzing trace with hash 308594481, now seen corresponding path program 1 times [2023-11-24 22:07:24,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:07:24,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381774643] [2023-11-24 22:07:24,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:24,631 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:24,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:07:24,632 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 22:07:24,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-24 22:07:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:24,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 22:07:24,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:24,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-24 22:07:24,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:24,974 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:07:24,975 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:07:24,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381774643] [2023-11-24 22:07:24,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [381774643] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:24,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:07:24,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 22:07:24,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27314914] [2023-11-24 22:07:24,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:24,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:07:24,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:07:24,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:07:24,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:07:24,979 INFO L87 Difference]: Start difference. First operand 843 states and 924 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-11-24 22:07:28,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:07:28,129 INFO L93 Difference]: Finished difference Result 1182 states and 1293 transitions. [2023-11-24 22:07:28,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:07:28,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) Word has length 31 [2023-11-24 22:07:28,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:07:28,137 INFO L225 Difference]: With dead ends: 1182 [2023-11-24 22:07:28,137 INFO L226 Difference]: Without dead ends: 1182 [2023-11-24 22:07:28,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 22:07:28,138 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 814 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-24 22:07:28,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [817 Valid, 956 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-24 22:07:28,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2023-11-24 22:07:28,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 839. [2023-11-24 22:07:28,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 433 states have (on average 2.1062355658198615) internal successors, (912), 833 states have internal predecessors, (912), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-24 22:07:28,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 920 transitions. [2023-11-24 22:07:28,161 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 920 transitions. Word has length 31 [2023-11-24 22:07:28,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:07:28,162 INFO L495 AbstractCegarLoop]: Abstraction has 839 states and 920 transitions. [2023-11-24 22:07:28,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-11-24 22:07:28,162 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 920 transitions. [2023-11-24 22:07:28,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-24 22:07:28,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:07:28,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 22:07:28,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-24 22:07:28,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:28,367 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-24 22:07:28,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:28,368 INFO L85 PathProgramCache]: Analyzing trace with hash 308594482, now seen corresponding path program 1 times [2023-11-24 22:07:28,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:07:28,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [567897521] [2023-11-24 22:07:28,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:28,369 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:28,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:07:28,370 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 22:07:28,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-24 22:07:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:28,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 22:07:28,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:28,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-24 22:07:28,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:28,862 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:07:28,862 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:07:28,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [567897521] [2023-11-24 22:07:28,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [567897521] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:28,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:07:28,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 22:07:28,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241568316] [2023-11-24 22:07:28,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:28,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:07:28,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:07:28,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:07:28,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:07:28,865 INFO L87 Difference]: Start difference. First operand 839 states and 920 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-11-24 22:07:33,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:07:33,243 INFO L93 Difference]: Finished difference Result 1235 states and 1315 transitions. [2023-11-24 22:07:33,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:07:33,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) Word has length 31 [2023-11-24 22:07:33,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:07:33,250 INFO L225 Difference]: With dead ends: 1235 [2023-11-24 22:07:33,250 INFO L226 Difference]: Without dead ends: 1235 [2023-11-24 22:07:33,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 22:07:33,251 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 548 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 1157 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-24 22:07:33,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 1253 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1157 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-24 22:07:33,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2023-11-24 22:07:33,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 835. [2023-11-24 22:07:33,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 433 states have (on average 2.096997690531178) internal successors, (908), 829 states have internal predecessors, (908), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-24 22:07:33,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 916 transitions. [2023-11-24 22:07:33,273 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 916 transitions. Word has length 31 [2023-11-24 22:07:33,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:07:33,273 INFO L495 AbstractCegarLoop]: Abstraction has 835 states and 916 transitions. [2023-11-24 22:07:33,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-11-24 22:07:33,274 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 916 transitions. [2023-11-24 22:07:33,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-24 22:07:33,276 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:07:33,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 22:07:33,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-24 22:07:33,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:33,480 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-24 22:07:33,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:33,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1210445483, now seen corresponding path program 1 times [2023-11-24 22:07:33,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:07:33,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825459067] [2023-11-24 22:07:33,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:33,482 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:33,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:07:33,483 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 22:07:33,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-24 22:07:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:33,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:07:33,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:33,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:33,831 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:07:33,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:07:33,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825459067] [2023-11-24 22:07:33,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1825459067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:33,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:07:33,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 22:07:33,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686171898] [2023-11-24 22:07:33,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:33,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:07:33,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:07:33,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:07:33,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:07:33,834 INFO L87 Difference]: Start difference. First operand 835 states and 916 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2023-11-24 22:07:35,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:07:35,140 INFO L93 Difference]: Finished difference Result 829 states and 906 transitions. [2023-11-24 22:07:35,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:07:35,142 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) Word has length 47 [2023-11-24 22:07:35,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:07:35,147 INFO L225 Difference]: With dead ends: 829 [2023-11-24 22:07:35,147 INFO L226 Difference]: Without dead ends: 829 [2023-11-24 22:07:35,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 22:07:35,148 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 23 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 2170 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-24 22:07:35,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 2170 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-24 22:07:35,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2023-11-24 22:07:35,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 829. [2023-11-24 22:07:35,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 427 states have (on average 2.1030444964871196) internal successors, (898), 823 states have internal predecessors, (898), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-24 22:07:35,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 906 transitions. [2023-11-24 22:07:35,168 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 906 transitions. Word has length 47 [2023-11-24 22:07:35,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:07:35,168 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 906 transitions. [2023-11-24 22:07:35,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2023-11-24 22:07:35,169 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 906 transitions. [2023-11-24 22:07:35,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-24 22:07:35,170 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:07:35,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 22:07:35,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-24 22:07:35,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:35,376 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-24 22:07:35,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:35,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1449506260, now seen corresponding path program 1 times [2023-11-24 22:07:35,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:07:35,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665252006] [2023-11-24 22:07:35,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:35,378 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:35,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:07:35,379 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 22:07:35,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5178323f-f8ad-4e56-a101-f465bdddc098/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-24 22:07:35,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat