./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB --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 c2bb9f0c15e3c3296f863c26b4377b27546cf1c417a60e9663a6ff48eb617ef8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:03:55,726 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:03:55,814 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 04:03:55,820 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:03:55,821 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:03:55,846 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:03:55,847 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:03:55,848 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:03:55,848 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:03:55,848 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:03:55,848 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:03:55,848 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:03:55,849 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:03:55,849 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:03:55,849 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:03:55,849 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:03:55,849 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:03:55,850 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:03:55,850 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:03:55,850 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:03:55,850 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:03:55,850 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:03:55,850 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:03:55,850 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:03:55,851 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:03:55,851 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:03:55,851 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:03:55,851 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:03:55,851 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:03:55,851 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:03:55,851 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:03:55,852 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:03:55,852 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:03:55,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:03:55,852 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:03:55,852 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:03:55,852 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:03:55,852 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:03:55,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:03:55,852 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:03:55,853 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:03:55,853 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:03:55,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:03:55,853 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:03:55,853 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:03:55,853 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:03:55,853 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:03:55,853 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB 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 -> c2bb9f0c15e3c3296f863c26b4377b27546cf1c417a60e9663a6ff48eb617ef8 [2024-11-28 04:03:56,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:03:56,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:03:56,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:03:56,228 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:03:56,229 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:03:56,232 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.i [2024-11-28 04:03:59,507 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/data/c13a338b6/af96b364256a466b9052dbe3b5d5ee1e/FLAG6c36f45b2 [2024-11-28 04:03:59,926 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:03:59,927 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.i [2024-11-28 04:03:59,946 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/data/c13a338b6/af96b364256a466b9052dbe3b5d5ee1e/FLAG6c36f45b2 [2024-11-28 04:03:59,964 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/data/c13a338b6/af96b364256a466b9052dbe3b5d5ee1e [2024-11-28 04:03:59,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:03:59,969 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:03:59,971 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:03:59,971 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:03:59,977 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:03:59,978 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:03:59" (1/1) ... [2024-11-28 04:03:59,979 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ad82dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:59, skipping insertion in model container [2024-11-28 04:03:59,979 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:03:59" (1/1) ... [2024-11-28 04:04:00,031 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:04:00,543 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:00,616 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:00,621 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:00,626 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:00,638 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:00,681 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:00,681 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:00,685 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:00,685 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:00,689 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:00,691 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:00,693 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:00,694 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:00,700 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:00,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:04:00,734 ERROR L321 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) [2024-11-28 04:04:00,734 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@54b210e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:00, skipping insertion in model container [2024-11-28 04:04:00,735 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:04:00,735 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 04:04:00,741 INFO L158 Benchmark]: Toolchain (without parser) took 767.33ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 71.1MB in the end (delta: 19.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 04:04:00,744 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 72.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:04:00,745 INFO L158 Benchmark]: CACSL2BoogieTranslator took 764.08ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 71.1MB in the end (delta: 19.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 04:04:00,748 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 72.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 764.08ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 71.1MB in the end (delta: 19.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 727]: 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB --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 c2bb9f0c15e3c3296f863c26b4377b27546cf1c417a60e9663a6ff48eb617ef8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:04:03,587 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:04:03,767 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-28 04:04:03,777 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:04:03,777 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:04:03,822 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:04:03,823 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:04:03,823 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:04:03,824 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:04:03,824 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:04:03,824 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:04:03,824 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:04:03,824 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:04:03,824 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:04:03,825 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:04:03,825 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:04:03,825 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:04:03,825 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:04:03,828 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:04:03,828 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:04:03,828 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:04:03,828 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:04:03,829 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:04:03,829 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:04:03,829 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:04:03,829 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 04:04:03,830 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 04:04:03,830 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:04:03,830 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:04:03,830 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:04:03,831 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:04:03,831 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:04:03,831 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:04:03,832 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:04:03,832 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:04:03,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:04:03,833 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:04:03,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:04:03,833 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:04:03,833 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:04:03,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:04:03,833 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:04:03,834 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:04:03,834 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 04:04:03,834 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 04:04:03,834 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:04:03,834 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:04:03,834 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:04:03,834 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:04:03,836 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB 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 -> c2bb9f0c15e3c3296f863c26b4377b27546cf1c417a60e9663a6ff48eb617ef8 [2024-11-28 04:04:04,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:04:04,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:04:04,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:04:04,264 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:04:04,264 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:04:04,266 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.i [2024-11-28 04:04:07,309 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/data/3313649f0/8725ef30add8436dabf05b3fb08d03ee/FLAG51fba0e36 [2024-11-28 04:04:07,752 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:04:07,753 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.i [2024-11-28 04:04:07,782 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/data/3313649f0/8725ef30add8436dabf05b3fb08d03ee/FLAG51fba0e36 [2024-11-28 04:04:07,811 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/data/3313649f0/8725ef30add8436dabf05b3fb08d03ee [2024-11-28 04:04:07,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:04:07,818 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:04:07,821 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:04:07,822 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:04:07,827 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:04:07,828 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:04:07" (1/1) ... [2024-11-28 04:04:07,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ac5e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:07, skipping insertion in model container [2024-11-28 04:04:07,832 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:04:07" (1/1) ... [2024-11-28 04:04:07,905 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:04:08,474 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,518 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,523 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,528 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,539 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,593 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,594 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,597 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,597 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,601 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,603 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,605 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,606 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,611 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:04:08,633 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-28 04:04:08,644 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:04:08,676 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,701 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,704 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,709 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,720 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,786 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,786 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,789 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,789 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,818 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,819 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,820 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,821 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,825 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:04:08,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:04:08,834 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:04:08,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:04:09,034 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:04:09,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:09 WrapperNode [2024-11-28 04:04:09,035 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:04:09,036 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:04:09,036 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:04:09,036 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:04:09,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:09" (1/1) ... [2024-11-28 04:04:09,073 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:09" (1/1) ... [2024-11-28 04:04:09,126 INFO L138 Inliner]: procedures = 179, calls = 272, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1002 [2024-11-28 04:04:09,127 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:04:09,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:04:09,128 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:04:09,128 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:04:09,140 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:09" (1/1) ... [2024-11-28 04:04:09,141 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:09" (1/1) ... [2024-11-28 04:04:09,160 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:09" (1/1) ... [2024-11-28 04:04:09,264 INFO L175 MemorySlicer]: Split 253 memory accesses to 3 slices as follows [2, 217, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2024-11-28 04:04:09,264 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:09" (1/1) ... [2024-11-28 04:04:09,268 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:09" (1/1) ... [2024-11-28 04:04:09,354 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:09" (1/1) ... [2024-11-28 04:04:09,360 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:09" (1/1) ... [2024-11-28 04:04:09,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:09" (1/1) ... [2024-11-28 04:04:09,383 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:09" (1/1) ... [2024-11-28 04:04:09,390 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:09" (1/1) ... [2024-11-28 04:04:09,406 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:04:09,413 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:04:09,413 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:04:09,413 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:04:09,414 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:09" (1/1) ... [2024-11-28 04:04:09,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:04:09,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:09,459 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:04:09,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:04:09,498 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-28 04:04:09,500 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-28 04:04:09,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 04:04:09,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 04:04:09,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-28 04:04:09,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 04:04:09,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 04:04:09,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 04:04:09,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 04:04:09,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 04:04:09,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 04:04:09,502 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 04:04:09,502 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 04:04:09,502 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 04:04:09,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:04:09,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:04:09,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:04:09,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:04:09,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 04:04:09,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:04:09,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:04:09,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:04:09,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 04:04:09,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:04:09,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 04:04:09,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 04:04:09,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 04:04:09,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 04:04:09,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 04:04:09,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 04:04:09,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:04:09,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:04:09,860 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:04:09,863 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:04:09,893 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:04:09,940 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:04:09,973 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:04:15,429 INFO L? ?]: Removed 1074 outVars from TransFormulas that were not future-live. [2024-11-28 04:04:15,429 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:04:15,476 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:04:15,481 INFO L312 CfgBuilder]: Removed 36 assume(true) statements. [2024-11-28 04:04:15,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:04:15 BoogieIcfgContainer [2024-11-28 04:04:15,481 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:04:15,484 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:04:15,487 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:04:15,498 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:04:15,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:04:07" (1/3) ... [2024-11-28 04:04:15,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b18ef54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:04:15, skipping insertion in model container [2024-11-28 04:04:15,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:09" (2/3) ... [2024-11-28 04:04:15,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b18ef54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:04:15, skipping insertion in model container [2024-11-28 04:04:15,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:04:15" (3/3) ... [2024-11-28 04:04:15,501 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test7-1.i [2024-11-28 04:04:15,519 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:04:15,520 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test7-1.i that has 5 procedures, 1063 locations, 1 initial locations, 38 loop locations, and 523 error locations. [2024-11-28 04:04:15,586 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:04:15,601 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7d01d1da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:04:15,601 INFO L334 AbstractCegarLoop]: Starting to check reachability of 523 error locations. [2024-11-28 04:04:15,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 1053 states, 525 states have (on average 2.224761904761905) internal successors, (1168), 1046 states have internal predecessors, (1168), 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) [2024-11-28 04:04:15,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-28 04:04:15,613 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:15,614 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-28 04:04:15,615 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:04:15,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:15,620 INFO L85 PathProgramCache]: Analyzing trace with hash 65605, now seen corresponding path program 1 times [2024-11-28 04:04:15,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:15,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [936276603] [2024-11-28 04:04:15,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:15,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:15,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:15,637 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:15,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:04:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:15,845 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:04:15,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:15,894 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 [2024-11-28 04:04:15,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:15,917 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:15,918 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:15,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936276603] [2024-11-28 04:04:15,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936276603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:15,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:15,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:04:15,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741510747] [2024-11-28 04:04:15,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:15,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:04:15,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:15,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:04:15,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:04:15,962 INFO L87 Difference]: Start difference. First operand has 1053 states, 525 states have (on average 2.224761904761905) internal successors, (1168), 1046 states have internal predecessors, (1168), 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 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:17,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:17,975 INFO L93 Difference]: Finished difference Result 1044 states and 1100 transitions. [2024-11-28 04:04:17,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:04:17,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-28 04:04:17,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:17,992 INFO L225 Difference]: With dead ends: 1044 [2024-11-28 04:04:17,993 INFO L226 Difference]: Without dead ends: 1042 [2024-11-28 04:04:17,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:04:17,998 INFO L435 NwaCegarLoop]: 623 mSDtfsCounter, 958 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:17,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 681 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 04:04:18,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2024-11-28 04:04:18,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1034. [2024-11-28 04:04:18,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 525 states have (on average 2.060952380952381) internal successors, (1082), 1028 states have internal predecessors, (1082), 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) [2024-11-28 04:04:18,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1090 transitions. [2024-11-28 04:04:18,081 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1090 transitions. Word has length 3 [2024-11-28 04:04:18,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:18,082 INFO L471 AbstractCegarLoop]: Abstraction has 1034 states and 1090 transitions. [2024-11-28 04:04:18,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:18,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1090 transitions. [2024-11-28 04:04:18,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-28 04:04:18,083 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:18,083 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-28 04:04:18,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:04:18,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:18,287 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:04:18,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:18,288 INFO L85 PathProgramCache]: Analyzing trace with hash 65606, now seen corresponding path program 1 times [2024-11-28 04:04:18,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:18,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1513103010] [2024-11-28 04:04:18,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:18,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:18,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:18,291 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:18,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:04:18,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:18,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:04:18,435 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:18,450 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 [2024-11-28 04:04:18,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:18,467 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:18,467 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:18,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513103010] [2024-11-28 04:04:18,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513103010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:18,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:18,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:04:18,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553629728] [2024-11-28 04:04:18,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:18,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:04:18,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:18,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:04:18,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:04:18,470 INFO L87 Difference]: Start difference. First operand 1034 states and 1090 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:21,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:21,641 INFO L93 Difference]: Finished difference Result 1432 states and 1520 transitions. [2024-11-28 04:04:21,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:04:21,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-28 04:04:21,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:21,647 INFO L225 Difference]: With dead ends: 1432 [2024-11-28 04:04:21,648 INFO L226 Difference]: Without dead ends: 1432 [2024-11-28 04:04:21,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:04:21,649 INFO L435 NwaCegarLoop]: 894 mSDtfsCounter, 427 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:21,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 1462 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-28 04:04:21,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2024-11-28 04:04:21,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1243. [2024-11-28 04:04:21,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 735 states have (on average 2.0476190476190474) internal successors, (1505), 1237 states have internal predecessors, (1505), 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) [2024-11-28 04:04:21,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1513 transitions. [2024-11-28 04:04:21,689 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1513 transitions. Word has length 3 [2024-11-28 04:04:21,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:21,690 INFO L471 AbstractCegarLoop]: Abstraction has 1243 states and 1513 transitions. [2024-11-28 04:04:21,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:21,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1513 transitions. [2024-11-28 04:04:21,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 04:04:21,690 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:21,690 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:21,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:04:21,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:21,891 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:04:21,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:21,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1329215633, now seen corresponding path program 1 times [2024-11-28 04:04:21,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:21,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [738797709] [2024-11-28 04:04:21,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:21,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:21,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:21,896 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:21,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:04:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:22,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:04:22,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:22,057 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 [2024-11-28 04:04:22,164 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2024-11-28 04:04:22,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2024-11-28 04:04:22,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:22,285 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:22,286 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:22,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738797709] [2024-11-28 04:04:22,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738797709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:22,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:22,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:04:22,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814809528] [2024-11-28 04:04:22,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:22,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:04:22,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:22,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:04:22,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:04:22,288 INFO L87 Difference]: Start difference. First operand 1243 states and 1513 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:28,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:28,226 INFO L93 Difference]: Finished difference Result 2116 states and 2252 transitions. [2024-11-28 04:04:28,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:04:28,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2024-11-28 04:04:28,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:28,236 INFO L225 Difference]: With dead ends: 2116 [2024-11-28 04:04:28,236 INFO L226 Difference]: Without dead ends: 2116 [2024-11-28 04:04:28,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:04:28,237 INFO L435 NwaCegarLoop]: 1003 mSDtfsCounter, 1148 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 2139 SdHoareTripleChecker+Invalid, 1550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:28,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 2139 Invalid, 1550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-28 04:04:28,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2024-11-28 04:04:28,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 1392. [2024-11-28 04:04:28,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 884 states have (on average 2.0271493212669682) internal successors, (1792), 1386 states have internal predecessors, (1792), 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) [2024-11-28 04:04:28,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1800 transitions. [2024-11-28 04:04:28,282 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1800 transitions. Word has length 8 [2024-11-28 04:04:28,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:28,282 INFO L471 AbstractCegarLoop]: Abstraction has 1392 states and 1800 transitions. [2024-11-28 04:04:28,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:28,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1800 transitions. [2024-11-28 04:04:28,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 04:04:28,283 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:28,283 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:28,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:28,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:28,484 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:04:28,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:28,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1743988334, now seen corresponding path program 1 times [2024-11-28 04:04:28,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:28,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1476749538] [2024-11-28 04:04:28,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:28,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:28,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:28,489 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:28,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:04:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:28,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:04:28,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:28,648 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 [2024-11-28 04:04:28,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:28,667 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:28,667 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:28,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476749538] [2024-11-28 04:04:28,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476749538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:28,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:28,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:04:28,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591994970] [2024-11-28 04:04:28,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:28,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:04:28,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:28,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:04:28,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:04:28,672 INFO L87 Difference]: Start difference. First operand 1392 states and 1800 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:31,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:31,047 INFO L93 Difference]: Finished difference Result 1929 states and 2563 transitions. [2024-11-28 04:04:31,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:04:31,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2024-11-28 04:04:31,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:31,062 INFO L225 Difference]: With dead ends: 1929 [2024-11-28 04:04:31,062 INFO L226 Difference]: Without dead ends: 1929 [2024-11-28 04:04:31,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:04:31,063 INFO L435 NwaCegarLoop]: 952 mSDtfsCounter, 935 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:31,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 1201 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 04:04:31,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1929 states. [2024-11-28 04:04:31,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1929 to 1345. [2024-11-28 04:04:31,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 884 states have (on average 1.9615384615384615) internal successors, (1734), 1339 states have internal predecessors, (1734), 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) [2024-11-28 04:04:31,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1742 transitions. [2024-11-28 04:04:31,105 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1742 transitions. Word has length 9 [2024-11-28 04:04:31,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:31,106 INFO L471 AbstractCegarLoop]: Abstraction has 1345 states and 1742 transitions. [2024-11-28 04:04:31,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:31,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1742 transitions. [2024-11-28 04:04:31,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 04:04:31,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:31,106 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:31,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:04:31,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:31,307 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:04:31,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:31,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1743988333, now seen corresponding path program 1 times [2024-11-28 04:04:31,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:31,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [367923183] [2024-11-28 04:04:31,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:31,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:31,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:31,310 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:31,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:04:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:31,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:04:31,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:31,463 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 [2024-11-28 04:04:31,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:31,509 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:31,509 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:31,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367923183] [2024-11-28 04:04:31,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367923183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:31,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:31,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:04:31,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699657672] [2024-11-28 04:04:31,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:31,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:04:31,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:31,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:04:31,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:04:31,510 INFO L87 Difference]: Start difference. First operand 1345 states and 1742 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:34,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:34,796 INFO L93 Difference]: Finished difference Result 2037 states and 2670 transitions. [2024-11-28 04:04:34,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:04:34,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2024-11-28 04:04:34,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:34,804 INFO L225 Difference]: With dead ends: 2037 [2024-11-28 04:04:34,804 INFO L226 Difference]: Without dead ends: 2037 [2024-11-28 04:04:34,804 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:04:34,805 INFO L435 NwaCegarLoop]: 1141 mSDtfsCounter, 704 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 1560 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:34,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 1560 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-28 04:04:34,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2037 states. [2024-11-28 04:04:34,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2037 to 1372. [2024-11-28 04:04:34,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 921 states have (on average 1.9402823018458197) internal successors, (1787), 1366 states have internal predecessors, (1787), 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) [2024-11-28 04:04:34,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1795 transitions. [2024-11-28 04:04:34,844 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 1795 transitions. Word has length 9 [2024-11-28 04:04:34,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:34,844 INFO L471 AbstractCegarLoop]: Abstraction has 1372 states and 1795 transitions. [2024-11-28 04:04:34,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:34,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 1795 transitions. [2024-11-28 04:04:34,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-28 04:04:34,845 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:34,845 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:34,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:35,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:35,046 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:04:35,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:35,046 INFO L85 PathProgramCache]: Analyzing trace with hash 174124425, now seen corresponding path program 1 times [2024-11-28 04:04:35,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:35,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2100100615] [2024-11-28 04:04:35,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:35,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:35,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:35,049 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:35,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:04:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:35,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:04:35,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:35,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:35,310 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:35,310 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:35,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100100615] [2024-11-28 04:04:35,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100100615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:35,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:35,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:04:35,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485876199] [2024-11-28 04:04:35,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:35,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:04:35,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:35,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:04:35,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:04:35,313 INFO L87 Difference]: Start difference. First operand 1372 states and 1795 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:36,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:36,297 INFO L93 Difference]: Finished difference Result 1815 states and 2343 transitions. [2024-11-28 04:04:36,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:04:36,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-28 04:04:36,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:36,304 INFO L225 Difference]: With dead ends: 1815 [2024-11-28 04:04:36,305 INFO L226 Difference]: Without dead ends: 1815 [2024-11-28 04:04:36,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:04:36,306 INFO L435 NwaCegarLoop]: 1092 mSDtfsCounter, 454 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 3028 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:36,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 3028 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:04:36,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2024-11-28 04:04:36,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 1624. [2024-11-28 04:04:36,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1173 states have (on average 1.9573742540494459) internal successors, (2296), 1618 states have internal predecessors, (2296), 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) [2024-11-28 04:04:36,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2304 transitions. [2024-11-28 04:04:36,352 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2304 transitions. Word has length 13 [2024-11-28 04:04:36,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:36,352 INFO L471 AbstractCegarLoop]: Abstraction has 1624 states and 2304 transitions. [2024-11-28 04:04:36,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:36,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2304 transitions. [2024-11-28 04:04:36,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 04:04:36,354 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:36,354 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:36,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 04:04:36,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:36,558 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr521ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:04:36,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:36,559 INFO L85 PathProgramCache]: Analyzing trace with hash -825663860, now seen corresponding path program 1 times [2024-11-28 04:04:36,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:36,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1224278229] [2024-11-28 04:04:36,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:36,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:36,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:36,563 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:36,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:04:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:36,746 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:04:36,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:36,760 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:04:36,761 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:04:36,769 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 33 treesize of output 31 [2024-11-28 04:04:36,833 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:36,834 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 62 treesize of output 22 [2024-11-28 04:04:36,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:36,863 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:36,863 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:36,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224278229] [2024-11-28 04:04:36,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224278229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:36,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:36,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:04:36,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884107053] [2024-11-28 04:04:36,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:36,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:04:36,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:36,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:04:36,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:04:36,865 INFO L87 Difference]: Start difference. First operand 1624 states and 2304 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:37,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:37,628 INFO L93 Difference]: Finished difference Result 2161 states and 2576 transitions. [2024-11-28 04:04:37,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:04:37,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2024-11-28 04:04:37,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:37,637 INFO L225 Difference]: With dead ends: 2161 [2024-11-28 04:04:37,637 INFO L226 Difference]: Without dead ends: 2161 [2024-11-28 04:04:37,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:04:37,638 INFO L435 NwaCegarLoop]: 978 mSDtfsCounter, 945 mSDsluCounter, 1942 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 2920 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:37,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [948 Valid, 2920 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:04:37,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2024-11-28 04:04:37,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 1259. [2024-11-28 04:04:37,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 808 states have (on average 1.931930693069307) internal successors, (1561), 1253 states have internal predecessors, (1561), 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) [2024-11-28 04:04:37,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1569 transitions. [2024-11-28 04:04:37,673 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1569 transitions. Word has length 12 [2024-11-28 04:04:37,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:37,673 INFO L471 AbstractCegarLoop]: Abstraction has 1259 states and 1569 transitions. [2024-11-28 04:04:37,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:37,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1569 transitions. [2024-11-28 04:04:37,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 04:04:37,674 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:37,674 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:37,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:37,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:37,875 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:04:37,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:37,875 INFO L85 PathProgramCache]: Analyzing trace with hash 495195041, now seen corresponding path program 1 times [2024-11-28 04:04:37,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:37,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2074070066] [2024-11-28 04:04:37,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:37,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:37,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:37,880 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:37,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:04:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:38,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:04:38,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:38,097 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 [2024-11-28 04:04:38,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:38,177 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:38,177 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:38,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074070066] [2024-11-28 04:04:38,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074070066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:38,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:38,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:04:38,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362666299] [2024-11-28 04:04:38,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:38,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:04:38,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:38,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:04:38,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:04:38,178 INFO L87 Difference]: Start difference. First operand 1259 states and 1569 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:41,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:41,462 INFO L93 Difference]: Finished difference Result 1702 states and 2114 transitions. [2024-11-28 04:04:41,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:04:41,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-28 04:04:41,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:41,469 INFO L225 Difference]: With dead ends: 1702 [2024-11-28 04:04:41,469 INFO L226 Difference]: Without dead ends: 1702 [2024-11-28 04:04:41,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:04:41,470 INFO L435 NwaCegarLoop]: 526 mSDtfsCounter, 982 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:41,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 1222 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-28 04:04:41,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2024-11-28 04:04:41,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1236. [2024-11-28 04:04:41,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1236 states, 808 states have (on average 1.875) internal successors, (1515), 1230 states have internal predecessors, (1515), 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) [2024-11-28 04:04:41,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 1523 transitions. [2024-11-28 04:04:41,526 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 1523 transitions. Word has length 19 [2024-11-28 04:04:41,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:41,527 INFO L471 AbstractCegarLoop]: Abstraction has 1236 states and 1523 transitions. [2024-11-28 04:04:41,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:41,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 1523 transitions. [2024-11-28 04:04:41,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 04:04:41,528 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:41,529 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:41,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 04:04:41,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:41,730 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:04:41,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:41,731 INFO L85 PathProgramCache]: Analyzing trace with hash 495195042, now seen corresponding path program 1 times [2024-11-28 04:04:41,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:41,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1237964274] [2024-11-28 04:04:41,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:41,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:41,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:41,735 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:41,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:04:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:41,942 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:04:41,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:41,963 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 [2024-11-28 04:04:42,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:42,147 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:42,147 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:42,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237964274] [2024-11-28 04:04:42,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237964274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:42,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:42,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:04:42,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956500966] [2024-11-28 04:04:42,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:42,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:04:42,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:42,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:04:42,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:04:42,149 INFO L87 Difference]: Start difference. First operand 1236 states and 1523 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:47,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:47,406 INFO L93 Difference]: Finished difference Result 1980 states and 2446 transitions. [2024-11-28 04:04:47,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:04:47,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-28 04:04:47,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:47,410 INFO L225 Difference]: With dead ends: 1980 [2024-11-28 04:04:47,410 INFO L226 Difference]: Without dead ends: 1980 [2024-11-28 04:04:47,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:04:47,411 INFO L435 NwaCegarLoop]: 1206 mSDtfsCounter, 825 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 2417 SdHoareTripleChecker+Invalid, 1491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:47,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 2417 Invalid, 1491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-28 04:04:47,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1980 states. [2024-11-28 04:04:47,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1980 to 1352. [2024-11-28 04:04:47,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1352 states, 924 states have (on average 1.7911255411255411) internal successors, (1655), 1346 states have internal predecessors, (1655), 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) [2024-11-28 04:04:47,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1663 transitions. [2024-11-28 04:04:47,442 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1663 transitions. Word has length 19 [2024-11-28 04:04:47,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:47,443 INFO L471 AbstractCegarLoop]: Abstraction has 1352 states and 1663 transitions. [2024-11-28 04:04:47,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:47,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1663 transitions. [2024-11-28 04:04:47,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 04:04:47,444 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:47,444 INFO L218 NwaCegarLoop]: trace histogram [2, 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] [2024-11-28 04:04:47,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:47,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:47,648 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:04:47,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:47,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1991006148, now seen corresponding path program 1 times [2024-11-28 04:04:47,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:47,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1770367430] [2024-11-28 04:04:47,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:47,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:47,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:47,651 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:47,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:04:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:47,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:04:47,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:47,931 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 [2024-11-28 04:04:48,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:48,295 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:49,151 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:49,151 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:49,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770367430] [2024-11-28 04:04:49,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770367430] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:04:49,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:04:49,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-28 04:04:49,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355329703] [2024-11-28 04:04:49,151 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:04:49,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:04:49,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:49,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:04:49,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:04:49,153 INFO L87 Difference]: Start difference. First operand 1352 states and 1663 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:02,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:02,308 INFO L93 Difference]: Finished difference Result 2342 states and 2942 transitions. [2024-11-28 04:05:02,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:05:02,309 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 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 38 [2024-11-28 04:05:02,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:02,314 INFO L225 Difference]: With dead ends: 2342 [2024-11-28 04:05:02,314 INFO L226 Difference]: Without dead ends: 2342 [2024-11-28 04:05:02,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:05:02,315 INFO L435 NwaCegarLoop]: 1234 mSDtfsCounter, 1597 mSDsluCounter, 2506 mSDsCounter, 0 mSdLazyCounter, 2699 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1598 SdHoareTripleChecker+Valid, 3740 SdHoareTripleChecker+Invalid, 2726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:02,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1598 Valid, 3740 Invalid, 2726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2699 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2024-11-28 04:05:02,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2342 states. [2024-11-28 04:05:02,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2342 to 1518. [2024-11-28 04:05:02,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1090 states have (on average 1.7330275229357799) internal successors, (1889), 1512 states have internal predecessors, (1889), 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) [2024-11-28 04:05:02,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 1897 transitions. [2024-11-28 04:05:02,368 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 1897 transitions. Word has length 38 [2024-11-28 04:05:02,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:02,369 INFO L471 AbstractCegarLoop]: Abstraction has 1518 states and 1897 transitions. [2024-11-28 04:05:02,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:02,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 1897 transitions. [2024-11-28 04:05:02,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-28 04:05:02,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:02,372 INFO L218 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, 1, 1, 1] [2024-11-28 04:05:02,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 04:05:02,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:02,574 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:05:02,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:02,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1728836185, now seen corresponding path program 1 times [2024-11-28 04:05:02,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:05:02,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1277939340] [2024-11-28 04:05:02,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:02,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:02,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:02,578 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:02,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:05:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:02,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:05:02,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:02,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:02,919 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:05:02,919 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:05:02,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277939340] [2024-11-28 04:05:02,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277939340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:02,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:02,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:05:02,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778834589] [2024-11-28 04:05:02,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:02,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:05:02,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:05:02,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:05:02,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:05:02,921 INFO L87 Difference]: Start difference. First operand 1518 states and 1897 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:03,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:03,039 INFO L93 Difference]: Finished difference Result 1203 states and 1457 transitions. [2024-11-28 04:05:03,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:05:03,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 54 [2024-11-28 04:05:03,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:03,042 INFO L225 Difference]: With dead ends: 1203 [2024-11-28 04:05:03,042 INFO L226 Difference]: Without dead ends: 1203 [2024-11-28 04:05:03,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:05:03,043 INFO L435 NwaCegarLoop]: 938 mSDtfsCounter, 56 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:03,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 2741 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:05:03,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2024-11-28 04:05:03,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1201. [2024-11-28 04:05:03,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 796 states have (on average 1.8178391959798994) internal successors, (1447), 1195 states have internal predecessors, (1447), 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) [2024-11-28 04:05:03,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1455 transitions. [2024-11-28 04:05:03,064 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1455 transitions. Word has length 54 [2024-11-28 04:05:03,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:03,066 INFO L471 AbstractCegarLoop]: Abstraction has 1201 states and 1455 transitions. [2024-11-28 04:05:03,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:03,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1455 transitions. [2024-11-28 04:05:03,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 04:05:03,069 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:03,069 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:03,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 04:05:03,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:03,270 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:05:03,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:03,271 INFO L85 PathProgramCache]: Analyzing trace with hash 199933403, now seen corresponding path program 1 times [2024-11-28 04:05:03,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:05:03,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [558668688] [2024-11-28 04:05:03,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:03,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:03,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:03,273 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:03,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:05:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:03,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:05:03,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:03,563 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 [2024-11-28 04:05:04,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:05:04,272 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 [2024-11-28 04:05:04,292 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:05:04,292 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 [2024-11-28 04:05:04,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:04,297 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:05:04,297 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:05:04,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558668688] [2024-11-28 04:05:04,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558668688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:04,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:04,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:05:04,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451517966] [2024-11-28 04:05:04,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:04,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:05:04,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:05:04,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:05:04,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:05:04,299 INFO L87 Difference]: Start difference. First operand 1201 states and 1455 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:08,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:08,420 INFO L93 Difference]: Finished difference Result 1621 states and 2000 transitions. [2024-11-28 04:05:08,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:05:08,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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 62 [2024-11-28 04:05:08,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:08,425 INFO L225 Difference]: With dead ends: 1621 [2024-11-28 04:05:08,426 INFO L226 Difference]: Without dead ends: 1621 [2024-11-28 04:05:08,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:05:08,426 INFO L435 NwaCegarLoop]: 329 mSDtfsCounter, 1301 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 1497 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:08,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1304 Valid, 755 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1497 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-28 04:05:08,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1621 states. [2024-11-28 04:05:08,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1621 to 1126. [2024-11-28 04:05:08,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 759 states have (on average 1.7588932806324111) internal successors, (1335), 1120 states have internal predecessors, (1335), 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) [2024-11-28 04:05:08,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1343 transitions. [2024-11-28 04:05:08,443 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1343 transitions. Word has length 62 [2024-11-28 04:05:08,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:08,444 INFO L471 AbstractCegarLoop]: Abstraction has 1126 states and 1343 transitions. [2024-11-28 04:05:08,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:08,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1343 transitions. [2024-11-28 04:05:08,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 04:05:08,445 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:08,445 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:08,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 04:05:08,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:08,646 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:05:08,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:08,646 INFO L85 PathProgramCache]: Analyzing trace with hash -543313183, now seen corresponding path program 1 times [2024-11-28 04:05:08,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:05:08,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1627760140] [2024-11-28 04:05:08,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:08,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:08,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:08,649 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:08,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:05:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:08,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:05:08,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:08,908 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 [2024-11-28 04:05:08,931 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 19 treesize of output 1 [2024-11-28 04:05:08,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 04:05:08,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:08,989 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:05:08,989 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:05:08,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627760140] [2024-11-28 04:05:08,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627760140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:08,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:08,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:05:08,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155317053] [2024-11-28 04:05:08,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:08,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:05:08,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:05:08,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:05:08,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:05:08,991 INFO L87 Difference]: Start difference. First operand 1126 states and 1343 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:11,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:11,934 INFO L93 Difference]: Finished difference Result 1125 states and 1342 transitions. [2024-11-28 04:05:11,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:05:11,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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 67 [2024-11-28 04:05:11,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:11,937 INFO L225 Difference]: With dead ends: 1125 [2024-11-28 04:05:11,937 INFO L226 Difference]: Without dead ends: 1125 [2024-11-28 04:05:11,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:05:11,938 INFO L435 NwaCegarLoop]: 911 mSDtfsCounter, 2 mSDsluCounter, 1456 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2367 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:11,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2367 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 04:05:11,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2024-11-28 04:05:11,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 1125. [2024-11-28 04:05:11,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 759 states have (on average 1.7575757575757576) internal successors, (1334), 1119 states have internal predecessors, (1334), 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) [2024-11-28 04:05:11,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1342 transitions. [2024-11-28 04:05:11,950 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1342 transitions. Word has length 67 [2024-11-28 04:05:11,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:11,950 INFO L471 AbstractCegarLoop]: Abstraction has 1125 states and 1342 transitions. [2024-11-28 04:05:11,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:11,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1342 transitions. [2024-11-28 04:05:11,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 04:05:11,951 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:11,951 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:11,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 04:05:12,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:12,152 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:05:12,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:12,153 INFO L85 PathProgramCache]: Analyzing trace with hash -543313182, now seen corresponding path program 1 times [2024-11-28 04:05:12,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:05:12,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [183866459] [2024-11-28 04:05:12,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:12,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:12,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:12,155 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:12,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:05:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:12,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:05:12,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:12,424 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 [2024-11-28 04:05:12,445 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 19 treesize of output 1 [2024-11-28 04:05:12,451 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 13 treesize of output 9 [2024-11-28 04:05:12,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 04:05:12,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:12,539 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:05:12,539 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:05:12,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183866459] [2024-11-28 04:05:12,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183866459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:12,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:12,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:05:12,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304542876] [2024-11-28 04:05:12,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:12,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:05:12,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:05:12,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:05:12,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:05:12,540 INFO L87 Difference]: Start difference. First operand 1125 states and 1342 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:16,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:16,295 INFO L93 Difference]: Finished difference Result 1124 states and 1341 transitions. [2024-11-28 04:05:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:05:16,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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 67 [2024-11-28 04:05:16,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:16,299 INFO L225 Difference]: With dead ends: 1124 [2024-11-28 04:05:16,299 INFO L226 Difference]: Without dead ends: 1124 [2024-11-28 04:05:16,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:05:16,300 INFO L435 NwaCegarLoop]: 911 mSDtfsCounter, 1 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2372 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:16,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2372 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-28 04:05:16,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2024-11-28 04:05:16,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1124. [2024-11-28 04:05:16,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 758 states have (on average 1.7585751978891822) internal successors, (1333), 1118 states have internal predecessors, (1333), 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) [2024-11-28 04:05:16,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1341 transitions. [2024-11-28 04:05:16,316 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1341 transitions. Word has length 67 [2024-11-28 04:05:16,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:16,316 INFO L471 AbstractCegarLoop]: Abstraction has 1124 states and 1341 transitions. [2024-11-28 04:05:16,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:16,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1341 transitions. [2024-11-28 04:05:16,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 04:05:16,317 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:16,317 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:16,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-28 04:05:16,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:16,518 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:05:16,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:16,518 INFO L85 PathProgramCache]: Analyzing trace with hash 161452936, now seen corresponding path program 1 times [2024-11-28 04:05:16,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:05:16,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1489672051] [2024-11-28 04:05:16,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:16,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:16,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:16,520 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:16,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:05:16,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:16,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:05:16,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:16,788 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 19 treesize of output 1 [2024-11-28 04:05:16,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 04:05:16,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:16,884 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:05:16,884 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:05:16,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489672051] [2024-11-28 04:05:16,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489672051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:16,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:16,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:05:16,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689437768] [2024-11-28 04:05:16,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:16,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:05:16,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:05:16,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:05:16,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:05:16,886 INFO L87 Difference]: Start difference. First operand 1124 states and 1341 transitions. Second operand has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:05:20,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:20,992 INFO L93 Difference]: Finished difference Result 1136 states and 1356 transitions. [2024-11-28 04:05:20,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:05:20,992 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2024-11-28 04:05:20,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:20,997 INFO L225 Difference]: With dead ends: 1136 [2024-11-28 04:05:20,997 INFO L226 Difference]: Without dead ends: 1136 [2024-11-28 04:05:20,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:05:20,998 INFO L435 NwaCegarLoop]: 901 mSDtfsCounter, 8 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 1638 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3834 SdHoareTripleChecker+Invalid, 1644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:20,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3834 Invalid, 1644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1638 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-28 04:05:21,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2024-11-28 04:05:21,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 1130. [2024-11-28 04:05:21,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 763 states have (on average 1.7562254259501966) internal successors, (1340), 1123 states have internal predecessors, (1340), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:05:21,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 1351 transitions. [2024-11-28 04:05:21,015 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 1351 transitions. Word has length 75 [2024-11-28 04:05:21,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:21,015 INFO L471 AbstractCegarLoop]: Abstraction has 1130 states and 1351 transitions. [2024-11-28 04:05:21,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:05:21,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 1351 transitions. [2024-11-28 04:05:21,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 04:05:21,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:21,016 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:21,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 04:05:21,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:21,217 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:05:21,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:21,217 INFO L85 PathProgramCache]: Analyzing trace with hash 161452937, now seen corresponding path program 1 times [2024-11-28 04:05:21,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:05:21,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1185689798] [2024-11-28 04:05:21,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:21,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:21,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:21,219 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:21,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:05:21,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:21,507 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:05:21,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:21,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:21,535 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:05:21,535 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:05:21,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185689798] [2024-11-28 04:05:21,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185689798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:21,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:21,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:05:21,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126399412] [2024-11-28 04:05:21,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:21,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:05:21,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:05:21,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:05:21,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:05:21,538 INFO L87 Difference]: Start difference. First operand 1130 states and 1351 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:05:21,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:21,595 INFO L93 Difference]: Finished difference Result 1127 states and 1345 transitions. [2024-11-28 04:05:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:05:21,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2024-11-28 04:05:21,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:21,603 INFO L225 Difference]: With dead ends: 1127 [2024-11-28 04:05:21,603 INFO L226 Difference]: Without dead ends: 1127 [2024-11-28 04:05:21,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:05:21,604 INFO L435 NwaCegarLoop]: 911 mSDtfsCounter, 0 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:21,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2728 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:05:21,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2024-11-28 04:05:21,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2024-11-28 04:05:21,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1127 states, 760 states have (on average 1.7578947368421052) internal successors, (1336), 1121 states have internal predecessors, (1336), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:05:21,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1345 transitions. [2024-11-28 04:05:21,630 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1345 transitions. Word has length 75 [2024-11-28 04:05:21,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:21,631 INFO L471 AbstractCegarLoop]: Abstraction has 1127 states and 1345 transitions. [2024-11-28 04:05:21,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:05:21,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1345 transitions. [2024-11-28 04:05:21,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-28 04:05:21,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:21,632 INFO L218 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, 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] [2024-11-28 04:05:21,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 04:05:21,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:21,835 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:05:21,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:21,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1682867130, now seen corresponding path program 1 times [2024-11-28 04:05:21,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:05:21,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [501446717] [2024-11-28 04:05:21,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:21,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:21,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:21,840 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:21,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:05:22,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:22,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:05:22,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:22,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:22,171 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:22,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:22,253 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:05:22,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501446717] [2024-11-28 04:05:22,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501446717] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:05:22,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:05:22,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-28 04:05:22,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119790716] [2024-11-28 04:05:22,254 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:05:22,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:05:22,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:05:22,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:05:22,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:05:22,256 INFO L87 Difference]: Start difference. First operand 1127 states and 1345 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:05:22,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:22,479 INFO L93 Difference]: Finished difference Result 1139 states and 1362 transitions. [2024-11-28 04:05:22,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:05:22,480 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2024-11-28 04:05:22,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:22,484 INFO L225 Difference]: With dead ends: 1139 [2024-11-28 04:05:22,484 INFO L226 Difference]: Without dead ends: 1139 [2024-11-28 04:05:22,484 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:05:22,485 INFO L435 NwaCegarLoop]: 911 mSDtfsCounter, 5 mSDsluCounter, 4536 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5447 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:22,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5447 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:05:22,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2024-11-28 04:05:22,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1137. [2024-11-28 04:05:22,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 769 states have (on average 1.7568270481144344) internal successors, (1351), 1130 states have internal predecessors, (1351), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:05:22,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1360 transitions. [2024-11-28 04:05:22,520 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1360 transitions. Word has length 76 [2024-11-28 04:05:22,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:22,521 INFO L471 AbstractCegarLoop]: Abstraction has 1137 states and 1360 transitions. [2024-11-28 04:05:22,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:05:22,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1360 transitions. [2024-11-28 04:05:22,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 04:05:22,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:22,523 INFO L218 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:22,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-28 04:05:22,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:22,723 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:05:22,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:22,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1242361848, now seen corresponding path program 2 times [2024-11-28 04:05:22,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:05:22,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1220271427] [2024-11-28 04:05:22,725 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:05:22,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:22,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:22,728 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:22,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:05:55,715 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:05:55,715 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:05:55,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:05:55,735 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:55,866 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:05:55,866 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 [2024-11-28 04:05:55,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:05:56,128 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:05:56,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:05:56,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:05:56,213 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 04:05:56,214 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:56,328 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-28 04:05:56,328 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 25 treesize of output 24 [2024-11-28 04:05:56,339 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1166 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem34#1.base| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_1166) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) is different from false [2024-11-28 04:05:56,342 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:05:56,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220271427] [2024-11-28 04:05:56,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220271427] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:05:56,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1151050857] [2024-11-28 04:05:56,342 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:05:56,342 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:05:56,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:05:56,360 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:05:56,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-28 04:05:57,998 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:05:57,999 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:05:58,033 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:05:58,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:58,192 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:58,193 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:58,604 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:58,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1151050857] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:05:58,604 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:05:58,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24 [2024-11-28 04:05:58,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779832532] [2024-11-28 04:05:58,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:05:58,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 04:05:58,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:05:58,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 04:05:58,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=513, Unknown=1, NotChecked=46, Total=650 [2024-11-28 04:05:58,606 INFO L87 Difference]: Start difference. First operand 1137 states and 1360 transitions. Second operand has 24 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:06:15,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:15,079 INFO L93 Difference]: Finished difference Result 1611 states and 1966 transitions. [2024-11-28 04:06:15,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-28 04:06:15,080 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 79 [2024-11-28 04:06:15,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:15,085 INFO L225 Difference]: With dead ends: 1611 [2024-11-28 04:06:15,085 INFO L226 Difference]: Without dead ends: 1607 [2024-11-28 04:06:15,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=413, Invalid=2242, Unknown=1, NotChecked=100, Total=2756 [2024-11-28 04:06:15,087 INFO L435 NwaCegarLoop]: 506 mSDtfsCounter, 888 mSDsluCounter, 8143 mSDsCounter, 0 mSdLazyCounter, 7732 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 8649 SdHoareTripleChecker+Invalid, 7756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 7732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:15,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 8649 Invalid, 7756 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 7732 Invalid, 0 Unknown, 0 Unchecked, 15.1s Time] [2024-11-28 04:06:15,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2024-11-28 04:06:15,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1145. [2024-11-28 04:06:15,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1145 states, 778 states have (on average 1.750642673521851) internal successors, (1362), 1138 states have internal predecessors, (1362), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:06:15,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1145 states to 1145 states and 1371 transitions. [2024-11-28 04:06:15,116 INFO L78 Accepts]: Start accepts. Automaton has 1145 states and 1371 transitions. Word has length 79 [2024-11-28 04:06:15,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:15,116 INFO L471 AbstractCegarLoop]: Abstraction has 1145 states and 1371 transitions. [2024-11-28 04:06:15,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:06:15,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1145 states and 1371 transitions. [2024-11-28 04:06:15,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-28 04:06:15,118 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:15,118 INFO L218 NwaCegarLoop]: trace histogram [10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:15,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-28 04:06:15,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2024-11-28 04:06:15,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:06:15,519 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:06:15,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:15,519 INFO L85 PathProgramCache]: Analyzing trace with hash 516428489, now seen corresponding path program 1 times [2024-11-28 04:06:15,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:06:15,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [223579347] [2024-11-28 04:06:15,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:15,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:15,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:06:15,522 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:06:15,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 04:06:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:15,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:06:15,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:06:16,209 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:06:16,209 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:06:17,074 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:06:17,075 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:06:17,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223579347] [2024-11-28 04:06:17,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223579347] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:06:17,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:06:17,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-28 04:06:17,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070697087] [2024-11-28 04:06:17,075 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:06:17,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 04:06:17,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:06:17,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 04:06:17,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:06:17,078 INFO L87 Difference]: Start difference. First operand 1145 states and 1371 transitions. Second operand has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:06:19,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:19,709 INFO L93 Difference]: Finished difference Result 1169 states and 1410 transitions. [2024-11-28 04:06:19,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-28 04:06:19,710 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 85 [2024-11-28 04:06:19,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:19,713 INFO L225 Difference]: With dead ends: 1169 [2024-11-28 04:06:19,713 INFO L226 Difference]: Without dead ends: 1163 [2024-11-28 04:06:19,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 04:06:19,717 INFO L435 NwaCegarLoop]: 911 mSDtfsCounter, 25 mSDsluCounter, 11800 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 12711 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:19,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 12711 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:06:19,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2024-11-28 04:06:19,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1163. [2024-11-28 04:06:19,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 796 states have (on average 1.7399497487437185) internal successors, (1385), 1156 states have internal predecessors, (1385), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:06:19,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1394 transitions. [2024-11-28 04:06:19,739 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1394 transitions. Word has length 85 [2024-11-28 04:06:19,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:19,739 INFO L471 AbstractCegarLoop]: Abstraction has 1163 states and 1394 transitions. [2024-11-28 04:06:19,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:06:19,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1394 transitions. [2024-11-28 04:06:19,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 04:06:19,740 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:19,741 INFO L218 NwaCegarLoop]: trace histogram [22, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:19,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-28 04:06:19,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:19,941 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:06:19,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:19,942 INFO L85 PathProgramCache]: Analyzing trace with hash 111601737, now seen corresponding path program 2 times [2024-11-28 04:06:19,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:06:19,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1013213138] [2024-11-28 04:06:19,942 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:06:19,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:19,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:06:19,944 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:06:19,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 04:06:56,655 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:06:56,655 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:06:56,679 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-28 04:06:56,689 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:06:56,874 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 [2024-11-28 04:06:56,897 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:06:56,898 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 [2024-11-28 04:06:56,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:06:56,941 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 13 treesize of output 9 [2024-11-28 04:06:57,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:06:57,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2024-11-28 04:06:57,688 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:06:57,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:06:57,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:06:57,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 04:06:57,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2024-11-28 04:06:57,785 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-28 04:06:57,785 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:06:58,442 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_1793 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1794 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_1794) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_1793) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_1794 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_1794) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv16 32) .cse1) (bvadd (_ bv20 32) .cse1)))))) is different from false [2024-11-28 04:06:58,446 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:06:58,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013213138] [2024-11-28 04:06:58,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013213138] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:06:58,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [377615457] [2024-11-28 04:06:58,447 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:06:58,447 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:06:58,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:06:58,449 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:06:58,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-28 04:07:00,283 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:07:00,283 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:07:00,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 04:07:00,300 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:01,534 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:07:01,534 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:07:04,330 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:07:04,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [377615457] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:07:04,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:07:04,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 26, 26] total 58 [2024-11-28 04:07:04,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59601858] [2024-11-28 04:07:04,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:07:04,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-28 04:07:04,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:07:04,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-28 04:07:04,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=699, Invalid=2844, Unknown=1, NotChecked=116, Total=3660 [2024-11-28 04:07:04,334 INFO L87 Difference]: Start difference. First operand 1163 states and 1394 transitions. Second operand has 58 states, 57 states have (on average 3.1403508771929824) internal successors, (179), 58 states have internal predecessors, (179), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:07:52,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:52,027 INFO L93 Difference]: Finished difference Result 1664 states and 2050 transitions. [2024-11-28 04:07:52,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-11-28 04:07:52,027 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 3.1403508771929824) internal successors, (179), 58 states have internal predecessors, (179), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 97 [2024-11-28 04:07:52,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:52,036 INFO L225 Difference]: With dead ends: 1664 [2024-11-28 04:07:52,037 INFO L226 Difference]: Without dead ends: 1656 [2024-11-28 04:07:52,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 134 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3089 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=3106, Invalid=14987, Unknown=1, NotChecked=266, Total=18360 [2024-11-28 04:07:52,041 INFO L435 NwaCegarLoop]: 508 mSDtfsCounter, 922 mSDsluCounter, 15712 mSDsCounter, 0 mSdLazyCounter, 17908 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 16220 SdHoareTripleChecker+Invalid, 17987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 17908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:52,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 16220 Invalid, 17987 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [79 Valid, 17908 Invalid, 0 Unknown, 0 Unchecked, 37.4s Time] [2024-11-28 04:07:52,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2024-11-28 04:07:52,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1196. [2024-11-28 04:07:52,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1196 states, 830 states have (on average 1.7180722891566265) internal successors, (1426), 1189 states have internal predecessors, (1426), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:07:52,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1196 states to 1196 states and 1435 transitions. [2024-11-28 04:07:52,068 INFO L78 Accepts]: Start accepts. Automaton has 1196 states and 1435 transitions. Word has length 97 [2024-11-28 04:07:52,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:52,069 INFO L471 AbstractCegarLoop]: Abstraction has 1196 states and 1435 transitions. [2024-11-28 04:07:52,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 3.1403508771929824) internal successors, (179), 58 states have internal predecessors, (179), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:07:52,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1196 states and 1435 transitions. [2024-11-28 04:07:52,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 04:07:52,070 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:52,070 INFO L218 NwaCegarLoop]: trace histogram [44, 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, 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] [2024-11-28 04:07:52,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2024-11-28 04:07:52,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 04:07:52,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:52,471 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:07:52,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:52,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1269609854, now seen corresponding path program 1 times [2024-11-28 04:07:52,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:07:52,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1648491459] [2024-11-28 04:07:52,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:52,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:52,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:52,474 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:52,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 04:07:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:53,049 INFO L256 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-28 04:07:53,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:53,204 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:07:53,205 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 [2024-11-28 04:07:53,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:07:53,856 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:07:53,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:07:53,955 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:07:53,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:07:53,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:07:53,995 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:07:53,995 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:07:54,039 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2453 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_2453) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-28 04:07:54,049 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2453 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_2453) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 04:07:54,506 INFO L349 Elim1Store]: treesize reduction 7, result has 77.4 percent of original size [2024-11-28 04:07:54,507 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 37 treesize of output 36 [2024-11-28 04:07:54,516 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2453 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2499 (Array (_ BitVec 32) (_ BitVec 32)))) (= (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_2499))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2453)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem34#1.base|)) is different from false [2024-11-28 04:07:54,518 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:07:54,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648491459] [2024-11-28 04:07:54,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648491459] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:54,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1462880865] [2024-11-28 04:07:54,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:54,518 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:07:54,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:07:54,520 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:07:54,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-28 04:07:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:57,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-28 04:07:57,919 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:57,924 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 [2024-11-28 04:07:58,134 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 04:07:58,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-28 04:07:58,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:07:58,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-28 04:07:59,651 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:07:59,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:07:59,875 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:07:59,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:07:59,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:07:59,996 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:07:59,996 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:00,018 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2923 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_2923) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-28 04:08:00,027 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2923 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_2923) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 04:08:00,481 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2969 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2923 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_2969))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2923)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:08:00,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1462880865] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:00,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:08:00,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2024-11-28 04:08:00,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805747471] [2024-11-28 04:08:00,485 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:00,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 04:08:00,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:08:00,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 04:08:00,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=358, Unknown=6, NotChecked=258, Total=702 [2024-11-28 04:08:00,487 INFO L87 Difference]: Start difference. First operand 1196 states and 1435 transitions. Second operand has 20 states, 17 states have (on average 7.411764705882353) internal successors, (126), 19 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:08:08,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:08,721 INFO L93 Difference]: Finished difference Result 1655 states and 2019 transitions. [2024-11-28 04:08:08,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:08:08,722 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 7.411764705882353) internal successors, (126), 19 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 122 [2024-11-28 04:08:08,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:08,726 INFO L225 Difference]: With dead ends: 1655 [2024-11-28 04:08:08,726 INFO L226 Difference]: Without dead ends: 1655 [2024-11-28 04:08:08,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 230 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=105, Invalid=513, Unknown=6, NotChecked=306, Total=930 [2024-11-28 04:08:08,727 INFO L435 NwaCegarLoop]: 505 mSDtfsCounter, 841 mSDsluCounter, 3635 mSDsCounter, 0 mSdLazyCounter, 3640 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 4140 SdHoareTripleChecker+Invalid, 3652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:08,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 4140 Invalid, 3652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3640 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-28 04:08:08,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2024-11-28 04:08:08,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1195. [2024-11-28 04:08:08,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 830 states have (on average 1.716867469879518) internal successors, (1425), 1188 states have internal predecessors, (1425), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:08:08,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1434 transitions. [2024-11-28 04:08:08,752 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1434 transitions. Word has length 122 [2024-11-28 04:08:08,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:08,752 INFO L471 AbstractCegarLoop]: Abstraction has 1195 states and 1434 transitions. [2024-11-28 04:08:08,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 7.411764705882353) internal successors, (126), 19 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:08:08,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1434 transitions. [2024-11-28 04:08:08,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 04:08:08,754 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:08,754 INFO L218 NwaCegarLoop]: trace histogram [44, 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, 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] [2024-11-28 04:08:08,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-28 04:08:08,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2024-11-28 04:08:09,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:08:09,155 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:08:09,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:09,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1269609853, now seen corresponding path program 1 times [2024-11-28 04:08:09,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:08:09,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [369566635] [2024-11-28 04:08:09,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:09,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:09,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:09,159 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:09,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 04:08:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:09,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 112 conjuncts are in the unsatisfiable core [2024-11-28 04:08:09,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:10,057 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 [2024-11-28 04:08:10,080 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:08:10,081 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 [2024-11-28 04:08:10,156 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 13 treesize of output 9 [2024-11-28 04:08:10,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:08:10,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:08:10,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2024-11-28 04:08:11,384 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:08:11,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:08:11,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:08:11,562 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:08:11,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:08:11,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:08:11,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 04:08:11,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2024-11-28 04:08:11,649 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:08:11,649 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:11,851 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3439 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3439) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_ArrVal_3439 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3438 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3439) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv8 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3438) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:08:11,882 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_3439 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3438 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_3439) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv8 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_3438) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_3439 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_3439) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse2 (_ bv4 32)) (bvadd .cse2 (_ bv8 32)))))))) is different from false [2024-11-28 04:08:13,542 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3439 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3530 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3531 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_3530) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_3531) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3439) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_3439 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3438 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3530 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3531 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_3531))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_3530) .cse2 v_ArrVal_3439) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_3438) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-28 04:08:13,555 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:08:13,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369566635] [2024-11-28 04:08:13,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369566635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:13,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1581036936] [2024-11-28 04:08:13,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:13,556 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:08:13,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:08:13,558 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:08:13,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2024-11-28 04:08:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:17,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 114 conjuncts are in the unsatisfiable core [2024-11-28 04:08:17,138 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:17,141 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 [2024-11-28 04:08:17,276 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 [2024-11-28 04:08:17,290 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:08:17,291 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 [2024-11-28 04:08:17,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:08:17,313 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 13 treesize of output 9 [2024-11-28 04:08:17,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:08:17,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2024-11-28 04:08:18,242 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:08:18,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:08:18,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:08:18,340 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:08:18,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:08:18,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:08:18,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 04:08:18,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2024-11-28 04:08:18,393 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:08:18,393 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:18,455 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_4002 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4002) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_ArrVal_4003 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4002 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4002) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv8 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4003) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:08:18,480 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_4003 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4002 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_4002) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_4003) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_4002 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_4002) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse2) (bvadd (_ bv8 32) .cse2))))))) is different from false [2024-11-28 04:08:20,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1581036936] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:20,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:08:20,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 10 [2024-11-28 04:08:20,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740745996] [2024-11-28 04:08:20,267 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:20,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:08:20,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:08:20,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:08:20,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=147, Unknown=12, NotChecked=140, Total=342 [2024-11-28 04:08:20,269 INFO L87 Difference]: Start difference. First operand 1195 states and 1434 transitions. Second operand has 11 states, 9 states have (on average 12.0) internal successors, (108), 11 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:08:31,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:31,210 INFO L93 Difference]: Finished difference Result 1652 states and 2016 transitions. [2024-11-28 04:08:31,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:08:31,210 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 12.0) internal successors, (108), 11 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2024-11-28 04:08:31,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:31,216 INFO L225 Difference]: With dead ends: 1652 [2024-11-28 04:08:31,216 INFO L226 Difference]: Without dead ends: 1652 [2024-11-28 04:08:31,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 236 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=79, Invalid=306, Unknown=15, NotChecked=200, Total=600 [2024-11-28 04:08:31,218 INFO L435 NwaCegarLoop]: 508 mSDtfsCounter, 842 mSDsluCounter, 2279 mSDsCounter, 0 mSdLazyCounter, 4062 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 2787 SdHoareTripleChecker+Invalid, 4068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:31,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 2787 Invalid, 4068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4062 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2024-11-28 04:08:31,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1652 states. [2024-11-28 04:08:31,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1652 to 1194. [2024-11-28 04:08:31,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1194 states, 830 states have (on average 1.7156626506024097) internal successors, (1424), 1187 states have internal predecessors, (1424), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:08:31,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1433 transitions. [2024-11-28 04:08:31,237 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1433 transitions. Word has length 122 [2024-11-28 04:08:31,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:31,237 INFO L471 AbstractCegarLoop]: Abstraction has 1194 states and 1433 transitions. [2024-11-28 04:08:31,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 12.0) internal successors, (108), 11 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:08:31,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1433 transitions. [2024-11-28 04:08:31,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 04:08:31,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:31,239 INFO L218 NwaCegarLoop]: trace histogram [44, 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, 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] [2024-11-28 04:08:31,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2024-11-28 04:08:31,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-28 04:08:31,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:31,640 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr88REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:08:31,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:31,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1464820241, now seen corresponding path program 1 times [2024-11-28 04:08:31,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:08:31,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [564861247] [2024-11-28 04:08:31,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:31,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:31,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:31,643 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:31,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 04:08:32,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:32,403 INFO L256 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-28 04:08:32,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:32,610 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:08:32,610 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 [2024-11-28 04:08:32,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:08:33,112 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:08:33,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 04:08:33,190 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:08:33,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 04:08:33,257 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:08:33,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:08:33,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:08:33,337 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:08:33,337 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:33,415 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-28 04:08:33,416 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 25 treesize of output 24 [2024-11-28 04:08:33,498 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4533 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_4533) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse0)))) is different from false [2024-11-28 04:08:33,518 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4533 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4532 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4532)) (.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_4533) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))) is different from false [2024-11-28 04:08:33,531 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4533 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4532 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_4532))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_4533) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1))))) is different from false [2024-11-28 04:08:34,072 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4579 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4533 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4532 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_4579))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_4532)))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_4533) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-28 04:08:34,075 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:08:34,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564861247] [2024-11-28 04:08:34,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564861247] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:34,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [344823981] [2024-11-28 04:08:34,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:34,076 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:08:34,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:08:34,078 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:08:34,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2024-11-28 04:08:48,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:48,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-28 04:08:48,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:48,497 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 [2024-11-28 04:08:48,696 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 04:08:48,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-28 04:08:48,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:08:48,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-28 04:08:50,069 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:08:50,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:08:50,241 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:08:50,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:08:50,351 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:08:50,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:08:50,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:08:50,474 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:08:50,474 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:50,604 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5019 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_5019) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 04:08:50,622 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5018 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5019 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5018))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5019)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:08:50,634 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5018 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5019 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5018))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5019)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2024-11-28 04:08:51,106 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5018 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5019 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5065 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5065))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5018)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5019)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:08:51,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [344823981] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:51,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:08:51,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 20 [2024-11-28 04:08:51,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216665463] [2024-11-28 04:08:51,110 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:51,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 04:08:51,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:08:51,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 04:08:51,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=460, Unknown=25, NotChecked=408, Total=992 [2024-11-28 04:08:51,112 INFO L87 Difference]: Start difference. First operand 1194 states and 1433 transitions. Second operand has 21 states, 18 states have (on average 7.333333333333333) internal successors, (132), 21 states have internal predecessors, (132), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:09:05,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:05,297 INFO L93 Difference]: Finished difference Result 1653 states and 2017 transitions. [2024-11-28 04:09:05,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:09:05,299 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 7.333333333333333) internal successors, (132), 21 states have internal predecessors, (132), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 125 [2024-11-28 04:09:05,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:05,303 INFO L225 Difference]: With dead ends: 1653 [2024-11-28 04:09:05,303 INFO L226 Difference]: Without dead ends: 1653 [2024-11-28 04:09:05,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 237 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=112, Invalid=545, Unknown=25, NotChecked=440, Total=1122 [2024-11-28 04:09:05,304 INFO L435 NwaCegarLoop]: 506 mSDtfsCounter, 832 mSDsluCounter, 6544 mSDsCounter, 0 mSdLazyCounter, 6195 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 7050 SdHoareTripleChecker+Invalid, 6205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 6195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:05,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 7050 Invalid, 6205 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 6195 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2024-11-28 04:09:05,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2024-11-28 04:09:05,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1193. [2024-11-28 04:09:05,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 830 states have (on average 1.7144578313253012) internal successors, (1423), 1186 states have internal predecessors, (1423), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:09:05,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1432 transitions. [2024-11-28 04:09:05,324 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1432 transitions. Word has length 125 [2024-11-28 04:09:05,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:05,325 INFO L471 AbstractCegarLoop]: Abstraction has 1193 states and 1432 transitions. [2024-11-28 04:09:05,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 7.333333333333333) internal successors, (132), 21 states have internal predecessors, (132), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:09:05,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1432 transitions. [2024-11-28 04:09:05,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 04:09:05,326 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:05,326 INFO L218 NwaCegarLoop]: trace histogram [44, 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, 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] [2024-11-28 04:09:05,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:05,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:05,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:09:05,727 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr89REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:09:05,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:05,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1464820240, now seen corresponding path program 1 times [2024-11-28 04:09:05,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:09:05,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [620208187] [2024-11-28 04:09:05,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:05,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:05,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:05,731 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:05,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 04:09:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:06,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 115 conjuncts are in the unsatisfiable core [2024-11-28 04:09:06,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:06,702 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 [2024-11-28 04:09:06,721 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:09:06,722 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 [2024-11-28 04:09:06,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:09:06,773 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 13 treesize of output 9 [2024-11-28 04:09:06,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:09:06,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2024-11-28 04:09:07,950 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:09:07,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:09:07,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:09:08,095 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:09:08,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:09:08,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:09:08,227 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:09:08,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:09:08,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:09:08,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 04:09:08,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2024-11-28 04:09:08,315 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:09:08,315 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:08,497 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5552 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_5552) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:09:08,539 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5552 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_5552) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse2 (_ bv8 32)) (bvadd .cse2 (_ bv12 32)))))))) is different from false [2024-11-28 04:09:08,659 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5549) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5550) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_5549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5552 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5550))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5549) .cse2 v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_5552) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-28 04:09:08,737 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_5549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_5549) (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_5550) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_5549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5552 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_5550))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_5549) .cse3 v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_5552) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false [2024-11-28 04:09:10,740 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5643 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5644 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5552 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5643))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_5550))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5644) .cse0 v_ArrVal_5549) .cse1 v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_5552) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_5549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5643 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5644 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5643))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5644) .cse6 v_ArrVal_5549) (select (select (store .cse7 .cse6 v_ArrVal_5550) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_5551))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse5) (bvadd (_ bv12 32) .cse5)))))) is different from false [2024-11-28 04:09:10,754 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:09:10,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620208187] [2024-11-28 04:09:10,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620208187] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:10,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1745540638] [2024-11-28 04:09:10,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:10,755 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:09:10,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:09:10,756 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:09:10,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-11-28 04:09:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:25,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 118 conjuncts are in the unsatisfiable core [2024-11-28 04:09:25,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:25,791 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 [2024-11-28 04:09:26,152 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:09:26,152 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 [2024-11-28 04:09:26,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2024-11-28 04:09:26,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:09:26,206 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 13 treesize of output 9 [2024-11-28 04:09:26,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:09:26,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2024-11-28 04:09:27,803 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:09:27,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:09:27,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:09:27,957 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:09:27,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:09:27,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:09:28,082 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:09:28,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:09:28,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:09:28,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 04:09:28,161 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2024-11-28 04:09:28,163 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:09:28,163 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:28,294 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6132 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6132) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:09:28,337 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6132 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_6132) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-28 04:09:28,433 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6132 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6131))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6130) .cse0 v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_6132) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6130) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6131) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse3) (bvadd (_ bv12 32) .cse3)))))) is different from false [2024-11-28 04:09:28,531 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6132 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_6131))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_6130) .cse1 v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_6132) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_6130) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_6131) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse4) (bvadd (_ bv12 32) .cse4))))))) is different from false [2024-11-28 04:09:31,017 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6224 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6225 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_6225))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_6224) .cse1 v_ArrVal_6130) (select (select (store .cse2 .cse1 v_ArrVal_6131) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_6133))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6224 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6225 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6132 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_6225))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_6131))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv12 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_6224) .cse4 v_ArrVal_6130) .cse5 v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_6132) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false [2024-11-28 04:09:31,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1745540638] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:31,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:09:31,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 11 [2024-11-28 04:09:31,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296597010] [2024-11-28 04:09:31,033 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:31,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:09:31,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:09:31,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:09:31,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=158, Unknown=10, NotChecked=330, Total=552 [2024-11-28 04:09:31,034 INFO L87 Difference]: Start difference. First operand 1193 states and 1432 transitions. Second operand has 12 states, 10 states have (on average 11.1) internal successors, (111), 12 states have internal predecessors, (111), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:09:48,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:48,526 INFO L93 Difference]: Finished difference Result 1650 states and 2014 transitions. [2024-11-28 04:09:48,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:09:48,526 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 11.1) internal successors, (111), 12 states have internal predecessors, (111), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2024-11-28 04:09:48,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:48,529 INFO L225 Difference]: With dead ends: 1650 [2024-11-28 04:09:48,529 INFO L226 Difference]: Without dead ends: 1650 [2024-11-28 04:09:48,530 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 243 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=96, Invalid=354, Unknown=10, NotChecked=470, Total=930 [2024-11-28 04:09:48,530 INFO L435 NwaCegarLoop]: 507 mSDtfsCounter, 840 mSDsluCounter, 2283 mSDsCounter, 0 mSdLazyCounter, 4061 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 4067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:48,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 2790 Invalid, 4067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4061 Invalid, 0 Unknown, 0 Unchecked, 16.9s Time] [2024-11-28 04:09:48,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2024-11-28 04:09:48,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1192. [2024-11-28 04:09:48,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1192 states, 830 states have (on average 1.7132530120481928) internal successors, (1422), 1185 states have internal predecessors, (1422), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:09:48,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1431 transitions. [2024-11-28 04:09:48,544 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1431 transitions. Word has length 125 [2024-11-28 04:09:48,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:48,544 INFO L471 AbstractCegarLoop]: Abstraction has 1192 states and 1431 transitions. [2024-11-28 04:09:48,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 11.1) internal successors, (111), 12 states have internal predecessors, (111), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:09:48,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1431 transitions. [2024-11-28 04:09:48,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 04:09:48,546 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:48,546 INFO L218 NwaCegarLoop]: trace histogram [44, 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, 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] [2024-11-28 04:09:48,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-28 04:09:48,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2024-11-28 04:09:48,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:09:48,947 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr92REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:09:48,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:48,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1591733623, now seen corresponding path program 1 times [2024-11-28 04:09:48,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:09:48,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [703870427] [2024-11-28 04:09:48,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:48,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:48,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:48,950 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:48,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 04:09:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:49,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-28 04:09:49,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:50,061 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:09:50,061 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 [2024-11-28 04:09:50,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:09:50,830 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:09:50,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 04:09:50,956 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:09:50,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 04:09:51,085 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:09:51,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 04:09:51,213 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:09:51,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:09:51,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:09:51,382 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:09:51,382 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:51,492 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-28 04:09:51,493 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 25 treesize of output 24 [2024-11-28 04:09:51,505 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6679 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6679) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)) |c_ULTIMATE.start_main_#t~mem38#1.base|)) is different from false [2024-11-28 04:09:51,521 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6679 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= .cse0 (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_6679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))) is different from false [2024-11-28 04:09:51,546 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6678 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6678)) (.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_6679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1)))) is different from false [2024-11-28 04:09:51,565 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6678 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6678))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_6679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-28 04:09:51,592 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6677 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6678 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6677))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6678)))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_6679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1))))) is different from false [2024-11-28 04:09:51,612 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6677 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6678 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6677))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6678)))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_6679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1))))) is different from false [2024-11-28 04:09:52,295 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6725 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6677 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6678 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_6725))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6677)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6678)))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_6679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1))))) is different from false [2024-11-28 04:09:52,300 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:09:52,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703870427] [2024-11-28 04:09:52,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703870427] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:52,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [779381987] [2024-11-28 04:09:52,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:52,300 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:09:52,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:09:52,302 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:09:52,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2024-11-28 04:10:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:10,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-28 04:10:10,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:10,386 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 [2024-11-28 04:10:10,774 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 04:10:10,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-28 04:10:10,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:10:11,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-28 04:10:13,234 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:10:13,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:10:13,547 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:10:13,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:10:13,771 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:10:13,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:10:14,012 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:10:14,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:10:14,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:10:14,196 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:10:14,197 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:14,401 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7181 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_7181) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 04:10:14,425 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7181 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_7180))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7181)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2024-11-28 04:10:14,443 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7181 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7180))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7181)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:10:14,472 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7181 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7179 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7179))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7180)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7181)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:10:14,498 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7181 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7179 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7179))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7180)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7181)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:10:15,182 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7181 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7227 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7179 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_7227))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7179)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7180)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7181)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:10:15,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [779381987] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:15,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:10:15,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2024-11-28 04:10:15,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941472896] [2024-11-28 04:10:15,189 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:15,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 04:10:15,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:10:15,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 04:10:15,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=513, Unknown=23, NotChecked=754, Total=1406 [2024-11-28 04:10:15,191 INFO L87 Difference]: Start difference. First operand 1192 states and 1431 transitions. Second operand has 23 states, 20 states have (on average 6.9) internal successors, (138), 23 states have internal predecessors, (138), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:10:35,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:35,725 INFO L93 Difference]: Finished difference Result 1651 states and 2015 transitions. [2024-11-28 04:10:35,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:10:35,726 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 6.9) internal successors, (138), 23 states have internal predecessors, (138), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 128 [2024-11-28 04:10:35,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:35,729 INFO L225 Difference]: With dead ends: 1651 [2024-11-28 04:10:35,729 INFO L226 Difference]: Without dead ends: 1651 [2024-11-28 04:10:35,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 243 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 13 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=129, Invalid=601, Unknown=24, NotChecked=806, Total=1560 [2024-11-28 04:10:35,730 INFO L435 NwaCegarLoop]: 505 mSDtfsCounter, 831 mSDsluCounter, 5599 mSDsCounter, 0 mSdLazyCounter, 5321 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 6104 SdHoareTripleChecker+Invalid, 5335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 5321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:35,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 6104 Invalid, 5335 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 5321 Invalid, 0 Unknown, 0 Unchecked, 20.2s Time] [2024-11-28 04:10:35,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2024-11-28 04:10:35,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1191. [2024-11-28 04:10:35,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1191 states, 830 states have (on average 1.7120481927710844) internal successors, (1421), 1184 states have internal predecessors, (1421), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:10:35,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 1191 states and 1430 transitions. [2024-11-28 04:10:35,751 INFO L78 Accepts]: Start accepts. Automaton has 1191 states and 1430 transitions. Word has length 128 [2024-11-28 04:10:35,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:35,751 INFO L471 AbstractCegarLoop]: Abstraction has 1191 states and 1430 transitions. [2024-11-28 04:10:35,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 6.9) internal successors, (138), 23 states have internal predecessors, (138), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:10:35,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1191 states and 1430 transitions. [2024-11-28 04:10:35,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 04:10:35,755 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:35,756 INFO L218 NwaCegarLoop]: trace histogram [44, 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, 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] [2024-11-28 04:10:35,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2024-11-28 04:10:35,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-28 04:10:36,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:36,156 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr93REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:10:36,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:36,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1591733622, now seen corresponding path program 1 times [2024-11-28 04:10:36,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:10:36,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1490447065] [2024-11-28 04:10:36,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:36,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:36,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:36,159 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:36,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 04:10:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:36,939 INFO L256 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 118 conjuncts are in the unsatisfiable core [2024-11-28 04:10:36,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:37,305 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:10:37,306 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 [2024-11-28 04:10:37,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2024-11-28 04:10:37,387 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 13 treesize of output 9 [2024-11-28 04:10:37,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:10:37,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:10:37,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2024-11-28 04:10:39,058 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:10:39,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:10:39,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:10:39,297 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:10:39,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:10:39,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:10:39,508 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:10:39,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:10:39,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:10:39,737 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:10:39,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:10:39,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:10:39,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 04:10:39,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2024-11-28 04:10:39,913 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:10:39,913 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:40,192 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7730) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv20 32) .cse1) (bvadd (_ bv24 32) .cse1)))))) is different from false [2024-11-28 04:10:40,236 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_7730) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-28 04:10:40,353 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_7729))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_7728) .cse0 v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_7730) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_7728) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_7729) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse3) (bvadd (_ bv24 32) .cse3)))))) is different from false [2024-11-28 04:10:40,435 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_7729))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7728) .cse1 v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv24 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_7730) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7728) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_7729) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse4 (_ bv20 32)) (bvadd .cse4 (_ bv24 32)))))))) is different from false [2024-11-28 04:10:40,728 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7727 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7727))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_7729))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7726) .cse0 v_ArrVal_7728) .cse1 v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_7730) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7727 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7727))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7726) .cse6 v_ArrVal_7728) (select (select (store .cse7 .cse6 v_ArrVal_7729) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7731))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse5) (bvadd (_ bv24 32) .cse5)))))) is different from false [2024-11-28 04:10:50,077 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7727 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7823 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7822 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_7823))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_7727))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_7729))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_7822) .cse0 v_ArrVal_7726) .cse1 v_ArrVal_7728) .cse2 v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_7730) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7727 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7823 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7822 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (select (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_7823))) (let ((.cse8 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse10 (store .cse11 .cse8 v_ArrVal_7727))) (let ((.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_7822) .cse8 v_ArrVal_7726) .cse9 v_ArrVal_7728) (select (select (store .cse10 .cse9 v_ArrVal_7729) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_7731))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv20 32) .cse7) (bvadd (_ bv24 32) .cse7)))))) is different from false [2024-11-28 04:10:50,119 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:10:50,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490447065] [2024-11-28 04:10:50,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490447065] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:50,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [139321794] [2024-11-28 04:10:50,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:50,119 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:10:50,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:10:50,121 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:10:50,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2024-11-28 04:11:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:08,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 119 conjuncts are in the unsatisfiable core [2024-11-28 04:11:08,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:08,681 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 [2024-11-28 04:11:12,393 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:11:12,393 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 [2024-11-28 04:11:12,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2024-11-28 04:11:12,780 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 13 treesize of output 9 [2024-11-28 04:11:12,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:11:13,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:11:13,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2024-11-28 04:11:26,385 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:11:26,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:11:26,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:11:27,798 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:11:27,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:11:27,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:11:28,874 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:11:28,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:11:29,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:11:29,962 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:11:29,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:11:30,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:11:30,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 04:11:30,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2024-11-28 04:11:30,602 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:11:30,602 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:31,157 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv24 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd .cse1 (_ bv20 32)) (bvadd .cse1 (_ bv24 32))))))) is different from false [2024-11-28 04:11:31,355 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse0 (_ bv20 32)) (bvadd .cse0 (_ bv24 32))))) (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv24 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-28 04:11:31,679 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_8326) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_8325) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_8325))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_8326) .cse2 v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-28 04:11:31,886 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_8325))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_8326) .cse1 v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_8326) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_8325) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse4) (bvadd (_ bv24 32) .cse4))))))) is different from false [2024-11-28 04:11:32,221 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8324 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8323 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8323))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8324) .cse1 v_ArrVal_8326) (select (select (store .cse2 .cse1 v_ArrVal_8325) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_8328))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8324 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8323 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8323))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_8325))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8324) .cse4 v_ArrVal_8326) .cse5 v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false [2024-11-28 04:11:32,437 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (and (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8324 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8323 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_8323))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8324) .cse2 v_ArrVal_8326) (select (select (store .cse3 .cse2 v_ArrVal_8325) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_8328))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8324 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8323 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_8323))) (let ((.cse5 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse7 (store .cse8 .cse5 v_ArrVal_8325))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8324) .cse5 v_ArrVal_8326) .cse6 v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select |c_#length| (select (select (store .cse7 .cse6 v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))))))))) is different from false [2024-11-28 04:11:38,572 WARN L286 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 356 (called from [L 276] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2024-11-28 04:11:40,652 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8419 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8324 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8323 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8420 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_8419))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_8323))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_8325))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_8420) .cse0 v_ArrVal_8324) .cse1 v_ArrVal_8326) .cse2 v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) (forall ((v_ArrVal_8419 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8324 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8323 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8420 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (select (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_8419))) (let ((.cse8 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse10 (store .cse11 .cse8 v_ArrVal_8323))) (let ((.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_8420) .cse8 v_ArrVal_8324) .cse9 v_ArrVal_8326) (select (select (store .cse10 .cse9 v_ArrVal_8325) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_8328))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv20 32) .cse7) (bvadd (_ bv24 32) .cse7)))))) is different from false [2024-11-28 04:11:40,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [139321794] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:40,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:11:40,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 12 [2024-11-28 04:11:40,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514071965] [2024-11-28 04:11:40,782 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:40,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:11:40,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:11:40,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:11:40,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=204, Unknown=17, NotChecked=520, Total=812 [2024-11-28 04:11:40,783 INFO L87 Difference]: Start difference. First operand 1191 states and 1430 transitions. Second operand has 13 states, 11 states have (on average 10.363636363636363) internal successors, (114), 13 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:14:22,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:14:22,743 INFO L93 Difference]: Finished difference Result 1648 states and 2012 transitions. [2024-11-28 04:14:22,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:14:22,744 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 10.363636363636363) internal successors, (114), 13 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 128 [2024-11-28 04:14:22,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:14:22,748 INFO L225 Difference]: With dead ends: 1648 [2024-11-28 04:14:22,749 INFO L226 Difference]: Without dead ends: 1648 [2024-11-28 04:14:22,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 250 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 13 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=126, Invalid=461, Unknown=17, NotChecked=728, Total=1332 [2024-11-28 04:14:22,750 INFO L435 NwaCegarLoop]: 506 mSDtfsCounter, 838 mSDsluCounter, 2900 mSDsCounter, 0 mSdLazyCounter, 5240 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 154.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 3406 SdHoareTripleChecker+Invalid, 5246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 5240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 156.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:14:22,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 3406 Invalid, 5246 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 5240 Invalid, 0 Unknown, 0 Unchecked, 156.3s Time] [2024-11-28 04:14:22,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2024-11-28 04:14:22,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1190. [2024-11-28 04:14:22,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1190 states, 830 states have (on average 1.7108433734939759) internal successors, (1420), 1183 states have internal predecessors, (1420), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:14:22,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 1429 transitions. [2024-11-28 04:14:22,769 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 1429 transitions. Word has length 128 [2024-11-28 04:14:22,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:14:22,770 INFO L471 AbstractCegarLoop]: Abstraction has 1190 states and 1429 transitions. [2024-11-28 04:14:22,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 10.363636363636363) internal successors, (114), 13 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:14:22,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 1429 transitions. [2024-11-28 04:14:22,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 04:14:22,772 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:14:22,772 INFO L218 NwaCegarLoop]: trace histogram [44, 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, 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] [2024-11-28 04:14:22,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-28 04:14:23,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2024-11-28 04:14:23,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:14:23,174 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr96REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:14:23,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:14:23,175 INFO L85 PathProgramCache]: Analyzing trace with hash 385163595, now seen corresponding path program 1 times [2024-11-28 04:14:23,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:14:23,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [636389370] [2024-11-28 04:14:23,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:14:23,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:14:23,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:14:23,179 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:14:23,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 04:14:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:14:24,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 930 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-28 04:14:24,185 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:14:27,215 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:14:27,215 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 [2024-11-28 04:14:27,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:14:37,133 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:14:37,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:14:39,035 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:14:39,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:14:40,445 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:14:40,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:14:41,949 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:14:41,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:14:43,536 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:14:43,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:14:43,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:14:45,087 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-28 04:14:45,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-28 04:14:45,145 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:14:45,145 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:14:48,085 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_8892) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 04:14:48,272 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8891 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8891))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:14:48,406 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8891 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8891))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:14:48,596 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8891 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8890 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_8890))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8891)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:14:48,733 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8891 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8890 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8890))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8891)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:14:48,928 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8891 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8890 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8889 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8889))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8890)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8891)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:14:49,066 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8891 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8890 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8889 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8889))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8890)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8891)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:14:52,934 INFO L349 Elim1Store]: treesize reduction 7, result has 96.5 percent of original size [2024-11-28 04:14:52,934 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 205 treesize of output 204 [2024-11-28 04:14:53,051 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8891 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8939 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8890 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8889 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem34#1.base| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_8939))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8889)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8890)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8891)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) is different from false [2024-11-28 04:14:53,082 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:14:53,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636389370] [2024-11-28 04:14:53,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636389370] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:14:53,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [84984375] [2024-11-28 04:14:53,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:14:53,082 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:14:53,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:14:53,084 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:14:53,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2024-11-28 04:15:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:15:02,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 930 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-11-28 04:15:02,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:15:02,476 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 [2024-11-28 04:15:05,853 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 04:15:05,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-28 04:15:06,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:15:09,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-28 04:15:27,780 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:15:27,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:15:30,967 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:15:30,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:15:33,043 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:15:33,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:15:35,059 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:15:35,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:15:37,158 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:15:37,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:15:37,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:15:40,014 INFO L349 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2024-11-28 04:15:40,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36 [2024-11-28 04:15:40,193 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:15:40,193 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:15:41,539 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9413 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_9413) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-28 04:15:41,673 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9413 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_9413) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 04:15:41,866 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9413 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9412 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_9412))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9413)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:15:41,999 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9413 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9412 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9412))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9413)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:15:42,192 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9413 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9412 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9411 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_9411))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9412)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9413)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:15:42,326 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9413 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9412 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9411 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9411))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9412)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9413)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:15:42,522 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9413 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9412 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9411 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9410 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_9410))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9411)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9412)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9413)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:15:42,662 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9413 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9412 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9411 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9410 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9410))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9411)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9412)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9413)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:15:47,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [84984375] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:15:47,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:15:47,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 26 [2024-11-28 04:15:47,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817733663] [2024-11-28 04:15:47,652 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:15:47,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 04:15:47,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:15:47,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 04:15:47,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=757, Unknown=23, NotChecked=1136, Total=2070 [2024-11-28 04:15:47,653 INFO L87 Difference]: Start difference. First operand 1190 states and 1429 transitions. Second operand has 27 states, 24 states have (on average 6.083333333333333) internal successors, (146), 25 states have internal predecessors, (146), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:17:46,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:17:46,585 INFO L93 Difference]: Finished difference Result 1649 states and 2013 transitions. [2024-11-28 04:17:46,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:17:46,586 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 6.083333333333333) internal successors, (146), 25 states have internal predecessors, (146), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 132 [2024-11-28 04:17:46,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:17:46,588 INFO L225 Difference]: With dead ends: 1649 [2024-11-28 04:17:46,588 INFO L226 Difference]: Without dead ends: 1649 [2024-11-28 04:17:46,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 249 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 16 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 25.7s TimeCoverageRelationStatistics Valid=167, Invalid=865, Unknown=24, NotChecked=1200, Total=2256 [2024-11-28 04:17:46,590 INFO L435 NwaCegarLoop]: 502 mSDtfsCounter, 829 mSDsluCounter, 4114 mSDsCounter, 0 mSdLazyCounter, 4112 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 116.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 4616 SdHoareTripleChecker+Invalid, 4127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 4112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 117.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:17:46,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 4616 Invalid, 4127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 4112 Invalid, 0 Unknown, 0 Unchecked, 117.6s Time] [2024-11-28 04:17:46,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2024-11-28 04:17:46,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1189. [2024-11-28 04:17:46,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1189 states, 830 states have (on average 1.7096385542168675) internal successors, (1419), 1182 states have internal predecessors, (1419), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:17:46,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1428 transitions. [2024-11-28 04:17:46,602 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1428 transitions. Word has length 132 [2024-11-28 04:17:46,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:17:46,602 INFO L471 AbstractCegarLoop]: Abstraction has 1189 states and 1428 transitions. [2024-11-28 04:17:46,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 6.083333333333333) internal successors, (146), 25 states have internal predecessors, (146), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:17:46,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1428 transitions. [2024-11-28 04:17:46,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 04:17:46,604 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:17:46,604 INFO L218 NwaCegarLoop]: trace histogram [44, 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, 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] [2024-11-28 04:17:46,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-28 04:17:46,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (37)] Forceful destruction successful, exit code 0 [2024-11-28 04:17:47,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:17:47,005 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr97REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:17:47,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:17:47,005 INFO L85 PathProgramCache]: Analyzing trace with hash 385163596, now seen corresponding path program 1 times [2024-11-28 04:17:47,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:17:47,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2020694289] [2024-11-28 04:17:47,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:17:47,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:17:47,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:17:47,008 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:17:47,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81292a9f-3eb8-4e86-b7da-a5eba415dc27/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-28 04:17:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:17:47,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 930 conjuncts, 124 conjuncts are in the unsatisfiable core [2024-11-28 04:17:47,959 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:17:50,906 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:17:50,906 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 [2024-11-28 04:17:51,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2024-11-28 04:17:51,517 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 13 treesize of output 9 [2024-11-28 04:17:51,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:17:53,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:17:53,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2024-11-28 04:18:08,774 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:18:08,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-28 04:18:08,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:18:11,555 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:18:11,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-28 04:18:11,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:18:13,856 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:18:13,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-28 04:18:13,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:18:16,077 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:18:16,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-28 04:18:16,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:18:18,513 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:18:18,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-28 04:18:18,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:18:19,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 20 [2024-11-28 04:18:19,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2024-11-28 04:18:20,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:18:20,778 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-11-28 04:18:20,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 21 [2024-11-28 04:18:21,082 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:18:21,082 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 [2024-11-28 04:18:21,914 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:18:21,914 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:18:27,253 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32)) (v_ArrVal_9983 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))) (forall ((v_ArrVal_9984 (_ BitVec 32))) (bvule (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc41#1.base_8| v_ArrVal_9984) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_9983) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) (or (forall ((v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule .cse1 (bvadd (_ bv4 32) .cse1)))) (forall ((|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))))))) is different from false [2024-11-28 04:18:27,690 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (or (forall ((v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule .cse0 (bvadd .cse0 (_ bv4 32))))) (forall ((|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))))) (forall ((|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32)) (v_ArrVal_9983 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))) (forall ((v_ArrVal_9984 (_ BitVec 32))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv4 32)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc41#1.base_8| v_ArrVal_9984) (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_9983) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false [2024-11-28 04:18:28,545 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (or (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_9981) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_9980) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule .cse0 (bvadd .cse0 (_ bv4 32))))) (forall ((|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))))) (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32)) (v_ArrVal_9983 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))) (forall ((v_ArrVal_9984 (_ BitVec 32))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_9980))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_9981) .cse2 v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv4 32)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc41#1.base_8| v_ArrVal_9984) (select (select (store .cse3 .cse2 v_ArrVal_9983) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))))) is different from false [2024-11-28 04:18:28,960 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32)) (v_ArrVal_9983 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))) (forall ((v_ArrVal_9984 (_ BitVec 32))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_9980))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv4 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_9981) .cse1 v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc41#1.base_8| v_ArrVal_9984) (select (select (store .cse3 .cse1 v_ArrVal_9983) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (or (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_9981) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_9980) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule .cse4 (bvadd (_ bv4 32) .cse4)))) (forall ((|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|)))))))) is different from false [2024-11-28 04:18:29,704 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (or (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9979 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9978 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_9978))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_9979) .cse1 v_ArrVal_9981) (select (select (store .cse2 .cse1 v_ArrVal_9980) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_9982))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))))) (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9979 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9978 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32)) (v_ArrVal_9983 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))) (forall ((v_ArrVal_9984 (_ BitVec 32))) (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_9978))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_9980))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv4 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_9979) .cse4 v_ArrVal_9981) .cse5 v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc41#1.base_8| v_ArrVal_9984) (select (select (store .cse6 .cse5 v_ArrVal_9983) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))))) is different from false [2024-11-28 04:18:30,126 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (and (or (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9979 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9978 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_9978))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_9979) .cse2 v_ArrVal_9981) (select (select (store .cse3 .cse2 v_ArrVal_9980) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_9982))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))))) (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9979 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9978 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32)) (v_ArrVal_9983 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))) (forall ((v_ArrVal_9984 (_ BitVec 32))) (let ((.cse8 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_9978))) (let ((.cse5 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse7 (store .cse8 .cse5 v_ArrVal_9980))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv4 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_9979) .cse5 v_ArrVal_9981) .cse6 v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc41#1.base_8| v_ArrVal_9984) (select (select (store .cse7 .cse6 v_ArrVal_9983) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))))))))))) is different from false [2024-11-28 04:18:30,910 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9979 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9978 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32)) (v_ArrVal_9977 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9976 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9983 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))) (forall ((v_ArrVal_9984 (_ BitVec 32))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_9976))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_9978))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_9980))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv4 32) (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_9977) .cse0 v_ArrVal_9979) .cse1 v_ArrVal_9981) .cse2 v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc41#1.base_8| v_ArrVal_9984) (select (select (store .cse4 .cse2 v_ArrVal_9983) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))))) (or (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9979 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9978 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9977 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9976 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (select (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_9976))) (let ((.cse8 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse10 (store .cse11 .cse8 v_ArrVal_9978))) (let ((.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_9977) .cse8 v_ArrVal_9979) .cse9 v_ArrVal_9981) (select (select (store .cse10 .cse9 v_ArrVal_9980) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_9982))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule .cse7 (bvadd (_ bv4 32) .cse7)))) (forall ((|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))))))) is different from false [2024-11-28 04:18:31,413 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (and (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9979 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9978 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32)) (v_ArrVal_9977 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9976 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9983 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))) (forall ((v_ArrVal_9984 (_ BitVec 32))) (let ((.cse7 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_9976))) (let ((.cse1 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse6 (store .cse7 .cse1 v_ArrVal_9978))) (let ((.cse2 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse5 (store .cse6 .cse2 v_ArrVal_9980))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv4 32) (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_9977) .cse1 v_ArrVal_9979) .cse2 v_ArrVal_9981) .cse3 v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc41#1.base_8| v_ArrVal_9984) (select (select (store .cse5 .cse3 v_ArrVal_9983) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))))))))))) (or (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9979 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9978 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9977 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9976 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (select (select (let ((.cse12 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_9976))) (let ((.cse9 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse11 (store .cse12 .cse9 v_ArrVal_9978))) (let ((.cse10 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_9977) .cse9 v_ArrVal_9979) .cse10 v_ArrVal_9981) (select (select (store .cse11 .cse10 v_ArrVal_9980) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_9982))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule .cse8 (bvadd (_ bv4 32) .cse8)))) (forall ((|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|)))))))) is different from false [2024-11-28 04:18:38,361 WARN L286 SmtUtils]: Spent 6.56s on a formula simplification that was a NOOP. DAG size: 362 (called from [L 276] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2024-11-28 04:18:40,000 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:18:40,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 795 treesize of output 819